CN113463740A - System and method for treating rainwater - Google Patents
System and method for treating rainwater Download PDFInfo
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- CN113463740A CN113463740A CN202110753237.7A CN202110753237A CN113463740A CN 113463740 A CN113463740 A CN 113463740A CN 202110753237 A CN202110753237 A CN 202110753237A CN 113463740 A CN113463740 A CN 113463740A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 177
- 238000007599 discharging Methods 0.000 claims abstract description 20
- 230000003139 buffering effect Effects 0.000 claims description 17
- 230000005484 gravity Effects 0.000 claims description 4
- 230000001105 regulatory effect Effects 0.000 description 9
- 239000007788 liquid Substances 0.000 description 6
- 238000009825 accumulation Methods 0.000 description 4
- 101100366940 Mus musculus Stom gene Proteins 0.000 description 3
- 229920006395 saturated elastomer Polymers 0.000 description 3
- 239000002352 surface water Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000002209 hydrophobic effect Effects 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F1/00—Methods, systems, or installations for draining-off sewage or storm water
- E03F1/002—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells
- E03F1/005—Methods, systems, or installations for draining-off sewage or storm water with disposal into the ground, e.g. via dry wells via box-shaped elements
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F5/00—Sewerage structures
- E03F5/10—Collecting-tanks; Equalising-tanks for regulating the run-off; Laying-up basins
- E03F5/101—Dedicated additional structures, interposed or parallel to the sewer system
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04D—ROOF COVERINGS; SKY-LIGHTS; GUTTERS; ROOF-WORKING TOOLS
- E04D13/00—Special arrangements or devices in connection with roof coverings; Protection against birds; Roof drainage ; Sky-lights
- E04D13/04—Roof drainage; Drainage fittings in flat roofs, balconies or the like
- E04D13/08—Down pipes; Special clamping means therefor
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03F—SEWERS; CESSPOOLS
- E03F2201/00—Details, devices or methods not otherwise provided for
- E03F2201/10—Dividing the first rain flush out of the stormwater flow
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Abstract
The invention discloses a system and a method for treating rainwater, wherein the system comprises: the device comprises a rainwater vertical pipe, a buffer device and a diversion well; the water inlet pipe orifice of the rainwater vertical pipe is communicated with the top floor surface of a target building so as to collect rainwater collected by the top floor surface of the target building, and the water outlet pipe orifice of the rainwater vertical pipe is communicated with the buffer device so as to guide the rainwater to the buffer device; the buffer device comprises a storage structure and a water outlet structure, wherein the storage structure is used for caching rainwater, and the water outlet structure is used for discharging the rainwater; the diversion well is communicated with a rainwater port preset on the ground, and the diversion well is communicated with the first downstream pipeline and the second downstream pipeline respectively and is used for diverting rainwater flowing in from the rainwater port to the first downstream pipeline or the second downstream pipeline. The invention realizes the technical purpose of split-flow drainage aiming at the top surface rainwater of the target building and the initial rainwater on the ground in different periods of rainfall at different time intervals, and can be widely applied to the technical field of municipal drainage.
Description
Technical Field
The invention belongs to the technical field of municipal drainage, and particularly relates to a system and a method for treating rainwater.
Background
At present, water resources in China are insufficient, and meanwhile, urban waterlogging is frequent in recent years, and rainwater utilization gradually receives social attention. Particularly, in the aspect of non-point source treatment, problems still exist, for example, the underground water flow treatment capacity of old districts or urban villages is limited, and meanwhile, the runoff quantity generated by source rainfall is mainly divided into two parts, namely runoff rainwater generated by the roof of a building in the district and runoff rainwater generated by the ground rainwater runoff of the district; the area of the roof of the residential building is about 1/2, the roof is generally clean, the initial rainwater quality is good, the water quality pollutants of the ground runoff rainwater are more, the generated surface source pollution is serious, and the COD concentration of the ground initial rainwater is also high. If the runoff rainwater on the roof and the runoff rainwater on the ground are discharged into the underground pipe network system together, the rainwater in the underground pipe network is accumulated, and the technical problem of surface water accumulation is caused;
therefore, for the old community or the urban-rural environment, the underground pipe network system cannot simultaneously treat the roof runoff rainwater and the ground runoff rainwater of the building, and if the roof runoff rainwater and the ground runoff rainwater are simultaneously treated, the underground pipe network system is easy to lose control, so that the technical problem of surface water is caused;
that is, how to separately regulate and control roof runoff rainwater and ground runoff rainwater in rainwater drainage technologies of old communities or urban villages is a technical problem to be solved urgently in the field.
Disclosure of Invention
The invention aims to solve the technical problem of how to provide a buffering, collecting, regulating and shunting system for roof rainwater so as to at least solve part of technical problems.
