CN109881557B - Drainage system and drainage method thereof - Google Patents
Drainage system and drainage method thereof Download PDFInfo
- Publication number
- CN109881557B CN109881557B CN201910297351.6A CN201910297351A CN109881557B CN 109881557 B CN109881557 B CN 109881557B CN 201910297351 A CN201910297351 A CN 201910297351A CN 109881557 B CN109881557 B CN 109881557B
- Authority
- CN
- China
- Prior art keywords
- water
- drainage
- drainage channel
- water storage
- road
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A10/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE at coastal zones; at river basins
- Y02A10/30—Flood prevention; Flood or storm water management, e.g. using flood barriers
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A20/00—Water conservation; Efficient water supply; Efficient water use
- Y02A20/108—Rainwater harvesting
Landscapes
- Filtration Of Liquid (AREA)
- Sewage (AREA)
Abstract
本申请涉及道路排水领域，具体涉及一种排水系统及其排水方法，其包括：按照第一方向依次排列的第二排水流道、第一排水流道和蓄水部，第二排水流道与道路邻接，第一排水流道的进水口与道路积水的流路连通；第一排水流道与第二排水流道通过间隔部间隔并通过间隔部顶部的溢流口连通，第一排水流道较之第二排水流道的流通截面面积小，第一方向为在水平面上与道路延伸方向垂直的方向；蓄水部在道路延伸的方向上间隔设置，第一排水流道上设有与蓄水部对应的过滤段，过滤段靠近蓄水部的边侧设置过滤装置，蓄水部包括沿第二方向依次设置的过滤层和储水层；过滤装置的过滤部与过滤层在第二方向上的部分或全部侧面贴合；第二方向为与道路深度平行的方向。
The present application relates to the field of road drainage, and specifically to a drainage system and a drainage method thereof, which comprises: a second drainage channel, a first drainage channel and a water storage part arranged in sequence according to a first direction, the second drainage channel being adjacent to the road, the water inlet of the first drainage channel being connected to the flow path of water accumulated on the road; the first drainage channel and the second drainage channel being separated by a spacer and connected through an overflow port at the top of the spacer, the flow cross-sectional area of the first drainage channel being smaller than that of the second drainage channel, the first direction being a direction perpendicular to the extension direction of the road on a horizontal plane; the water storage part being arranged at intervals in the direction in which the road extends, a filter section corresponding to the water storage part being provided on the first drainage channel, a filter device being arranged on the side of the filter section close to the water storage part, the water storage part comprising a filter layer and a water storage layer arranged in sequence along the second direction; the filter part of the filter device being in contact with part or all of the side surfaces of the filter layer in the second direction; the second direction being a direction parallel to the depth of the road.
Description
Technical Field
The application relates to the field of road drainage, in particular to a drainage system and a drainage method thereof.
Background
Road drainage generally gathers ponding on the road surface to the escape canal, flows into the sewage well, the sewage supply end through the escape canal, finally discharges to nearby water bodies such as rivers, lakes, seas, and the like. The existing road surface ponding is generally rainwater, the degree of pollution of the rainwater is small, the treatment is convenient, and the direct drainage is waste of water resources. At present, the pavement of a road is often set as a permeable pavement, accumulated water on the pavement is permeated into the underground for accumulation or introduced into a water pool for storage, the problem that drainage is not timely due to slow seepage speed sometimes exists in the mode of permeating the accumulated water into the underground, if the accumulated water on the pavement is directly introduced into the water pool for storage, impurities and muddy sand carried in water flow can be deposited in the water pool, the filtering effect is poor, the efficiency is low, and water storage is inconvenient to use.
Disclosure of Invention
The application aims to provide a drainage system and a drainage method thereof, which are used for solving the problem that the drainage rate of a pavement and filtering storage cannot be well combined.
In a first aspect, in one embodiment of the present application, there is provided a drainage system comprising:
The first drainage flow passage, the second drainage flow passage and the water storage part;
The first drainage flow passage and the second drainage flow passage are separated by a separation part and are communicated through an overflow port at the top of the separation part, and the first direction is a direction vertical to the extending direction of the road on a horizontal plane;
The water storage parts are arranged at intervals in the direction of road extension, the first drainage flow channel is provided with a filtering section corresponding to the water storage parts, the side of the filtering section, which is close to the water storage parts, is provided with a filtering device, the water storage parts comprise a filtering layer and a water storage layer which are sequentially arranged along a second direction, the filtering part of the filtering device is attached to part or all of the side surfaces of the filtering layer in the second direction, and the second direction is parallel to the depth of the road.
The drainage channel formed by the first drainage channel and the second drainage channel has a first working state and a second working state. The first working state takes filtration as a main part and drainage as an auxiliary part, the water level in the first drainage flow channel is lower than the overflow port, water flows only in the first drainage flow channel, and when flowing through the filtration part, water flows from the filtration part into the filtration layer of the water storage part, and enters the water storage layer for storage after being filtered by the filtration layer. The second working state takes drainage as main and filtering as auxiliary, when the water level of the first drainage flow channel exceeds the overflow port, the first drainage flow channel still keeps the functions of drainage and filtering, but the water exceeding the overflow port in the first drainage flow channel flows to the second drainage flow channel through the overflow port, so that the second drainage flow channel is used for assisting in draining redundant water flow, and the redundant water flow refers to the water flow which is not filtered and stored in the first drainage flow channel and is not drained.
