CN212127904U

CN212127904U - Rainwater purification and collection system capable of automatically flushing

Info

Publication number: CN212127904U
Application number: CN202020494455.4U
Authority: CN
Inventors: 刘云帆
Original assignee: China Planning Institute Beijing Planning And Design Co
Current assignee: China Planning Institute Beijing Planning And Design Co
Priority date: 2020-04-08
Filing date: 2020-04-08
Publication date: 2020-12-11
Anticipated expiration: 2030-04-08

Abstract

The utility model discloses a rainwater that can wash automatically purifies collecting system belongs to the rainwater and collects the field. The device comprises a rain drop pipe, a main water inlet pipe, a sedimentation tank, a water distribution tank water outlet pipe, a water distribution vertical pipe, a water distribution pipe, a filter layer, a water purification tank and a water purification tank water outlet pipe which are connected in sequence. Siphon tedge, water distribution tank outlet pipe and water distribution riser become the tee bend tubular construction, the top of siphon tedge is connected with the top of siphon downcomer and the top of siphon auxiliary line, the top of siphon downcomer is higher than the top of siphon auxiliary line, the bottom of siphon downcomer and siphon auxiliary line is located the water seal well, the top of siphon tedge still destroys the top of pipe with the siphon and is connected, the siphon destroys the pipe and the siphon auxiliary line passes through the exhaust tube is connected, the siphon destroys the fill setting and destroys the bottom of pipe and be located the water purification incasement at the siphon. The utility model discloses can go on automatically under the condition that does not need artifical the maintenance almost, realize the collection, the purification of rainwater to can realize effectual back flush automatically.

Description

Rainwater purification and collection system capable of automatically flushing

Technical Field

The utility model relates to a rainwater field of collecting especially indicates a rainwater that can wash automatically purifies collecting system.

Background

Along with the rapid development of the urbanization process, the scale and development strength of urban construction are continuously increased, so that the urban underlying surface is excessively hardened. The water impervious area is greatly increased, the original hydrological characteristics of a city are changed, the city loses the self-adjusting 'sponge' function, the 'waterlogging and drought after rain' phenomena occur, and in addition, the extreme weather events are obviously increased under the influence of global climate change and the 'heat island effect' of the city, so that the water safety problem is particularly remarkable. Meanwhile, the natural ecological background of the urban ecological system is damaged by urban excessive hardening, and a series of urban diseases such as water ecological damage, water environment pollution, water resource shortage and the like are caused.

The collection, regulation and storage, the purification treatment of roofing rainwater can effectively reduce the pollution of initial stage rainwater to the urban water, and the regulation to the rainwater can reduce urban drainage pipe network's peak drainage pressure simultaneously, reduces urban waterlogging risk. Meanwhile, the rainwater can be recycled after purification, and is applied to washing the ground, cleaning vehicles, watering green lands and the like.

The existing rainwater collecting and purifying technology mostly adopts the following processes: rainwater enters a rainwater collecting pool after primary runoff discarding and pre-filtering, then enters a reactor after passing through a quartz sand filter, coagulant is added into the reactor through a coagulation dosing device to filter the rainwater, and finally devices such as a disinfection device, a dosing device and the like are assisted, and the treated rainwater is collected and discharged into a clean water tank to be stored for later use.

The general initial investment of processing apparatus is great in current rainwater collection, and electric power and medicament consumption are great, and the device is complicated and need the professional to maintain the maintenance, especially to the processing of the jam problem of rainwater filtration module, if not handle, then seriously reduce the result of use of rainwater filtration facility. If the corresponding back washing water pump is equipped or the filter module is frequently replaced, the maintenance and operation cost is increased. For rainwater collection facilities applied to general communities or rural residences, high maintenance costs and complicated management means are obviously impractical. In addition, the equipment such as a coagulation dosing device, a reactor and a quartz sand filter has large volume and needs to occupy a certain area of equipment room. And is not convenient for application in the community.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a rainwater that can wash automatically purifies collecting system, the utility model discloses can go on automatically under the condition that does not need artifical the maintenance almost, realize the collection, the purification of rainwater to can realize effectual back flush automatically.

