CN114934576A - Municipal rainwater anti-blocking type discharge system - Google Patents

Municipal rainwater anti-blocking type discharge system Download PDF

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Publication number
CN114934576A
CN114934576A CN202210568736.3A CN202210568736A CN114934576A CN 114934576 A CN114934576 A CN 114934576A CN 202210568736 A CN202210568736 A CN 202210568736A CN 114934576 A CN114934576 A CN 114934576A
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CN
China
Prior art keywords
hole
filter
filter plate
rainwater
plate
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Granted
Application number
CN202210568736.3A
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Chinese (zh)
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CN114934576B (en
Inventor
宗忠
周彬
高发明
顾梦丹
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Jiangsu Runerda Construction Engineering Co Ltd
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Jiangsu Runerda Construction Engineering Co Ltd
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Priority to CN202210568736.3A priority Critical patent/CN114934576B/en
Publication of CN114934576A publication Critical patent/CN114934576A/en
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Publication of CN114934576B publication Critical patent/CN114934576B/en
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    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/04Gullies inlets, road sinks, floor drains with or without odour seals or sediment traps
    • E03F5/0401Gullies for use in roads or pavements
    • E03F5/0404Gullies for use in roads or pavements with a permanent or temporary filtering device; Filtering devices specially adapted therefor
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/62Regenerating the filter material in the filter
    • B01D29/66Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps
    • B01D29/68Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles
    • B01D29/688Regenerating the filter material in the filter by flushing, e.g. counter-current air-bumps with backwash arms, shoes or nozzles with backwash arms or shoes acting on the cake side
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01DSEPARATION
    • B01D29/00Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor
    • B01D29/88Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices
    • B01D29/94Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/00 - B01D27/00; Filtering elements therefor having feed or discharge devices for discharging the filter cake, e.g. chutes
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F3/00Sewer pipe-line systems
    • E03F3/04Pipes or fittings specially adapted to sewers
    • EFIXED CONSTRUCTIONS
    • E03WATER SUPPLY; SEWERAGE
    • E03FSEWERS; CESSPOOLS
    • E03F5/00Sewerage structures
    • E03F5/14Devices for separating liquid or solid substances from sewage, e.g. sand or sludge traps, rakes or grates
    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02ATECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A30/00Adapting or protecting infrastructure or their operation
    • Y02A30/60Planning or developing urban green infrastructure

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Hydrology & Water Resources (AREA)
  • Public Health (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Sewage (AREA)

Abstract

The invention relates to the field of municipal drainage engineering, in particular to a municipal rainwater anti-blocking type drainage system which comprises a sewer pipe and a filter plate arranged in the sewer pipe, wherein a plurality of filter holes are formed in the filter plate along the direction far away from the axis of the filter plate, an overflow water chamber with a hollow interior is arranged on the outer side wall of the sewer pipe, an overflow port communicated with the overflow water chamber is formed in the side wall of the sewer pipe, the overflow port is higher than the filter plate, reverse punched holes which are arranged in an inclined mode are formed in the side wall, opposite to the filter holes, in the filter plate, and a reverse flushing assembly used for introducing rainwater into each reverse flushing hole is arranged in the overflow water chamber, so that large-area garbage blocked in the filter holes is flushed out. This application has the effect of environmental protection.

Description

Municipal rainwater anti-blocking type discharge system
Technical Field
The invention relates to the field of municipal drainage engineering, in particular to a municipal rainwater anti-blocking type drainage system.
Background
The urban drainage system is an engineering facility system for treating and removing urban sewage and rainwater, and is a component of urban public facilities. Urban drainage system planning is an integral part of urban overall planning. Wherein the rainwater drainage system is one of the important components of the municipal sewage drainage system.
The Chinese patent with the publication number discloses a treatment device beneficial to municipal drainage, which comprises a sewer pipe communicated with an underground drainage pipeline, wherein a rainwater grate is arranged at an opening at the upper end of the sewer pipe, and a conical net barrel is arranged in the sewer pipe.
