阅读说明：本技术 半地下污水处理厂的顶盖雨水排放系统及污水处理厂 (Top cover rainwater drainage system of semi-underground sewage treatment plant and sewage treatment plant ) 是由 陈谷 彭弘 林臻 郝炫凯 戴炜豪 王旋 连宝菊 陈焜 苏先有 于 2021-09-06 设计创作，主要内容包括：本发明公开了一种半地下污水处理厂的顶盖雨水排放系统及污水处理厂,顶盖雨水排放系统用于污水处理厂顶盖的排水,污水处理厂顶盖包括混凝土结构层和设置于混凝土结构层上方的多个找坡层,找坡层对应于污水处理厂顶盖相应的雨水分区；半地下污水处理厂的顶盖雨水排放系统包括排水盲沟、雨水斗和落水管,排水盲沟设置于找坡层的下坡段处,落水管穿过混凝土结构层与雨水斗连接,雨水斗与排水盲沟连通,以使排水盲沟中的液体流至雨水斗中,并通过落水管流出。采用本发明,对于大面积的污水处理厂顶盖,能够将污水处理厂顶盖划分为多个分区,雨水能够通过对应分区的排水盲沟、雨水斗和落水管流出,使得污水处理厂顶盖上的雨水能够及时排出。(The invention discloses a top cover rainwater drainage system of a semi-underground sewage treatment plant and the sewage treatment plant, wherein the top cover rainwater drainage system is used for draining water of a top cover of the sewage treatment plant; the top cover rainwater drainage system of the semi-underground sewage treatment plant comprises a drainage blind ditch, a rainwater hopper and a downpipe, wherein the drainage blind ditch is arranged at a downhill section of a slope finding layer, the downpipe penetrates through a concrete structure layer to be connected with the rainwater hopper, and the rainwater hopper is communicated with the drainage blind ditch so that liquid in the drainage blind ditch flows into the rainwater hopper and flows out through the downpipe. By adopting the invention, the top cover of the sewage treatment plant with large area can be divided into a plurality of subareas, and rainwater can flow out through the drainage blind ditches, the rainwater hoppers and the downpipes of the corresponding subareas, so that the rainwater on the top cover of the sewage treatment plant can be discharged in time.)

1. The roof rainwater drainage system of the semi-underground sewage treatment plant is characterized by being used for draining of a roof of the semi-underground sewage treatment plant, the roof of the sewage treatment plant comprises a concrete structure layer and a plurality of slope-seeking layers arranged above the concrete structure layer, and the slope-seeking layers correspond to rainwater partitions corresponding to the roof of the sewage treatment plant;

the top cover rainwater drainage system comprises a drainage blind ditch, a rainwater hopper and a downpipe, wherein the drainage blind ditch is arranged at a downhill section of the slope finding layer, the downpipe penetrates through the concrete structure layer to be connected with the rainwater hopper, and the rainwater hopper is communicated with the drainage blind ditch, so that liquid in the drainage blind ditch flows into the rainwater hopper and flows out through the downpipe.

2. The roof rainwater drainage system of a semi-underground sewage treatment plant according to claim 1, wherein the height of the slope-finding layer is gradually reduced from the middle to both ends, the both ends of the slope-finding layer are provided with the downward slope sections, and the downward slope sections at both ends are respectively provided with the drainage blind ditches.

3. The rooftop rainwater drainage system of a semi-underground sewage treatment plant according to claim 1, wherein the drainage blind ditch is located at an upper side of the concrete structure layer, and a bottom surface of the drainage blind ditch is level with and passes through the slope layer.

4. The rooftop rainwater drainage system of a semi-underground sewage treatment plant according to claim 1, wherein the rooftop of the sewage treatment plant further comprises a soil cover layer covering the slope-finding layer and the drainage blind ditch.

5. The rooftop rainwater drainage system of a semi-underground sewage treatment plant according to claim 4, further comprising a rainwater manhole disposed at one side of the slope finding layer, above the concrete structure layer, and penetrating the cover soil layer; the rainwater inspection well is connected with the drainage blind ditch; the rainwater hopper is arranged in the rainwater inspection well.