The utility model provides a technical scheme as follows:

the utility model provides a rainwater that can wash automatically purifies collecting system, includes that the rain falls pipe, total inlet tube, sedimentation tank, distribution tank outlet pipe, water distribution riser, distribution pipe, filter layer, water purification case outlet pipe, siphon tedge, siphon downcomer, water seal well, siphon auxiliary pipe, siphon destroy fill, siphon destroy pipe and exhaust tube, wherein:

the rainwater falling pipe, the main water inlet pipe, the sedimentation tank, the water distribution tank water outlet pipe, the water distribution vertical pipe, the water distribution pipe, the filter layer, the purified water tank and the purified water tank water outlet pipe are sequentially connected, the height of the top end of the rainwater falling pipe is higher than that of the top end of the main water inlet pipe, the upper end of the water distribution vertical pipe is connected with the water distribution tank water outlet pipe, the lower end of the water distribution vertical pipe is connected with the horizontal water distribution pipe, a water distribution hole is formed in the top of the water distribution pipe, the filter layer is arranged above the water;

the bottom end of the siphon ascending pipe is connected with the water distribution tank water outlet pipe and the water distribution vertical pipe, the siphon ascending pipe, the water distribution tank water outlet pipe and the water distribution vertical pipe form a three-way pipe structure, the top end of the siphon ascending pipe is connected with the top end of the siphon descending pipe and the top end of the siphon auxiliary pipe, the top end of the siphon descending pipe is higher than the top end of the siphon auxiliary pipe, the bottom ends of the siphon descending pipe and the siphon auxiliary pipe are located in the water seal well, the top end of the siphon ascending pipe is further connected with the top end of the siphon damage pipe, the siphon damage pipe is connected with the siphon auxiliary pipe through an air suction pipe, and the siphon damage bucket is arranged at the bottom end of the siphon damage pipe and located in the water purification tank.

Furthermore, the filter layer comprises a stainless steel filter screen positioned on the lower layer and an aerobic enzymatic ceramsite filter material positioned on the upper layer.

Furthermore, the aerobic enzymatic ceramsite filter material is arranged in a steel wire net bag, and a handle is arranged on the steel wire net bag.

Further, the aerobic enzymatic ceramsite filter material is arranged in a movable steel wire cover, and the movable steel wire cover is connected with a driving device; and a water flow indicator is arranged on the water distribution vertical pipe, and the water flow indicator and the driving device are connected with the controller.

Furthermore, the water distribution pipe is positioned in a water distribution and sludge discharge area at the bottom of the water purification tank, the water distribution pipe comprises a water distribution main pipe and a plurality of water distribution branch pipes connected to the water distribution main pipe, and the water distribution main pipe and the water distribution branch pipes are laid in a groove of a bottom plate of the water purification tank.

Furthermore, a flow discarding device is arranged at the bottom of the rain drop pipe, and a dosing device and a pipe mixer are arranged on the main water inlet pipe.

Furthermore, a clean water tank is arranged below the clean water tank, the top end of the water outlet pipe of the clean water tank is connected with the clean water tank, and the bottom end of the water outlet pipe of the clean water tank is connected with the clean water tank.

Furthermore, the upper part of the side wall of the water purifying tank is provided with an effluent weir, and the top end of the water outlet pipe of the water purifying tank is arranged at the effluent weir.

Furthermore, emptying valves are arranged at the bottoms of the purified water tank and the purified water tank, and a water level control automatic water replenishing valve is arranged in the water seal well.

The utility model discloses following beneficial effect has:

the utility model operates by means of gravity siphon, can utilize less investment, automatically perform under the condition of almost no need of manual maintenance, realize the collection and purification of rainwater on the roof of the high-density multi-storey residential community, reduce the drainage pressure of a rainfall peak pipe network, and achieve the functions of effectively removing most suspended matters and reducing turbidity; can automatically realize effective back washing and can be continuously used. The system has the advantages of less land occupation and lower maintenance cost, and is suitable for common multi-storey residential communities. The purified water can be used for greening watering and the like, so that the resources are saved, and the water is low-carbon and environment-friendly.