When rainwater on the road surface passes through the rainwater grate and flows into the sewer pipe, large-area garbage can be brought to the conical net barrel, however, the large-area garbage can block the meshes of the conical net barrel to cause the sewer pipe to be blocked, and the rainwater on the road surface can not be timely discharged to cause environmental pollution.
Disclosure of Invention
In order to improve the unable underground drainage pipeline of in time draining into of rainwater on the road surface and cause environmental pollution's problem, this application provides a stifled type discharge system is prevented to municipal administration rainwater.
The application provides a stifled type discharge system is prevented to municipal administration rainwater adopts following technical scheme:
the utility model provides a municipal administration rainwater prevents stifled type discharge system, is in including downcomer and setting filter in the downcomer, a plurality of filtration pores of crossing have been seted up along the direction of keeping away from its axis on the filter, be provided with inside hollow overflow water chamber on the lateral wall of downcomer, open on the lateral wall of downcomer have with the communicating overflow mouth of overflow water chamber just the overflow mouth is higher than the filter, it is relative in the filter it has the anti-punching a hole that the slope of facing upwards set up to open on the lateral wall of filtration pore, be provided with in the overflow water chamber and be used for to each the downthehole rainwater that lets in of recoil to will block up the recoil subassembly that the big tracts of land rubbish in the filtration pore was washed out.
Through adopting above-mentioned technical scheme, after the filtration pore is blockked up, the filter top rainwater is amassed more, and until overflowing to in the overflow water chamber, under the control of recoil subassembly, the rainwater in the overflow water chamber makes it spout from the recoil downthehole through the difference in height to recoil large tracts of land rubbish out the filtration pore, realized the mediation to the filtration pore with this, ensure that the rainwater on the road surface can in time discharge underground drainage pipe, have the effect of environmental protection.
Optionally, a plurality of water inlet holes are formed in the filter plate, one water inlet hole corresponds to and is communicated with one reverse punching hole, and the water inlet hole is communicated with the overflow water chamber; each filter hole is arranged around the axis of the filter plate along the direction far away from the axis of the filter plate, the corresponding position of the water inlet hole, which is communicated with the overflow water chamber, is circumferentially arranged around the axis of the filter plate, the backflushing component comprises a lifting arc plate arranged in the overflow water chamber, the lifting arc plate is tightly attached to the outer wall of the downcomer and is in vertical sliding fit with the outer wall of the downcomer, a floating ball is arranged on the lifting arc plate, a plurality of water inlets which are in one-to-one correspondence with the water inlet holes are arranged on the lifting arc plate, the plurality of water inlets are arranged along the arc direction of the lifting arc plate and gradually rise in height, and the height of the water inlet corresponding to the filter hole, which is closest to the axis of the filter plate, and is communicated with the water inlet hole is the highest.
Through adopting above-mentioned technical scheme, spill over to the back in the overflow water chamber from the downcomer when the rainwater, the water level of the indoor rainwater of overflow water risees gradually, and the floater receives the effect of buoyancy and buoyancy crescent in the rainwater to this drives the ascending and descending arc board and upwards moves gradually. Because each water inlet has the difference in height, therefore the recoil subassembly can control when the rainwater realizes the recoil to the large tracts of land rubbish that blocks up in the filtration pore, and the recoil action is being carried out in the recoil hole that only one filtration pore corresponds at the same time. The water pressure when rainwater in the overflow water chamber flows into the water inlet hole is the maximum water pressure of the time of the rainwater in the backflushing hole, so that the rainwater in the backflushing hole can backflush large-area garbage out of the filtering hole by the maximum stiffness of the time of the rainwater in the backflushing hole, and the backflushing effect on the large-area garbage is improved
Optionally, a guide groove is vertically formed in the outer side wall of the downcomer, and a guide block which slides in the guide groove is arranged on the lifting arc plate.
Through adopting above-mentioned technical scheme, guide block and guide way cooperation to the elevating movement of going up and down the arc board has played the effect of direction, is favorable to improving the stability of going up and down the arc board.
Optionally, a filter screen is arranged on the inner wall of the lower water pipe at a position corresponding to the overflow port.