6. The rooftop rainwater drainage system of a semi-underground sewage treatment plant according to claim 5, wherein the rainwater hopper is a siphon-type rainwater hopper.

7. The rooftop rainwater drainage system of a semi-underground sewage treatment plant according to claim 1, wherein the rainwater hopper is connected to the downpipe through a water pipe connector, and the water pipe connector is a sleeve pre-embedded in the concrete structural layer.

8. The rooftop rainwater drainage system of semi-underground sewage treatment plant according to claim 7, wherein the sleeve is a funnel-shaped sleeve, an outer side of the funnel-shaped sleeve is anchored in a concrete structural layer in a stepped shape, and the downpipe is screw-installed at a lower portion of the funnel-shaped sleeve.

9. The rooftop rainwater drainage system of a semi-underground sewage treatment plant according to claim 1, wherein the drainage blind ditch is provided with a plurality of rainwater openings for taking rainwater on the slope-seeking layer into the drainage blind ditch.

10. The roof rainwater drainage system of a semi-underground sewage treatment plant according to claim 1, wherein the sewage treatment plant further comprises a waterproof layer, the waterproof layer is disposed between the concrete structure layer and the slope-finding layer, the waterproof layer is provided with water falling holes, and the water falling holes correspond to the water falling pipes one to one.

11. A sewage treatment plant characterized in that it comprises a roofer storm water drainage system of a semi-underground sewage treatment plant according to any one of claims 1 to 10.

12. The wastewater treatment plant according to claim 11, wherein the downspout is in communication with a wastewater treatment basin for diverting rainwater into the wastewater treatment basin.

13. The wastewater treatment plant according to claim 11, characterized in that the wastewater treatment plant is a semi-underground and soil-covered wastewater treatment plant.

Technical Field

The invention belongs to the technical field of roof drainage, and particularly relates to a roof rainwater drainage system of a semi-underground sewage treatment plant and the sewage treatment plant.

Background

At present, a semi-underground sewage treatment plant usually adopts a double-layer capping form, each treatment unit of the sewage treatment plant is intensively arranged in an integrated treatment box body, and the top cover of the box body is used for earthing and greening planting. The area of the top cover of the box body is large, the area of the roof can often reach tens of thousands of square meters, and the large-area top cover drainage of a semi-underground sewage plant mainly has the following problems:

1. the roof with the top cover has a complex form, the roof with the top cover of the box body has multi-span combination, and the roof has different heights and complex forms due to different requirements of sewage treatment process sections.

2. The rainwater collecting area is large, the water collecting time is short, if a conventional roof rainwater gravity drainage mode is adopted, rainwater naturally flows into a rainwater hopper on a roof, and then the rainwater and air are mixed together and fall along a vertical pipe under the action of gravity; the drainage efficiency of the mode is low, the number of pipelines is large, the pipe diameters of the pipelines are large, 1% -3% of gradients are needed, and the large-area top cover is complex to install and is not economical enough.

3. The box top cap carries out the earthing, and unconventional factory building adopts gutter drainage mode of catchmenting, if not carrying out effectual drainage tissue, roofing rainwater and production overflow can't in time be got rid of to the rainwater system.

Disclosure of Invention

The invention aims to overcome the defects that the top cover of a sewage treatment plant in the prior art is short in water collecting time and difficult in rainwater drainage collection, and provides a top cover rainwater drainage system of a semi-underground sewage treatment plant and the sewage treatment plant.

The invention solves the technical problems through the following technical scheme:

the roof rainwater drainage system of the semi-underground sewage treatment plant is characterized by being used for draining roof of the sewage treatment plant, the roof of the sewage treatment plant comprises a concrete structure layer and a plurality of slope-seeking layers arranged above the concrete structure layer, and the slope-seeking layers correspond to corresponding rainwater partitions of the roof of the sewage treatment plant;

the top cover rainwater drainage system comprises a drainage blind ditch, a rainwater hopper and a downpipe, wherein the drainage blind ditch is arranged at a downhill section of the slope finding layer, the downpipe penetrates through the concrete structure layer to be connected with the rainwater hopper, and the rainwater hopper is communicated with the drainage blind ditch, so that liquid in the drainage blind ditch flows into the rainwater hopper and flows out through the downpipe.