Through the arrangement, the drainage system can achieve both a faster pavement drainage rate and a better filtering effect. The first drainage flow passage is mainly used for filtering, and the second drainage flow passage is mainly used for auxiliary drainage.
The first drainage runner can be regarded as the temporary storage cavity of rivers, and road surface rivers can get into first drainage runner from the water inlet fast, alleviate the problem that leads to road surface ponding because ooze untimely down, simultaneously, the rivers can get into the filter layer from first drainage runner and filter and finally store at the aqua storage layer, get into the silt particle volume in the aqua storage layer and can reduce, and the rivers that have not come to filter can flow to the low reaches, prevent that road surface flowing water from locally depositing the floods. Compared with the drainage channel with only one unified flow channel in the prior art, the first drainage flow channel is independently arranged, so that the flow area is reduced, the water level of the first drainage flow channel is higher, the area of the water flow covering the filtering part is increased, the filtering efficiency is improved, and a better water storage effect is achieved. The application can not only meet better filtering effect, but also improve the drainage rate of the road surface and reduce the accumulated water caused by untimely seepage of the road surface.
In one embodiment of the application, further, the first drain flow passage has a smaller flow cross-sectional area than the second drain flow passage. Through setting up the ratio of the flow cross sectional area of first drainage runner and second drainage runner to, when the water yield is less needs increase filtration area, first drainage runner can keep higher water level, further does benefit to the filtration, and when the water yield is great needs accelerate the drainage, second drainage runner can greatly increased drainage ability, in order to take into account drainage and filtration work under two kinds of states.
In one embodiment of the application, a sand setting section is further arranged at the upstream of each filtering section of the first drainage flow passage, the sand setting section is arc-shaped in the extending direction of the road and comprises a concave side and a convex side which are opposite, the side wall of the concave side is concave towards the outside of the first drainage flow passage, the side wall of the convex side is convex towards the inside of the first drainage flow passage, a concave deposition part is arranged at the bottom of the first drainage flow passage, and the deposition part is close to the convex side.
In the implementation process, particle impurities such as muddy sand mixed in the water flow in the first drainage flow channel can enter the filter layer and remain in the filter layer, the filtering speed of the filter layer is possibly reduced for a long time, even the filter part is blocked, the recycling water flow is influenced, in order to improve the durability of the filter layer, the maintenance frequency and the maintenance cost are reduced, the problem of drainage rate and the filtering efficiency is further considered, the sand setting section is arranged at the upstream of the filter section along the water flow direction of the drainage channel, when the water flow is mixed with impurities to flow in the drainage channel, the particles with the density larger than water in the water flow are deposited in the sand setting section, the problem that the filter part and the filter layer are blocked by the impurities is relieved, and the drainage channel can be conveniently cleaned. Through setting up first drainage runner to the arc structure that has concave side and protruding side in sand setting section department, when rivers pass through sand setting section, under the combined action of rivers centrifugal force and concave side, the lateral pressure that protruding side provided, rivers form the lateral current in sand setting section easily, and the lateral current carries the particulate matter that the density is greater than water such as mud sand that smuggles entrained in the rivers to protruding side from concave side to deposit in the deposit portion that is close to protruding side, thereby reduce the big density particulate matter that smuggles entrained in the rivers. Through setting up curved sand setting section to set up the deposit portion, under the circumstances that does not influence drainage efficiency, make the big density particulate matter that smugglies secretly in the rivers deposit, further compromise drainage efficiency and filtration deposit water, and the structure of sand setting section need not to increase other trapping devices or power device in first drainage runner separately, and green energy-conservation, and need not to consider the problem of device change or maintenance.
In one embodiment of the present application, further, the bottom of the first drainage channel protrudes upwards to form a blocking portion, the blocking portion is arranged around the edge of the deposition portion, and an opening is arranged towards the upstream of the blocking portion. Through setting up the blocking part in first drainage runner bottom, utilize blocking part to surround the depositional part, further block high-density particulate matter, prevent that high-density particulate matter from turning over from the depositional part and flowing away under the rivers effect to set up the opening towards the upper reaches at blocking part, reduce blocking part's hindrance to rivers, still be convenient for some high-density particulate matter directly get into the depositional part deposit. Under the condition of smaller obstruction to water flow, the capability of the sand setting section for settling large-density particulate matters is improved, and the drainage efficiency and the filtering water storage are further considered.
In one embodiment of the application, the roadway further comprises a water permeable pavement and a water permeable substrate, and the second drainage channel is adjacent to the water permeable substrate. Through the base course that permeates water with the road adjoins the second drainage runner, ponding of road can be partly ooze the accumulation in the soil body down at least, and when the accumulation volume of soil body was limited, can also permeate the second drainage runner from the base course that permeates water of upper portion and drain away, makes the soil body have the condition that can accept the infiltration rivers down all the time, plays the effect of supplementary improvement drainage efficiency.
In one embodiment of the application, further, the bottom of the first drain flow channel is inclined towards the filter section at least at the filter section. Through setting up the bottom of first drainage runner in filter section department for with predetermineeing the direction slope, make rivers get into filter unit more easily when flowing through the filter section, improve filtration efficiency, reduce the volume of getting up to the filter water stream.