By adopting the technical scheme, the filter screen has the function of intercepting large-area garbage, and the possibility that the large-area garbage enters the overflow water chamber is reduced.
Optionally, a rotating pipe with an open bottom is vertically rotated on the filter plate and penetrates through the rotating pipe, a plurality of water leakage holes communicated with the inner cavity of the rotating pipe are further formed in the pipe body above the filter plate, a spiral impeller is fixedly arranged in the rotating pipe, a hollow accommodating net box is arranged on the outer side wall of the rotating pipe, and a feed inlet is formed in one side, opposite to the rotating direction of the rotating pipe, of the accommodating net box and a baffle is hinged to the accommodating net box.
Through adopting above-mentioned technical scheme, when the rainwater was long-pending when more in the top of filter, the rainwater caused the impact through leaking in the hole inflow pivot pipe and to the helical impeller, and helical impeller atress drives through the bull stick and accomodates the box with a net rotation, accomodate box with a net pivoted in-process, the baffle receives the effect of rainwater to accomodating the box with a net internal rotation to this large tracts of land rubbish gets into through the feed inlet and accomodates in the box with a net. After the filtration pore is dredged, the rainwater that flows into in the runner through the hole that leaks reduces gradually, and the runner stall gradually, the baffle seals the feed inlet again to this makes large tracts of land rubbish restrict in accomodating the box with a net. Through the cooperation of the recoil assembly and the storage net cage, the restraint on large-area garbage is realized, and the possibility that the large-area garbage repeatedly blocks the filter holes is reduced.
Optionally, one side of the containing net box, which is opposite to the feed inlet, is provided with a shovel plate, and the shovel plate is located below the feed inlet and abuts against the filter plate.
Through adopting above-mentioned technical scheme, accomodate the box with a net and can drive the shovel board and move together, the shovel board can shovel and move large tracts of land rubbish to this makes large tracts of land rubbish can get into more easily accomodate in the box with a net.
Optionally, the feed inlet is close to the filter plate.
Through adopting above-mentioned technical scheme to this can be accomodate in accomodating the box with a net by the very first time after the filtration pore is washed out to large tracts of land rubbish.
Optionally, the rotating pipe is slidably arranged on the filter plate in a penetrating manner, a limiting ring is further arranged on the outer side wall of the rotating pipe, and the limiting ring is located above the filter plate.
Through adopting above-mentioned technical scheme, municipal workers can put forward the storage net box downcomer through the commentaries on classics pipe, and then conveniently clear away the large tracts of land rubbish in the storage net box.
In summary, the present application includes at least one of the following beneficial technical effects:
1. when the filter holes are blocked, rainwater above the filter plate is accumulated more and more until the rainwater overflows into the overflow water chamber, under the control of the backflushing assembly, the rainwater in the overflow water chamber is sprayed out of the backflushing holes through the height difference, so that large-area garbage is backflushed out of the filter holes, the filter holes are dredged, the rainwater on the road surface can be ensured to be timely discharged into an underground drainage pipeline, and the environment-friendly effect is achieved;
2. the recoil component is matched with the storage net cage, so that the restraint on large-area garbage is realized, and the possibility that the large-area garbage repeatedly blocks the filter holes is reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
Fig. 2 is a sectional view showing the positional relationship among the branch pipes, the sewer pipe and the overflow water chamber in the embodiment of the present application.
Fig. 3 is a sectional view showing a positional relationship between the filter holes and the back flush holes in the embodiment of the present application.
FIG. 4 is a sectional view of the positional relationship between the water inlet holes and the filter holes in the embodiment of the present application.
Fig. 5 is an exploded view showing the positional relationship among the overflow water chamber, the lifting arc plate, and the float ball in the embodiment of the present application.
Fig. 6 is a schematic structural diagram of a positional relationship among the storage net cage, the shovel plate and the baffle in the embodiment of the present application.
