CN213173927U

CN213173927U - Urban rainwater collecting device

Info

Publication number: CN213173927U
Application number: CN202020542629.XU
Authority: CN
Inventors: 张克雪; 王琰
Original assignee: Qinghai Urban Planning & Design Institute Co ltd
Current assignee: Qinghai Urban Planning & Design Institute Co ltd
Priority date: 2020-04-14
Filing date: 2020-04-14
Publication date: 2021-05-11
Anticipated expiration: 2030-04-14

Abstract

The utility model relates to an urban rainwater collection device, the vertical energy dissipation plate that is equipped with in the rainwater case, the energy dissipation plate divide into the rainwater case right side and intake box and left rose box, the slope is equipped with the detachable filter screen in the left side rose box, the filter screen divide into goes up water outlet zone and lower filtering area with left rose box, the degree of depth that the case was intake to the right side is less than the degree of depth of left rose box, be equipped with the water inlet channel that feeds through right side intake box and lower filtering area between the bottom of energy dissipation plate bottom and the right side intake box, the right side is intake and is equipped with the water inlet on the right side lateral wall of case for the energy dissipation plate, be equipped with the delivery port on the left side lateral wall of left side rose box for the energy dissipation plate. The device is when filtering the rainwater and collecting, and the pollutant can be held back in the filter screen below, and when the pollutant gathering was more, the pollutant can drop automatically, filters when collecting and stopping, can become the backwashing water automatically at the rainwater of filter screen top.

Description

Urban rainwater collecting device

Technical Field

The utility model relates to an urban rainwater handles technical field, concretely relates to urban rainwater collection device.

Background

In recent years, along with the rapid development of the urbanization process of China, the urban water resource shortage phenomenon is more serious, and urban waterlogging occurs frequently due to a large amount of rainfall in the flood season. The rainwater resource is used as a renewable resource, so that the danger of urban water resource shortage can be relieved, the pressure of a municipal drainage pipe network can be reduced, and the urban waterlogging is reduced.

Along with the attention of people to rainwater collection and utilization, more and more rainwater filter equipment is used, but we find in the use that rainwater is collected and can meet a lot of problems in the popularization process, and at first general filter equipment can only hold back great particulate matter, and the water after the filtration is still very muddy, leads to people to be unwilling to use filterable rainwater. Secondly, the filtered filter residue remains on the filter screen, and the back washing of the filter screen also needs to consume a large amount of manpower and material resources.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, an object of the utility model is to provide a back flush is convenient, deposit effectual urban rainwater collection device.

The utility model adopts the technical proposal that: urban rainwater collection device, including rainwater case and case lid, the vertical energy dissipation plate that is equipped with in the rainwater case, the energy dissipation plate divide into the rainwater case right side and intake box and left rose box, left side rose box bottom is equipped with the mud discharging port, the slope is equipped with the detachable filter screen right in the left side rose box, the filter screen divide into goes out the basin and crosses the basin with left rose box, the degree of depth that the case was intake to the right side is less than the degree of depth of left rose box, the energy dissipation plate top flushes with the rainwater case top, be equipped with the water inlet channel that feeds through right side and intake box and cross the basin down between energy dissipation plate bottom and the right side intake box bottom, the right side is intake and is equipped with the water inlet on the right side lateral wall for the energy dissipation plate, left side rose box is equipped with the delivery port on the left side lateral wall for the energy.

As described above, the urban rainwater collecting device further includes that the filter screen sequentially includes the first stainless steel wire mesh, the non-woven fabric layer and the second stainless steel wire mesh from top to bottom.

The urban rainwater collecting device further comprises a water distribution plate vertically arranged in the water inlet channel, the water distribution plate and the energy dissipation plate are integrally formed, a plurality of water distribution holes are formed in the water distribution plate, and the water distribution holes are uniformly arranged on the water distribution plate at intervals.