In one embodiment of the application, further, the water storage layers of adjacent water storage portions are in communication. When the water storage capacity of one water storage part is saturated, the water storage can flow to other places so as to relieve the problem of excessive local water quantity and flooding.
In one embodiment of the present application, further, the drainage system further includes a water pipe, a water inlet end of the water pipe is located at the water storage layer, a drainage pipe is connected to a water outlet end of the water pipe, the drainage pipe is connected to the water supply pipe, one end of the drainage pipe is connected to a water supply end of the water supply pipe, and the other end of the drainage pipe is connected to a water using end of the water supply pipe;
The drainage tube is equipped with venturi runner, and venturi runner includes along water supply end to the convergent portion that links to each other in proper order with the water end, mixed portion and divergent portion, and the flow area of convergent portion reduces along the direction from water supply end to water end, and the flow area of divergent portion increases along the direction from water supply end to water end, and the play water end of raceway is connected in mixed portion.
The water in the water storage layer is mainly filtered pavement rainwater, and the water can be directly used in some scenes with low requirements, such as greening irrigation, landscape running water and the like. The application is characterized in that a drainage tube with a venturi flow passage is arranged, the drainage tube is connected between the water supply end and the water use end of a water supply pipeline for daily water, and the water outlet end of a water pipe is arranged at the mixing part of the venturi flow passage. When water is used, daily water flows from a water supply end to a water use end in a water supply pipeline, when the water flow of the daily water quickly passes through the drainage tube, the tapered part of the venturi flow channel can generate entrainment effect, the area generates negative pressure, the negative pressure is transferred to the mixing part, and the stored water in the water storage layer enters the mixing part from the water outlet end of the water pipe under the action of pressure difference, and flows out through the gradual expansion part after being mixed with the daily water.
Through setting up the drainage tube of UNICOM raceway and water supply pipe, just can make the deposit water of reservoir naturally flow when using daily water, need not to use power equipment to take out to deposit water use, can enough facilitate the use to deposit water, can save power equipment energy consumption again, can also make the reservoir keep sustainable state of depositing water, make reservoir and filter layer be in usable state often, but not be in to the critical point that drainage channel is countercurrent, when improving the use convenience, further compromise drainage rate and filtration capacity.
In one embodiment of the present application, further, a filter head is connected to the water inlet end of the water pipe, and the filter head is used for preventing particulate impurities from entering the water pipe. Through connecting the filter head at the water inlet end of raceway, further prevent to deposit remaining granule impurity in the water and get into the raceway or get into the water equipment of connecting the raceway, improve the durability of raceway and other water equipment, reduce the raceway jam or other trouble that lead to because the granule impurity, further be convenient for use deposit water.
In a second aspect, in one embodiment of the present application, there is provided a drainage method based on the above drainage system, including:
A first drainage flow passage, a second drainage flow passage and a water storage part are arranged on at least one side of the road;
the accumulated water on the road flows into the first drainage flow channel, enters the water storage part after being filtered by the filtering section of the first drainage flow channel, and is stored in the water storage layer after passing through the filtering layer of the water storage part;
when the accumulated water on the road is excessive, the accumulated water flows into the first drainage flow channel, after the first drainage flow channel is filled, the accumulated water overflowed through the first drainage flow channel enters the second drainage flow channel through the overflow port, and the excessive accumulated water is discharged by the second drainage flow channel.
The water drainage method comprises a first working state mainly comprising filtration and a second working state mainly comprising drainage, wherein in the first working state, water enters the water storage part for filtration and storage when flowing through the filtration section in the first water drainage flow channel, the first water drainage flow channel enters the second working state when being full, the first water drainage flow channel still keeps drainage and filtration, and water exceeding the overflow port enters the second water drainage flow channel for drainage, so that the drainage rate and the filtration effect are both considered.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a plan view of a drainage system according to an embodiment of the present application;
FIG. 2 is an enlarged view of portion I of FIG. 1;
FIG. 3 is a schematic structural view of a sand setting section of the first drainage channel;
FIG. 4 is a section III-III of FIG. 3;
FIG. 5 is a schematic view of a section of a drainage system according to an embodiment of the present application from above the road surface;
FIG. 6 is a V-V section of FIG. 5;
fig. 7 is a VI-VI cross-sectional view of fig. 6.
The icons are 100-road, 200-water storage part, 210-filter layer, 211-filter device, 220-water storage layer, 221-supporting structure, 310-first drainage channel, 311-connecting section, 312-filter section, 313-sand setting section, 3131-concave side, 3132-convex side, 3133-blocking part, 3134-depositing part, 320-second drainage channel, 330-spacer part, 331-overflow port, 400-communication channel, 500-water pipe, 510-filter head, 600-drainage tube and 700-cover plate.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
It should be noted that in the description of the present application, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate an azimuth or a positional relationship based on that shown in the drawings, or an azimuth or a positional relationship in which a product of the application is conventionally put in use, it is merely for convenience of describing the present application and simplifying the description, and it is not indicated or implied that the referred device or element must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," and the like in the description of the present application, if any, are used for distinguishing between the descriptions and not necessarily for indicating or implying a relative importance.