Description of reference numerals: 1. a sewer pipe; 101. a guide groove; 102. an overflow port; 2. a filter plate; 201. a filtration pore; 202. performing reverse punching; 203. a water inlet hole; 3. an overflow water chamber; 41. a lifting arc plate; 410. a water inlet; 42. a floating ball; 5. a guide block; 6. a filter screen; 7. rotating the pipe; 701. a water leakage hole; 8. a helical impeller; 9. storing the net cage; 901. a feed inlet; 10. a baffle plate; 11. a shovel plate; 12. a limiting ring; 13. a water collecting bucket.
Detailed Description
The present application is described in further detail below with reference to figures 1-6.
The embodiment of the application discloses municipal rainwater prevents stifled type discharge system.
Referring to fig. 1 and 2, the municipal rainwater anti-blocking type drainage system comprises a sewer pipe 1 and a filter plate 2 horizontally erected in the sewer pipe 1, wherein the cross section of the filter plate 2 is circularly arranged and is tightly attached to the inner wall of the sewer pipe 1.
Circumference is provided with a plurality of punch combination on the filter 2, and every punch combination includes that a plurality of is along keeping away from the filtration hole 201 that 2 axis directions of filter arranged, and filtration hole 201 is vertical and be the through-hole. After entering the sewer pipe 1, the rainwater flows into the underground drainage pipeline through the filtering holes 201 on the filtering plate 2.
Referring to fig. 1, since the outer sidewall of the downcomer 1 is spaced apart from the sidewall of the sewer well, the water collecting bucket 13 is integrally formed at the top of the downcomer 1, and the water collecting bucket 13 is closely attached to the sidewall of the sewer well, thereby ensuring that rainwater can flow into the downcomer 1.
Referring to fig. 1 and 2, a plurality of overflow water chambers 3 which are hollow inside and are hermetically arranged are fixedly connected to the side wall of the downcomer 1, the plurality of overflow water chambers 3 are circumferentially arranged around the axis of the downcomer 1, and one overflow water chamber 3 corresponds to one hole group.
Referring to fig. 1 and 2, the side wall of the downcomer 1 is further provided with a plurality of overflow ports 102, one overflow port 102 corresponds to and communicates with one overflow water chamber 3, and the height of the overflow port 102 is higher than that of the filter plate 2.
After the filtering holes 201 on the filtering plate 2 are blocked, the more the rainwater is accumulated above the filtering plate 2 until the rainwater overflows from the sewer pipe 1 into each overflow water chamber 3.
The filter screen 6 is bolted on the inner wall of the downcomer 1 at the position corresponding to each overflow port 102, and the filter screen 6 can intercept large-area garbage, so that the possibility that the large-area garbage enters the overflow water chamber 3 is reduced.
Referring to fig. 2, 3 and 4, for example, a hole group is provided, and the side wall of each filtering hole 201 in the filtering plate 2 opposite to the hole group is provided with a back-flushing hole 202, and the back-flushing hole 202 is inclined upward. A plurality of water inlet holes 203 are also formed in the filter plate 2, one water inlet hole 203 corresponds to and is communicated with one reverse punching hole 202, and the water inlet hole 203 is communicated with the corresponding overflow water chamber 3.
Each multi-filter hole is arranged along the direction far away from the axis of the filter plate 2, and the corresponding communication part of the water inlet hole 203 and the overflow water chamber 3 bypasses the axis of the filter plate 2 in the circumferential direction.
Referring to fig. 2, 3 and 4, a backflushing assembly is provided in the overflow water chamber 3, which is configured to allow rainwater to flow into the corresponding backflushing hole 202 through each water inlet hole 203, so as to flush out large-area garbage blocked in the filtering hole 201.
Referring to fig. 4 and 5, the backflushing assembly includes a lifting arc plate 41 located in the overflow water chamber 3, the lifting arc plate 41 is closely attached to and slidably fitted with the outer side wall of the downcomer 1, and a floating ball 42 is adhered to the lifting arc plate 41.
The lifting arc plate 41 is provided with a plurality of water inlets 410 which are in one-to-one correspondence with the water inlet holes 203, the plurality of water inlets 410 are arranged along the arc direction of the lifting arc plate 41 and are gradually increased in height, a gap is reserved between every two vertically adjacent water inlets 410, and the height of the water inlet 410 corresponding to the water inlet hole 203 communicated with the nearest filter hole 201 from the axis of the filter plate 2 is the highest.