In the scheme, the top cover of the sewage treatment plant is divided into a plurality of subareas, each subarea is provided with a corresponding slope finding layer, a drainage blind ditch is arranged on the slope finding layer, and rainwater is discharged through a rainwater hopper and a downpipe; thereby to sewage treatment plant top cap of large tracts of land, can divide sewage treatment plant top cap into a plurality of subregion, the rainwater can flow through drainage blind ditch, rainwater fill and the pipe in the water that corresponds the subregion for rainwater on the sewage treatment plant top cap can in time be discharged.

Preferably, the height of the slope finding layer is gradually reduced from the middle to two ends, the two ends of the slope finding layer are provided with the downward slope sections, and the downward slope sections at the two ends are respectively provided with the drainage blind ditches.

In this scheme, the rainwater can follow the drainage french drain of looking for the middle flow direction both ends on slope layer to can promote the efficiency of drainage.

Preferably, the drainage blind ditch is arranged on the upper side of the concrete structure layer, and the bottom surface of the drainage blind ditch is level with the slope finding layer and penetrates through the slope finding layer.

Preferably, the top cover of the sewage treatment plant further comprises a covering soil layer, and the covering soil layer covers the slope finding layer and the drainage blind ditch.

Preferably, the roof rainwater drainage system further comprises a rainwater inspection well, wherein the rainwater inspection well is arranged on one side of the slope finding layer, is positioned above the concrete structure layer and penetrates through the soil covering layer; the rainwater inspection well is connected with the drainage blind ditch; the rainwater hopper is arranged in the rainwater inspection well.

Preferably, the rainwater hopper is a siphon rainwater hopper.

In this scheme, through be provided with the rainwater inspection shaft that supplies hydrocone type rainwater fill installation on looking for the slope layer, can make hydrocone type rainwater fill install in the rainwater inspection shaft, when carrying out the drainage, be convenient for form the required condition of siphonage, be favorable to the emission of roofing ponding.

Preferably, the rainwater hopper is connected with the downpipe through a water pipe connector, and the water pipe connector is a sleeve pre-embedded in the concrete structure layer.

In this scheme, through at the pre-buried muffjoint spare in concrete structure layer, can be convenient for rainwater fill and pipe in the water be connected.

Preferably, the sleeve is a funnel-shaped sleeve, the outer side of the funnel-shaped sleeve is anchored in the concrete structural layer in a step shape, and the downpipe is installed at the lower part of the funnel-shaped sleeve in a threaded mode.

Preferably, the drainage blind ditch is provided with a plurality of rainwater openings, and the rainwater openings are used for bringing rainwater on the slope finding layer into the drainage blind ditch.

In this scheme, through set up a plurality of inlet for stoms water on the drainage french drain to the rainwater that looks for the slope layer to flow down can flow into in the drainage french drain through this inlet for stoms water.

Preferably, the sewage treatment plant further comprises a waterproof layer, the waterproof layer is arranged between the concrete structure layer and the slope finding layer, the waterproof layer is provided with water falling holes, and the water falling holes correspond to the water falling pipes one to one.

A sewage treatment plant characterized in that it comprises a roof rainwater drainage system of a semi-underground sewage treatment plant as described above.

Preferably, the downpipe is communicated with the sewage treatment tank and is used for guiding rainwater into the sewage treatment tank.

In this scheme, through with pipe in the water and sewage treatment pond intercommunication to can reduce because top cap rainwater catchment area is big, catchment time short causes the large tracts of land drainage influence to the factory with rainwater drainage to in sewage treatment pond.

Preferably, the sewage treatment plant is a sewage treatment plant which is semi-underground and is provided with covering soil.

The positive progress effects of the invention are as follows: dividing a top cover of a sewage treatment plant into a plurality of subareas, wherein each subarea is provided with a corresponding slope finding layer, a drainage blind ditch is arranged on the slope finding layer, and rainwater is discharged through a rainwater hopper and a downpipe; thereby to sewage treatment plant top cap of large tracts of land, can divide sewage treatment plant top cap into a plurality of subregion, the rainwater can flow through drainage blind ditch, rainwater fill and the pipe in the water that corresponds the subregion for rainwater on the sewage treatment plant top cap can in time be discharged.