Furthermore, the terms "horizontal," "vertical," and the like in the description of the present application, if any, do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present application, it should also be noted that, unless explicitly stated or limited otherwise, the terms "disposed," "mounted," "connected," and "connected" should be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected, or may be directly connected, or may be indirectly connected through an intermediate medium, or may be in communication with the interior of two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.
In the description of the present application, the first direction means a direction perpendicular to the extending direction of the road in the horizontal plane, and the second direction means a depth direction parallel to the road, i.e., a vertically downward direction perpendicular to the road surface.
Example 1
The embodiment provides a drainage system for the road surface rivers of road 100 are discharged fast, reduce the road surface ponding, and store the rivers after gathering, filtering, make and deposit water convenient to use, road 100 drainage is efficient, filter effect is good, solves among the prior art, and the drainage rate and the filter effect on road surface can not take into account the problem.
Fig. 1 shows a plan view of the drainage system, fig. 2 is an enlarged view of a portion I of fig. 1 showing a schematic view of a structure of a filtering section 312, a sand setting section 313 and a water storage section 200 of a first drainage flow passage 310, fig. 3 is a schematic view of a structure of a sand setting section 313, fig. 4 is a sectional view of a section III-III of fig. 3 showing a section of a sand setting section 313 in a flow direction, fig. 5 is a plan view looking down from above a road surface of a road 100 showing a section of the drainage system including a water storage section 200, fig. 6 is a sectional view of a section V-V of fig. 5 showing a section V of the filtering section 312 of the drainage system in a vertical direction, and fig. 7 is a sectional view VI-VI of fig. 6 showing a section V of the filtering section 312 of the drainage system in a horizontal direction.
Referring to fig. 1 and 2, the drainage system includes a road 100, a second drainage channel 320, a first drainage channel 310, a water storage portion 200 and a water pipe 500, which are sequentially arranged in a first direction.
The second drainage flow path 320 and the first drainage flow path 310 are disposed in parallel with the road 100 and underground, and constitute a drainage channel for drainage, the second drainage flow path 320 adjoins the road 100, and the first drainage flow path 310 adjoins the water reservoir 200.
The second drainage flow channel 320 and the first drainage flow channel 310 may be drainage ditches, as shown in fig. 1, a cover plate 700 which is flush with the road surface of the road 100 or slightly lower than the road surface of the road 100 is arranged at the upper part of the second drainage flow channel 320 and the first drainage flow channel 310, and a water inlet is formed at the position of the cover plate 700 corresponding to the first drainage flow channel 310. Referring to fig. 2, 6 and 7, the first drain flow path 310 and the second drain flow path 320 are separated by a partition 330 to achieve the split flow. Further alternatively, the flow area of the first drain flow passage 310 is smaller than the flow area of the second drain flow passage 320.
The top of the partition 330 is provided with an overflow port 331, and the overflow port 331 is communicated with the first drainage channel 310 and the second drainage channel 320. As shown in fig. 6 and 7, the overflow port 331 is provided at the partition 330 near the road surface of the road 100.
Further, the first drainage channel 310 includes a filtering section 312 flowing through the water storage portion 200, and a filtering device 211 is disposed at the filtering section 312, and a filtering portion of the filtering device 211 is engaged with and communicates with the water storage portion 200. Optionally, the filtering device 211 disposed on the side wall of the filtering section 312 is a grille, and the filtering part is the grille water passing part.
Referring to fig. 5 and 6, the water storage portion 200 is disposed under the ground, the water storage portion 200 includes a filter layer 210 and a water storage layer 220, the filter layer 210 and the water storage layer 220 are arranged along a direction away from the ground, the filter layer 210 is relatively close to the ground, the water storage layer 220 is relatively far away from the ground, the filter layer 210 and the water storage layer 220 have an interface, and the interface is at the same level or further away from the ground than the bottom of the first drainage channel 310, that is, the filter portion is attached to a part of or all of the sides of the filter layer 210 in the second direction.
The number of the water storage portions 200 may be one or a plurality of water storage portions may be provided at intervals along the extending direction of the road 100. When the water storage part 200 is plural, the first drain flow passage 310 also has plural filter segments 312, respectively. The water storage layers 220 of adjacent water storage portions 200 are optionally provided with communication pipes 400 for connection, and when the water storage amount of the individual water storage portions 200 is saturated, the stored water can flow elsewhere, so that the problem that the water is not discharged easily due to excessive local water amount is solved.
In order to facilitate the output of water, the drainage system may further comprise a water pipe 500, wherein the water inlet end of the water pipe 500 extends into the water storage layer 220, and the water outlet end of the water pipe 500 is connected with water using equipment.
The principle of the drainage unit provided in this embodiment is as follows:
The pavement water flow enters the first drainage flow passage 310 through the water inlet, the first drainage flow passage 310 can serve as a temporary storage chamber of the water flow, a filtered and infiltrated site is transferred into the first drainage flow passage 310, the first drainage flow passage 310 is provided with a filtering part at the filtering section 312, when the pavement water flow passes through the filtering part, the pavement water flow enters the filtering layer 210 of the water storage part 200 from the filtering part, and enters the water storage layer 220 for storage after being filtered by the filtering layer 210, the filtering layer 210 intercepts particulate impurities such as muddy sand in the water flow, reduces the muddy sand amount entering the water storage layer 220, relieves the problem that the muddy sand is deposited on the water storage layer 220, and can output the stored water in the water storage layer 220 through the water pipe 500 when the pavement water storage device is needed to be used, so that the problem of pavement water accumulation caused by infiltration is relieved, and enough filtering time can be provided to improve the filtering effect.
