CN221255929U - Roof rainwater utilization system - Google Patents

Abstract

The utility model relates to the technical field of rainwater recovery, in particular to a roof rainwater utilization system, which comprises a water receiving tank arranged on the low side of a building roof, a drainage pipe network arranged on the outer wall of the building, a filter mechanism and a water collecting tank, wherein the water receiving tank is arranged on the lower side of the building roof; the low level department in the water receiving tank is connected with the input of drainage pipe network through an anti-blocking water bucket, and the drainage pipe network has two output, and an output of drainage pipe network sets up in the escape canal of building bottom, and another output of drainage pipe network is connected with filtering mechanism's input, and filtering mechanism's output passes through the pipe and is connected with the input of header tank. In the utility model, rainwater is collected by utilizing the gravity of the rainwater and the height difference among all the components, and the collected rainwater is purified and stored to be used as domestic water in partial scenes; meanwhile, the protection cover rotates to stir substances with larger particle sizes accumulated nearby, so that the phenomenon that the water outlet of the water receiving tank is buried by sundries to reduce the flow rate or cut off is avoided.

Description

Roof rainwater utilization system

Technical Field

The utility model relates to the technical field of rainwater recovery, in particular to a roof rainwater utilization system.

Background

Rainwater is becoming an increasingly interesting source of green water, with the advantages of convenience, economy and cleanliness. The rainwater utilization is not only a way of open source throttling, but also an important measure for relieving or solving the problem of water shortage, and has the benefits of water saving, flood control and ecological environment.

Chinese patent application number: CN202123266766.9 "discloses" roofing rainwater utilization system; the roof rainwater collecting device is connected with the first filtering device through a first sewer pipe, and the first filtering device is connected with the second filtering device through a second sewer pipe; before roof rainwater is utilized, unified collection treatment is carried out on the roof rainwater. "

In the scheme that this patent provided, drain and assemble in filtering mechanism to the rainwater of roofing to carry out purification treatment to the roofing rainwater of collecting through filtering mechanism, so that reuse to the rainwater of collecting. However, the roof of a part of the building is easy to have sundries such as fallen leaves and branches, and a water receiving tank for converging rainwater is usually arranged at the low position of the roof of the building, and substances with larger particle diameters such as fallen leaves and branches are accumulated or gathered at a water outlet in the water receiving tank, so that the flow quantity of a water outlet of the water receiving tank is reduced or cut off.

Disclosure of utility model

The utility model mainly aims to provide a roof rainwater utilization system, which aims to solve the technical problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions:

The roof rainwater utilization system is characterized by comprising a water receiving tank arranged on the low side of a building roof, and a drainage pipe network, a filter mechanism and a water collecting tank which are arranged on the outer wall of the building; the low-level department in the water receiving tank is connected with the input of drainage pipe network through an anti-blocking water bucket, drainage pipe network has two output and one of them output sets up in the escape canal of building bottom, another output of drainage pipe network with filtering mechanism's input is connected, filtering mechanism's output pass through the pipe with the input of header tank is connected, the output of header tank is connected with the input of outside water facilities.

As a further improvement of the utility model, the water-permeable water-saving pipe comprises a protective cover and a supporting cylinder which are of cylindrical structures and are sealed at one end, water-permeable holes are formed in the side walls, close to the sealing ends, of the protective cover, at least two poking sheets are annularly arranged on the side walls of the protective cover along the axis of the protective cover, the opening ends of the protective cover are nested at the sealing ends of the supporting cylinder, a servo motor for driving the protective cover to rotate around the axis of the supporting cylinder is arranged in the supporting cylinder, and the opening ends of the supporting cylinder penetrate through the inner bottom surface to the outer bottom surface of the water-receiving tank and are connected with the input end of the water-draining pipe network.

As a further improvement of the utility model, the servo motor is arranged in the supporting cylinder, and a rotating shaft of the servo motor penetrates through a sealing end of the supporting cylinder and is coaxially connected with a sealing end of the protective cover; the side wall of the support cylinder, which is positioned at the opening end of the protective cover, is sleeved with an annular fixing plate, and the annular fixing plate is connected to the bottom plate of the water receiving tank through bolts.

As a further improvement of the utility model, the drainage pipe network comprises a main pipe, a first branch pipe and a second branch pipe which are arranged on the outer wall of the building; one end of the main pipe is connected with the opening end of the supporting cylinder, the other end of the main pipe is connected with one end of the first branch pipe and one end of the second branch pipe respectively through the adapter, the other end of the first branch pipe is connected with the input end of the filtering mechanism, the other end of the second branch pipe is arranged in a drainage ditch at the bottom of a building, and the first branch pipe and the end part, adjacent to the first branch pipe, of the second branch pipe are provided with a first control valve and a second control valve respectively.