The urban rainwater collecting device further includes that the height from the water outlet to the top of the rainwater tank is D, the height from the water inlet to the top of the rainwater tank is D, the height from the water inlet channel to the top of the rainwater tank is L, 2D > L > 1.5D, and 1.2D > D > 0.8D.

The urban rainwater collecting device further comprises a guide plate formed by horizontally extending the bottom of the right water inlet tank into the left filter tank, wherein the length of the cross section of the left filter tank is B, the length of the cross section of the guide plate is B, and the ratio of 0.3B to B is more than 0.2B.

The urban rainwater collecting device further comprises a funnel-shaped bottom of the left filter box, and the sludge discharge port is arranged at the lowest position of the bottom of the left filter box.

The utility model has the advantages that: 1. when the device is used for filtering and collecting rainwater, pollutants can be trapped below the filter screen, when more pollutants are accumulated, the pollutants can automatically fall off, and when the filtering and collecting are stopped, the rainwater above the filter screen can automatically become backwashing water, so that the filter screen does not need to be frequently washed, and manpower and material resources are saved; 2. through the arranged energy dissipation plate, when the rainfall intensity is high, rainwater entering the lower filtering area firstly impacts the energy dissipation plate, and then the flow velocity is reduced when the rainwater enters the lower filtering area, so that a certain energy dissipation effect is achieved; 3. simultaneously to the optimization setting of inhalant canal, water inlet, delivery port and guide plate, can prescribe a limit to the position of rivers swirl in the left side filter tank and the velocity of flow of rivers to can greatly increased subside the effect.

Drawings

Fig. 1 is a schematic cross-sectional structure of the present invention.

FIG. 2 is a flow field trace plot when the depth of the right inlet tank is equal to the depth of the left filter tank.

FIG. 3 is a flow field trace plot when the depth of the right inlet tank is less than the depth of the left filter tank.

Fig. 4 is a schematic structural view of the water distribution plate.

Fig. 5 is a trace diagram of the flow field when no baffles are provided.

Fig. 6 is a trace diagram of the flow field with a baffle disposed.

In the figure: 1. a rain tank; 2. a box cover; 3. an energy dissipation plate; 4. a right water inlet tank; 5. a left filter box; 6. a filter screen; 7. an upper water outlet area; 8. a lower filtration zone; 9. a water inlet channel; 10. a water inlet; 11. a water outlet; 12. a sludge discharge port; 13. a water distribution plate; 14. a water distribution hole; 15. a baffle;

D. the height from the water outlet to the top of the rainwater tank; d. the height from the water inlet to the top of the rainwater tank; l, the height from the water inlet channel to the top of the rainwater tank; B. the length of the cross section of the left filter box; b. length of cross section of the baffle.

Detailed Description

The embodiments of the present invention will be further explained with reference to the drawings.

As shown in fig. 1, the urban rainwater collecting device provided by this embodiment can filter rainwater in a rainwater collecting process, and includes a rainwater tank 1 and a tank cover 2, specifically, the rainwater tank 1 and the tank cover 2 may be connected by a screw thread, and certainly, other disassembling manners may also be adopted, which is not specifically limited herein.

The utility model discloses a rainwater tank, including rainwater tank 1, energy dissipation plate 3, rainwater tank 1, left filter box 5, mud discharge port 12, for the convenience of mud discharge port 12 row mud sediment, can with energy dissipation plate 3 divide into right intake box 4 and left filter box 5 with rainwater tank 1, left side filter box 5 bottom is equipped with mud discharge port 12, can with left filter box 5 bottom sets up to leak hopper-shaped, mud discharge port 12 sets up the lowest department in left filter box 5 bottom, and this is the preferred mode of course, and for the convenience of the device's explanation, the following will all use left filter box 5 that leaks hopper-shaped as the example and do the concrete description. When the sludge discharging device is used, only the sludge discharging pipeline is connected with the sludge discharging port 12, and when sludge is required to be discharged, the sludge discharging pipeline is opened, which is not described in detail herein.