To solve at least some of the above technical problems, in a first aspect, the present invention provides a system for treating rainwater, the system comprising: the device comprises a rainwater vertical pipe, a buffer device and a diversion well; the water inlet pipe orifice of the rainwater vertical pipe is communicated with the top floor surface of a target building so as to collect rainwater collected by the top floor surface of the target building, and the water outlet pipe orifice of the rainwater vertical pipe is communicated with the buffer device so as to guide the rainwater to the buffer device; the buffer device comprises a storage structure and a water outlet structure, the storage structure is used for caching rainwater, and the water outlet structure is used for discharging the rainwater; the diversion well is communicated with a rainwater port preset on the ground, is respectively communicated with a first downstream pipeline and a second downstream pipeline and is used for diverting rainwater flowing in from the rainwater port to the first downstream pipeline or the second downstream pipeline.
Based on the technical scheme, rainwater on the top floor of the target building is collected through the rainwater vertical pipe and the buffer device, and the collected rainwater is guided to the diversion well through the water outlet structure to be shunted and discharged; when the rainwater collecting device is specifically implemented, a water inlet pipe orifice of the rainwater vertical pipe is communicated with the top layer surface of a target building so as to collect rainwater collected by the top layer surface of the target building, and a water outlet pipe orifice of the rainwater vertical pipe is communicated with the buffer device so as to guide the rainwater collected by the rainwater vertical pipe to the storage device of the buffer device for storage, so that the rainwater on the ground can be guided into the diversion well through a rainwater port preset on the ground and is diverted to the first downstream pipeline by the diversion well for discharge; when the rainwater stored in the buffer device needs to be discharged, the rainwater in the device is guided to the ground through the water outlet structure arranged on the buffer device, is guided to the diversion well together with the rainwater on the ground through the rainwater inlet preset on the ground, and is diverted to the second downstream pipeline through the diversion well to be discharged; it can be understood that, in the first aspect, the rainwater stand pipe and the buffer device are arranged to collect and store initial rainwater on the top layer surface of the target building, and the initial rainwater on the ground flows into the diversion well through the water outlet preset on the ground and flows into the first downstream pipeline through the diversion well; the rainwater that the second aspect is stored with the storage structure through setting up out the water structure and converging with the middle and later stage rainwater on ground to through predetermineeing in the inlet for stom water drainage to the reposition of redundant personnel well subaerial, and shunt to second low reaches pipeline through the reposition of redundant personnel well, with this realization separately discharge the rainwater on roof and the initial stage rainwater on ground, reach the technical purpose of the reposition of redundant personnel of staggered discharge, with the technical problem of the road surface ponding of solving old district because of underground pipe network drainage ability is limited and lead to.
In the first aspect, preferably, the water outlet structure includes: the siphon, the end setting of intaking of siphon is in store the structure, the play water end setting of siphon is in store the structure outside.
In the first aspect, preferably, the water outlet structure includes: the water outlet is formed in the bottom of the buffer device.
In the first aspect, preferably, the water outlet structure further includes: and the on-off switch is arranged on the water outlet hole and used for controlling the circulation of the water outlet hole when the water outlet hole is required to discharge water.
In the first aspect, preferably, the first downstream pipe is a sewer pipe; and/or the second downstream pipe is a storm drain.
In the first aspect, preferably, the system comprises: and the storage adjusting tank is communicated with the shunting well and used for adjusting and storing rainwater flowing into the shunting well.
In a second aspect, the present invention provides a method of treating stormwater, the method comprising: in the early stage of rainfall, rainwater on the top surface of a target building is drained and collected to a buffer device for buffering, and initial rainwater on the ground is discharged to a diversion well from a rainwater inlet preset on the ground and is diverted to a first downstream pipeline by the diversion well; and in the middle and later periods of rainfall, the rainwater collected by the buffer device is discharged to the ground, is collected with the rain in the middle and later periods on the ground, is discharged to the diversion well through a rainwater port preset on the ground, and is diverted to a second downstream pipeline through the diversion well.