Drawings

FIG. 1 is a schematic diagram of the filtering stage of the rainwater purification and collection system with automatic flushing function of the present invention;

FIG. 2 is a schematic diagram of the back washing stage of the rainwater purification and collection system with automatic flushing function of the present invention;

FIG. 3 is a cross-sectional view of a water distribution pipe;

FIG. 4 is an enlarged view at point A;

FIG. 5 is a schematic view of an aerobic enzymatic ceramsite filter material with a driving device;

fig. 6 is a schematic view of a water distribution pipe.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments.

The embodiment of the utility model provides a rainwater that can wash automatically purifies collecting system, as shown in fig. 1-6, including raindrop pipe 1, total inlet tube 2, sedimentation tank 3, distribution tank 4, distribution tank outlet pipe 5, distribution riser 6, distribution pipe 7, filter layer 8, clean water tank 9, clean water tank outlet pipe 10, siphon tedge 11, siphon downcomer 12, water-sealed well 13, siphon auxiliary pipe 14, siphon destroy fill 15, siphon destroy pipe 16 and exhaust tube 17, wherein:

including the rain fall pipe 1, total inlet tube 2, sedimentation tank 3, water distribution tank 4, water distribution tank outlet pipe 5, water distribution riser 6, water distribution pipe 7, filter layer 8, water purification case 9 and water purification case outlet pipe 10 connect gradually, the height that highly is higher than 2 tops of total inlet tube on rain fall pipe top 1, the upper end and the water distribution tank outlet pipe 5 of water distribution riser 6 are connected, the lower extreme is connected with horizontally water distribution pipe 7, water distribution hole 18 has been seted up at water distribution pipe 7 top, filter layer 8 sets up in water distribution pipe 7 top, water purification case 9 sets up in filter layer 8 top.

The bottom end of the siphon ascending pipe 11 is connected with the water distribution tank water outlet pipe 5 and the water distribution vertical pipe 6, the siphon ascending pipe 11, the water distribution tank water outlet pipe 5 and the water distribution vertical pipe 6 form a three-way pipe structure 19, the top end of the siphon ascending pipe 11 is connected with the top end of the siphon descending pipe 12 and the top end of the siphon auxiliary pipe 14, the top end of the siphon descending pipe 12 is higher than the top end of the siphon auxiliary pipe 14, the bottom ends of the siphon descending pipe 12 and the siphon auxiliary pipe 14 are located in the water seal well 13, the top end of the siphon ascending pipe 11 is also connected with the top end of the siphon damage pipe 16, the siphon damage pipe 16 is connected with the siphon auxiliary pipe 14 through the air suction pipe 17, and the siphon damage bucket 15 is arranged at the bottom end of the siphon.

Roof rainwater collection and utilization equipment in a common community aims at solving the problems of large turbidity and high pollution content of roof rainwater and performs appropriate purification treatment. And the operation that needs human intervention should be reduced especially. Otherwise, the rainwater can not be recycled, and a large amount of manpower and material resources are wasted. Based on time, the utility model designs a rainwater that can wash automatically purifies collecting system, the utility model discloses when using, including filtration stage and back flush stage.

And (3) a filtering stage: as shown in fig. 1, roof rainwater is collected and enters a rainwater drop pipe, rainwater in the rainwater drop pipe is connected to a main water inlet pipe by using the height potential energy of the roof rainwater, then large particles are precipitated in a sedimentation tank and flow into a water distribution tank, and water discharged from the bottom of the water distribution tank enters a water distribution vertical pipe through a water distribution tank water outlet pipe and then flows downwards into a water distribution pipe. The water distribution pipe is located water purification tank bottom, and rivers upwards flow out by the water distribution hole on the water distribution pipe, receive the pressure that water distribution tank to water distribution pipe difference in height produced to act on, rivers are upwards pushed into the filter layer, effectively get rid of the particulate matter and the suspended solid in the rain, reduce the colourity, the turbidity of rainwater, and the rainwater after the filtration gets into water purification tank, then discharges through water purification tank outlet pipe and uses. The filtered rainwater can be used for sprinkling roads, greening, washing vehicles and the like.