The slope is equipped with detachable filter screen 6 in the left side rose box 5, can make filter screen 6 and left rose box 5 joint to realize filter screen 6 and left rose box 5 can dismantle and be connected, also can adopt other dismantlement modes certainly, do not differ here and illustrate by way of example. As shown in fig. 1, the filter screen 6 is disposed obliquely to the right, and the specific angle of inclination of the filter screen 6 may be determined according to the size of the left filter box 5, which is not limited herein. The device is when filtering the rainwater and collecting, and the pollutant can be held back in filter screen 6 below, and when the pollutant gathering was more, the pollutant can drop automatically, filters when collecting and stopping, can become the backwash water automatically at the rainwater of filter screen 6 tops, consequently need not often to wash the filter screen, has saved manpower and materials.

Preferably, the filter screen 6 may include a first stainless steel screen, a non-woven fabric layer, and a second stainless steel screen from top to bottom in sequence, and a specific structure diagram is not shown in the drawings, which is only a preferred manner, and filter screens with other structure forms may also be used, which are not illustrated herein by way of example.

The filter screen 6 divides the left filter tank 5 into an upper water outlet area 7 and a lower filter area 8, specifically as shown in fig. 1, the top of the energy dissipation plate 3 is flush with the top of the rainwater tank 1, a water inlet channel 9 communicating the right water inlet tank and the lower filter area is arranged between the bottom of the energy dissipation plate 3 and the bottom of the right water inlet tank 4, the depth of the right water inlet tank 4 is smaller than that of the left filter tank 5, and by this arrangement, the sedimentation effect can be greatly increased, specifically as shown in fig. 2 and 3, the position of the water inlet channel 9 in fig. 3 is higher than that of the water inlet channel 9 in fig. 2, the position of the water inlet channel 9 in fig. 2 is lower, the liftable height of the water flow is higher than that of the water flow in fig. 3, and the pollutants can sink in the ascending process, however, the lower filter area 8 in fig. 2 is affected by the water inlet, so that the pollutants having fallen to the bottom of the tank are carried into the upper, secondary scouring is formed, which is extremely disadvantageous to the accumulation of pollutants. In a reverse view of fig. 3, because the position of the water inlet channel 9 is changed, the vortex position caused by the water flow is changed, and the vortex position moves downwards, although the vortex also generates a certain disturbance to the sunken pollutants, compared with fig. 2, the vortex with lower flow speed has less influence on the whole sludge settling effect, thereby greatly improving the settling effect of the pollutants.

In order to further eliminate the vortex in the lower filtering area 8 and make the water flow entering the lower filtering area 8 more uniformly distributed, a water distribution plate 13 may be vertically disposed in the water inlet channel 9, specifically, as shown in fig. 1 and 4, the water distribution plate 13 is integrally formed with the energy dissipation plate 3, a plurality of water distribution holes 14 are disposed on the water distribution plate 13, the water distribution holes 14 are uniformly spaced on the water distribution plate 13, and the number of the water distribution holes 14 is determined by the size of the water distribution plate 13, and is not specifically limited, so that the sludge settling effect can be increased by the disposed water distribution plate 13 without affecting the filtering.

It is specific right side intake tank 4 is equipped with water inlet 10 on the right side lateral wall for energy dissipation plate 3, left side rose box 5 is equipped with delivery port 11 on the left side lateral wall for energy dissipation plate 3, delivery port 11 is located the left rose box lateral wall of the play pool of water on, and specific rainwater flow direction is: thereby through entering into right water tank 4 from water inlet 10, then in entering lower filtering area 8 through inlet channel 9, after filtering through filter screen 6, get into upper water outlet area 7, then at last keeping aside from delivery port 11 to behind this rainwater collection device, can realize retrieving the filtration of rainwater, thereby improved the quality of rainwater.

