CN214497237U - Silt-preventing and blocking-preventing device of combined system sewage conveying box culvert - Google Patents
Silt-preventing and blocking-preventing device of combined system sewage conveying box culvert Download PDFInfo
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- CN214497237U CN214497237U CN202120107074.0U CN202120107074U CN214497237U CN 214497237 U CN214497237 U CN 214497237U CN 202120107074 U CN202120107074 U CN 202120107074U CN 214497237 U CN214497237 U CN 214497237U
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Abstract
The utility model provides a confluence system sewage transmission box culvert prevent stifled device that becomes silted up, it includes the box culvert body, parallel overflow weir and V type overflow weir. Through the combination of two kinds of different structure overflow weirs, showing the section that overflows that reduces regional arid season rain dirty mixed flow sewage of urban confluence system and pass through the box culvert, the increase velocity of flow reduces the silt siltation, effectively reduces the clear silt volume of box culvert and desilting frequency in arid season. Meanwhile, in rainy season, the mixed flow of rain and sewage is increased, and the sewage can overflow the overflow weir combined structure to carry out full-section overflow, so that the flood control and drainage functions of the box culvert in rainy season on cities are not influenced; therefore, the effects of effectively reducing silt deposition and dredging frequency of the box culvert in dry seasons can be achieved on the premise of not influencing the overflowing capacity of the box culvert in rainy seasons. The device simple structure, economy are suitable for, have both solved box culvert dry season silt siltation problem, do not influence simultaneously and overflow in the rainy season, and do not need any power equipment, do not have medicament or power consumption, possess energy-conservation and subtract the economy and the environmental benefit of consuming, reducing the maintenance cost.
Description
Technical Field
The utility model relates to a sewage treatment technical field especially relates to a stifled device that becomes silted up of confluence system sewage transmission box culvert.
Background
At present, most of the drainage systems of cities, especially old cities, in China mostly adopt combined drainage systems. Most of the rainwater and sewage drainage systems are mixed, and part of the urban new district split system and combined system drainage systems coexist. Due to the fact that rapid urban development often causes urban sewage discharge scale to exceed the originally planned sewage discharge capacity, shortage of links such as construction, operation and maintenance of drainage pipe networks, lack of protection consciousness of resident water environment and the like, under the condition of complete rain and sewage flow distribution, rain and sewage pipe networks are still connected in a mixed mode, sewage is discharged into rainwater box culverts, river channels and lake water bodies, and the fact that a complete flow distribution drainage system is difficult to implement rapidly and effectively in practical application of urban construction and operation is caused. Therefore, the adoption of a combined-flow interception system in partial urban areas (including new areas) for a long time is a necessary choice for the urban drainage system in China at present.
The confluence area has the unstable condition of rainwater and sewage inflow water quality and water yield, and the dry season sewage volume is few, and pollutant concentration is high, and sewage velocity of flow is slow in the box culvert, and the rainy season rainwater yield is big, and pollutant concentration is lower relatively, and the rain-sewage mixture velocity of flow is fast. Carry fine sand, silt matter silt (wash and rush down matter) and domestic waste etc. and get into in the dry season sewage and cut dirty culvert pipe, just little rain mixed flow sewage carries river course silt and gets into and cuts dirty box culvert, the sediment is in the enclosure space dry and wet alternation easily appears, the problem of hardening and sclerosis, its antiscour velocity of flow is big, and the clearance construction degree of difficulty is big, seriously influence rivers ability of overflowing, and then lead to the rainy season to come temporarily, because box culvert transmission ability descends, the waterlogging phenomenon appears in upper reaches urban area.
Utility model patent with application number CN201620290124.2 discloses a river course box culvert with distribution of rain and sewage and overflow function. It is including the box culvert body, overflow weir and vatch basin, and the box culvert body is rectangular shape box, sets up two overflow weirs side by side along two inside walls of the box culvert body, and the overflow weir height is less than the box culvert internal side wall, constitutes sewage passageway between overflow weir and the box culvert internal side wall, constitutes the flood passage of river circulation between two overflow weirs, and sewage passageway's both ends are sealed to the excavation has the vatch basin under the stratum of the lower one end of position wherein, sets up the drill way of introducing the rainwater on the box culvert body side wall.