A backwashing stage: as shown in fig. 2, as the filtering time is prolonged, the filtering module layer is blocked, the resistance head is increased, the water level in the siphon ascending pipe is raised gradually, after the water level is raised to the upper end pipe orifice of the siphon auxiliary pipe, the accumulated air at the top end of the siphon ascending pipe is sucked by the water flow which rapidly descends in the siphon auxiliary pipe, the negative pressure is formed at the point a, and the siphon formation is accelerated. At the moment, the water body in the water seal well is sucked under the influence of negative pressure in the siphon descending pipe, air in the siphon destroying pipe is pumped out under the suction action of the negative pressure, and after the siphon ascending pipe is combined with the two water flows in the siphon descending pipe, the siphon action is formed, and back washing is started.

At the moment, the water level in the water purification tank drops, the water flow is subjected to the dual actions of gravity and siphon suction force, the filter layer is back-flushed, and sediment and sludge in the filter layer are reversely sucked out by the water distribution pipe. The sludge water is discharged into the water seal well through the water distribution vertical pipe, the siphon ascending pipe and the siphon descending pipe, and finally discharged into the municipal drainage pipeline. When the water level in the water purification tank drops below the siphon breaking bucket, the siphon breaking at the point A is broken because the siphon breaking bucket sucks air, and the backwashing is finished. And after the back flushing is finished, automatically entering a filtering stage, and circulating in such a way.

The filtering layer 8 of the utility model comprises a stainless steel filtering net 32 positioned at the lower layer and an aerobic enzymatic ceramsite filtering material 20 positioned at the upper layer.

The stainless steel filter screen can intercept larger suspended matters and particles, the particles are stopped on the filter layer after being intercepted, and are discharged after being backflushed. An aerobic enzymatic ceramsite filter material (with the particle size of 10-15mm) is placed on the upper layer of the stainless steel filter screen, and automatically floats upwards in water due to the low density of the ceramsite filler, so that the turbidity of inlet water is removed by the enzymatic ceramsite filler through physical screening, and in addition, a small amount of biomembranes which can grow on the surface of the filter material have a certain effect of removing organic matters and turbidity due to the high oxygen content in rainwater.

The aerobic enzymatic ceramsite filter material 20 can be arranged in a steel wire net bag, the steel wire net can effectively prevent the filter material from over-expansion, and the steel wire net bag is provided with a handle, so that manual flushing and replacement are facilitated.

The aerobic enzymatic ceramsite filter material 20 can also be arranged in a movable steel wire cover 21, and the movable steel wire cover 21 is connected with a driving device 22; a water flow indicator 23 is arranged on the water distribution stand pipe 6, and the water flow indicator 23 and the driving device 22 are connected with a controller, as shown in fig. 5.

The utility model discloses at water distribution riser department installation rivers indicator, at water purification case side wall installation liftable drive arrangement (for example gear and slide rail etc.), through portable steel wire cover parcel enzymatic filter material, when the back flush begins, rivers trun into upwards by truning to downwards, and rivers indicator signals of telecommunication, and control drive arrangement rotates and rises, and it rises to follow the slide rail pulling and remove the steel wire cover. The ceramsite filter material is smaller than water in density, continuously floats upwards, and quickly shakes off adhered suspended matters in water flow flushing and mutual collision. After the washing is finished, the water flow at the position of the water distribution vertical pipe is changed into descending, the water flow indicator sends a signal to control the driving device to descend, the filter material is compressed, and the filtering effect is guaranteed.

Further, the water distribution pipe 7 is located in a water distribution and sludge discharge area 24 at the bottom of the water purification tank 9, the water distribution pipe 7 comprises a water distribution main pipe 25 and a plurality of water distribution branch pipes 26 connected to the water distribution main pipe 25, and the water distribution main pipe 25 and the water distribution branch pipes 26 are laid in grooves of the bottom plate of the water purification tank, as shown in fig. 6.

During filtering, particles are intercepted and then stay in the water distribution and sludge discharge area, during back flushing, sediment and sludge in the water distribution and sludge discharge area are sucked out reversely by the water distribution pipe, and the water distribution pipe is arranged in a groove of a bottom plate of the water purification tank, so that the sediment suction effect is effectively improved.