Drawings

FIG. 1 is a schematic side view of a rooftop storm water drainage system for a semi-underground sewage treatment plant according to an embodiment of the present invention;

fig. 2 is a schematic plan view of a top cover drainage unit according to an embodiment of the present invention.

Description of the reference numerals

Concrete structure layer 1

Water-proof layer 2

Slope finding layer 3

Soil-covering layer 4

Drainage blind ditch 5

Rainwater hopper 6

Downpipe 7

Gutter inlet 8

Rainwater inspection shaft 9

Detailed Description

The invention is further illustrated by the following examples, which are not intended to limit the scope of the invention.

The embodiment of the invention provides a top cover rainwater drainage system of a semi-underground sewage treatment plant, which is used for draining water of a top cover of the sewage treatment plant. Further, the embodiment is described by taking the roof rainwater drainage system applied to roof rainwater drainage of a sewage treatment plant as an example, and particularly relates to a semi-underground sewage plant with a large-area roof covered with soil.

As shown in fig. 1, a top cover of a sewage treatment plant is sequentially provided with a concrete structure layer 1, a slope finding layer 3 and a covering soil layer 4 from bottom to top; the slope finding layer 3 corresponds to a corresponding rainwater subarea of a top cover of a sewage treatment plant. In actual implementation, the design amount of rainwater can be determined, the drainage partitions are divided according to the arrangement of the top cover, the drainage units are arranged, one drainage unit corresponds to one rainwater partition, and therefore large-area top cover drainage is divided into a plurality of rainwater partitions to serve as drainage units to be arranged in corresponding top cover rainwater drainage systems. Wherein, the covering soil layer 4 covers on the slope finding layer 3 and correspondingly covers on the drainage blind ditch 5 arranged on the slope finding layer 3.

As shown in fig. 1 and 2, the roof rainwater drainage system includes a blind drain 5, a rainwater hopper 6 and a downpipe 7, the blind drain 5 is disposed at a downhill section of the slope layer 3, the downpipe 7 passes through the concrete structure layer 1 and is connected with the rainwater hopper 6, and the rainwater hopper 6 is communicated with the blind drain 5, so that the liquid in the blind drain 5 flows into the rainwater hopper 6 and flows out through the downpipe 7. Thereby the rainwater can flow out through the drainage blind ditch 5, the rainwater fill 6 and the downpipe 7 of corresponding subregion for rainwater on the sewage treatment plant top cap can in time be discharged.

As a preferred embodiment, as shown in fig. 1, the height of the slope layer 3 gradually decreases from the middle to the two ends, the two ends of the slope layer 3 have downward slope sections, and the downward slope sections at the two ends are respectively provided with drainage blind ditches 5. Rainwater can flow to the drainage blind ditches 5 at two ends from the middle of the slope finding layer 3, so that the drainage efficiency can be improved. As shown in fig. 1 and 2, the slope of the radial two ends of the slope layer 3 may be 2%, and the drainage blind ditch 5 may also have a slope of 1% from the middle to the two ends, so that the rainwater on the slope layer 3 may flow into the drainage blind ditch 5 along the radial direction, then flow into the drainage blind ditch 5 to the two ends, and flow into the rainwater hoppers 6 arranged at the two ends.

As a preferred embodiment, as shown in fig. 1, the drainage blind ditch 5 is arranged on the upper side of the concrete structure layer 1, and the bottom surface of the drainage blind ditch 5 is level with the slope layer 3 and penetrates through the slope layer 3. As shown in fig. 2, the blind drain 5 extends in the same height direction as the slope layer 3.

As a preferred embodiment, as shown in fig. 1 and 2, the upper surface of the blind drain ditch 5 is provided with a plurality of rain water inlets 8, and the rain water inlets 8 are used for taking rain water on the slope layer 3 into the blind drain ditch 5. This inlet for stom water 8's size and drainage french drain 5 phase-match, rainwater infiltration see through the overburden layer 4 and fall to on looking for slope layer 3, look for slope layer 3 and have certain slope, can assemble the rainwater to drainage french drain 5 through looking for slope layer 3 and drain bar in, the rainwater that forms the runoff passes through inlet for stom water 8 entering wherein of drainage french drain 5 upper surface, flows through rainwater fill 6 and pipe in the water 7 again.