In the technical scheme, the rainwater in the early stage of rainfall and in the middle and later stages of rainfall is separately treated, so that the technical purpose of discharging the early rainwater on the relatively clean top layer of the building and the early rainwater on the relatively dirty ground in a staggered manner is achieved; when the method is implemented, in the early stage of rainfall, firstly, relatively clean rainwater drainage on the top layer surface of a target building is collected into a buffer device for storage, and at the moment, relatively dirty initial rainwater on the ground is discharged to a diversion well from a rainwater inlet preset on the ground and is further diverted to a first downstream pipeline through the diversion well, so that the relatively dirty initial rainwater on the ground is firstly discharged to the first downstream pipeline; in the middle and later periods of rainfall, when the rainwater on the ground becomes clear relative to the initial rainwater, the rainwater on the fixed layer of the building collected by the buffer device is discharged to the ground and mixed with the rainwater on the middle and later periods of the ground, and is discharged to the diversion well from a rainwater inlet preset on the ground together, and then is discharged to a second downstream pipeline through the diversion well; it can be understood, in the rainfall initial stage, collect the storage to the rainwater of the top layer face of target building, and the initial stage rainwater on ground flows into to the reposition of redundant personnel in through subaerial predetermined delivery port, and flow into first low reaches pipeline through the reposition of redundant personnel well, in the rainfall middle and later stages, converge the rainwater in the buffer and the middle and later stages rainwater on ground, and through predetermineeing in the rainwater mouth drainage on subaerial to the reposition of redundant personnel well, and then shunt to second low reaches pipeline through the reposition of redundant personnel well, with this realization with the rainwater on roof and the initial stage rainwater separately discharge on ground, reach the technical purpose of wrong time emission reposition of redundant personnel, in order to solve the technical problem of the road surface ponding that old district leads to because of underground pipe network hydrophobic ability is limited.
In the second aspect, preferably, the concentrating the rainwater drainage on the top floor of the target building to the buffer device for buffering comprises: and the primary rain on the top floor of the target building is drained and collected into a storage structure through the rainwater vertical pipe for storage.
In the second aspect, preferably, the discharging the rainwater collected by the buffering device to the ground includes: the storage structure is communicated through a siphon, so that the water inlet end of the siphon is arranged in the storage structure, and rainwater at the water outlet end of the siphon is drained to the ground in an initial rain mode.
In the second aspect, preferably, the discharging the rainwater collected by the buffering device to the ground further includes: and a water outlet hole is formed in the bottom of the storage structure, so that the initial rain flowing into the storage structure from the rainwater vertical pipe flows to the ground under the action of the gravity of the initial rain.
In the second aspect, preferably, the discharging the rainwater collected by the buffering device to the ground further includes: and the water outlet hole is provided with an on-off switch, so that the circulation of the water outlet hole is controlled when water is required to be discharged from the water outlet hole.
In the second aspect, preferably, after the discharging the rainwater collected by the buffer device to the ground, and collecting the rainwater with the later stage rainwater on the ground and discharging the rainwater to the diversion well through a rainwater outlet preset on the ground, the method further includes: through a regulation pond with the reposition of redundant personnel well is connected to carry out the regulation when needs the regulation to the rainwater that flows into in the reposition of redundant personnel well.
The foregoing description is only an overview of the technical solutions of the present invention, and the embodiments of the present invention are described below in order to make the technical means of the present invention more clearly understood and to make the above and other objects, features, and advantages of the present invention more clearly understandable.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings needed to be used in the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a first schematic view of a system for treating rainwater according to a first embodiment of the present invention;
fig. 2 is a second schematic view of a system for treating rainwater according to the first embodiment;
fig. 3 is a third schematic view of a system for treating rainwater according to the first embodiment;
reference numerals:
1. a rainwater stand pipe;
2. a storage structure;
3. a siphon tube;
4. a diversion well;
5. a gutter inlet;
6. a first downstream conduit;
7. a second downstream conduit;
8. a target building;
9. and (4) regulating and storing the pool.
Detailed Description
The technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the drawings in the embodiments of the present disclosure, and it is obvious that the described embodiments are only a part of the embodiments of the present disclosure, and not all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present specification are within the protection scope of the present invention; the "and/or" keyword referred to in this embodiment means sum or two cases, in other words, a and/or B mentioned in the embodiments of this specification means two cases of a and B, A or B, and describes three states where a and B exist, such as a and/or B, and means: only A does not include B; only B does not include A; including A and B.
Also, in the embodiments of the present description, when one component is referred to as being "connected" to another component, it may be directly connected to the other component or intervening components may be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present.
Furthermore, in the rainfall period, the rainwater can be divided into initial rain and middle and later rain, and the division mode can adopt a time-length method, a water quality method or a liquid level method in the prior art; for example, when the time-length method is adopted, the corresponding rainwater is the early rain in the early stage of rainfall, and the corresponding rainwater is the middle and later stage rain in the middle and later stages of rainfall; if a water quality method is adopted, when the concentration of the rainwater is higher than a certain concentration threshold value, the rainwater is the initial rainwater, and when the concentration of the rainwater is lower than a certain concentration threshold value, the rainwater is the middle and later stage rainwater; if the liquid level method is adopted, the rainwater is the initial rainwater when the liquid level of the rainwater is lower than a certain liquid level threshold, and the rainwater is the middle and later stage rainwater when the liquid level of the rainwater is higher than a certain liquid level threshold. It should be noted that, the determination of which of the above modes the initial rain or the middle and later rain specifically belongs to is not limited in the embodiment of the present application, and the determination may be selected according to actual operation requirements; in other words, any of the above-described ways of determining early rain or mid-late rain is suitable for use in the present invention.