Utility model patent with application number CN201920554033.9 discloses a pipe culvert combines to cut dirty structure with blowdown and first rain regulation function. The box culvert structure comprises a box culvert structure, wherein the box culvert structure is embedded in a municipal drainage pipe network; the box culvert structure is internally provided with a front end regulating storage tank, a main regulating storage tank and a drainage tank from upstream to downstream in sequence, and the drainage tank is communicated with a municipal drainage pipe at the downstream side of the box culvert structure; the upper portion in the box culvert structure sets up normal drainage channel, does not pass through drainage pond and direct and box culvert structure downstream side's municipal drainage pipe intercommunication.
The utility model patent with application number CN201821324714.8 discloses a municipal box culvert sewage confluence system. The device comprises a municipal box culvert, a weir type intercepting well and a collecting well; the bottom of one side wall of the municipal box culvert is provided with a flow combining hole; the bottom of the municipal box culvert is provided with a buoy weir plate vertical to the water flow direction, and the height of the buoy weir plate is 1/4-1/3 of the municipal box culvert; the flotation pontoon weir plate is arranged in intercepting the water in the municipal box culvert, and when the water level was than the end in the municipal box culvert, sewage was all intercepted by the flotation pontoon weir plate, got into the weir formula vatch basin through the confluence hole in, then flowed into the collection well again, through the stealthily dirty pump suction sewage factory in the collection well, when the water level was higher, the flotation pontoon weir plate was opened and is abandoned the flow, and water drainage is into the water.
However, the structure has the defect that dry season sediment accumulation and rain season high-efficiency overflowing transmission cannot be efficiently solved at the same time. In view of the above, there is a need to design an anti-clogging device for a combined sewage transportation box culvert to solve the above problems.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a what confluence system sewage transmission box culvert prevents becoming silted up stifled device, through changing the dirty mixed flow of rain in dry season and the different seasons of rainy season and dirty water segment face structure that overflows to solve dry season because the dirty mixed flow of rain sewage water inflow is few, the velocity of flow reduces, and sewage carries river course silt to get into and cuts dirty box culvert deposit, blocks up the box culvert, and because the box culvert ability that overflows reduces when the rainy season, causes the problem of upper reaches urban area waterlogging.
In order to realize the utility model, the utility model provides a confluence system sewage transmission box culvert prevent becoming silted up stifled device, its characterized in that: the silt-preventing device of the combined system sewage conveying box culvert comprises a box culvert body, parallel overflow weirs which are symmetrical and arranged in the box culvert body side by side and V-shaped overflow weirs which are arranged on the upstream of the parallel overflow weirs and are respectively connected with the parallel overflow weirs at two ends.
As a further improvement of the utility model, the box culvert body is a strip-shaped box body and is provided with a first side wall extending along the water flow direction; the parallel overflow weir comprises two overflow weirs which are arranged in parallel relatively, and the extending direction of the parallel overflow weir is parallel to the extending direction of the first side wall.
As the further improvement of the utility model, the unilateral overflow weir with it closes on distance between the first lateral wall does 0 ~ 1/3 of box culvert body width.
As a further improvement of the utility model, the height of the parallel overflow weir is 1/4-1/3 of the height of the box culvert body.
As a further improvement of the utility model, the V-shaped overflow weir set up in the water inlet of the box culvert body, it includes that mutual symmetry sets up and the crossing first V-shaped overflow weir and the crossing second V-shaped overflow weir of tip.
As a further improvement of the utility model, the angle of the included angle alpha between the first V-shaped overflow weir and the second V-shaped overflow weir is 60-150 degrees.
As a further improvement of the present invention, the first V-shaped overflow weir and the second V-shaped overflow weir intersect on the vertical central axial plane of the box culvert body in the length direction.
As a further improvement of the utility model, the box culvert body the parallel overflow weir with the V-shaped overflow weir all adopts concrete material.