The drainage channel formed by the first drainage channel 310 and the second drainage channel 320 has a first operation state mainly including filtration and a second operation state mainly including drainage.
In the first working state, the water quantity of the road surface water flow is smaller, and the water level in the first water discharge flow passage 310 is lower than the overflow port 331.
The water flow enters the first drainage flow channel 310 through the water inlet, the water flow only flows in the first drainage flow channel 310, the water flow enters the filter layer 210 through the filter part when flowing through the filter section 312 and finally stored in the water storage layer 220 after being filtered by the filter layer 210, and the water flow which does not reach the filter in the first drainage flow channel 310 can flow to the downstream, so that the condition that the water flow is accumulated at one place is relieved, the drainage rate on the road surface is further improved, and the drainage rate is considered under the condition that the filtering is mainly carried out. The flow area of the first drainage flow channel 310 is smaller, so that the first drainage flow channel 310 maintains a relatively high water level, the contact area between the water flow and the filtering portion is larger, the filtering area of the filtering portion is increased, the filtering efficiency is improved, and the water flow which does not reach the filtering position is not influenced to flow downstream. Therefore, the first working state improves the filtering efficiency under the condition of not influencing the drainage, so as to ensure the filtering to be mainly.
In the second operation state, when the water amount is large or the water storage portion 200 is saturated, the water level of the first drainage flow passage 310 exceeds the overflow port 331.
The water flow enters the first drainage flow channel 310 through the water inlet, the water flow exceeding the overflow port 331 enters the second drainage flow channel 320 through the overflow port 331 to be drained, the drainage load of the first drainage flow channel 310 is reduced, the water flow lower than the overflow port 331 still flows in the first drainage flow channel 310, enters the filter layer 210 through the filter part when flowing through the filter section 312, and finally is stored in the water storage layer 220 after being filtered by the filter layer 210, and the water flow which is not available for filtration can flow downstream. Therefore, the second working state is mainly based on drainage efficiency under the condition of large water quantity, and the filtering water storage is not influenced.
The two working states are adaptively adjusted and switched, so that the drainage unit provided by the embodiment is balanced between drainage efficiency and filtering water storage capacity, drainage rate and filtering water storage capacity are considered, more energy is not required to be consumed, and the drainage unit is environment-friendly, green and energy-saving.
In order to further facilitate the use of the water stored in the water storage layer 220, the water pipe 500 is optionally connected to a drainage pipe 600, and the drainage pipe 600 is disposed between the water supply pipes, one end of the drainage pipe is connected to the water supply end of the water supply pipe, and the other end of the drainage pipe is connected to the water use end of the water supply pipe.
As shown in fig. 1 and 2, the drainage tube 600 is provided with a venturi flow channel, the venturi flow channel comprises a converging portion, a mixing portion and a diverging portion, wherein the converging portion, the mixing portion and the diverging portion are sequentially connected from a water supply end to a water use end, the flow area of the converging portion is reduced from the water supply end to the water use end, the flow area of the diverging portion is increased from the water supply end to the water use end, and the water outlet end of the water pipe 500 is connected to the mixing portion.
When the water flow of the daily water rapidly passes through the drainage tube 600 from the water supply end to the water use end, the convergent part of the venturi flow channel can generate entrainment effect, and the area generates negative pressure, the negative pressure is transferred to the mixing part, so that the stored water in the water storage layer 220 enters the mixing part from the water outlet end of the water pipe 500 under the action of pressure difference, and the stored water and the daily water are mixed and then flow out through the divergent part.
The water stored in the water storage layer 220 in this embodiment is mainly the road surface rainwater of the road 100, which can be generally used in the fields of greening irrigation, landscape running water, road surface cleaning, etc. When daily water is used, the drainage tube 600 enables water stored in the water storage layer 220 to flow out through the water conveying pipe 500, power equipment is not required to be used for pumping out the water stored, power equipment energy consumption is saved, daily water consumption such as tap water can be reduced, water stored can be conveniently used, the water storage layer 220 can be kept in a sustainable water storage state, the water storage layer 220 and the filter layer 210 are in a usable state instead of a state of countercurrent to the first water drainage flow passage 310, and drainage rate and filtering capacity are further considered while convenience in use is improved.
When the total amount of water stored in the water storage layer 220 is insufficient, the drainage tube 600 is connected with the water supply pipeline in a setting manner, so that only daily water such as tap water can be used, and the limitation of additional use functions extending from the drainage system due to insufficient water stored is avoided.
Further, the water inlet end of the water pipe 500 is optionally provided with a filter head 510 to prevent particulate impurities from entering the water pipe 500. The filter head 510 may be a filter screen or an ultrafiltration membrane disposed at the inlet end of the water pipe 500, or may be other devices capable of filtering.