Of course, it should be understood by those skilled in the art that, because a certain error is also allowed in the discharge process for the initial rain and the middle and later rains in the actual operation process, a certain error may exist in the specific division of each period, for example, there is a division node that is not strict between the initial rain and the middle and later rains, so that a small amount of middle and later rains are mixed in the initial rain, or the middle and later rains are mixed in the initial rain, etc.; the operation influence caused by the error does not affect the implementation effect of the whole technical scheme of the invention, and can be ignored, so that the operation influence is not considered to be in the protection range of the invention.
In addition, as for the target building in the present application, it may be a building such as a cell, an office building, a school, a hospital, and a station. In other words, any architectural application environment suitable for the present embodiment can be used as an embodiment of the present embodiment, that is, all of the embodiments belong to the protection scope of the present invention.
The first embodiment is as follows:
referring to fig. 1-2, in one embodiment, a system for treating rainwater includes: the system comprises a rainwater vertical pipe 1, a buffer device and a diversion well 4; the rainwater drainage system is used for draining rainwater on the top floor of a target building 8 and initial rainwater on the ground when the rainwater is separated from each other in the early stage of rainfall, specifically, a water inlet pipe orifice of the rainwater vertical pipe 1 is communicated with the top floor of the target building 8 so as to collect rainwater collected on the top floor of the target building 8, and a water outlet pipe orifice of the rainwater vertical pipe 1 is communicated with the buffer device so as to guide the rainwater to the buffer device; the buffer device comprises a storage structure 2 and a water outlet structure, wherein the storage structure 2 is used for buffering rainwater, and the water outlet structure is used for discharging the rainwater; the diversion well 4 is communicated with a rainwater inlet 5 preset on the ground, and the diversion well 4 is respectively communicated with a first downstream pipeline 6 and a second downstream pipeline 7 and is used for diverting rainwater flowing in from the rainwater inlet 5 to the first downstream pipeline 6 or the second downstream pipeline 7.
Based on the embodiment, the rainwater on the top surface of the target building is collected through the rainwater vertical pipe 1 and the buffer device, and the collected rainwater is guided to the diversion well 4 through the water outlet structure to be shunted and discharged; in specific implementation, a water inlet pipe orifice of the rainwater vertical pipe 1 is communicated with the top surface of the target building 8 to collect rainwater collected by the top surface of the target building 8, and a water outlet pipe orifice of the rainwater vertical pipe 1 is communicated with the buffer device, so that the rainwater collected by the rainwater vertical pipe 1 is guided to the storage device of the buffer device to be stored, and at the moment, the rainwater on the ground can be guided to the diversion well 4 through the rainwater port 5 preset on the ground and is diverted to the first downstream pipeline 6 by the diversion well 4 to be discharged; when rainwater stored in the buffer device needs to be discharged, rainwater in the device is guided to the ground through a water outlet structure arranged on the buffer device, is guided to a diversion well 4 together with rainwater on the ground through a rainwater inlet 5 preset on the ground, and is diverted to a second downstream pipeline 7 through the diversion well 4 to be discharged; it can be understood that, first aspect is through setting up rainwater riser 1 and buffer, collect the storage to the initial rainwater of the top floor of target building 8, and the initial rainwater on ground flows into to reposition of redundant personnel well 4 through subaerial predetermined delivery port, and flow into first downstream pipeline 6 through reposition of redundant personnel well 4, second aspect is through setting up out the water structure with the rainwater of storage structure 2 internal storage and the later stage rainwater on ground converge, and drainage to reposition of redundant personnel well 4 in through predetermineeing subaerial inlet for stom water 5, and shunt to second downstream pipeline 7 through reposition of redundant personnel well 4, so as to realize separately discharging the rainwater on roof and the initial rainwater on ground, reach the technical purpose of the reposition of redundant personnel of untimely discharge, in order to solve old district because of the limited road surface ponding's that leads to of underground pipe network hydrophobic ability technical problem.
