CN207429843U - A kind of low water damage dmp filter pond - Google Patents

Abstract

The utility model is related to a kind of low water damage dmp filter pond, the filtering ponds include well body, the cover board above well body, water inlet pipe and outlet pipe positioned at well body front and back end；Longitudinally disposed barricade inside well body；The support plate set between barricade and rear end well body, the barricade and support plate will be divided into left side for pre- decanting zone inside well body；Right upper portion is filtering area；Lower right side is decanting zone；The pre- decanting zone is connected with water inlet pipe；The filtering area is connected with outlet pipe；The barricade is provided with water-carrying groove from well body bottom surface, and upper end is provided with overflow launder from cover board；Filter medium is covered with above the support plate；Water hole is provided in the support plate.The low water damages dmp filter pond to the high treating effect of rainwater, can effectively reduce pollution of the pollutant to natural water.It is driven in processing procedure without exterior power, and does not influence normal flood passage.In addition, water damage is few in processing procedure.

Description

A low water loss rainwater filter pool

technical field

The utility model relates to a rainwater purification device, in particular to a low water loss rainwater filter pool.

Background technique

With the acceleration of urbanization, the impermeable area on the ground has increased significantly, and pollutants have gradually accumulated on these impermeable ground. When it rains, the rainwater washes the ground and the pollutants are washed into the rainwater runoff system to form rainwater runoff pollution. Rainwater runoff pollution is a kind of diffuse pollution. Pollutants enter natural water bodies and cause water pollution. The pollutants exist in the form of particulate matter, suspended matter, and floating matter, and contain toxic and harmful substances such as organic matter and heavy metals. Therefore, the process of urbanization and industrialization has led to increasingly serious water crisis and rain and flood hazards.

With the aggravation of water source crisis and rain and flood damage, it has become an important emerging topic to collect and utilize rainwater as water resources for comprehensive management. In terms of urban overall planning, most of the combined drainage systems used in the past have been restructured and changed to diversion or interception drainage systems. With the seriousness of urban air pollution and ground pollution, the pollution of rainwater runoff is becoming more and more serious, especially the initial rainwater with more pollutants. In some areas, the highest value of pollutant indicators in early rainwater is much higher than that of typical urban domestic sewage. Therefore, it is necessary to treat rainwater, especially initial rainwater.

At present, the collection and treatment of initial rainwater in my country is still in its infancy. The collection of initial rainwater is only to prevent it from being discharged into the water body to pollute the water quality. The filtration and purification treatment of initial rainwater is rarely considered, and most of it is directly discharged into the municipal domestic sewage pipe network. The concentration of pollutants contained in the initial rainwater is relatively high, especially the initial rainwater from the road. Direct discharge into the domestic sewage pipe network will bring a large load to the sewage plant.

Utility model content

In order to solve the above problems, the utility model provides a low water loss rainwater filter tank, the filter tank includes a well body, a cover plate located above the well body, a water inlet pipe and a water outlet pipe located on the opposite side wall of the well body; the inside of the well body The retaining wall arranged longitudinally; the support plate arranged between the retaining wall and the side wall where the water outlet pipe is located, the retaining wall and the support plate divide the well body into: pre-settling between the side wall where the water inlet pipe is located and the retaining wall area; between the retaining wall and the side wall where the outlet pipe is located, the filter area above the support plate and the settlement area below;

The pre-sedimentation zone communicates with the water inlet pipe; the filter zone communicates with the water outlet pipe;

The retaining wall is provided with a water tank from the bottom surface of the well body, and an overflow tank is opened from the cover plate at the upper end;

A filter medium is laid above the support plate; water holes are arranged on the support plate.

Further, a slag-retaining device is installed on the overflow tank and the water-passing tank; furthermore, the slag-retaining device may be a slag-retaining net.

Further, the lowermost end of the overflow tank is not lower than the filter medium; further, it is higher than the top of the filter medium.

Further, the upper end of the water passage is not higher than the lower end of the support plate; further, the upper end of the water passage is flush with the lower end of the support plate.

Further, there may be one or more water passage holes; when multiple water passage holes are provided, the water passage holes are arranged at intervals on the support plate.