The surface layer of the water storage portion 200, that is, the upper portion of the filter layer 210, may be an idle space, a sidewalk, or a greening vegetation on both sides of the road 100, or may be a building or a structure. The contact surface of the lower reservoir 220 with the soil body is optionally provided with a low permeability layer, such as a concrete layer, an epoxy layer, etc. The size of the pores of the filter layer 210 is optionally set to gradually decrease along the direction from the ground to the water storage layer 220, so that the water permeability near the ground is high, the trafficability of the particles far away from the ground is low, and the filter layer 210 can quickly absorb water flow without affecting the filtering effect under the condition of small water quantity.
In order to better drain the top facing of the aquifer, the pavement may be laid with water permeable bricks or set as a water permeable concrete hardened pavement. To better meet the strength requirements of a building or structure for a foundation base, the reservoir 220 may be filled with a porous support structure 221. The support structure 221 may be any structure that can have high strength and durability under water.
In this embodiment, a supporting structure 221 for improving the strength of the water storage layer 220 is provided, please refer to fig. 2, the supporting structure 221 includes a plurality of PVC pipes, the pipes have channels along the axial direction, the plurality of PVC pipes are staggered to form a space net structure, i.e. the cross section of the net structure is net-shaped when being cut from any direction, each PVC pipe is communicated at a connection node, so that the channels of each pipe are communicated, and hardened high-strength impervious concrete is arranged in the channels, and the high-strength impervious concrete structure is to pour concrete mixture from the channels of any pipe and fill the space net structure. Under the constraints provided by PVC pipe, the high strength impervious concrete mix forms a concrete structure with higher strength within the space network. The concrete structure has the function of supporting the pipe wall after being molded so as to enhance the geometric stability of the pipe body and improve the bearing capacity of the pipe body, and the inner wall of the pipe body continuously provides lateral constraint for the molded concrete structure so as to relieve the condition that the concrete structure generates internal microcracks due to stress. The pipe body and the concrete structure are combined and complemented to form a space net structure with high strength and good underwater durability, the structure has less flowable particles, and compared with a backfill layer with a crossed strength or a rammed soil body with smaller porosity, the support structure 221 provided by the embodiment has the advantages of high strength, good durability, large porosity and strong water storage capacity, and the water mixed particles are less and are convenient to use.
Further, the road surface of the road 100 is optionally a permeable road surface, the base layer is a permeable base layer, and when the accumulated water on the road surface of the road 100 is discharged to the first drainage flow channel 310, part of the accumulated water can directly infiltrate downwards through the permeable road surface and the permeable base layer and accumulate in the soil body, when the accumulation capacity of the soil body is limited, water can also infiltrate from the permeable base layer into the second drainage flow channel 320 to be discharged, so that the soil body can continuously receive the road surface water seepage, and the drainage efficiency is accelerated.
Example 2
In order to alleviate the problem that some particulate impurities, such as muddy sand, which are mixed in the water flow and have a density greater than that of water, enter the filter layer 210 and remain therebetween, and it has been possible to reduce the porosity of the filter layer 210 and affect the filtering speed for a long time, the inventors further provided, on the basis of example 1, a sand settling section 313 upstream of the filtering section 312 in the first drainage flow channel 310, see fig. 1 and 2, the sand settling section 313 being used for settling particulate matters, such as muddy sand, in the water flow.
The first drainage channel 310 is further provided with a connection section 311, as shown in fig. 1 and fig. 2, the connection section 311 is located between each filtering section 312 and the sand setting section 313, so as to avoid the phenomenon that the filtered water flows are collected and flooded at one filtering section 312, and the filtered water flows can be drained in time, thereby improving the overall filtering and water storage capacity of the road 100 along the line.
Referring to fig. 2, the sand setting section 313 is used to remove a part of the high-density particulate material upstream of the filtering section 312, and the part of the particulate material is easy to enter the water storage portion 200, which has long been easy to reduce the filtering speed of the filtering layer 210 of the water storage portion 200, so that the sand setting section 313 is configured to reduce the load of the filtering section 312, reduce the amount of silt flowing through the filtering section 312, and improve the durability of the filtering layer 210 of the water storage portion 200. The above-described sand settling section 313 may be optionally provided in plural upstream of the filtering section 312, thereby achieving the effect of multistage sand settling, and the particle size or density of the particulate matter deposited by each sand settling section 313 may be different. For example, referring to fig. 2 and 3, two sand settling sections 313 are provided in this embodiment.
Referring to fig. 2 and 3, the first drainage flow channel 310 is arc-shaped at the sand setting section 313, the sand setting section 313 includes opposite concave sides 3131 and convex sides 3132, the side walls of the concave sides 3131 are concave toward the outside of the first drainage flow channel 310, the side walls of the convex sides 3132 are convex toward the inside of the first drainage flow channel 310, and referring to fig. 4, the bottom of the first drainage flow channel 310 is provided with a concave deposition portion 3134, and the deposition portion 3134 is close to the convex sides 3132. The curved direction of the sand setting section 313 is not exclusively fixed, i.e. the concave side 3131 and the convex side 3132 may be interchanged as described above, for example in this embodiment, referring to fig. 3, two sand setting sections 313 are connected in an S-shape. When the distance between the sand setting section 313 and the filtering section 312 is close, the sand setting section 313 is optionally arranged with the water outlet direction of the arc-shaped part facing the side wall of the filtering section 312 provided with the filtering device 211, that is, the filtering device 211 faces the water flow as far as possible, so that the filtering water pressure is increased, and the filtering efficiency is improved.