Specifically, as for the water outlet structure, as an implementation manner of the water outlet structure, it may be a siphon pipe 3 as shown in fig. 1, and a water inlet end of the siphon pipe 3 is disposed in the storage structure 2, and a water outlet end of the siphon pipe 3 is disposed outside the storage structure 2, when a level of rainwater collected by the storage structure 2 and flowing in from the rainwater stand pipe 1 reaches a siphon level, rainwater in the storage structure 2 flows in from the water inlet end of the siphon pipe 3 and is guided to the ground through the water outlet end thereof, so as to implement a water outlet process of rainwater stored in the storage structure 2 through the water outlet structure; it should be noted that, in the embodiment of the present application, a manner of implementing water outlet by using a siphon principle through the siphon 3 is already the prior art, and therefore, this embodiment will not be described in detail.
As another implementation manner of the water outlet structure, the water outlet structure can also be a water outlet hole, and the water outlet hole is formed at the bottom of the buffer device; it can be understood that in the implementation manner of the water outlet structure, relatively clean rainwater on the top surface of the target building 8 flows into the storage structure 2 of the buffer device through the rainwater stand pipe 1, and then the rainwater in the storage structure is directly guided to the ground by the water outlet hole to naturally leak or be used for irrigating vegetation near the storage structure; it should be noted that the aperture of the water outlet is far smaller than the diameter of the rainwater vertical pipe, that is to say: the water inlet flow of the rainwater vertical pipe is far greater than the water outlet flow of the water outlet hole; therefore, in the process of draining water into the storage structure by the rainwater vertical pipe, a small amount of rainwater can be discharged from the water outlet hole at the bottom of the storage structure, and the water level in the storage structure can still continuously increase along with the increase of time until the water level reaches a preset water level, so that the understanding can be realized that when the storage structure collects and stores rainwater on the top floor of a target building, the water outlet hole can continuously guide the rainwater in the storage structure to the outside of the storage structure, so that the time for the storage structure to collect the rainwater to the preset water level is increased, further, in order to avoid continuous water outlet of the water outlet hole when the storage device collects the rainwater, the time for the storage structure to collect the rainwater to the preset water level is slowed down, an on-off switch is arranged on the water outlet hole to control the conduction of the water outlet hole; it can be understood that in the implementation of this kind of water structure, when needs are gone out water by the apopore, through the circulation of this on-off switch control this apopore, when need not be by the apopore play water, close through this on-off switch control this apopore.
Further, as for the water outlet structure, the water outlet structure may further include another water outlet structure formed by combining the siphon pipe 3 and the water outlet hole, and the implementation manner of the water outlet structure includes: a siphon pipe 3 is arranged on the storage structure 2, the water inlet end of the siphon pipe 3 is arranged in the storage structure 2, the water outlet end of the siphon pipe 3 is arranged outside the storage structure, and when the water level of rainwater in the storage structure 2 reaches the siphon water level, the rainwater in the storage structure 2 enters from the water inlet end of the siphon pipe 3 and is guided to the ground through the water outlet end of the siphon pipe; when the water level of rainwater in the storage structure does not reach the siphon water level and the rainwater in the storage structure needs to be emptied, the rainwater in the storage structure is discharged through the gravity of the rainwater by forming the water outlet hole at the bottom of the storage structure 2; when the rainwater on the top floor of the target building needs to be discharged in time staggered manner with the initial rain on the ground, the rainwater on the top floor of the target building needs to be temporarily collected and stored through the storage structure in the early stage of rainfall, then when the rainwater reaches the middle and later stages of rainfall, the rainwater in the storage structure is discharged to the ground and mixed with the initial rain on the ground and discharged, and finally the purpose of discharging the rainwater on the top floor of the target building in time staggered manner with the initial rain on the ground is achieved, however, if the rainfall in the early stage of rainfall is large, the water level in the storage structure is stored to the siphon water level when the rainwater does not transit to the middle and later stages of rainfall, so that the rainwater on the top floor of the target building flows into the ground in advance to be mixed with the initial rainwater on the ground, the preset time for shunting in time staggered manner is disturbed, the water flow is increased in the water amount of the rainwater on the ground, and the pressure of an underground drainage system is increased, based on this, this embodiment utilizes the apopore that sets up in the bottom of storage device to solve above-mentioned problem, and it should be noted that, the aperture of apopore is far less than the rainwater riser diameter, promptly: the water inlet flow of the rainwater vertical pipe is far greater than the water outlet flow of the water outlet hole; therefore, when the rainwater vertical pipe conducts drainage into the storage structure, the water outlet hole at the bottom of the storage structure can discharge a small amount of rainwater, as time increases, the water level in the storage structure will continue to increase until a predetermined water level is reached, but in the water level increasing process of the storage structure, the rainwater can continuously flow out from the water outlet, so that the rising time of the water level in the storage structure can be reduced, and as can be understood, when the storage structure collects and stores the rainwater on the top surface of the target building, the water outlet hole can continuously guide the rainwater in the storage structure to the outside of the storage structure, and the water outlet flow of the water outlet hole is far smaller than the water inlet flow of the rainwater vertical pipe, therefore, the time for the water level in the storage structure to rise to the siphon water level is only slowed down, so that the problem that the water level in the storage device flows into the ground too early due to overlarge rainfall in the early stage of rainfall is solved; further, when the rain volume becomes less, if the rainwater in the storage structure still flows out from the apopore, can cause the water level in the storage structure can't reach the siphon water level at predetermined time point, this embodiment one provides the implementation mode that sets up an on-off switch on the apopore, can control switching on and closing of apopore at any time through this on-off switch.