Referring to fig. 3, 4 and 5, after the rainwater overflows from the downcomer 1 into the overflow water chamber 3, the water level of the rainwater in the overflow water chamber 3 gradually rises, and the floating ball 42 is acted by the buoyancy in the rainwater and the buoyancy gradually increases, so as to drive the lifting arc plate 41 to gradually move upwards.
When the lifting arc plate 41 is lifted, the plurality of water inlets 410 of the lifting arc plate 41 sequentially introduce rainwater into the corresponding water inlet holes 203 and the recoil holes 202 along a direction from top to bottom. Along the direction of keeping away from 2 axes of filter, each backflush hole 202 that filters the correspondence of hole 201 backflushs out the rainwater in proper order to this rainwater can wash out the large tracts of land rubbish that blocks up in corresponding filtering the hole 201, and then has realized the mediation to filtering the hole 201, ensures that the rainwater on the road surface can in time discharge underground drainage pipeline in, has played the effect of environmental protection.
Referring to fig. 3, 4 and 5, it is known that if a plurality of water outlet holes are formed in a pipe along the length direction of the pipe, the strength of the liquid sprayed from the water outlet holes is different because the water pressure is lost when the fluid flows in the pipe, and the closer the water outlet hole is to the water inlet end of the pipe, the higher the strength of the liquid sprayed.
Aiming at the problems, the water inlets 410 of two vertically adjacent lifting arc plates 41 are spaced, so that when the backflushing assembly controls rainwater to backflush large-area garbage blocked in the filter holes 201, only one backflushing hole 202 corresponding to one filter hole 201 performs backflushing action at the same time.
Through the mode, when any one back-flushing hole 202 realizes back flushing, the water pressure when rainwater in the overflow water chamber 3 flows into the water inlet hole 203 is the maximum water pressure of the time of the rainwater, so that the rainwater in the back-flushing hole 202 can back flush large-area garbage out of the filtering hole 201 through the maximum stiffness of the time of the rainwater, and the back-flushing effect on the large-area garbage is further improved.
Referring to fig. 2, after the filtering holes 201 are dredged, the rainwater above the filtering plate 2 is gradually discharged into the underground drainage pipeline through the filtering holes 201, the water level of the rainwater in the overflow water chamber 3 gradually drops, and the lifting arc plate 41 gradually drops under the action of gravity.
Referring to fig. 5, a guide groove 101 is vertically formed on the outer side wall of the downcomer 1, a guide block 5 sliding in the guide groove 101 is fixedly connected to the lifting arc plate 41, and the cross sections of the guide block 5 and the guide groove 101 are both arranged in a dovetail shape. The guide block 5 is matched with the guide groove 101 to guide the lifting movement of the lifting arc plate 41.
Referring to fig. 3, the reverse punched holes 202 mainly serve to dredge the filtering holes 201, and do not restrict large-area garbage, so that the large-area garbage may repeatedly block the filtering holes 201.
Referring to fig. 2 and 6, for this, a rotating pipe 7 with an open bottom is vertically and rotatably arranged on the filter plate 2, a plurality of water leakage holes 701 communicated with the inner cavity of the rotating pipe 7 are further formed in the pipe body of the rotating pipe 7 above the filter plate 2, and a plurality of helical impellers 8 are fixedly arranged in the rotating pipe 7 along the length direction of the rotating pipe.
The outer side wall of the rotating pipe 7 is fixedly connected with a hollow storage net box 9, and one side of the storage net box 9, which is opposite to the rotating direction of the rotating pipe 7, is provided with a feed inlet 901 and is hinged with a baffle plate 10.
Referring to fig. 2 and 6, in the process of backflushing the filtering holes 201 through the backflushing holes 202, rainwater flows into the rotating pipe 7 through the water leakage holes 701 and impacts the helical impeller 8, and the helical impeller 8 is stressed to drive the containing net cage 9 to rotate through the rotating pipe 7.