The principle of the arc-shaped sand setting section 313 described above is as follows:
The dotted arrows in fig. 3 show the flow direction of the water flow, which is easily formed into a lateral circulation flow in the arc-shaped sand settling section 313 due to the centrifugal force in combination with the lateral pressure provided by the side wall of the first water discharge flow channel 310 when the water flow passes through the sand settling section 313, and the dotted arrows in fig. 4 show the direction of the lateral circulation flow, which brings the high density particles entrained in the water flow from the bottom of the first water discharge flow channel 310 to the convex side 3132 through the concave side 3131 and is deposited at the deposition portion 3134 adjacent to the convex side 3132, thereby reducing the high density particles entrained in the water flow. The sand setting section 313 and the sedimentation part 3134 sediment entrained high-density particles in water flow under the condition that the drainage efficiency is not affected, the drainage efficiency and the filtering water storage are further considered, other interception devices or power devices are not required to be additionally arranged in the first drainage flow passage 310 in the structure of the sand setting section 313, the device is green and energy-saving, the problem of device replacement or maintenance is not required to be considered, and the maintenance difficulty is low and the cost is low.
In particular, on the basis of the combination of embodiment 1, the flow area of the first drainage flow channel 310 is smaller, so that the water level of the water flow is always higher, the cross circulation is easier to form, and the functions of the sand setting section 313 and the filtering section 312 are better played.
And in addition, if the drainage blind drain in the prior art is blocked, the blocking position is generally difficult to confirm, the investigation difficulty is high, and when the drainage blind drain needs to be dredged regularly due to sediment of silt, the drainage blind drain is generally excavated and dredged comprehensively, so that the labor and material resources are consumed greatly. The deposition portion 3134 provided in this embodiment is a main silt deposition area in the first drainage flow channel 310, which is favorable for periodically dredging the first drainage flow channel 310 at fixed points, and is favorable for checking the blocking position of the first drainage flow channel 310, and has low maintenance difficulty and low maintenance cost. The sand setting section 313 is at least disposed in the first drainage channel 310, and may be disposed in the second drainage channel 320 where the filtering section 312 is not disposed, so as to collect the mud and sand deposited in the second drainage channel 320.
Optionally, a blocking portion 3133 for further blocking the high-density particulate matter is provided at the sand setting section 313, and the blocking portion 3133 is a protrusion extending upward from the bottom of the first drainage flow passage 310, which is provided around the edge of the deposition portion 3134, and is provided with an opening in the upstream direction, as seen in fig. 7. The blocking portion 3133 is used for increasing the difficulty that large-density particles such as silt and the like flow away through the deposition portion 3134, the blocking portion 3133 is opened towards the upstream to reduce the obstruction to water flow, and part of silt can be conveniently and directly enter the deposition portion 3134 to be deposited, so that the drainage efficiency and the filtering effect are considered.
Further alternatively, the bottom of the first drain flow channel 310 is inclined to the location of the filter portion at least at the filter segment 312. When the water flows through the filtering section 312, the water flows more easily to the filtering part because the bottom of the first drainage channel 310 is inclined to the filtering layer 210, thereby improving the filtering efficiency and reducing the amount of water which is less than that filtered.
Further alternatively, referring to fig. 5, the first drainage channel 310 is bent at the filtering section 312, so that the filtering device 211 disposed at the filtering section 312 faces the water flow, thereby increasing the water pressure acting on the filtering device 211 and the filtering layer 210, and further improving the filtering efficiency without affecting the water drainage.
Example 3
The present embodiment provides a drainage method, in which a first drainage flow channel 310, a second drainage flow channel 320 and a water storage portion 200 are provided on at least one side of a road 100;
The accumulated water on the road 100 flows into the first drainage flow channel 310, enters the water storage part 200 after being filtered by the filtering section 312 of the first drainage flow channel 310, and is stored in the water storage layer 220 after passing through the filtering layer 210 of the water storage part 200;
when the accumulated water on the road 100 is excessive, the accumulated water flows into the first drainage flow channel 310, after the first drainage flow channel 310 is filled up, the accumulated water overflowed from the first drainage flow channel 310 enters the second drainage flow channel 320 through the overflow port 331, and the excessive accumulated water is discharged from the second drainage flow channel 320.
The drainage method has a first working state mainly comprising filtration and a second working state mainly comprising drainage, in the first working state, water flows into the water storage part 200 for filtration and storage when flowing through the filtration section 312 in the first drainage flow channel 310, the first drainage flow channel 310 enters the second working state when being full, the first drainage flow channel 310 still keeps drainage and filtration work, and the water flows beyond the overflow port 331 enter the second drainage flow channel 320 for drainage, so that the drainage rate and the filtration effect are both considered.