It can be known that, in the first embodiment, in the early stage of rainfall, the rainwater flowing down from the top floor of the target building 8 is collected and buffered, and simultaneously, the initial rainwater on the ground is guided to the first downstream pipeline 6 through the diversion well 4 and discharged, and in the middle and later stages of rainfall, the rainwater buffered in the storage structure is guided to the ground through the water outlet structure, mixed with the rainwater in the middle and later stages of the ground, and discharged to the diversion well and diverted to the second downstream pipeline through the diversion well, so as to achieve the technical purpose of time-staggered diversion; it will be appreciated that the first downstream conduit 6 may be a sewer pipe for draining relatively turbid initial rainwater on the ground through the sewer pipe to a sewage treatment terminal for treatment at the early stage of rainfall; and for the second downstream pipeline 7, it may be a rainwater pipe, for in the middle and later period of rainfall, after mixing the relatively clean rainwater of the top surface of the target building 8 collected by the storage structure with the rainwater that the ground becomes clear, discharging to the rainwater pipe, and then discharging to a rainwater treatment terminal or discharging to a natural ecosystem.
Further, for the design form of the house with the dense old residential areas or urban villages and the relatively poor underground drainage capacity relative to the urban system, in the middle and later periods of rainfall, the treatment capacity of the underground water treatment system of the old residential areas or urban villages is saturated, rainwater overflows to the ground from the underground, and further the technical problem of large-area water accumulation on the road surface is caused, in order to solve the technical problem of large-area water accumulation on the road surface, the embodiment provides a technical scheme, as shown in fig. 3, the scheme specifically includes: set up one and the regulation pond 9 that divides the well 4 intercommunication for to flowing into rainwater in the branch well 4 is regulated when needs are regulated, and to the realization mode that regulation pond 9 realized the regulation function, it can be: when rainfall entering middle and later periods, part of rainwater is shunted to the regulating and storing pool 9 through the shunt well 4 for temporary storage, when the rainfall enters the later periods or stops, the rainwater in the regulating and storing pool 9 is led into the second downstream pipeline 7 through the shunt well 4 again, and then enters the rainwater treatment terminal or is discharged to a natural ecological system, so that the technical problem of surface water accumulation of old districts or urban villages is solved.
As for the storage structure in the first embodiment, it may be a container having any accommodating space and capable of being used for containing water, such as a buffer tank, a bucket, a water tank, a water bottle, and the like. When the storage structure 2 is a movable container such as a bucket, a water bottle, a kettle, etc., the bucket can be moved to a place where water is needed, such as a rainwater garden, a shallow grass planting ditch, etc., where vegetation in the environment needs to be irrigated, so as to achieve the purpose of recycling the received rainwater in the bucket.
Example two:
an embodiment of the present specification provides a method for treating rainwater, including: in the early stage of rainfall, rainwater on the top floor of a target building 8 is drained and collected to a buffer device for buffering, and initial rainwater on the ground is discharged to a diversion well 4 from a rainwater inlet 5 preset on the ground and is diverted to a first downstream pipeline 6 from the diversion well 4; and in the middle and later periods of rainfall, discharging the rainwater collected by the buffer device to the ground, collecting the rainwater with the rain in the middle and later periods on the ground, discharging the rainwater to a diversion well 4 through a rainwater port 5 preset on the ground, and diverting the rainwater to a second downstream pipeline 7 through the diversion well 4.