As a preferred embodiment, as shown in fig. 1 and 2, the roof rainwater drainage system further comprises a rainwater inspection well 9, wherein the rainwater inspection well 9 is arranged at one side of the slope finding layer, is positioned above the concrete structure layer 1 and penetrates through the soil covering layer 4; the rainwater inspection well 9 is connected with the drainage blind ditch 5; the rainwater hopper 6 is arranged in the rainwater inspection well 9.

In particular, the rainwater manhole 9 is preferably a rectangular manhole.

In a preferred embodiment, the rain hopper 6 is a siphon type rain hopper 6. Through the arrangement form of the slope layer 3, the drainage blind ditch 5 and the rainwater inspection well 9, natural conditions required by siphonage can be formed, and the siphonage type rainwater hopper 6 is adopted, so that the drainage effect of accumulated water on the top cover is favorably improved.

During construction, a plurality of rainwater inspection wells 9 can be arranged at the upper parts of the top cover slope-finding layers 3 during pouring, the outer sides of the rainwater inspection wells 9 are connected to the drainage blind ditches 5, and 1-2 siphon rainwater hoppers 6 are buried at the bottoms of the rainwater inspection wells 9.

In a preferred embodiment, the rain water bucket 6 is connected to the downpipe 7 through a water pipe connector, which is a sleeve embedded in the concrete structure layer 1.

In a preferred embodiment, the sleeve is a funnel-shaped sleeve, the outer side of which is anchored in the concrete structure layer 1 in a stepped manner, and the downpipe 7 is threadedly mounted on the lower portion of the funnel-shaped sleeve.

As a preferred embodiment, as shown in fig. 1, the sewage treatment plant further includes a waterproof layer 2, the waterproof layer 2 is disposed between the concrete structure layer 1 and the slope layer 3, the waterproof layer 2 is provided with water falling holes, and the number of the water falling holes is equal to the number of the water falling pipes 7 and corresponds to one another. By paving the waterproof layer 2 on the concrete structure layer 1 and arranging the corresponding water falling hole on the waterproof layer 2, rainwater on the slope finding layer 3 can be prevented from leaking to the concrete structure layer 1, and the service time of the concrete structure layer 1 is prolonged.

In actual implementation, the runoff coefficient, the recurrence period and the flow collecting time can be selected according to the conditions of the top cover and the requirements of a site, the unit rainwater flow is calculated according to a rainstorm intensity formula, and the size of the drainage blind ditch 5, the number of the siphon rainwater hoppers 6 and the diameter of the downpipe 7 are designed.

The embodiment of the invention also provides a sewage treatment plant, which is a sewage treatment plant with semi-underground and soil-covered soil, and further can be provided with a large-area roof with soil-covered soil, and the sewage treatment plant comprises the roof rainwater drainage system of the semi-underground sewage treatment plant. Therefore, the top cover with different heights and complex forms can discharge rainwater on the top cover in time for the top cover with different heights and complex forms of the sewage treatment process section.

In a preferred embodiment, the downpipe 7 is communicated with the sewage treatment tank for guiding rainwater into the sewage treatment tank. Therefore, rainwater can be drained to the sewage treatment tank, and the influence on large-area drainage of a plant area caused by large catchment area of rainwater on the top cover and short catchment time can be reduced.

The top cover rainwater drainage system of the semi-underground sewage treatment plant can divide the top cover of the sewage treatment plant according to the rainwater condition, and a corresponding drainage system is arranged in each drainage unit, so that rainwater or accumulated water on the top cover can be timely drained for large areas and top covers with different process section elevations. When being applied to sewage treatment plant, can be again with pipe in the water 7 drainage to sewage treatment pond in, avoid terminal ponding or discharge untimely, also can handle the rainwater correspondingly.

While specific embodiments of the invention have been described above, it will be appreciated by those skilled in the art that this is by way of example only, and that the scope of the invention is defined by the appended claims. Various changes and modifications to these embodiments may be made by those skilled in the art without departing from the spirit and scope of the invention, and these changes and modifications are within the scope of the invention.