Further, the filter medium is selected from one or more of fallen leaf compost, pumice, peat soil, perlite, zeolite, ceramsite, biological activated carbon or sand.

Further, the type or thickness of the filter medium can be set according to the rainwater treatment requirements.

Further, the horizontal heights of the water inlet pipe and the water outlet pipe may be the same or different, preferably both are the same height.

Further, the water outlet pipe is not lower than the filter medium; further, the bottom of the water outlet pipe is flush with the upper end of the filter medium.

Further, there are two or more manhole covers arranged on the cover plate.

Furthermore, the well cover can be installed on the cover plate above the pre-sedimentation area and the filter.

Further, the well body and the cover plate can be spliced on site after prefabrication.

In the low water loss rainwater filter tank of the present utility model, the pre-sedimentation zone can settle some large particles; the settlement zone can settle most of the particles; the filter device can filter the sewage and rainwater entering the filter zone to remove suspended solids, Floating matter, nitrogen, phosphorus and other pollutants are discharged after treatment; when the rainwater overflows to the filter area, the overflowing sewage and rainwater can be directly drained away.

Furthermore, setting up the slag blocking device can intercept large garbage, leaves and other pollutants in the rainwater; the design of the water outlet can ensure that the treated rainwater can be discharged in time; the design of the water inlet pipe and the water outlet pipe makes the water less damage.

The utility model also provides a road segmented rainwater treatment system, the system includes: a rainwater main pipe on a municipal road, one or more rainwater branch pipes connected with the rainwater main pipe, and one or more rainwater branch pipes are connected to the end of the rainwater branch pipe A plurality of rainwater outlets; it is characterized in that the system divides the rainwater main pipe and/or the rainwater branch pipe into sections, and sets the above-mentioned low water loss rainwater filter pool on each section of the rainwater main pipe and/or rainwater branch pipe.

Further, the segmentation is performed according to 50-1000m; further, the segmentation is performed according to 300-800m.

Further, the system can set one or more low water loss rainwater filter ponds connected in series or in parallel according to the treatment requirements and/or road conditions on each section of road.

Further, the water inlet pipes and outlet pipes at the front and rear ends of the well body of the low water loss rainwater filter pool communicate with the front and back (ie upstream and downstream) of the rainwater main pipe and/or rainwater branch pipes respectively.

Further, a rainwater separator can also be arranged in front of the low water loss rainwater filter pool on each section of the pipeline (that is, the water inlet direction of the filter pool).

Further, the rainwater separator is selected from one of rainwater particle filtering devices, floating object interception devices, hydraulic particle separation devices, filter frame rainwater pretreatment devices, primary rain cyclone separation wells, or hydrocyclone separators, etc. one or more species.

Further, other rainwater filters can also be arranged on each section of pipeline.

Further, other rainwater filters are selected from initial rainwater filters, multi-stage rainwater purification treatment equipment, biological filters, multi-stage rainwater biological treatment devices, high-efficiency rainwater filters, cylindrical filtration systems, or quick-installed multi-stage treatment One or more of rainwater filtration systems, etc.

Further, the rainwater separator and other rainwater filters can be installed one or more in series or in parallel according to the treatment requirements and/or road conditions on each section of road.

Further, a water filter bag and/or a water filter bucket are also arranged on the rainwater outlet.

Beneficial effect

1) The low water loss rainwater filter tank of the present invention has a good treatment effect on rainwater and can effectively reduce the pollution of pollutants to natural water bodies. No external power is required during the processing, and normal flood discharge is not affected.

2) The low water loss rainwater filter pool of the utility model can also be provided with the water inlet pipe and the rainwater pipe at the same height, so the water loss is small. In addition, the well body and cover plate of the low water loss rainwater filter pool of the utility model can be assembled on site after prefabrication, which can reduce the time for on-site installation and has high installation efficiency.

3) The segmented rainwater treatment system of the present utility model is simple to set up, and can realize segmental treatment of rainwater in the rainwater main pipe and/or rainwater branch pipe, with good treatment effect, and avoids pollutants such as particulate matter, suspended matter, floating matter, nitrogen, Phosphorus and other pollution to natural water bodies.