In the technical scheme of the second embodiment, the rainwater in the early stage of rainfall and in the middle and later stages of rainfall is separately treated, so that the technical purpose of staggered discharge of the early rainwater on the relatively clean top layer of the building and the early rainwater on the relatively dirty ground is achieved; during the implementation method, in the early stage of rainfall, firstly, relatively clean rainwater on the top layer surface of a target building 8 is drained and collected into a buffer device for storage, then, relatively dirty early rainwater on the ground is drained to a diversion well 4 from a rainwater port 5 preset on the ground, and then is diverted to a first downstream pipeline 6 through the diversion well 4, so that the relatively dirty early rainwater on the ground is firstly drained to the first downstream pipeline 6; in the middle and later periods of rainfall, when the rainwater on the ground becomes clear relative to the initial rainwater, the rainwater on the fixed layer of the building collected by the buffer device is discharged to the ground and mixed with the rainwater on the middle and later periods of the ground, and is discharged to the diversion well 4 together from the rainwater inlet 5 preset on the ground, and then is discharged to the second downstream pipeline 7 through the diversion well 4; it can be understood that, at the rainfall initial stage, collect the storage to the rainwater of the top floor of target building 8, and the initial rainwater on ground flows into to reposition of redundant personnel well 4 through the delivery port that subaerial predetermines, and flow into first downstream pipe way 6 through reposition of redundant personnel well 4, in the rainfall middle and later stages, converge the rainwater in the buffer and the middle and later stage rainwater on ground, and drainage to reposition of redundant personnel well 4 through predetermineeing subaerial inlet for stom water 5, and then shunt to second downstream pipe way 7 through reposition of redundant personnel well 4, so that realize separately discharging the rainwater on roof and the initial rainwater on ground, reach the technical purpose of wrong time emission reposition of redundant personnel, with the technical problem of the road surface ponding that leads to because of underground pipe network drainage ability is limited in the old district of solution.
Specifically, for the method of collecting the rainwater drainage on the top floor of the target building 8 to the buffer device for buffering, it may communicate with the top floor of the target building 8 through a rainwater riser 1, so that the initial rainwater on the top floor of the target building 8 is collected into the storage structure 2 through the rainwater riser 1 for storage, which may be implemented as follows: in the early stage of rainfall, comparatively clean rainwater on the top deck of target building 8 is drained to storage structure 2 through rainwater riser 1 and temporarily stored, and then distinguishes technical effect with the dirty early stage rainwater on ground.
Another implementation method for collecting rainwater drainage on the top floor of the target building 8 to the buffer device for buffering can be realized by communicating the storage structure 2 through a siphon 3, so that a water inlet end of the siphon 3 is arranged in the storage structure 2, and a water outlet end of the siphon 3 is arranged outside the storage structure 2, when the rainwater level collected by the storage structure 2 and flowing in from the rainwater stand pipe 1 reaches a siphon water level, rainwater in the storage structure 2 flows in from the water inlet end of the siphon 3 and is guided to the ground through the water outlet end thereof, so that a rainwater outlet process of the rainwater stored in the storage structure 2 is realized through the water outlet structure; it should be noted that, in the embodiment of the present application, a manner of implementing water outlet by using a siphon principle through the siphon 3 is already the prior art, and therefore, this embodiment will not be described in detail.
For another implementation method for draining and collecting rainwater on the top floor of the target building 8 to the buffer device for buffering, a water outlet hole is formed in the bottom of the storage structure 2, so that initial rainwater flowing into the storage structure 2 from the rainwater stand pipe 1 flows to the ground under the action of gravity of the initial rainwater, and it can be understood that in the implementation manner of the water outlet structure, relatively clean rainwater on the top floor of the target building 8 flows into the storage structure 2 of the buffer device through the rainwater stand pipe 1, and then the rainwater in the storage structure is directly guided to the ground by the water outlet hole for natural leakage or for irrigating vegetation near the storage structure; it should be noted that the aperture of the water outlet is far smaller than the diameter of the rainwater vertical pipe, that is to say: the water inlet flow of the rainwater vertical pipe is far greater than the water outlet flow of the water outlet hole; therefore, in the process of draining water into the storage structure by the rainwater vertical pipe, a small amount of rainwater can be discharged from the water outlet hole at the bottom of the storage structure, and the water level in the storage structure can still continuously increase along with the increase of time until the water level reaches a preset water level, so that the understanding can be realized that when the storage structure collects and stores rainwater on the top floor of a target building, the water outlet hole can continuously guide the rainwater in the storage structure to the outside of the storage structure, so that the time for the storage structure to collect the rainwater to the preset water level is increased, further, in order to avoid continuous water outlet of the water outlet hole when the storage device collects the rainwater, the time for the storage structure to collect the rainwater to the preset water level is slowed down, an on-off switch is arranged on the water outlet hole to control the conduction of the water outlet hole; it can be understood that in the implementation of this kind of water structure, when needs are gone out water by the apopore, through the circulation of this on-off switch control this apopore, when need not be by the apopore play water, close through this on-off switch control this apopore. .
