Rainwater collecting, purifying and recycling integrated equipment

Abstract

The utility model provides rainwater collecting, purifying and recycling integrated equipment which comprises a collecting system, a purifying system and a storage system which are sequentially connected from top to bottom, an outlet of the purifying system is communicated with an inlet of the storage system, one end of an outlet of the storage system is connected with a recycling system, and the collecting system comprises a rainwater collecting opening and a flow guide pipeline. The purification system comprises a precipitation filter tank, an activated carbon adsorption tank and an ultraviolet disinfection device which are sequentially and transversely connected in series through pipelines, an inlet of the precipitation filter tank is connected with an outlet of the collection system, and an outlet of the ultraviolet disinfection device is connected with an inlet of the storage system. The rainwater collecting and recycling device has the advantages that the rainwater collecting and recycling device adopts an integrated structure of the collecting system, the purifying system, the storage system and the recycling system, can collect rainwater efficiently, has the advantages of being compact in structure and high in equipment integration level, purifies the rainwater to meet the water quality standard of various harsh use scenes by means of the unique purifying system, and improves the utilization rate of the rainwater. Meanwhile, the device has the remarkable advantages of small occupied space, simple installation and maintenance and the like.

Description

TECHNICAL FIELD

[0001] The utility model mainly relates to water resource utilization equipment technical field, concretely relates to a rainwater collection purification and recycling integrated equipment. BACKGROUND

[0002] Rainwater is a kind of natural, high-quality freshwater resource, and its effective collection and utilization are of great significance to alleviate urban water pressure, however, the traditional rainwater collection and utilization mode has many deficiencies.

[0003] On the one hand, the purification link is weak, and the rainwater collected simply contains a large amount of impurities, which easily blocks the sprinkler head when used for irrigating green plants, affecting the irrigation effect, and when used for flushing, the uncleaned rainwater may corrode the pipeline, shortening the service life of the pipeline; on the other hand, the existing rainwater collection equipment is isolated in function, and lacks system integration between equipment, not only occupying a large area, but also being extremely inconvenient to install and maintain, which is difficult to meet the needs of modern urban space compactness and efficient operation.

[0004] It should be noted that the above content belongs to the technical cognition of the inventor, and due to the vast and complex technical content in the field, the above content of the present application does not necessarily constitute the prior art. CONTENT OF THE UTILITY MODEL

[0005] 1. Technical problem to be solved by the utility model:

[0006] The utility model provides a rainwater collection purification and recycling integrated equipment to solve the technical problems in the above background technology.

[0007] 2. Technical scheme:

[0008] To achieve the above purpose, the utility model provides a technical scheme: a rainwater collection purification and recycling integrated equipment, comprising a collection system, a purification system and a storage system connected in sequence from top to bottom, the outlet of the purification system is communicated with the inlet of the storage system, and the outlet of the storage system is connected with a recycling system, wherein the collection system comprises a rainwater collection port and a flow guide pipeline, the purification system comprises a sedimentation filter tank, an activated carbon adsorption tank and an ultraviolet disinfection device connected in sequence through pipelines, the inlet of the sedimentation filter tank is connected with the outlet of the collection system, the outlet of the ultraviolet disinfection device is connected with the inlet of the storage system, the storage system is a cylindrical water storage tank, and a liquid level sensor is arranged in the water storage tank.

[0009] Further, three layers of filter screens are sequentially arranged in the sedimentation and filtration tank along the water flow direction, the filter screen aperture decreases sequentially from the water inlet end to the water outlet end, the three layers of filter screens are horizontally and spacedly distributed, the lower end of the filter screen is provided with an inverted conical sedimentation area, a sewage outlet is arranged at the bottom of the sedimentation area, the sewage outlet is connected to an external sewage valve through a pipeline, and the outlet of the sedimentation and filtration tank is arranged on the side wall of the sedimentation area.

[0010] Further, the activated carbon adsorption tank is a cylindrical cavity, which is internally filled with a granular activated carbon layer, the height of the activated carbon layer accounts for 1 / 2 of the height of the internal cavity of the activated carbon adsorption tank, a porous water distribution plate is arranged at the water inlet end of the activated carbon adsorption tank, and an annular water collecting weir is arranged at the water outlet end of the activated carbon adsorption tank.

[0011] Further, the annular water collecting weir is a trapezoidal structure, a water outlet pipe is connected to the center of the bottom of the annular water collecting weir, and the center line of the water outlet pipe coincides with the axis of the activated carbon adsorption tank.

[0012] Further, the ultraviolet disinfection device is a rectangular cavity, and a plurality of ultraviolet lamp tubes are arranged in parallel in the cavity.

[0013] Further, the inner wall of the rainwater collecting opening is provided with a coarse filter screen one and a coarse filter screen two from top to bottom, and the coarse filter screen one and the coarse filter screen two are metal meshes.

[0014] Further, the flow guide pipeline is connected to the outlet of the rainwater collecting opening in an inclined manner, the included angle between the flow guide pipeline and the horizontal plane is 15°-25°, and a flow regulating valve is arranged on the flow guide pipeline.

[0015] Further, the recycling system comprises two water outlet pipelines arranged in parallel, the two water outlet pipelines are a toilet flushing water pipeline and an irrigation water pipeline respectively, and a water quality monitor and an electric flow control valve are sequentially arranged on the water outlet pipelines.

[0016] Further, the connecting pipelines between the collecting system and the purification system, the purification system and the storage system, and the storage system and the recycling system are all flange-connected.

[0017] 3. Beneficial effects:

[0018] Compared with the prior art, the technical scheme has the following beneficial effects:

[0019] Excellent purification performance: relying on the multi-stage deep purification process of sedimentation filtration, activated carbon adsorption and ultraviolet disinfection, it can remove impurities, odors, pigments, heavy metal ions and bacteria, viruses and other pollutants in rainwater in all directions and in depth, so that the purified rainwater can reach a very high water quality standard, and can be widely used in flushing, irrigation, car washing and even part of the industrial production auxiliary water and other multiple scenes, greatly improving the utilization value of rainwater;

[0020] High degree of functional integration: rainwater collection, purification, storage and reuse functions are organically integrated, reducing the cumbersome connecting components between multiple independent devices, significantly compressing the occupied area and improving the overall integration of the device. The device structure is more compact, and the installation and maintenance work is more convenient and efficient;

[0021] Significant water-saving and environmental benefits: effectively recycling rainwater resources, greatly reducing dependence on urban tap water, reducing the pressure on urban water supply systems, and achieving water-saving goals. At the same time, reducing the pollution caused by untreated rainwater directly discharged to the environment has good ecological and environmental benefits.

[0022] It should be noted that the structures not introduced in the present application are the same as or can be implemented by the prior art, and are not described here. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a schematic view of the overall structure of the present application;

[0024] Figure 2 is a cross-sectional view of the collection system of the present application;

[0025] Figure 3 is a cross-sectional view of the sedimentation filter tank structure of the present application;

[0026] Figure 4 is a cross-sectional view of the activated carbon adsorption tank structure of the present application.

[0027] REFERENCE NUMERALS:

[0028] 1, rainwater collection port; 101, coarse filter screen one; 102, coarse filter screen two; 2, water quality monitor; 3, electric flow control valve; 4, sedimentation filter tank; 401, filter screen; 402, sedimentation zone; 403, sewage outlet; 5, activated carbon adsorption tank; 501, activated carbon layer; 502, porous water distribution plate; 503, annular water collecting weir; 504, water outlet pipe; 6, ultraviolet disinfection device; 7, flow guide pipe; 8, flow regulating valve; 9, water outlet pipe; 10, water storage tank. DETAILED DESCRIPTION

[0029] To facilitate understanding of this utility model, a more comprehensive description of the utility model will be given below with reference to the accompanying drawings, which show several embodiments of the utility model. However, the utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of the utility model will be more thorough and complete.

[0030] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "page", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0031] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0032] In this utility model, unless otherwise explicitly specified and limited, the terms "installed," "connected," "linked," "fixed," "provided with," and "located in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Example

[0033] See attached document Figures 1-4 The integrated rainwater collection, purification, and reuse equipment includes a collection system, a purification system, and a storage system connected sequentially from top to bottom. The outlet of the purification system is connected to the inlet of the storage system, and one end of the outlet of the storage system is connected to the reuse system. The collection system includes a rainwater collection port 1 and a diversion pipe 7. The purification system includes a sedimentation filter tank 4, an activated carbon adsorption tank 5, and an ultraviolet disinfection device 6 connected in series horizontally through pipes. The inlet of the sedimentation filter tank 4 is connected to the outlet of the collection system, and the outlet of the ultraviolet disinfection device 6 is connected to the inlet of the storage system. The storage system is a cylindrical water storage tank 10, and a liquid level sensor is installed inside the water storage tank 10.

[0034] Three layers of filter screens 401 are arranged in the sedimentation and filtration tank 4 in sequence along the water flow direction, the pore sizes of the filter screens 401 decrease from the water inlet end to the water outlet end, the three layers of filter screens 401 are horizontally and spacedly arranged, the three layers of filter screens 401 have different pore sizes and are arranged in a gradient distribution from the large pore size to the small pore size, so that different particle impurities can be gradually intercepted; a reverse tapered sedimentation area 402 is arranged at the lower end of the filter screen 401, the sedimentation area 402 adopts an optimized water conservancy design structure, through a unique water flow path and a residence time setting, smaller particle impurities can be fully precipitated, so that efficient preliminary purification is realized, a sewage outlet 403 is arranged at the bottom of the sedimentation area 402, the sewage outlet 403 is connected to an external sewage valve through a pipeline, the outlet of the sedimentation and filtration tank 4 is arranged on the side wall of the sedimentation area 402, the height of the outlet of the sedimentation and filtration tank 4 is higher than the height of the sewage outlet 403, and the outlet of the sedimentation and filtration tank 4 is arranged in a staggered manner with the sewage outlet 403 in the horizontal direction, the center height of the outlet of the sedimentation and filtration tank 4 is 20-30 cm higher than the center height of the sewage outlet 403, and the horizontal distance between the two is 10-15 cm, so that a vertical height difference is formed, the 60°-90° taper angle of the reverse tapered sedimentation area 402 is used to make the impurities naturally gather to the bottom center, and the sewage outlet 403 is located at the lowest point of the taper, so that the sediment can be efficiently discharged.

[0035] The activated carbon adsorption tank 5 is a cylindrical cavity, which is filled with a granular activated carbon layer 501, the height of the activated carbon layer 501 accounts for 1 / 2 of the height of the internal cavity of the activated carbon adsorption tank 5, the activated carbon layer 501 has a rich and developed void structure and a large specific surface area, after the rainwater filtered by the sedimentation and filtration tank 4 flows in, the activated carbon can strongly adsorb odor molecules, pigments and part of heavy metal ions in the rainwater by physical adsorption, so as to further improve the water quality purity; a porous water distribution plate 502 is arranged at the water inlet end of the activated carbon adsorption tank 5, and a ring-shaped water collecting weir 503 is arranged at the water outlet end of the activated carbon adsorption tank 5, the porous water distribution plate 502 is uniformly provided with water distribution holes with a diameter of 2-5 mm, the distribution positions of the water distribution holes of the porous water distribution plate 502 match the ring-shaped water collecting weir 503, and the special water distribution and water collecting structure of the porous water distribution plate 502 and the ring-shaped water collecting weir 503 can ensure that the rainwater and the activated carbon are fully contacted, so as to improve the adsorption efficiency.

[0036] The ring-shaped water collecting weir 503 has a trapezoidal structure, the center of the bottom of the ring-shaped water collecting weir 503 is connected with a water outlet pipe 504, the center line of the water outlet pipe 504 coincides with the axis of the activated carbon adsorption tank 5, and the top of the weir plate of the ring-shaped water collecting weir 503 has a certain gap with the upper surface of the activated carbon layer 501.

[0037] The ultraviolet disinfection device 6 is a rectangular cavity, a plurality of ultraviolet lamps are arranged in parallel inside, ultraviolet rays of specific wavelength are emitted, DNA or RNA structure of microorganisms such as bacteria and viruses in rainwater can be effectively destroyed, so that the microorganisms are killed, and it is ensured that the purified rainwater meets strict sanitary standards. The ultraviolet lamp is further provided with a quartz sleeve with high light transmittance and anti-fouling ability, so as to ensure high efficient penetration of ultraviolet rays and sterilization effect.

[0038] The collection system is composed of the rainwater collection port 1 and the flow guide pipeline 7. The inner wall of the rainwater collection port 1 is provided with a first coarse filter screen 101 and a second coarse filter screen 102 arranged from top to bottom. The first coarse filter screen 101 and the second coarse filter screen 102 are metal grids. The first coarse filter screen 101 is arranged near the inlet of the rainwater collection port 1, and the second coarse filter screen 102 is arranged near the connection of the flow guide pipeline 7. The rainwater collection port 1 is funnel-shaped, which can maximize the collection area. The two coarse filter screens can accurately intercept large impurities in the rainwater, such as infusion, branches and stones. The flow guide pipeline 7 is connected to the outlet of the rainwater collection port 1 in an inclined manner. The angle between the flow guide pipeline 7 and the horizontal plane is 15°-25°. The flow guide pipeline 7 is provided with a flow regulating valve 8. The smooth flow of rainwater can be ensured by the inclination angle of the flow guide pipeline 7. The flow of rainwater can be controlled by the flow regulating valve 8 according to the real-time rainfall and the system carrying capacity.

[0039] The storage system adopts a closed water storage tank 10. The water storage tank 10 is made of special materials with high strength and corrosion resistance to ensure safety and stability during long-term use. The water storage tank 10 is seamlessly connected to the outlet of the purification system for storing high-quality purified rainwater. A high-precision liquid level sensor is installed inside the water storage tank 10 to monitor the water level in the tank in real time and accurately, and quickly transmit the water level signal to the relevant control module. When the water level reaches the preset upper limit, the control mechanism is automatically triggered to close the flow regulating valve 8 of the rainwater collection port 1 to stop rainwater collection. When the water level drops to the preset lower limit, the system immediately sends an alarm to remind the user to take measures such as supplementing water sources or reasonably allocating water use.

[0040] The recycling system includes two parallelly arranged water outlet pipelines 9, which are a toilet flushing water pipe and an irrigation water pipe respectively. A water quality monitor 2 and an electric flow control valve 3 are arranged in sequence on the water outlet pipeline 9. The two water outlet pipelines 9 correspond to different water terminal ends. One is used to connect the toilet flushing pipeline in the building and is used for toilet flushing water, and the other is used to connect the outdoor irrigation system to meet the needs of plant irrigation. The water quality is detected in real time by the water quality monitor 2, and the electric flow control valve 3 can adjust the water output according to the actual water demand to realize the rational use of water resources.

[0041] When installing the equipment, the collection system should carefully select the installation location of the rainwater collection port according to the actual layout of the building and the surrounding terrain. It can be installed on the roof, ensuring that it is located at the lowest point of the roof where rainwater converges, and is fixed by a firm installation assembly to resist the influence of strong winds and other bad weather. It can also be installed on the ground, selecting an area with low terrain where rainwater is easy to converge, and setting up comprehensive protection facilities to prevent debris from entering the rainwater collection port.

[0042] Install the flow guide pipe, with one end tightly and sealingly connected to the rainwater collection port, and the other end connected to the water inlet of the sedimentation and filtration tank at a precisely calculated inclination angle.

[0043] According to the purification process, install the sedimentation and filtration tank, activated carbon adsorption tank, and ultraviolet disinfection device in sequence. Connect the devices with special pipes, seal the connections with high-performance sealant to prevent water leakage. When installing the storage tank, choose a solid and flat ground, use a stable support structure to ensure smooth installation of the tank, and precisely connect and seal the water outlet of the ultraviolet disinfection device with the water inlet of the storage tank.

[0044] Connect the water outlet pipes of the recycling system to the toilet flushing pipeline and irrigation system, and other water-using equipment. At each water outlet, install a water quality monitor and a flow control valve.

[0045] The equipment operation steps are as follows:

[0046] When it rains, rainwater enters the flow guide pipe through the rainwater collection port. The coarse filter quickly intercepts large impurities, and the flow regulating valve flexibly adjusts the rainwater flow according to relevant control instructions, guiding the rainwater into the sedimentation and filtration tank.

[0047] In the sedimentation and filtration tank, rainwater is filtered through multiple layers of filter screens with different pore sizes, and fully settles in the sedimentation area. After preliminary purification, it flows into the activated carbon adsorption tank. Activated carbon plays an adsorption role, removing odors, pigments, and some heavy metal ions from rainwater.

[0048] Rainwater that has passed through activated carbon adsorption enters the ultraviolet disinfection device, where it is subjected to ultraviolet irradiation for sterilization and disinfection. Then, the purified rainwater flows into the storage tank.

[0049] The liquid level sensor monitors the water level in the storage tank in real time and quickly transmits the water level signal to the relevant control unit. When the water level reaches the upper limit, the automatic control mechanism starts, closing the flow regulating valve and stopping rainwater collection. When the water level drops to the lower limit, the system immediately sends an alarm.

[0050] When the recycling system is working, the water quality monitor detects the water quality of the outlet in real time, and the flow control valve adjusts the water output accurately according to the actual water demand; when used for flushing the toilet, the user presses the toilet flushing button, the corresponding control signal triggers the opening of the flow control valve of the outlet, and the purified rainwater flows into the toilet flushing pipeline to perform the toilet flushing operation; when used for irrigation, the flow control valve of the irrigation outlet can be automatically controlled to open and close according to the preset irrigation time or the feedback signal of the soil humidity sensor, so that intelligent automatic irrigation is realized.

[0051] In summary, the device can efficiently collect rainwater, purify the rainwater to meet the water quality standards of various harsh use scenarios by virtue of the unique purification system, and has the advantages of compact structure, small occupied space, simple installation and maintenance, etc.

[0052] The above-described embodiments only express certain implementation manners of the utility model, and the description is relatively specific and detailed, but it should not be understood as a limitation on the patent scope of the utility model; it should be pointed out that, for ordinary skilled persons in the art, some modifications and improvements can be made without departing from the concept of the utility model, and these all belong to the protection scope of the utility model; therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An integrated rainwater harvesting, purification, and reuse equipment, characterized in that: The system includes a collection system, a purification system, and a storage system connected sequentially from top to bottom. The outlet of the purification system is connected to the inlet of the storage system. One end of the outlet of the storage system is connected to a reuse system. The collection system includes a rainwater collection port (1) and a diversion pipe (7). The purification system includes a sedimentation filter tank (4), an activated carbon adsorption tank (5), and an ultraviolet disinfection device (6) connected in series horizontally through pipes. The inlet of the sedimentation filter tank (4) is connected to the outlet of the collection system. The outlet of the ultraviolet disinfection device (6) is connected to the inlet of the storage system. The storage system is a cylindrical water storage tank (10). A liquid level sensor is installed inside the water storage tank (10).

2. The integrated rainwater harvesting, purification, and reuse equipment according to claim 1, characterized in that: The sedimentation filter tank (4) is provided with three layers of filter screens (401) arranged sequentially along the water flow direction. The pore size of the filter screens (401) decreases sequentially from the inlet end to the outlet end. The three layers of filter screens (401) are horizontally spaced. The lower end of the filter screens (401) is provided with an inverted cone-shaped sedimentation zone (402). The bottom of the sedimentation zone (402) is provided with a sewage outlet (403). The sewage outlet (403) is connected to an external sewage valve through a pipe. The outlet of the sedimentation filter tank (4) is located on the side wall of the sedimentation zone (402). The height of the outlet of the sedimentation filter tank (4) is higher than the height of the sewage outlet (403), and it is horizontally offset from the sewage outlet (403).

3. The integrated rainwater harvesting, purification, and reuse equipment according to claim 1, characterized in that: The activated carbon adsorption tank (5) is a cylindrical cavity filled with a granular activated carbon layer (501). The height of the activated carbon layer (501) is 1 / 2 of the height of the cavity inside the activated carbon adsorption tank (5). The inlet end of the activated carbon adsorption tank (5) is provided with a porous water distribution plate (502), and the outlet end of the activated carbon adsorption tank (5) is provided with an annular water collection weir (503). The porous water distribution plate (502) has water distribution holes with a diameter of 2-5 mm evenly distributed.

4. The integrated rainwater harvesting, purification, and reuse equipment according to claim 3, characterized in that: The annular water collection weir (503) has a trapezoidal structure. A water outlet pipe (504) is connected to the center of the bottom of the annular water collection weir (503). The center line of the water outlet pipe (504) coincides with the axis of the activated carbon adsorption tank (5).

5. The integrated rainwater harvesting, purification, and reuse equipment according to claim 1, characterized in that: The ultraviolet disinfection device (6) is a rectangular cavity with multiple ultraviolet lamps arranged in parallel inside.

6. The integrated rainwater harvesting, purification, and reuse equipment according to claim 1, characterized in that: The inner wall of the rainwater collection port (1) has a coarse filter screen one (101) and a coarse filter screen two (102) arranged from top to bottom. The coarse filter screen one (101) and the coarse filter screen two (102) are metal meshes.

7. The integrated rainwater harvesting, purification, and reuse equipment according to claim 1, characterized in that: The diversion pipe (7) is inclinedly connected to the outlet of the rainwater collection port (1). The angle between the diversion pipe (7) and the horizontal plane is 15°-25°. The diversion pipe (7) is equipped with a flow regulating valve (8).

8. The integrated rainwater harvesting, purification, and reuse equipment according to claim 1, characterized in that: The reuse system includes two parallel water outlet pipes (9), which are a toilet flushing water pipe and an irrigation water pipe, respectively. A water quality monitor (2) and an electric flow control valve (3) are installed on the water outlet pipes (9) in sequence.

9. The integrated rainwater harvesting, purification, and reuse equipment according to claim 1, characterized in that: The connecting pipes between the collection system and the purification system, the purification system and the storage system, and the storage system and the reuse system are all connected by flanges.

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