When the storage net box 9 rotates, the baffle 10 rotates under the action of a reaction force, so that the feed port 901 is opened, and large-area garbage in rainwater above the filter plate 2 can be filtered into the storage net box 9.
After filtering hole 201 is dredged, the rainwater that flows into in the runner pipe 7 through the hole 701 that leaks reduces gradually, and the runner pipe 7 stall gradually, and the reaction force of rainwater to baffle 10 disappears, leads to baffle 10 to seal feed inlet 901 again to this makes large tracts of land rubbish restrict in accomodate box with a net 9.
Through the cooperation of the above-mentioned reverse punching hole 202 and the storage net cage 9, the large area garbage blocking the filter holes 201 is stored in the storage net cage 9, so that the restraint of the large area garbage is realized, the possibility that the large area garbage blocks the filter holes 201 repeatedly is reduced, and the improvement of the drainage effect on the rainwater on the urban road surface is facilitated.
Referring to fig. 2 and 6, one side fixedly connected with shovel plate 11 of storage net box 9 relative to feed inlet 901, shovel plate 11 are located the below of feed inlet 901 and contradict on filter 2, and storage net box 9 can drive shovel plate 11 and move, and then shovels the large tracts of land rubbish on the filter 2, is favorable to improving storage net box 9 and to the effect of accomodating of large tracts of land rubbish.
Referring to fig. 2 and 6, the feeding hole 901 is close to the filter plate 2, so that the large-area garbage can be stored in the storage net cage 9 at the first time after being backflushed out of the filter hole 201 from the backflushing hole 202.
Referring to fig. 2 and 6, the rotating tube 7 is slidably disposed on the filter plate 2, a limiting ring 12 is further fixedly disposed on an outer side wall of the rotating tube 7, and the limiting ring 12 is located above the filter plate 2. The limiting ring 12 limits the rotating pipe 7, municipal workers can put the storage net box 9 out of the sewer pipe 1 through the rotating pipe 7, and large-area garbage stored in the storage net box 9 can be conveniently removed.
The implementation principle of the municipal rainwater anti-blocking type drainage system in the embodiment of the application is as follows:
when the filter holes 201 are blocked, the rainwater is accumulated more and more above the filter plate 2.
On the one hand, the rainwater overflows to the overflow water chamber 3 from the downcomer 1, and the water level of rainwater risees gradually in the overflow water chamber 3, and the floater 42 receives the effect of buoyancy and buoyancy crescent in the rainwater to this drives lift arc board 41 upward movement gradually, and in-process that lift arc board 41 rises, a plurality of water inlets 410 on the lift arc board 41 let in the rainwater to corresponding inlet opening 203 and recoil hole 202 in proper order along the direction from last down. Along the direction of keeping away from 2 axes of filter, the rainwater is recoil out in proper order to each recoil hole 202 that filters the hole 201 and correspond to this rainwater can be washed out the large tracts of land rubbish that blocks up in corresponding filtration hole 201, and then has realized the mediation to filtering hole 201.
On the other hand, the rainwater still flows into in the runner 7 through the hole 701 that leaks to lead to the fact the impact to spiral impeller 8, spiral impeller 8 atress drives through the bull stick and accomodates the net cage 9 and rotate, and baffle 10 receives the effort of rainwater to take place to rotate, makes feed inlet 901 open with this, and then makes the large tracts of land rubbish in the rainwater above filter 2 can be filtered to accomodating in the net cage 9.