Preferably, to optimize on this structure, the vortex in the lower filtering zone 8 is continuously reduced, the flow velocity in the lower filtering zone 8 is reduced, the sludge settling effect is increased, the height of the water outlet 11 to the top of the rainwater tank 1 may be set to D, the height of the water inlet 10 to the top of the rainwater tank 1 may be set to D, the height from the water inlet channel 9 to the top of the rain water tank 1 is set to be L, 2D is more than L and more than 1.5D, 1.2D is more than D and more than 0.8D, for example, the height D from the water outlet 11 to the top of the rain water tank 1 is set to be 1m, so that the height L from the water inlet channel 9 to the top of the rain water tank 1 can be 1.5-2 m, particularly 1.8m, the height d from the water inlet 10 to the top of the rainwater tank 1 can be 0.8-1.2 m, specifically 1.1m, and certainly other values can be set, which are not illustrated herein.

Further, in order to make the water flow condition in the lower filtering area 8 more stable, the bottom of the right water inlet tank 4 horizontally extends to form a guide plate 15 in the left filtering tank 5, as shown in fig. 5 and 6, after the guide plate 15 is arranged, the vortex flow direction in the upper left of the lower filtering area 8 originally moves to the middle and lower part, and the density of the streamline becomes thinner, which shows that although the vortex still exists, the turbulent flow can become smaller, and the water flow velocity is lower at the position where the vortex is generated, so the guide plate 15 is arranged to play a role in reducing the vortex.

Specifically, the length of the cross section of the left filter box 5 may be set to be B, the length of the cross section of the guide plate 15 is B, and 0.3B > 0.3B, for example, when the length B of the cross section of the left filter box 5 is set to be equal to 1m, the value space of the length B of the cross section of the guide plate 15 may be set to be 0.2-0.3 m, specifically, the length of the cross section of the guide plate 15 may be 0.25m, and of course, other values may also be used, which are not illustrated herein.

The present invention is not limited to the above-mentioned examples, and various modifications and changes which can be made by those skilled in the art without creative efforts are protected by the present patent within the scope defined by the claims of the present invention.

Claims

1. Urban rainwater collection device, including rainwater case and case lid, its characterized in that: the vertical energy dissipation plate that is equipped with in the rainwater case, the energy dissipation plate divide into the rainwater case and intake case and left rose box in the right side, left side rose box bottom is equipped with the mud discharging port, the slope is equipped with the detachable filter screen right in the left side rose box, the filter screen divide into goes up water outlet zone and lower rose box with left rose box, the degree of depth that the case was intake in the right side is less than the degree of depth of left rose box, the energy dissipation plate top flushes with the rainwater case top, be equipped with the water inlet channel that feeds through right water inlet tank and lower rose box between energy dissipation plate bottom and the right side intake box bottom, the case is intake on the right side lateral wall for the energy dissipation plate in the right side, be equipped with the delivery port on the left side lateral wall of left side rose box for the energy dissipation plate.

2. The urban rainwater collection device according to claim 1, wherein: the filter screen sequentially comprises a first stainless steel wire mesh, a non-woven fabric layer and a second stainless steel wire mesh from top to bottom.

3. The urban rainwater collection device according to claim 1, wherein: the water distribution plate is vertically arranged in the water inlet channel, the water distribution plate and the energy dissipation plate are integrally formed, a plurality of water distribution holes are formed in the water distribution plate, and the water distribution holes are evenly distributed on the water distribution plate at intervals.

4. The urban rainwater collection device according to claim 3, wherein: the height of delivery port to the raintank top is D, the height of water inlet to the raintank top is D, the height of inhalant canal to the raintank top is L, 2D > L > 1.5D, 1.2D > D > 0.8D.

5. The urban rainwater collection device according to claim 4, wherein: the bottom of the right water inlet tank horizontally extends into the left filter tank to form a guide plate, the length of the cross section of the left filter tank is B, the length of the cross section of the guide plate is B, and 0.3B is more than B and more than 0.2B.

6. A municipal rainwater collection device according to any one of claims 1 to 5 wherein: left side rose box bottom is for leaking hopper-shaped, the mud discharging port sets up the lowest department in left rose box bottom.