As a further improvement of the utility model, the height of the V-shaped overflow weir 3 is 1/4-1/3 of the height of the box culvert body.
As a further improvement of the present invention, the angle between the first V-shaped overflow weir and the included angle β in the width direction of the box culvert body is 30 ° to 60 °.
The utility model has the advantages that:
1. the utility model provides a meeting system sewage transmission box culvert prevent silting up stifled device, through at box culvert internal portion set up parallel overflow weir and V type overflow weir, adopt the union of two kinds of not isostructure overflow weirs, thereby reduce the urban meeting system regional dry season dirty mixed flow sewage of rain and water through the section that overflows of box culvert, the increase velocity of flow, reduce silt siltation, it is less effectively to solve urban meeting system regional reason dry season upper reaches meeting system dirty mixed flow sewage of rain and water, the technical defect of silt deposit jam box culvert effectively reduces dry season box culvert silt removal volume and desilting frequency. Meanwhile, in rainy season, the flow of the mixed flow sewage of rain and sewage is increased, the mixed flow sewage can overflow the overflow weir to carry out full-section overflow, and the flood control and drainage functions of the box culvert in rainy season on cities are not influenced; therefore, the effects of effectively reducing silt deposition and dredging frequency of the box culvert in dry seasons can be achieved on the premise of not influencing the overflowing capacity of the box culvert in rainy seasons.
2. The utility model provides a confluence system sewage transmission box culvert prevent silting up stifled device, simple structure, economy are suitable for, have both solved box culvert dry season silt siltation problem, do not influence simultaneously rainy season and overflow, and need not any power equipment, do not have medicament or power consumption, possess energy-conservation and subtract consume, reduce the economic and environmental benefit of maintenance cost.
Drawings
Fig. 1 is a schematic plane structure diagram of the silt-blocking prevention device of the combined system sewage conveying box culvert provided by the utility model.
Figure 2 is the utility model provides a confluence system sewage transmission box culvert prevent the section sketch map of the parallel overflow weir section of stifled device that becomes silted up.
Figure 3 is the utility model provides a confluence system sewage transmission box culvert prevent silting up the section sketch map of V type overflow weir section of stifled device.
Reference numerals
1-box culvert body; 2-parallel overflow weir; a 3-V-shaped overflow weir; 31-a first V-shaped weir; 32-second V-shaped overflow weir.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
It should be noted that, in order to avoid obscuring the present invention with unnecessary details, only the structures and/or processing steps closely related to the aspects of the present invention are shown in the drawings, and other details not relevant to the present invention are omitted.
In addition, it is also to be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Referring to fig. 1, the utility model provides a flow-combining sewage conveying box culvert block-up prevention device, which comprises a box culvert body 1, a parallel overflow weir 2 which is symmetrical and arranged in the box culvert body 1 side by side, and a V-shaped overflow weir 3 which is arranged at the upstream of the parallel overflow weir 2 and has two ends respectively connected with the parallel overflow weir 2.
In the present embodiment, the box culvert 1 is an elongated box having a first sidewall (not labeled) extending in the direction of water flow. The parallel overflow weirs 2 are symmetrically arranged on the bottom wall inside the box culvert body and comprise two overflow weirs which are arranged in parallel relatively, and the extending direction of the parallel overflow weirs (2) is parallel to the extending direction of the first side wall.
Referring to fig. 2, the distance between the overflow weir on one side and the adjacent first sidewall is 0 to 1/3 of the width of the box culvert 1, and the distance is determined according to the inflow of the upstream urban area in dry seasons. Meanwhile, the height of the parallel overflow weir 2 is 1/4-1/3 of the height of the box culvert body 1. And the two sections of parallel overflow weirs 2 are used for overflowing in rainy seasons.
Referring to fig. 1 and 3, the V-shaped overflow weir 3 is disposed at the water inlet of the box culvert 1, and includes a first V-shaped overflow weir 31 and a second V-shaped overflow weir 32, which are symmetrically disposed and intersect at end portions.
