CN210459373U

CN210459373U - A rainwater collection and treatment system

Info

Publication number: CN210459373U
Application number: CN201920970133.XU
Authority: CN
Inventors: 王金凤; 鲍维维
Original assignee: Anhui Xingluo Construction Group Co ltd
Current assignee: Anhui Xingluo Construction Group Co ltd
Priority date: 2019-06-24
Filing date: 2019-06-24
Publication date: 2020-05-05
Anticipated expiration: 2029-06-24

Abstract

The utility model relates to the technical field of rainwater treatment, in particular to a rainwater collection and treatment system. A rainwater collection and treatment system has the advantage of being able to purify rainwater and use it directly as irrigation water. A rainwater collection and treatment system includes an early and late rainwater diversion device and a late rainwater purification device. The latter rainwater purification device includes an aeration tank and a filter box, and the latter rainwater is discharged through the aeration tank and the filter box in sequence. The early and late rainwater is diverted through the early and late rainwater diversion device, and the initial rainwater is directly discharged to the wastewater treatment plant. In the later stage, the rainwater is treated by an aeration tank to remove organic matter and then filtered through a filter box to filter inorganic impurities. Since the late rainwater itself is less polluted, the latter rainwater after the two-step treatment can be directly used as irrigation water.

Description

Rainwater collecting and treating system

Technical Field

The utility model belongs to the technical field of the technique of rainwater processing and specifically relates to a rainwater collection processing system is related to.

Background

The initial rainwater contains a large amount of pollutants such as organic matters, heavy metals, grease, suspended solids and the like, and the pollutants are serious, so the pollutants need to be discharged to a sewage treatment plant for treatment, and the pollutants in the later stage rainwater are less, so the later stage rainwater can be used as irrigation water and part of domestic water after being simply treated.

The prior patent with the publication number of CN102182242B discloses a rainwater treatment system and a rainwater treatment method thereof. In the scheme, when the initial rainwater water level reaches the preset height of the river water backflow retarding weir, the lifting pump station starts to operate, the initial rainwater stored in the rainwater storage pipe and the rainwater well is pumped into the initial rainwater sedimentation tank, and when the water level in the initial rainwater sedimentation tank reaches the preset height, the lifting pump station stops working; after the lifting pump station stops working, if rainfall is still continued, rainwater at the later stage can cross the river water backflow blocking weir and flow through the rainwater dredging pipe to enter the river channel.

The above prior art solution has the following drawbacks: later stage rainwater is directly discharged to the river course, does not get up water resource effective utilization, and although the pollutant is less in the later stage rainwater, still contains partial pollutant, consequently directly discharges and can cause the river course to pollute in the river course.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a rainwater collection processing system, its advantage lies in can directly using as irrigation water with the rainwater purification.

The above utility model discloses an above-mentioned utility model purpose can realize through following technical scheme: the utility model provides a rainwater collection processing system, includes early later stage rainwater diverging device and later stage rainwater purifier, later stage rainwater purifier includes aeration tank and rose box, and the later stage rainwater is discharged behind aeration tank and rose box in proper order.

Through adopting above-mentioned technical scheme, will just later stage rainwater reposition of redundant personnel through just later stage rainwater diverging device, the initial stage rainwater directly discharges to waste water treatment plant. And the later stage rainwater is treated by the aeration tank to remove organic matters, and then inorganic impurities are filtered by the filter box. Because the later stage rainwater is less polluted, the later stage rainwater after the two-step treatment can be directly used as irrigation water.

The utility model discloses further set up to: the later stage rainwater processing apparatus includes the aeration tank that is connected with the inlet tube, and the aeration tank is the cuboid form, advances water piping connection aeration tank along length direction's one end, and the aeration pipe that many set up side by side is installed to the aeration tank bottom, and the one end that the inlet tube was kept away from to the filtering ponds is connected with the warning pipe.

Through adopting above-mentioned technical scheme, make rivers as far as possible long time distance that flows in the aeration tank through the aeration tank that sets up cuboid form, not take out through the water pump but discharge through the overflow pipe behind the aeration tank for slightly through comparatively clean surface water transport next flow behind the sediment.

The utility model discloses further set up to: install the vertical baffle of polylith in the aeration tank, baffle width equals the aeration tank width, and the baffle height is less than the aeration tank degree of depth, and one of them up end and aeration tank up end parallel and level of two adjacent baffles, another lower terminal surface is laminated with the bottom surface of aeration tank.

By adopting the technical scheme, when water flows from one end of the aeration tank to the other end of the aeration tank, the water must pass through the gap reserved between each baffle and the top of the aeration tank or the bottom of the aeration tank, so that the path and time of the water flow passing through the aeration tank are prolonged as far as possible, and the later-stage rainwater fully reacts in the aeration tank.

The utility model discloses further set up to: one end of the overflow pipe, which is far away from the filtering tank, extends into the cache tank, the side face of the bottom of the cache tank is connected with a first water pipe, a water pump is installed on the first water pipe, and the other end of the first water pipe extends into the filtering tank on the side face of the cache tank.

By adopting the technical scheme, when the filter box is used for quickly filtering, certain requirements are met on water pressure, and water flow overflows to the cache pool and then is conveyed to the filter box through the water pump, so that the water flow is conveyed into the filter box in a pressurizing state.

The utility model discloses further set up to: a floating ball liquid level sensor is installed in the cache pool, the upper response position is close to the top of the cache pool, and the lower response position is close to the bottom of the cache pool; when the liquid level in the buffer pool reaches the last response position of floater level sensor, the later stage rainwater in the buffer pool is started to be extracted by the water pump and enters the filter box for filtering, and when the liquid level is lower than the lower response position of the floater level sensor, the water pump is closed.

Through adopting above-mentioned technical scheme, judge the liquid level height position through floater level sensor, when the liquid level position is higher, take out through the water pump, the water pump stop work when the liquid level is lower is in order to avoid the empty load of water pump to damage.

The utility model discloses further set up to: the first water delivery pipe enters the filter box from the upper end, and the matching part of the first water delivery pipe and the water inlet pipe is sealed.

By adopting the technical scheme, because the water flow is pressurized to be rapidly filtered, the first water conveying pipe needs to be sealed with the filter box.

The utility model discloses further set up to: be provided with multilayer filtration in the rose box, multilayer filtration includes from last fine sand layer, activated carbon layer, metalling and the cobble layer that down sets gradually.

Through adopting above-mentioned technical scheme, come all to handle the impurity peculiar smell of later stage rainwater through multilayer filtration.

The utility model discloses further set up to: the side surface of the filtering box close to the bottom is connected with a second water delivery pipe, and a steel wire mesh for blocking cobblestones is arranged at the joint of the filtering box and the second water delivery pipe.

Through adopting above-mentioned technical scheme, the rainwater after the filtration flows from the lower extreme, sets up the wire net in order to avoid the cobblestone to discharge along the second raceway.

The utility model discloses further set up to: the early and later stage rainwater flow dividing device comprises a water collecting pipe for conveying rainwater, a vertical pipe located at the tail end of the water collecting pipe and extending vertically and downwards, and a horizontal pipe connected to the lower end of the vertical pipe and extending towards the horizontal direction, wherein a flowmeter is mounted on the vertical pipe; when the rainwater flow reaches a set value, the first electric three-way reversing valve is switched to be communicated with the water inlet pipe.

Through adopting above-mentioned technical scheme, the rainwater is collected to the collector pipe, and the initial stage rainwater is behind vertical pipe and horizontal pipe, discharges waste water treatment plant through the drain pipe. When the flow of the rainwater measured by the flow meter reaches a set value, the first electric three-way reversing valve is switched to a state communicated with the water inlet pipe, so that the rainwater is collected in the later period.

The utility model discloses further set up to: the vertical pipe is connected with the horizontal pipe through a three-way pipe, the other end of the three-way pipe faces downwards, a first pressure sensor is installed at the other end of the three-way pipe, the measuring end of the first pressure sensor extends into the three-way pipe, and the measuring surface is higher than the inner bottom surface of the horizontal pipe.

Through adopting above-mentioned technical scheme, first pressure sensor detects no water pressure, has judged the rain and has stopped, and the home position is resumeed to first electronic tee bend switching-over valve. The measuring surface of the first pressure sensor is higher than the inner bottom surface of the horizontal pipe, so that the first pressure sensor cannot respond in time due to residual rainwater in the three-way pipe when no rain exists.

To sum up, the utility model discloses a beneficial technological effect does:

1. the early and late stage rainwater is shunted through the early and late stage rainwater shunting device, the early stage rainwater is directly discharged to a wastewater treatment plant, the later stage rainwater is treated by an aeration tank to remove organic matters, and then inorganic impurities are filtered by a filter box, so that the later stage rainwater is less polluted, and the later stage rainwater after two-step treatment can be directly used as irrigation water;

2. when water flows from one end of the aeration tank to the other end of the aeration tank, the water must pass through gaps reserved between each baffle and the top of the aeration tank or the bottom of the aeration tank, so that the path and time of the water flow passing through the aeration tank are prolonged as far as possible, and rainwater can fully react in the aeration tank in the later period.

Drawings

FIG. 1 is a schematic structural view of an embodiment;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a schematic sectional view of a filter box portion in the embodiment.

Reference numerals: 1. a rainwater flow dividing device at the early and later periods; 2. a later stage rainwater purification device; 3. a water collection pipe; 4. a vertical tube; 5. a horizontal tube; 6. a flow meter; 7. a three-way pipe; 8. a first pressure sensor; 9. a first electrically operated three-way directional valve; 10. a drain pipe; 11. a water inlet pipe; 12. an aeration tank; 13. an aeration pipe; 14. a baffle plate; 15. an overflow pipe; 16. caching a pool; 17. a floating ball liquid level sensor; 18. a first water delivery pipe; 19. a water pump; 20. a filter box; 21. a fine sand layer; 22. an activated carbon layer; 23. a crushed stone layer; 24. a cobble layer; 25. steel wire mesh; 26. a second water delivery pipe.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

As shown in fig. 1, a rainwater collection and treatment system comprises a first stage rainwater diversion device 1 and a later stage rainwater purification device 2.

As shown in fig. 1 and 2, the initial and late stage rainwater diversion device 1 includes a water collection pipe 3 for conveying rainwater, a vertical pipe 4 located at the end of the water collection pipe 3 and extending vertically and downwardly, and a horizontal pipe 5 connected to the lower end of the vertical pipe 4 and extending horizontally. The vertical pipe 4 is provided with a flow meter 6, and the amount of rainwater passing through the vertical pipe 4 can be measured by the flow meter 6. The vertical pipe 4 is connected with the horizontal pipe 5 through a three-way pipe 7, the other end of the three-way pipe 7 faces downwards, and a first pressure sensor 8 is installed at the other end. The measuring end of the first pressure sensor 8 extends into the three-way pipe 7, and the measuring surface is higher than the inner bottom surface of the horizontal pipe 5. One end of the horizontal pipe 5 far away from the vertical pipe 4 is connected with a first electric three-way reversing valve 9. The first electric three-way directional valve 9 comprises a fixed end and two switching ends, wherein the fixed end is connected with the horizontal pipe 5. The two switching ends are respectively connected with a water outlet pipe 10 and a water inlet pipe 11. The drain pipe 10 discharges rainwater to a sewage treatment plant.

As shown in fig. 1, the post-rainwater treatment device comprises an aeration tank 12 connected with a water inlet pipe 11, wherein the aeration tank 12 is rectangular, and the water inlet pipe 11 is connected with one end of the aeration tank 12 along the length direction. A plurality of aeration pipes 13 arranged side by side are arranged at the bottom of the aeration tank 12, and the aeration pipes 13 are supplied with air by an air pump. Install the vertical baffle 14 of polylith in the aeration tank 12, baffle 14 width equals aeration tank 12 width, and baffle 14 height is less than aeration tank 12 degree of depth, two piece adjacent baffles 14, and wherein an up end and aeration tank 12 upper end mouth parallel and level, another terminal surface and aeration tank 12's bottom surface laminating under. The arrangement of the baffles 14 ensures that water flows from one end of the aeration tank 12 to the other end of the aeration tank 12 and must pass through gaps left between each baffle 14 and the top of the aeration tank 12 or the bottom of the aeration tank 12, so that the path and time of the water flow passing through the aeration tank 12 are prolonged as much as possible, and the rainwater in the aeration tank 12 is fully reacted in the later period.

As shown in fig. 1, the other end of the filtering tank is connected with an overflow pipe 15, one end of the overflow pipe 15, which is far away from the filtering tank, extends into a buffer tank 16, and a floating ball liquid level sensor 17 is installed in the buffer tank 16. The float level sensor 17 has two response points, an upper response position near the top of the buffer tank 16 and a lower response position near the bottom of the buffer tank 16. The side of the bottom of the buffer pool 16 is connected with a first water pipe 18, a water pump 19 is installed on the first water pipe 18, and the other end of the first water pipe 18 extends into a filter box 20 on the side of the buffer pool 16.

As shown in fig. 1 and 3, the first water duct 18 enters the filter box 20 from the upper end, and the joint of the first water duct 18 and the water inlet pipe 11 is sealed. A multi-layer filtering structure is arranged in the filtering box 20, and the multi-layer filtering structure comprises a fine sand layer 21, an activated carbon layer 22, a gravel layer 23 and a cobble layer 24 which are sequentially arranged from top to bottom. The side surface of the filtering box 20 close to the bottom is connected with a second water delivery pipe 26, and a steel wire mesh 25 for blocking cobblestones is arranged at the joint of the filtering box 20 and the second water delivery pipe 26.

The specific working process is as follows:

the early stage rainwater is shunted through the early stage rainwater shunting device 1, the initial stage rainwater is directly discharged through the drain pipe 10, after the flowmeter 6 detects that the initial stage rainwater discharge reaches a set value, the first electric three-way reversing valve 9 is switched to a state communicated with the water inlet pipe 11, and the later stage rainwater flows into the aeration tank 12 through the water inlet pipe 11 at the moment.

The later stage rainwater entering the aeration tank 12 is aerated and aerobically decomposed in the aeration tank 12 to remove organic matters, and then is decomposed in the aeration tank 12 and overflows into the buffer tank 16. When the liquid level in the buffer pool 16 reaches the upper response position of the floating ball liquid level sensor 17, the water pump 19 starts to pump later rainwater in the buffer pool 16 into the filter box 20 for filtering, and when the liquid level is lower than the lower response position of the floating ball liquid level sensor 17, the water pump 19 is closed. The later stage rain water is filtered by the multi-layer filtering structure in the filtering box 20 and then is conveyed out from the second water conveying pipe 26. The water can be directly used as irrigation water after the later period of aeration and filtration treatment.

After the rain stops, when no more rainwater is collected through the water collecting pipe 3, the first pressure sensor 8 detects no water pressure, and the first electric three-way reversing valve 9 recovers the original position.

The embodiment of this specific implementation mode is the preferred embodiment of the present invention, not limit according to this the utility model discloses a protection scope, so: all equivalent changes made according to the structure, shape and principle of the utility model are covered within the protection scope of the utility model.

Claims

1. a rainwater collection and processing system, is characterized in that: comprise early and late rainwater diversion device (1) and late rainwater purification device (2), and described late rainwater purification device (2) comprises aeration tank (12) and filter box (20), the rainwater in the later stage is discharged through the aeration tank (12) and the filter box (20) in sequence.

2. The rainwater collection and treatment system according to claim 1, characterized in that: the latter rainwater treatment device comprises an aeration tank (12) connected to the water inlet pipe (11), and the aeration tank (12) is in the shape of a cuboid , the water inlet pipe (11) is connected to one end of the aeration tank (12) along the length direction, a plurality of aeration pipes (13) arranged side by side are installed at the bottom of the aeration tank (12), and the filter tank is away from one end of the water inlet pipe (11) An overflow pipe (15) is connected.

3. The rainwater collection and treatment system according to claim 2, wherein a plurality of vertical baffles (14) are installed in the aeration tank (12), and the baffles (14) have a width equal to that of the aeration tank. (12) Width, the height of the baffle plate (14) is less than the depth of the aeration tank (12), the upper end face of one of the two adjacent baffle plates (14) is flush with the upper port of the aeration tank (12), and the lower end face of the other one Fitted with the bottom surface of the aeration tank (12).

4. The rainwater collection and treatment system according to claim 2, characterized in that: one end of the overflow pipe (15) away from the filter pool extends into the buffer pool (16), and the side of the bottom of the buffer pool (16) is connected with a first A water delivery pipe (18), a water pump (19) is installed on the first water delivery pipe (18), and the other end of the first water delivery pipe (18) extends into the filter box (20) on the side of the buffer pool (16).

5. The rainwater collection and processing system according to claim 4, characterized in that: a floating ball liquid level sensor (17) is installed in the buffer pool (16), the upper response position is close to the top of the buffer pool (16), and the lower response position is close to the top of the buffer pool (16). The response position is close to the bottom of the buffer pool (16); when the liquid level in the buffer pool (16) reaches the upper response position of the float level sensor (17), the water pump (19) starts to extract the late rainwater in the buffer pool (16). Enter the filter box (20) for filtration, when the liquid level is lower than the lower response position of the float level sensor (17), the water pump (19) is turned off.

6. The rainwater collection and treatment system according to claim 4, wherein the first water delivery pipe (18) enters the filter box (20) from the upper end, and the first water delivery pipe (18) is connected to the water inlet pipe (11). ) is sealed at the mating part.

7. The rainwater collection and treatment system according to claim 6, wherein the filter box (20) is provided with a multi-layer filter structure, and the multi-layer filter structure comprises fine sand layers (21) arranged in sequence from top to bottom. ), activated carbon layer (22), gravel layer (23) and cobblestone layer (24).

8. The rainwater collection and treatment system according to claim 7, characterized in that: the side of the filter box (20) close to the bottom position is connected with a second water pipe (26), the filter box (20) and the second water pipe (26) A wire mesh (25) for blocking pebbles is installed at the connection.

9 . The rainwater collection and treatment system according to claim 1 , wherein the rainwater diversion device (1) in the early and late stages comprises a water collection pipe (3) for conveying rainwater, and is located at the end of the water collection pipe (3) and extends vertically downward. 10 . The vertical pipe (4), and the horizontal pipe (5) connected to the lower end of the vertical pipe (4) and extending in the horizontal direction, the vertical pipe (4) is provided with a flow meter (6), the horizontal pipe (5) ) A first electric three-way reversing valve (9) is connected to one end away from the vertical pipe (4), and the first electric three-way reversing valve (9) includes a fixed end and two switching ends, wherein the fixed end and the horizontal The pipes (5) are connected, and the two switching ends are respectively connected with a drain pipe (10) and a water inlet pipe (11), and the water inlet pipe (11) extends to the filter tank; in the initial state, the first electric three-way reversing valve (9) The switching end of the valve is communicated with the water outlet pipe. When the flow meter (6) measures the rainwater flow to reach the set value, the first electric three-way reversing valve (9) is switched to the state of being communicated with the water inlet pipe (11).

10. The rainwater collection and treatment system according to claim 9, wherein the vertical pipe (4) and the horizontal pipe (5) are connected by a three-way pipe (7), and the The other end faces downward, and a first pressure sensor (8) is installed at this end, the measuring end of the first pressure sensor (8) is deep into the three-way pipe (7), and the measuring surface is higher than the inner surface of the horizontal pipe (5). underside.