The bottom of the rain drop pipe 1 is provided with a flow discarding device 27 for discarding rainwater with larger turbidity at the early stage of rainfall, and the main water inlet pipe 2 is provided with a dosing device 28 and a pipe mixer for dosing coagulant to realize better filtering effect.

A clean water tank 29 is arranged below the clean water tank 9, the top end of the water outlet pipe 10 of the clean water tank is connected with the clean water tank 9, and the bottom end of the water outlet pipe is connected with the clean water tank 29. And a disinfectant feeding facility can be added in the clear water tank to prevent bacteria from breeding and increase the disinfection effect.

The upper part of the side wall of the clean water tank 9 is provided with an effluent weir 30, and the top end of the water outlet pipe 10 of the clean water tank is arranged at the effluent weir 30.

During filtering, filtered rainwater passes through the filter material layer in an upward flow mode and enters the water purifying tank, and the purified water is discharged into the clean water tank through the water outlet pipe of the water purifying tank after reaching the water outlet weir to be discharged.

During back flushing, the back flushing time is determined by the highest water level of the water outlet weir in the water purifying tank to the water level of the siphon breaking bucket. Different parameters are selected according to different filter material compositions, the washing strength is not less than 4-5L/square meter per second theoretically, and the washing time is more than 3-5min so as to play a role in effective washing.

Emptying valves are arranged at the bottoms of the water purifying tank 9 and the water purifying tank 29, and the water purifying tank is emptied in time after rainfall, so that air can be introduced conveniently, and aerobic biological reaction conditions on the filter material can be maintained. The water seal well 13 is internally provided with a water level control automatic water replenishing valve 31 to ensure that the siphon downcomer is submerged by the water level for a long time.

The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a rainwater that can wash automatically purifies collecting system, its characterized in that, includes that the rain falls pipe, total inlet tube, sedimentation tank, distribution tank outlet pipe, water distribution riser, distribution pipe, filter layer, water purification case outlet pipe, siphon tedge, siphon downcomer, water-sealed well, siphon auxiliary line, siphon destroy fill, siphon destroy pipe and exhaust tube, wherein:

2. The automatically flushable stormwater purification collection system of claim 1, wherein the filter layer comprises a stainless steel filter screen at a lower layer and an aerobic enzymatic ceramsite filter material at an upper layer.

3. The automatic-flushing rainwater purification and collection system according to claim 2, wherein the aerobic enzymatic ceramsite filter material is arranged in a steel wire net bag, and a handle is arranged on the steel wire net bag.

4. The rainwater purification and collection system capable of automatically flushing according to claim 2, wherein the aerobic enzymatic ceramsite filter material is arranged in a movable steel wire cover, and the movable steel wire cover is connected with a driving device; and a water flow indicator is arranged on the water distribution vertical pipe, and the water flow indicator and the driving device are connected with the controller.

5. The rainwater purification and collection system capable of automatically flushing according to any one of claims 1 to 3, wherein the water distribution pipe is positioned in a water distribution and sludge discharge area at the bottom of the purified water tank, the water distribution pipe comprises a water distribution main pipe and a plurality of water distribution branch pipes connected to the water distribution main pipe, and the water distribution main pipe and the water distribution branch pipes are laid in a groove of a bottom plate of the purified water tank.

6. The rainwater purification and collection system capable of automatically flushing according to claim 5, wherein the bottom of the rainwater falling pipe is provided with a flow discarding device, and the water inlet manifold is provided with a chemical dosing device and a pipe mixer.

7. The automatic-flushing rainwater purification and collection system according to claim 6, wherein a clean water tank is arranged below the clean water tank, the top end of the outlet pipe of the clean water tank is connected with the clean water tank, and the bottom end of the outlet pipe of the clean water tank is connected with the clean water tank.

8. The self-flushing rainwater purification and collection system according to claim 7 wherein said upper portion of said side wall of said clean water tank is provided with an effluent weir, and the top end of said outlet pipe of said clean water tank is disposed at said effluent weir.

9. The automatic-flushing rainwater purification and collection system according to claim 8, wherein emptying valves are arranged at the bottoms of the clean water tank and the clean water tank, and a water level control automatic water replenishing valve is arranged in the water sealed well.