In the present embodiment, an angle α at which the first V-shaped overflow weir 31 and the second V-shaped overflow weir 32 intersect is 30 ° to 150 °. The first V-shaped overflow weir 31 and the second V-shaped overflow weir 32 intersect on the vertical middle axial plane of the length direction of the box culvert body 1, that is, the starting point of the V-shaped overflow weir 3 is located at the middle point of the bottom of the upper stream of the box culvert body 1, and both sides of the V-shaped overflow weir 3 extend at an included angle α downstream and are connected with the ends of two parallel overflow weirs 2, thereby forming an integral overflow weir structure formed by combining two overflow weirs with different structures, which is mainly used for dividing the water from the upper stream in dry seasons without causing water blockage. The V-shaped overflow weir 3 is connected with the parallel overflow weir 2 to form an overflow trough (not marked in the figure) for overflowing in rainy season.
Specifically, the height of the V-shaped overflow weir 3 is 1/4-1/3 of the height of the box culvert 1. And the height of the V-shaped overflow weir 3 is the same as that of the parallel overflow weir 2. The angle between the first V-shaped overflow weir 31 and the included angle beta in the width direction of the box culvert 1 is 30-60 degrees.
In this embodiment, the box culvert body 1, the parallel overflow weir 2 and the V-shaped overflow weir 3 are all made of concrete.
The utility model provides a meeting system sewage transmission box culvert prevent silting up stifled device, through the combined structure who sets up two kinds of different structure overflow weirs of parallel overflow weir 2 and V type overflow weir 3 inside the box culvert body 1, can show the section that overflows that reduces the regional arid season rain dirty mixed flow sewage of urban meeting system through the box culvert body 1, the increase velocity of flow reduces silt siltation, it is less because of the regional income of arid season upper reaches meeting system rain dirty mixed flow sewage of urban meeting system effectively to solve urban meeting system, silt deposit blocks up the technical defect that the box culvert, effectively reduce the dry season box culvert clear silt volume and clear silt frequency. Meanwhile, in rainy season, the flow of the mixed flow sewage of rain and sewage is increased, the mixed flow sewage can overflow the overflow weir to carry out full-section overflow, and the flood control and drainage functions of the box culvert in rainy season on cities are not influenced; thereby realize under the prerequisite that does not influence the box culvert rainy season ability of overflowing, can effectively reduce the efficiency of dry season box culvert silt siltation and desilting frequency, its theory of operation lies in:
in dry seasons, the sewage flow that 1 upper reaches urban area pipe network sewage of box culvert body and rainwater are constituteed is little, overflows from 1 both sides of box culvert body, and the section that overflows this moment only from by the whole overflow weir structure that parallel overflow weir 2 and V type overflow weir 3 combination formed with regional overflow between the box culvert body 1, the area of overflowing reduces, and the velocity of flow increases, and the silt that carries is difficult for the deposit in the confluence system sewage.
In rainy season, the upper reaches urban area receives the rainfall influence, leads to the confluence system sewage flow increase, and at this moment, the section of overflowing between whole overflow weir structure and the box culvert body 1 can't satisfy the requirement of overflowing, and the rainwater rises to the height that is higher than whole overflow weir structure this moment, overflows to the overflow launder in through whole overflow weir structure, transmits through the overflow launder.
To sum up, the utility model provides a confluence system sewage transmission box culvert prevent silting up stifled device, it include the box culvert body, symmetry and establish side by side in the internal parallel overflow weir of box culvert and set up in the upper reaches of parallel overflow weir and both ends respectively with the V type overflow weir that parallel overflow weir connects. Adopt the combination of two kinds of different structure overflow weirs, showing the section that overflows that reduces regional arid season rain dirty mixed flow sewage of urban confluence system through the box culvert, the increase velocity of flow reduces the silt siltation, and it is less effectively to solve the regional mixed flow sewage of urban confluence system rain dirty because of the arid season upper reaches confluence system comes water, and the technical defect of box culvert is blockked up in the sediment deposit, effectively reduces arid season box culvert silt removal volume and desilting frequency. Meanwhile, in rainy season, the flow of the mixed flow sewage of rain and sewage is increased, the mixed flow sewage can overflow the overflow weir to carry out full-section overflow, and the flood control and drainage functions of the box culvert in rainy season on cities are not influenced; therefore, the effects of effectively reducing silt deposition and dredging frequency of the box culvert in dry seasons can be achieved on the premise of not influencing the overflowing capacity of the box culvert in rainy seasons. The device simple structure, economy are suitable for, have both solved box culvert dry season silt siltation problem, do not influence simultaneously and overflow in the rainy season, and do not need any power equipment, do not have medicament or power consumption, possess energy-conservation and subtract the economy and the environmental benefit of consuming, reducing the maintenance cost.