Description of drawings

Fig. 1 is the structural representation of the low water loss rainwater filter pool of embodiment 1 of the present utility model;

Fig. 2 is the structural representation of the rainwater treatment system of the road segment of the utility model embodiment 3;

Fig. 3 is the structural schematic diagram of the rainwater treatment system of the road segment of the utility model embodiment 4;

The meanings of the reference signs are as follows: well body 1, cover plate 2, water inlet pipe 3, water outlet pipe 4, pre-sedimentation area A, treatment area B, retaining wall 5, filtration area B-1, settlement area B-2, support plate 6. Water tank 7, overflow tank 8, slag blocking net 9, filter medium 10, water hole 11, manhole cover 12, municipal road R, rainwater main pipe C, rainwater branch pipe D, rainwater outlet 13, low water loss rainwater filtration Pool 14, hydrocyclone 15, cylinder filter system 16, filter bag 17, filter bucket 18.

Detailed ways

The rainwater filter described in the utility model is a rainwater purification device that removes fine particles, soluble inorganic substances, heavy metals and other pollutants in rainwater through the physical, chemical or biological action of the filter medium.

The rainwater separator described in the utility model is a rainwater treatment device mainly relying on physical effects such as screening and interception, gravity separation, centrifugal separation, etc. to separate and remove floating objects and particles in rainwater.

The rainwater particle filtering device described in the utility model can refer to the structure described in the patent document CN201510887353.2, preferably the specific structure of Example 1 of the specification.

The floating object interception device described in the present invention can refer to the structure described in the patent document CN201510884173.9, preferably the specific structure of Example 1 of the specification.

The hydraulic particle separation device described in the utility model can refer to the structure described in the patent document CN201510881197.9, and the specific structure in Example 1 of the specification is preferred.

The filter frame type rainwater pretreatment device described in the utility model can refer to the structure described in the patent document CN201510906997.1, preferably the specific structure of Example 1 of the specification.

The primary rain cyclone separation well described in the utility model can refer to the structure recorded in the patent document CN201510905959.4, preferably the specific structure of Example 1 of the specification.

The initial rainwater filter described in the utility model can refer to the structure described in the patent document CN201510418319.0, preferably the specific structure of Example 1 of the specification.

The multi-stage rainwater purification treatment equipment described in the utility model can refer to the structure described in the patent document CN201510459527.5, preferably the specific structure of Example 1 of the specification.

The biological filter described in the utility model can refer to the structure described in the patent document CN201510633556.9, preferably the specific structure of Example 1 of the specification.

The multi-stage rainwater biological treatment device described in the utility model can refer to the structure described in the patent document CN201510632502.0, and the specific structure of Example 1 of the specification is preferred.

The high-efficiency rainwater filter described in the utility model can refer to the structure described in the patent document CN201510880967.8, preferably the specific structure of Example 1 of the specification.

The cylindrical filtering system described in the utility model can specifically refer to the structure recorded in the patent document CN105435508A, preferably the specific structure of Example 1 of the specification.

The technical solution will be further described in detail below in conjunction with specific embodiments. It should be understood that the following examples are only to illustrate and explain the utility model, and should not be construed as limiting the protection scope of the utility model. All technologies realized based on the above contents of the present utility model are covered within the scope of protection intended by the utility model.

Example 1

The structure of a low water loss rainwater filter tank in this embodiment is shown in Figure 1, wherein the filter tank includes a well body 1, a cover plate 2 located above the well body, water inlet pipes 3 and outlet pipes respectively located at the front and rear ends of the well body water pipe 4. The inside of the well body also includes a retaining wall 5 arranged longitudinally (that is, downward from the cover plate) to divide the well body into two parts, the pre-sedimentation area A and the treatment area B. The inside of the well body further includes a support plate 6 arranged laterally between the retaining wall 5 and the rear end well body to divide the treatment area B into the upper part as the filtering area B-1 and the lower part as the settlement area B-2.

Wherein, the lower end of the retaining wall 5 is provided with a water tank 7 from the bottom surface of the well body, and the upper end is provided with an overflow tank 8 from the cover plate, and a slag blocking net 9 is installed on the overflow tank 8 and the water tank 7 . The upper end of the water tank 7 is flush with the lower end of the support plate 6 . A filter medium 10 is laid above the support plate 6 . The filter medium is composed of perlite, quartz sand, zeolite and activated carbon. A plurality of water holes 11 are arranged at intervals on the support plate 6 to allow rainwater in the settling area to enter the filtering area.