Further, for the design form of the house with the dense old community or urban village and the poorer underground drainage capability relative to the urban system, in the middle and later periods of rainfall, the underground water treatment capability of the old community or the urban village is saturated, rainwater overflows from the underground to the ground, and the saturated underground water quantity needs to be temporarily stored or transferred, so as to solve the problems, the scheme provides a technical scheme to solve the technical problem, and the scheme specifically comprises the following steps: set up one and the regulation pond 9 that divides the well 4 intercommunication for to flowing into rainwater in the branch well 4 is carried out the regulation when needs are regulated, and to the implementation of regulation pond 9, it can be: when rainfall enters the middle and later periods, part of rainwater is firstly shunted into the regulating and storing pool 9 through the shunt well 4 for temporary storage, and when the rainfall enters the later periods or stops, the rainwater in the regulating and storing pool 9 is led into the second downstream pipeline 7 through the shunt well 4 again, enters the rainwater treatment terminal or is discharged to a natural ecological system, so that the pressure of surface accumulated water in old districts or urban villages is relieved.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (11)
1. A system for treating stormwater, the system comprising:
the device comprises a rainwater vertical pipe, a buffer device and a diversion well;
the water inlet pipe orifice of the rainwater vertical pipe is communicated with the top floor surface of a target building so as to collect rainwater collected by the top floor surface of the target building, and the water outlet pipe orifice of the rainwater vertical pipe is communicated with the buffer device so as to guide the rainwater to the buffer device; the buffer device comprises a storage structure and a water outlet structure, the storage structure is used for caching rainwater, and the water outlet structure is used for discharging the rainwater; the diversion well is communicated with a rainwater port preset on the ground, is respectively communicated with a first downstream pipeline and a second downstream pipeline and is used for diverting rainwater flowing in from the rainwater port to the first downstream pipeline or the second downstream pipeline.
2. A system for treating stormwater as claimed in claim 1, wherein the water outlet structure comprises:
the siphon, the end setting of intaking of siphon is in store the structure, the play water end setting of siphon is in store the structure outside.
3. A system for treating stormwater as claimed in claim 1 or 2, wherein the water outlet structure comprises:
the water outlet is formed in the bottom of the storage structure.
4. A system for treating stormwater as claimed in claim 3, wherein the effluent structure further comprises:
and the on-off switch is arranged on the water outlet hole and used for controlling the circulation of the water outlet hole when the water outlet hole is required to discharge water.
5. A system for treating stormwater as claimed in claim 1 or 2, wherein the system comprises:
and the storage adjusting tank is communicated with the shunt well and used for adjusting and storing rainwater flowing into the shunt well when the rainwater needs to be adjusted and stored.
6. A method of treating stormwater, the method comprising:
in the early stage of rainfall, rainwater on the top surface of a target building is drained and collected to a buffer device for buffering, and initial rainwater on the ground is discharged to a diversion well from a rainwater inlet preset on the ground and is diverted to a first downstream pipeline by the diversion well;
and in the middle and later periods of rainfall, the rainwater collected by the buffer device is discharged to the ground, is collected with the rain in the middle and later periods on the ground, is discharged to the diversion well through a rainwater port preset on the ground, and is diverted to a second downstream pipeline through the diversion well.
7. The method for treating rainwater according to claim 6, wherein said concentrating rainwater drainage on the top floor of the target building to a buffer device for buffering further comprises:
and the rainwater vertical pipe is communicated through a storage structure, so that rainwater flowing out of the rainwater vertical pipe flows to the storage structure for storage.
8. A method of treating stormwater as claimed in claim 6, wherein said draining of stormwater collected by said buffering means to the ground comprises:
the storage structure is communicated through a siphon, so that the water inlet end of the siphon is arranged in the storage structure, and rainwater at the water outlet end of the siphon is drained to the ground in an initial rain mode.
9. A method of treating stormwater as claimed in claim 6, wherein said draining stormwater collected by said buffering means to the ground further comprises:
and a water outlet hole is formed in the bottom of the storage structure, so that the initial rain flowing into the storage structure from the rainwater vertical pipe flows to the ground under the action of the gravity of the initial rain.
10. A method of treating stormwater as claimed in claim 6, wherein said draining stormwater collected by said buffering means to the ground further comprises:
and the water outlet hole is provided with an on-off switch, so that the circulation of the water outlet hole is controlled when water is required to be discharged from the water outlet hole.
11. A method for treating rainwater according to claim 6, wherein said discharging rainwater collected by said buffering means to the ground, after collecting the rainwater at the middle and later periods on the ground and discharging the rainwater to the diversion well through a rainwater outlet preset on the ground further comprises:
through a regulation pond with the reposition of redundant personnel well is connected to carry out the regulation when needs the regulation to the rainwater that flows into in the reposition of redundant personnel well.
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Cited By (1)
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| CN114592563A (en) * | 2022-03-22 | 2022-06-07 | 中国城市建设研究院有限公司 | Unpowered rainwater drainage system and method for roof in low-lying area |
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Application publication date: 20211001 |