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 the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced equivalently without departing from the spirit and scope of the technical solutions of the present invention.
Claims (10)
1. The utility model provides a stifled device that becomes silted up of preventing of confluence system sewage transmission box culvert which characterized in that: the silt-preventing device of the combined system sewage conveying box culvert comprises a box culvert body (1), parallel overflow weirs (2) arranged in the box culvert body (1) side by side and V-shaped overflow weirs (3) arranged at the upper reaches and two ends of the parallel overflow weirs (2) and connected with the parallel overflow weirs (2) respectively.
2. The anti-clogging device of a combined sewage conveying box culvert according to claim 1, wherein: the box culvert body (1) is a strip-shaped box body and is provided with a first side wall extending along the water flow direction; the parallel overflow weir (2) comprises two overflow weirs which are arranged in parallel relatively, and the extending direction of the parallel overflow weir (2) is parallel to the extending direction of the first side wall.
3. The anti-clogging device of a combined sewage conveying box culvert according to claim 2, wherein: the distance between the overflow weir on one side and the first side wall adjacent to the overflow weir on one side is 0-1/3 of the width of the box culvert body (1).
4. The anti-clogging device of a combined sewage conveying box culvert according to claim 1, wherein: the height of the parallel overflow weir (2) is 1/4-1/3 of the height of the box culvert body (1).
5. The anti-clogging device of a combined sewage conveying box culvert according to claim 1, wherein: the V-shaped overflow weir (3) is arranged at the water inlet of the box culvert body (1) and comprises a first V-shaped overflow weir (31) and a second V-shaped overflow weir (32) which are symmetrically arranged and the ends of which are crossed.
6. The anti-clogging device of a combined sewage conveying box culvert according to claim 5, wherein: the angle alpha of the intersection included angle between the first V-shaped overflow weir (31) and the second V-shaped overflow weir (32) is 30-150 degrees.
7. The anti-clogging device of a combined sewage conveying box culvert according to claim 5, wherein: the first V-shaped overflow weir (31) and the second V-shaped overflow weir (32) are intersected on a vertical middle axial plane in the length direction of the box culvert body (1).
8. The anti-clogging device of a combined sewage conveying box culvert according to claim 1, wherein: the box culvert body (1), the parallel overflow weir (2) and the V-shaped overflow weir (3) are all made of concrete materials.
9. The anti-clogging device of a combined sewage conveying box culvert according to claim 1, wherein: the height of the V-shaped overflow weir (3) is 1/4-1/3 of the height of the box culvert body (1).
10. The anti-clogging device of a combined sewage conveying box culvert according to claim 6, wherein: the angle between the first V-shaped overflow weir (31) and the included angle beta in the width direction of the box culvert body (1) is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120107074.0U CN214497237U (en) | 2021-01-15 | 2021-01-15 | Silt-preventing and blocking-preventing device of combined system sewage conveying box culvert |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120107074.0U CN214497237U (en) | 2021-01-15 | 2021-01-15 | Silt-preventing and blocking-preventing device of combined system sewage conveying box culvert |
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| Publication Number | Publication Date |
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| CN214497237U true CN214497237U (en) | 2021-10-26 |
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| CN202120107074.0U Active CN214497237U (en) | 2021-01-15 | 2021-01-15 | Silt-preventing and blocking-preventing device of combined system sewage conveying box culvert |
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| CN (1) | CN214497237U (en) |
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- 2021-01-15 CN CN202120107074.0U patent/CN214497237U/en active Active
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