Wherein, the lowermost end of the overflow tank 8 is higher than the filter medium 10 . The upper end of the filter medium 10 is flush with the lowermost end of the outlet pipe 4 . The horizontal height of the water inlet pipe 3 and the water outlet pipe 4 is the same.

Well cover 12 is also arranged on the cover plate, and its number is 2, one is arranged on the top of pre-sedimentation zone A, and one is arranged on the top of filter zone B-1, can observe the internal situation of filter pond through described well cover, It is convenient to maintain and handle the interior of the filter tank.

The well body 1 and the cover plate 2 in this embodiment can be prefabricated and spliced on site, which reduces the time for on-site installation and has high installation efficiency.

Example 2

A kind of method that utilizes the low water loss rainwater filter pond in embodiment 1 to handle rainwater is:

When it rains, runoff rainwater from streets, highways, parking lots, residential areas or shopping malls, and the ground, which carry pollutants such as particulate matter, suspended solids, floating matter, nitrogen, and phosphorus, enters the pre-settling area A of the well body through the water inlet pipe 3, which is greater than Pollutants such as particulates, suspended solids and floating solids in the pore size of the slag blocking net 9 on the water tank 7 will be intercepted in the pre-sedimentation zone A, and most of the particulates entering the settlement zone B-2 will also settle in the sedimentation zone under the action of gravity. Area. As the water level rises in the settlement area, when it reaches the position of the support plate 6, the rainwater will flow through the filter medium 10 from the water hole 11, and after being treated by the filter medium 10, clean rainwater will flow out from the top of the filter medium 10. Discharge from outlet pipe 4 again.

When the rainfall is large and reaches the height of the overflow tank 8, the rainwater in the pre-sedimentation area A can directly overflow from the overflow tank 8 above the retaining wall 5 to the filter area B-1, and then drained away through the outlet pipe 4. Slag blocking net 9 can intercept floating objects etc. in the pre-settling area.

When the treatment capacity of the filter tank drops, it can also be maintained, and the well cover 12 can be opened to clean up silt and floating objects at the bottom of the well body.

Example 3

The structure of a road segmental rainwater treatment system in this embodiment is shown in Figure 2. The system includes a rainwater main pipe C on the municipal road R, a rainwater branch pipe D connected to the rainwater main pipe C, and the rainwater branch pipe D The end of is the gully 13. The rainwater main pipe C is segmented according to the length of 500-800m, and the low water loss rainwater filter pool 14 described in the embodiment 1 is set on each section of the rainwater main pipe C. The water inlet pipe 3 and the water outlet pipe 4 at the front and rear ends of the well body of the filter pool 14 communicate with the front and back (ie upstream and downstream) of the rainwater main pipe C respectively.

Further, a hydrocyclone separator 15 is also arranged in front of the low water loss rainwater filter tank 14 (ie, the water inlet direction of the filter tank).

Further, a cylindrical filter system 16 is also provided behind the low water loss rainwater filter tank 14 (ie, the water outlet direction of the filter tank).

Further, the rainwater outlet 13 is provided with a filter bag 17 or a filter bucket 18 .

Example 4

The structure of a road segmental rainwater treatment system in this embodiment is shown in Figure 3. The system includes a rainwater main pipe C on the municipal road R, a plurality of rainwater branch pipes D arranged at intervals on both sides of the rainwater main pipe C, A plurality of rainwater outlets 13 are connected in series at the end of the rainwater branch pipe D. The rainwater branch pipe D is segmented according to the length of 500-800m, and the low water loss rainwater filter pool 14 described in the embodiment 1 is set on each section of the rainwater branch pipe D.

Further, a hydrocyclone separator 15 is also arranged in front of the low water loss rainwater filter tank 14 (ie, the water inlet direction of the filter tank).

Further, a cylindrical filter system 16 is also provided behind the low water loss rainwater filter tank 14 (ie, the water outlet direction of the filter tank).