In the first drainage flow channel 310 and the second drainage flow channel 320, at least the first drainage flow channel 310 includes a sand setting section 313, the sand setting section 313 is disposed upstream of the filtering section 312, and when the water flows through the sand setting section 313, the particulate matters having a density greater than that of water, such as muddy sand, entrained in the water flow are deposited in the deposition portion 3134 recessed at the bottom of the sand setting section 313.
The above is only a preferred embodiment of the present application, and is not intended to limit the present application, but various modifications and variations can be made to the present application by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.
Claims (7)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297351.6A CN109881557B (en) | 2019-04-12 | 2019-04-12 | Drainage system and drainage method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910297351.6A CN109881557B (en) | 2019-04-12 | 2019-04-12 | Drainage system and drainage method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109881557A CN109881557A (en) | 2019-06-14 |
| CN109881557B true CN109881557B (en) | 2025-01-17 |
Family
ID=66937211
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910297351.6A Active CN109881557B (en) | 2019-04-12 | 2019-04-12 | Drainage system and drainage method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109881557B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110284571A (en) * | 2019-07-10 | 2019-09-27 | 青海民族大学 | A kind of drainage system and method for municipal road pavement |
| CN110485530A (en) * | 2019-07-25 | 2019-11-22 | 天一建设发展有限公司 | A kind of municipal administration rainwater-collecting building structure |
| CN112252114A (en) * | 2020-10-22 | 2021-01-22 | 南通大学 | A permeable asphalt pavement drainage system |
| CN116342319B (en) * | 2023-02-14 | 2023-08-01 | 成都建工第三建筑工程有限公司 | Drainage scheduling method, system, electronic equipment and storage medium for deep tunnel drainage |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735203A (en) * | 2016-05-04 | 2016-07-06 | 安徽理工大学 | Desilting canal |
| CN108396613A (en) * | 2018-03-30 | 2018-08-14 | 嘉兴市规划设计研究院有限公司 | Discharge structure and porous pavement drainage system |
| CN209890992U (en) * | 2019-04-12 | 2020-01-03 | 成都建工第三建筑工程有限公司 | a drainage system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3012644A1 (en) * | 1980-04-01 | 1981-10-08 | F. Dipl.-Ing. 4600 Dortmund Klauke | Solid waste separation water dam - is concave on side facing flow and pref. comprises offset rows |
| CN206308772U (en) * | 2016-12-12 | 2017-07-07 | 深圳市海腾建设工程有限公司 | Town road drainage system with quick water-discharging function |
| CN107254863B (en) * | 2017-08-02 | 2019-10-25 | 安徽理工大学 | Joint sand discharge channel |
| CN207553198U (en) * | 2017-10-16 | 2018-06-29 | 辽宁省市政工程设计研究院有限责任公司 | A kind of highway collecting structure of rainwater that can be adjusted |
| CN109208426B (en) * | 2018-09-21 | 2020-12-08 | 深圳市鹏升建设有限公司 | Municipal road construction structure and construction method thereof |
-
2019
- 2019-04-12 CN CN201910297351.6A patent/CN109881557B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105735203A (en) * | 2016-05-04 | 2016-07-06 | 安徽理工大学 | Desilting canal |
| CN108396613A (en) * | 2018-03-30 | 2018-08-14 | 嘉兴市规划设计研究院有限公司 | Discharge structure and porous pavement drainage system |
| CN209890992U (en) * | 2019-04-12 | 2020-01-03 | 成都建工第三建筑工程有限公司 | a drainage system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109881557A (en) | 2019-06-14 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN109881557B (en) | Drainage system and drainage method thereof | |
| CN105297872A (en) | LID type city rainwater closed conduit with functions of water permeating, storing, purifying and draining | |
| CN102086658B (en) | Permeation and drainage pipe duct for comprehensively utilizing rainwater | |
| CN209384255U (en) | Drainage system for tunnel foundation pit | |
| CN214459283U (en) | Municipal administration brick structure of mating formation that permeates water | |
| CN206752629U (en) | A kind of municipal works rainwater inspection well | |
| CN112429906B (en) | Special multistage purification type grass planting ditch for green sponge and construction method thereof | |
| CN211112984U (en) | Prevent ponding and prevent sponge urban road of jam | |
| CN212335694U (en) | Integrated kerbstone double-filtration drainage device | |
| CN209890992U (en) | a drainage system | |
| CN210315121U (en) | Road surface drainage system | |
| CN210421345U (en) | Sewage interception and flow expansion gutter inlet | |
| CN217973895U (en) | Permeable pavement drainage system | |
| CN214613574U (en) | Bridge drainage system | |
| CN107460938A (en) | A kind of osmosis type roads rain inlet with secondary heavy mud function | |
| CN206337480U (en) | Ecological side drain | |
| CN109706816A (en) | A kind of Collapsible Loess District urban green space ground | |
| CN212477985U (en) | Rainwater outlet infiltration system | |
| CN107434301B (en) | Vegetation filters slot | |
| CN212316594U (en) | Road surface structure device for filtering and draining water | |
| CN211113432U (en) | Check dam water storage system | |
| JP2001115507A (en) | Underground water storage system | |
| CN208473932U (en) | Multi-functional lobby water system in a kind of tunnel | |
| CN108532711B (en) | Building system based on sponge city construction | |
| CN112973271A (en) | A structure that is used for shallow water river collection water intaking water purification in mountain area |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |