Rainwater collection and utilization system for sponge city

Abstract

The utility model provides a rainwater collection and utilization system for sponge cities, which comprises a reservoir, a water pump and a spray pipe, the water pump is arranged in the reservoir, a plurality of axially distributed nozzles are arranged on the peripheral wall of the spray pipe, a seal cover is arranged at the top of the reservoir, the rainwater collection and utilization system further comprises a rainwater collector, a water inlet transmission pipeline and a water outlet transmission pipeline, the rainwater collectors are arranged along the water outlet conveying pipeline, rainwater collecting covers with upward openings and middle pipes located in the middles of the rainwater collecting covers are arranged on the rainwater collectors, the spraying pipes are located above the rainwater collecting covers, the peripheral walls of the spraying pipes are connected with the tops of the middle pipes, and water inlet pipes and water outlet pipes are arranged at the bottoms of the rainwater collecting covers. The rainwater recycling device is applied to sponge city construction, rainwater can be collected, blocked and cleaned, recycling is achieved by sprinkling irrigation on a green belt, and irrigation water saving and rainwater recycling are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of rainwater collection and utilization, and specifically to a rainwater collection and utilization system for a sponge city. Background Art

[0002] In terms of adapting to environmental changes and coping with natural disasters caused by rain, sponge cities start from ecosystem services, build water ecological infrastructure across scales, and combine a variety of specific technologies to build water ecological infrastructure, allowing cities to easily cope with the rainy season.

[0003] The utility model with publication number CN210975430U proposes a sponge city road rainwater collection and utilization system, including a prefabricated drainage trough, the top surface of the prefabricated drainage trough is provided with an overlapping groove, the surface of the overlapping groove is overlapped with a pedal board, the surface of the pedal board is provided with a through opening, the surface of the pedal board is plugged with a cross bar, the cross bar is fixed on the surface of the overlapping groove, the surface of the overlapping groove is provided with a positioning hole, the inside of the positioning hole is plugged with a plug rod, and the plug rod is plugged into the inner wall of the through opening of the pedal board; the beneficial effect is: the sponge city road rainwater collection and utilization system proposed by the utility model adds a protective component on the outer wall of the drainage trough, the protective component penetrates the greening soil layer, the lower half of the plug-in pipe is plugged into the soil layer, and the drip core drips the absorbed rainwater into the soil, thereby realizing the recycling of rainwater.

[0004] The main working principle of the above-mentioned prior art is to open drainage ditches near both sides of the road. The prefabricated drainage ditches are used to store rainwater, and water is supplied to the green belts on both sides of the road by water seepage. However, the prior art has the following shortcomings: 1. The drainage ditches are opened near the green belts on both sides of the road. Weeds, branches, fallen leaves and some debris with a certain volume on the road surface are easy to follow the rainwater to block the opening on the pedal, resulting in less rainwater collection and low rainwater utilization rate; 2. The rainwater collected by the prefabricated drainage ditches can only be used for irrigating green belts and cannot be used for other aspects (such as flushing the road surface). For this reason, the utility model provides a rainwater collection and utilization system for sponge cities. Utility Model Content

[0005] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a rainwater collection and utilization system for sponge cities to solve the problems raised in the above-mentioned background technology. The utility model can realize rainwater collection, blockage prevention and blockage clearing, and use the collected rainwater for green belt irrigation, so as to achieve the dual goals of water saving and rainwater recycling.

[0006] In order to achieve the above-mentioned purpose of the invention, the utility model is implemented through the following technical solutions:

[0007] A rainwater collection and utilization system for sponge cities, the system comprising a water reservoir, a water pump and a nozzle, the water pump is arranged in the water reservoir, the outer peripheral wall of the nozzle is provided with a plurality of axially distributed nozzles, the top of the water reservoir is provided with a cover, and also comprises a rain collector, a water inlet transmission pipeline and a water outlet transmission pipeline, the rain collector is arranged along the water outlet transmission pipeline, the rain collector is provided with a rainwater collection cover with an upward opening and a middle pipe located in the middle of the rainwater collection cover, the nozzle is located above the rainwater collection cover and its outer peripheral wall is connected to the top of the middle pipe, the bottom of the rainwater collection cover is provided with a water inlet pipe and a water outlet pipe, the water inlet pipe and the water outlet pipe are respectively communicated with the inner cavity of the rainwater collection cover and the middle pipe, the bottoms of the water inlet pipe and the water outlet pipe are respectively fixedly connected with the water inlet transmission pipeline and the water outlet transmission pipeline, one end of the water inlet transmission pipeline is connected to the water reservoir through a pipeline, and one end of the water outlet transmission pipeline is connected to the water pump through a pipeline.

[0008] Furthermore, the rainwater collecting cover is conical in shape with the large end facing upwards, and an integrated and coaxial neck sleeve is provided at the bottom of the rainwater collecting cover. One end of the water inlet pipe is fixedly connected to the outer peripheral wall of the neck sleeve and a position close to the top, and the bottom of the neck sleeve is fixedly connected to the top of the water outlet pipe. The bottom of the middle pipe is fixedly connected to a sealing cone mounted in the neck sleeve, and a water hole connected to the inner cavity of the middle pipe is provided at the bottom of the sealing cone.

[0009] Furthermore, a coaxial protective sleeve is welded to the top of the rainwater collection cover, and a coaxial conical drainage cover is fixedly sleeved on the middle tube. The large end of the conical drainage cover faces downward and the outer edge of the large end and the bottom gap of the conical drainage cover are matched. The conical surface of the conical drainage cover is provided with filtering holes close to the outer edge of the large end and evenly distributed.

[0010] Furthermore, the sealing cone and the neck sleeve are slidably matched up and down, the inner conical wall of the rainwater collection cover is fixedly connected with a cross bar, the middle part of the cross bar is welded with a guide sleeve mounted on the outside of the middle tube, and the middle tube is provided with a reset spring located between the guide sleeve and the sealing cone.

[0011] Furthermore, a coaxial annular groove is formed on the outer peripheral wall of the sealing cone, and a sealing rubber ring is sleeved in the annular groove.

[0012] Furthermore, at least three scouring pipes evenly distributed in the circumferential direction are welded to the outer peripheral wall of the middle pipe, and the water outlets of the scouring pipes are located opposite to the top of the outer cone surface of the conical drainage cover.

[0013] Furthermore, a short pipe 1 and a short pipe 2 near the top are welded to the outer wall of the water reservoir, wherein the short pipe 1 is connected to one end of the water inlet transmission pipe through a pipeline, one end of the short pipe 2 is connected to the water outlet of the water pump, and the other end of the short pipe is connected to one end of the water outlet transmission pipe through a pipeline, and the outer peripheral wall of the short pipe is fixedly connected to a switching valve located outside the water reservoir.

[0014] The beneficial effects of the utility model are as follows:

[0015] 1. The utility model is provided with a water storage tank, a water inlet transmission pipeline and a row of rain collectors, wherein one row of rain collectors is installed in a green belt (vegetation with a certain height, such as holly) when in use. The fallen leaves in the green belt are not easy to gather and fall. Therefore, it has the advantage of effectively avoiding the clogging of the rain collector by fallen leaves and debris, thereby greatly improving the amount of rainwater collected.

[0016] 2. The utility model is provided with a water pump, a water transmission pipeline and a row of rain collectors. When water needs to be supplied to the quantized belt, after the pump is started, the rain collector will collect the water and spray it into the green belt. The amount of spraying is large, and due to the obstruction of leaves, it can effectively prevent rainwater from being sprayed to the outside of the green belt and causing rainwater loss, which has the advantage of water-saving sprinkler irrigation.

[0017] 3. The utility model sets the middle pipe to a structure that slides up and down with the neck sleeve, so that when water flows through the middle pipe, it will move upward, and then a conical drainage cover and a flushing pipe are arranged to facilitate flushing away the blockages accumulated on the filter holes with water, which has the advantage of clearing blockages.

[0018] 4. The utility model connects the transfer valve located outside the water reservoir to the second short pipe, so that the collected rainwater can be discharged to the outside, and the collected rainwater can be used in other places as needed. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a structural schematic diagram of a rainwater collection and utilization system for a sponge city according to the utility model;

[0020] Figure 2 This is a schematic diagram of the structure of a rainwater collector for a rainwater collection and utilization system for a sponge city according to the utility model;

[0021] Figure 3 It is a schematic diagram of detailed connection between a middle pipe and a rainwater collection cover of a rainwater collection and utilization system for a sponge city according to the utility model;

[0022] In the figure: 1. water reservoir; 11. short pipe 1; 12. short pipe 2; 121. transfer valve; 2. water pump; 3. rain collector; 31. rainwater collection cover; 311. water inlet pipe; 312. water outlet pipe; 313. neck sleeve; 314. cross bar; 3141. guide sleeve; 316. protective sleeve; 32. middle pipe; 321. sealing cone; 3211. water hole; 3212. annular groove; 322. conical drainage cover; 3221. filter hole; 323. flushing pipe; 4. water inlet transmission pipeline; 5. water outlet transmission pipeline; 6. reset spring; 7. sealing rubber ring; 9. nozzle; 91. nozzle; 101. cover. DETAILED DESCRIPTION

[0023] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0024] See also Figures 1 to 3 The utility model provides a rainwater collection and utilization system for sponge cities. The series is used for rainwater collection, blockage prevention and clearing, and can also sprinkle irrigation on green belts to achieve the purpose of rainwater collection and recycling, thereby improving the efficiency and quality of sponge city construction.

[0025] In terms of structural composition, the rainwater collection and utilization system of the utility model includes a water reservoir 1, a water pump 2 and a nozzle 9. The water reservoir 1 can be a metal tank body, or it can be made by digging a pit on the roadside. The water reservoir 1 of the present technical solution adopts a metal tank body structure. When in use, the water reservoir 1 can be installed under the ground of the green belt, or it can be installed in other locations that do not affect traffic. The water pump 2 is arranged in the water reservoir 1. The above-mentioned water pump 2 is a submersible pump, and the outer peripheral wall of the nozzle 9 is provided with a plurality of axially distributed nozzles 91. When the nozzle 91 is in action, it will spray outward when there is water pressure. A cover 101 is arranged on the top of the water reservoir 1. In specific implementation, the cover 101 and the water reservoir 1 can adopt a common structure of a manhole cover and a wellhead, that is, the cover 101 can be directly removed.

[0026] The present technical solution also includes a rain collector 3, an inlet transmission pipe 4 and an outlet transmission pipe 5. The rain collector 3 is arranged along the outlet transmission pipe 5. When in use, the rain collector 3 is located in a green belt with a certain height (such as holly) and is in a hidden state. This arrangement can effectively prevent branches, leaves and other debris of a certain volume from clogging the rain collector 3. It should be noted that since holly-like green belts are not prone to fallen leaves, and when fallen leaves occur, they are in a regular state, and are not easy to clog the rain collector 3.

[0027] Specifically, the rain collector 3 is provided with a rainwater collection cover 31 with an upward opening and a middle pipe 32 located in the middle of the rainwater collection cover 31. The nozzle 9 is located above the rainwater collection cover 31 and its outer peripheral wall is connected to the top of the middle pipe 32. Specifically, a positioning pipe can be welded to the outer peripheral wall of the sprinkler 9 to fix the positioning pipe and the top of the middle pipe 32. The function of the rainwater collection cover 31 is to collect rainwater directed downward by the leaves on the green belt, and the function of the middle pipe 32 is to transmit water to the nozzle 9. When in use, the nozzle 9 is located in the green belt and is also in a hidden state. An inlet pipe 311 and an outlet pipe 312 are provided at the bottom of the rainwater collection cover 31. The inlet pipe 311 and the outlet pipe 312 are respectively connected to the inner cavity of the rainwater collection cover 31 and the middle pipe 32. The bottoms of the inlet pipe 311 and the outlet pipe 312 are respectively fixedly connected to the inlet transmission pipe 4 and the outlet transmission pipe 5. Therefore, the rainwater collected by the rainwater collection cover 31 will be introduced into the inlet pipe 311 and then into the inlet transmission pipe 4. When the outlet transmission pipe 5 is drained outward, the rainwater in it will enter the middle pipe 32 and then pass through.

[0028] One end of the above-mentioned inlet transmission pipeline 4 is connected to the water reservoir 1 through a pipeline, the purpose is to guide the collected rainwater into the water reservoir 1, and one end of the outlet transmission pipeline 5 is connected to the water pump 2 through a pipeline. After the water pump 2 is started, the rainwater in the water reservoir 1 will be transmitted to the outlet transmission pipeline 5. When in use, the outlet transmission pipeline 5 and the inlet transmission pipeline 4 can be buried in the soil in the green belt. In specific implementation, the outer wall of the water reservoir 1 can be welded with a short pipe 11 and a short pipe 2 12 near the top. The short pipe 1 11 is connected to one end of the inlet transmission pipeline 4 through a pipeline, and one end of the short pipe 2 12 is connected to the water outlet of the water pump 2. The other end of the short pipe 2 12 is connected to one end of the outlet transmission pipeline 5 through a pipeline.

[0029] Specifically, the rainwater collection cover 31 is conical with the large end facing upwards, and an integrated and coaxial neck sleeve 313 is provided at the bottom of the rainwater collection cover 31, one end of the water inlet pipe 311 is fixedly connected to the outer peripheral wall of the neck sleeve 313 and the position close to the top, the bottom of the neck sleeve 313 is fixedly connected to the top of the water outlet pipe 312, and the bottom of the middle pipe 32 is fixedly connected to a sealing truncated cone 321 sleeved in the neck sleeve 313, and the bottom of the sealing truncated cone 321 is provided with a water hole 3211 connected to the inner cavity of the middle pipe 32. In specific implementation, the outer walls of the water inlet transmission pipeline 4 and the water outlet transmission pipeline 5 can be welded with a transfer pipe 1 and a transfer pipe 2, and the transfer pipe 1 and the transfer pipe 2 are connected to the water inlet pipe 311 and the water outlet pipe 312 respectively through adapters such as flanges and double-headed thread sleeves.

[0030] In this embodiment, a coaxial protective sleeve 316 is welded to the top of the rainwater collection cover 31, and a coaxial conical drainage cover 322 is fixedly sleeved on the middle tube 32. The large end of the conical drainage cover 322 faces downward and the outer edge of the large end and the bottom gap of the conical drainage cover 322 are matched. When collecting rainwater, the rainwater guided by the green belt blades will fall onto the conical drainage cover 322. The conical surface of the conical drainage cover 322 is provided with filter holes 3221 close to the outer edge of the large end and evenly distributed. At this time, the rainwater will pass through the filter holes 3221 into the rainwater collection cover 31, and finally enter the water storage tank 1 through the transmission of the water inlet pipe 311 and the water inlet transmission pipe 4.

[0031] Furthermore, the sealing truncated cone 321 and the neck sleeve 313 are slidably matched up and down, and the inner conical wall of the rainwater collection cover 31 is fixedly connected with a crossbar 314, and a guide sleeve 3141 sleeved on the outside of the middle tube 32 is welded in the middle of the crossbar 314, and a reset spring 6 located between the guide sleeve 3141 and the sealing truncated cone 321 is sleeved on the middle tube 32, and the reset spring 6 is used to push the sealing truncated cone 321 to move downward to the limit position. Among them, the outer peripheral wall of the sealing truncated cone 321 is provided with a coaxial annular groove 3212, and a sealing rubber ring 7 is sleeved in the annular groove 3212, and the power for the sealing truncated cone 321 to move upward is provided by water pressure. It should be noted that when the sealing cone 321 moves upward to the extreme position, it is in a state of blocking the water inlet pipe 311, preventing the water in the outlet pipe 312 from entering the water inlet pipe 311. The function of this setting is to raise the height of the debris accumulated on the outer edge of the conical drainage cover 322. When the debris is higher than the protective sleeve 316, it will fall. When spraying the green belt, the blockage near the filter hole 3221 can be cleared at the same time.

[0032] Furthermore, at least three flushing pipes 323 evenly distributed in the circumferential direction are welded to the outer wall of the middle pipe 32. The water outlet of the flushing pipe 323 is opposite to the top of the outer cone of the conical drainage cover 322. When the middle pipe 32 transmits water upward, part of the water will be discharged through the flushing pipe 323. The discharged water will flush the outer cone of the conical drainage cover (322), which can thoroughly clean the blockage on the conical drainage cover (322).

[0033] In this embodiment, a transfer valve 121 located outside the water reservoir 1 is fixedly connected to the outer peripheral wall of the short-circuit pipe 12. The transfer valve 121 can be a ball valve. The function of the transfer valve 121 is to act as a transfer joint for connecting a hose. When it is necessary to use rainwater in the water reservoir 1 to wash the road surface, the hose can be connected to the transfer valve 121 through a quick plug, and then the transfer valve 121 is opened to start the water pump 2. At this time, the hose will spray water outward.

[0034] For the construction of sponge cities, the most important thing is to make comprehensive use of ecological systems such as buildings, roads and green spaces to absorb, store and slowly release rainwater when it rains or when the rainfall is too heavy, so as to avoid overflow and destruction caused by excessive rainfall in a one-time area. In addition, rainwater cannot be discharged as sewage, and irrigation of urban vegetation and greening requires additional water, which will lead to waste. It is best to combine the two to achieve the dual purpose of absorption, collection and irrigation.

[0035] On rainy days, rainwater falls into the green belt, and part of the rainwater falls into the multiple rainwater collection covers 31 on the rainwater collection and utilization system under the convergence and drainage of the green belt blades, and flows into the reservoir 1 under the transmission of the water inlet pipe 311 and the water inlet transmission pipeline 4, thereby realizing the collection of rainwater.

[0036] When it is necessary to irrigate the green belt, start the water pump 2, the water in the water reservoir 1 will enter the water outlet transmission pipe 5, and then enter the neck sleeve 313. Under the action of water pressure, the sealing cone 321 moves upward, and the outer edge of the conical drainage cover 322 is flush with the top of the protective sleeve 316. At the same time, the rainwater in the neck sleeve 313 enters the nozzle 9 through the middle pipe 32, and is finally sprayed out by the nozzle 91. The sprayed water mist is confined in the green belt, thereby realizing the spray irrigation of the green belt.

[0037] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A rainwater collection and utilization system for sponge cities, characterized in that: The system comprises a water reservoir (1), a water pump (2) and a nozzle (9), wherein the water pump (2) is arranged in the water reservoir (1), the outer peripheral wall of the nozzle (9) is provided with a plurality of axially distributed nozzles (91), the top of the water reservoir (1) is provided with a cover (101), and further comprises a rain collector (3), a water inlet transmission pipeline (4) and a water outlet transmission pipeline (5), wherein the rain collector (3) is arranged along the water outlet transmission pipeline (5), the rain collector (3) is provided with a rainwater collection cover (31) with an opening facing upward and a middle pipe (32) located in the middle of the rainwater collection cover (31), and the nozzle (9) is located in the rainwater collection cover. The upper part of the rainwater collecting hood (31) and the outer peripheral wall thereof are connected to the top of the middle tube (32); the bottom of the rainwater collecting hood (31) is provided with a water inlet pipe (311) and a water outlet pipe (312); the water inlet pipe (311) and the water outlet pipe (312) are respectively communicated with the inner cavity of the rainwater collecting hood (31) and the middle tube (32); the bottoms of the water inlet pipe (311) and the water outlet pipe (312) are respectively fixedly connected to the water inlet transmission pipe (4) and the water outlet transmission pipe (5); one end of the water inlet transmission pipe (4) is connected to the water reservoir (1) via a pipeline; and one end of the water outlet transmission pipe (5) is connected to the water pump (2) via a pipeline.

2. A rainwater collection and utilization system for sponge cities according to claim 1, characterized in that: The rainwater collection cover (31) is conical in shape with the large end facing upwards. An integrated and coaxial neck sleeve (313) is provided at the bottom of the rainwater collection cover (31). One end of the water inlet pipe (311) is fixedly connected to the outer peripheral wall of the neck sleeve (313) at a position close to the top. The bottom of the neck sleeve (313) is fixedly connected to the top of the water outlet pipe (312). The bottom of the middle pipe (32) is fixedly connected to a sealing truncated cone (321) sleeved in the neck sleeve (313). The bottom of the sealing truncated cone (321) is provided with a water hole (3211) communicating with the inner cavity of the middle pipe (32).

3. A rainwater collection and utilization system for sponge cities according to claim 2, characterized in that: A coaxial protective sleeve (316) is welded to the top of the rainwater collection cover (31), and a coaxial conical drainage cover (322) is fixedly sleeved on the middle tube (32), wherein the large end of the conical drainage cover (322) faces downward and the outer edge of the large end is gap-matched with the bottom of the conical drainage cover (322), and the conical surface of the conical drainage cover (322) is provided with filtering holes (3221) close to the outer edge of the large end and evenly distributed.

4. The rainwater collection and utilization system for sponge city according to claim 3 is characterized in that: The sealing truncated cone (321) and the necking sleeve (313) are slidably matched up and down; the inner conical wall of the rainwater collecting cover (31) is fixedly connected to a crossbar (314); a guide sleeve (3141) sleeved on the outside of the middle tube (32) is welded to the middle part of the crossbar (314); and a return spring (6) located between the guide sleeve (3141) and the sealing truncated cone (321) is sleeved on the middle tube (32).

5. A rainwater collection and utilization system for sponge cities according to claim 4, characterized in that: The outer peripheral wall of the sealing truncated cone (321) is provided with a coaxial annular groove (3212), and a sealing rubber ring (7) is sleeved in the annular groove (3212).

6. The rainwater collection and utilization system for sponge city according to claim 4 is characterized in that: At least three scouring pipes (323) evenly distributed in the circumferential direction are welded to the outer peripheral wall of the middle pipe (32), and the water outlets of the scouring pipes (323) are located opposite to the top of the outer cone surface of the conical drainage cover (322).

7. The rainwater collection and utilization system for sponge city according to claim 1 is characterized in that: The outer wall of the water storage tank (1) is welded with a short pipe 1 (11) and a short pipe 2 (12) near the top; the short pipe 1 (11) is connected to one end of the water inlet transmission pipeline (4) via a pipeline; one end of the short pipe 2 (12) is connected to the water outlet of the water pump (2); the other end of the short pipe 2 (12) is connected to one end of the water outlet transmission pipeline (5) via a pipeline; and a transfer valve (121) located outside the water storage tank (1) is fixedly connected to the outer peripheral wall of the short pipe 2 (12).

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