Further, the rainwater outlet 13 is provided with a filter bag 17 or a filter bucket 18 .

As mentioned above, embodiment of this invention was described. However, this invention is not limited to said embodiment. All modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included within the protection scope of the present utility model.

Claims (10)

1. a kind of low water loss rainwater filtering pool, it is characterized in that, described filtering pool comprises well body, is positioned at the cover plate above well body, is positioned at the water inlet pipe of well body opposite side wall and water outlet pipe; Retaining wall; a support plate arranged between the retaining wall and the side wall where the outlet pipe is located; the retaining wall and the support plate divide the well body into: a pre-settling area between the side wall where the water inlet pipe is located and the retaining wall; Filtration zone above the support plate and settling zone below; The pre-sedimentation zone communicates with the water inlet pipe; the filter zone communicates with the water outlet pipe; The retaining wall is provided with a water tank from the bottom surface of the well body, and an overflow tank is opened from the cover plate at the upper end; A filter medium is laid above the support plate; water holes are arranged on the support plate. 2. The rainwater filter tank with low water loss according to claim 1, characterized in that a slag blocking device is installed on the overflow tank and the water passing tank; the slag blocking device is a slag blocking net. 3. The low water loss rainwater filter tank according to claim 1, wherein the bottom end of the overflow tank is not lower than the filter medium; The upper end of the water tank is not higher than the lower end of the support plate. 4. The low water loss rainwater filter pool as claimed in claim 1, wherein there are one or more said water holes; when a plurality of water holes are set, said water holes are spaced apart on the support plate set up. 5. The low water loss rainwater filter tank according to claim 1, wherein the filter medium is selected from one of fallen leaf compost, pumice, peat soil, perlite, zeolite, ceramsite, biological activated carbon or sand or more; Set the type or thickness of the filter medium according to the rainwater treatment needs. 6. The low water loss rainwater filter tank according to claim 1, wherein the water inlet pipe and the water outlet pipe have the same or different horizontal heights; The water outlet pipe is not lower than the filter medium. 7. The low water loss rainwater filter pool as claimed in claim 1, characterized in that, the cover plate is provided with a manhole cover, the number of which is two or more; The well cover is installed on the pre-sedimentation area and the cover plate above the filter; The well body and the cover plate are spliced on site after prefabrication. 8. A road segment rainwater treatment system, said system comprising: a rainwater main pipe on a municipal road, one or more rainwater branch pipes connected to the rainwater main pipe, and one or more rainwater branch pipes are connected to one or more rainwater branch pipe ends mouth; it is characterized in that, described system carries out segmentation to rainwater main pipe and/or rainwater branch pipe, is set on every rainwater main pipe and/or rainwater branch pipe as described in any one of claim 1-7 low water loss Rainwater filter pool. 9. The road segment rainwater treatment system as claimed in claim 8, wherein the segment is segmented according to 50-1000m; The system sets up one or more series or parallel low water loss rainwater filter ponds according to the treatment requirements and/or road conditions on each section of road. 10. The road segmented rainwater treatment system according to claim 8 or 9, wherein the water inlet pipes and outlet pipes at the front and rear ends of the well body of the low water loss rainwater filter pool are respectively connected to the rainwater main pipe and/or the rainwater branch pipe The front, rear and back are connected upstream and downstream; A rainwater separator is also arranged in front of the low water loss rainwater filter tank on each section of pipeline, that is, in the water inlet direction of the filter tank; The rainwater separator is selected from one or more of rainwater particle filtering devices, floating object interception devices, hydraulic particle separation devices, filter frame rainwater pretreatment devices, primary rain cyclone separation wells, or hydrocyclone separators, etc. kind; Other rainwater filters are also installed on each section of the pipeline; Other rainwater filters are selected from the initial rainwater filter, multi-stage rainwater purification treatment equipment, biological filter, multi-stage rainwater biological treatment device, high-efficiency rainwater filter, cylindrical filter system, or quick-installed multi-stage rainwater treatment filter system one or more of these; The rainwater separator and other rainwater filters are arranged one or more in series or in parallel according to the treatment requirements and/or road conditions on each section of the road; A water filter bag and/or a water filter bucket are also arranged on the rainwater outlet.