When the filtering holes 201 are dredged and certain water discharge is kept, the rainwater level in the overflow water chamber 3 is gradually reduced, and the lifting arc plate 41 is gradually reduced to a low position. In addition, the rainwater flowing into the rotating pipe 7 through the water leakage hole 701 is gradually reduced, the rotating pipe 7 is gradually stopped, the baffle plate 10 closes the feed inlet 901 again, and large-area garbage is restrained in the containing net box 9.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. The utility model provides a municipal administration rainwater prevents stifled type discharge system, includes downcomer (1) and sets up filter (2) in downcomer (1), a plurality of filtration pores (201), its characterized in that have been seted up along the direction of keeping away from its axis on filter (2): the outer side wall of the sewer pipe (1) is provided with an overflow water chamber (3) with a hollow interior, the side wall of the sewer pipe (1) is provided with an overflow port (102) communicated with the overflow water chamber (3), the overflow port (102) is higher than the filter plate (2), the side wall of the filter plate (2) is provided with a counter-punched hole (202) which is obliquely arranged upwards, the overflow water chamber (3) is internally provided with a counter-punched hole assembly which is used for leading rainwater into the counter-punched hole (202) and blocking the filter hole (201) and flushing large-area garbage.
2. The municipal rainwater anti-blocking type drainage system according to claim 1, wherein: a plurality of water inlet holes (203) are formed in the filter plate (2), one water inlet hole (203) corresponds to one reverse punching hole (202) and is communicated with the reverse punching hole, and the water inlet hole (203) is communicated with the overflow water chamber (3); each filter hole (201) is along the direction far away from the axis of the filter plate (2), the part corresponding to the communication part of the water inlet hole (203) and the overflow water chamber (3) is arranged around the axial line of the filter plate (2) in the circumferential direction, the backflushing assembly comprises a lifting arc plate (41) arranged in the overflow water chamber (3), the lifting arc plate (41) is tightly attached to the outer wall of the downcomer (1) and is in vertical sliding fit with the downcomer, a floating ball (42) is arranged on the lifting arc plate (41), a plurality of water inlets (410) which are in one-to-one correspondence with the water inlet holes (203) are arranged on the lifting arc plate (41), the plurality of water inlets (410) are arranged along the arc direction of the lifting arc plate (41) and the height of the water inlets is gradually increased, the height of the water inlet (410) corresponding to the water inlet hole (203) communicated with the filter hole (201) closest to the axis of the filter plate (2) is the highest.
3. The municipal rainwater anti-blocking type drainage system according to claim 2, wherein: a guide groove (101) is vertically formed in the outer side wall of the sewer pipe (1), and a guide block (5) which slides in the guide groove (101) is arranged on the lifting arc plate (41).
4. The municipal rainwater anti-blocking type drainage system according to claim 1, wherein: a filter screen (6) is arranged on the inner wall of the downcomer (1) corresponding to the overflow port (102).
5. The municipal rainwater anti-blocking type drainage system according to claim 1, wherein: the novel filter plate is characterized in that a rotating pipe (7) with an open bottom end is arranged on the filter plate (2) in a penetrating mode in a vertical rotating mode, the rotating pipe (7) is located on a pipe body above the filter plate (2) and is provided with a plurality of water leakage holes (701) communicated with an inner cavity of the rotating pipe, a spiral impeller (8) is fixedly arranged in the rotating pipe (7), a hollow storage net box (9) is arranged on the outer side wall of the rotating pipe (7), the storage net box (9) is opposite to one side of the rotating direction of the rotating pipe (7), a feeding hole (901) is formed in the opening mode, and a baffle (10) is hinged to the opening mode.
6. The municipal rainwater anti-blocking type drainage system according to claim 5, wherein: one side, opposite to the feeding hole (901), of the containing net box (9) is provided with a shovel plate (11), and the shovel plate (11) is located below the feeding hole (901) and abuts against the filter plate (2).
7. The municipal rainwater anti-blocking type drainage system according to claim 5, wherein: the feed inlet (901) is close to the filter plate (2).
8. The municipal rainwater anti-blocking type drainage system according to claim 5, wherein: the rotating pipe (7) penetrates through the filter plate (2) in a sliding mode, a limiting ring (12) is further arranged on the outer side wall of the rotating pipe (7), and the limiting ring (12) is located above the filter plate (2).
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CN111609729A (en) * 2020-06-16 2020-09-01 溧阳市金土地节能科技有限公司 Efficient durable ultralow-noise counter-flow type intelligent electricity-free cooling tower
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Denomination of invention: Municipal rainwater anti blocking discharge system

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