As a further improvement of the utility model, the drainage pipe network further comprises a bypass pipe arranged on the outer wall of the building, one end of the bypass pipe is connected with the middle part of the main pipe, and the other end of the bypass pipe is arranged in a drainage ditch at the bottom of the building or connected with the middle part of the second branch pipe.

As a further improvement of the utility model, the roof rainwater utilization system further comprises a water flow sensor, wherein the water flow sensor is arranged on the main pipe and is used for sensing water flow in the main pipe and outputting signals.

As a further improvement of the utility model, the roof rainwater utilization system further comprises a liquid level sensor, wherein the liquid level sensor is arranged in the water collection tank and is used for sensing the inward water pressure of the water collection tank and outputting a signal.

As a further improvement of the present utility model, the roof rainwater utilization system further includes a tank sterilizer disposed inside the water collection tank and configured to sterilize water in the tank.

As a further improvement of the utility model, the roof rainwater utilization system further comprises a controller which is respectively and electrically connected with the servo motor, the first control valve, the second control valve, the water flow sensor, the liquid level sensor and the water tank sterilizer, wherein a plurality of control instructions are prestored in the controller, and the controller is used for receiving signals sent by the water flow sensor and the liquid level sensor, matching corresponding instructions to control the servo motor to do work after receiving the signal data, controlling the operation of the water tank sterilizer, and respectively controlling the opening or closing of the first control valve and the second control valve.

The utility model has the beneficial effects that:

In the utility model, the water receiving tank is arranged at the low side of the building roof, and the low position in the water receiving tank is connected with the input end of the drainage pipe network through the anti-blocking water bucket, so that the horizontal height difference exists among all the components. The gravity of rainwater autogenous and the height difference among all parts are utilized to gather and collect the rainwater, a filtering mechanism is used for purifying the collected water, a water collecting tank is used for storing the purified rainwater, and the water stored in the water collecting tank can be used as domestic water in partial scenes. Meanwhile, the side wall of the protective cover is annularly provided with at least two poking sheets along the axis, the protective cover is nested at the position of the supporting cylinder in the water receiving tank, the servo motor is driven to do work to drive the protective cover and the poking sheets to rotate together, and further, the sundries with larger particle sizes accumulated near the anti-blocking water bucket are stirred, so that the sundries with larger particle sizes are prevented from accumulating at the low position of the water receiving tank to cause unsmooth water drainage or flow interruption.

Drawings

FIG. 1 is a schematic diagram of a roof rainwater utilization system;

FIG. 2 is a schematic view of the anti-lock bucket of FIG. 1;

Reference numerals illustrate:

1. A water receiving tank; 2. anti-blocking water bucket; 21. a protective cover; 22 a support cylinder; 23. a water permeable hole; 24. a pulling piece; 25. a servo motor; 26. an annular fixing plate; 3. a drainage pipe network; 31. a main pipe; 32. a first branch pipe; 33. a second branch pipe; 34. a first control valve; 35. a second control valve; 36. a bypass pipe; 4. a filtering mechanism; 5. a water collection tank; 6. a water flow sensor; 7. a liquid level sensor; 8. a water tank sterilizer.

Detailed Description

The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the described embodiments are merely some, but not all embodiments of the present utility model. Embodiments of the utility model and features of the embodiments may be combined with each other without conflict. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Fig. 1 shows an embodiment of a roof rainwater utilization system according to the present utility model, referring to fig. 1, in which the roof rainwater utilization system includes a water receiving tank 1 provided at a lower side of a building roof, and a drainage pipe network 3, a filtering mechanism 4 and a water collecting tank 5 provided at an outer wall of the building;

Wherein, see fig. 1, low level department in the water receiving tank 1 sets up an anti-blocking water bucket 2, the output of anti-blocking water bucket 2 runs through the bottom surface of water receiving tank 1 back and is connected with the input of drainage pipe network 3, drainage pipe network 3 has two outputs and one of them output sets up in the escape canal of building bottom, another output of drainage pipe network 3 is connected with the input of filtering mechanism 4, the output of filtering mechanism 4 is connected with the input of header tank 5 through the pipe, the output of header tank 5 is connected with the input of outside water facility. Roof rainwater flows into the water receiving tank 1 under the action of gravity, and because the anti-blocking water bucket 2 is located at the low position inside the water receiving tank 1, rainwater in the water receiving tank 1 flows into the drainage pipe network 3 under the action of gravity, collected roof rainwater can be directly discharged into the drainage ditch under the diversion action of the drainage pipe network 3 and can also be drained to the filtering mechanism 4, the filtering mechanism 4 filters water passing through the roof rainwater and guides the filtered water to the water collecting tank 5 for storage, the water stored in the water collecting tank 5 can be used as part of domestic water, water cost and sewage disposal cost are reduced, waterlogging is avoided, ecological environment is improved, and good water saving efficiency and environmental benefit are achieved.

Further, referring to fig. 2, the anti-blocking water bucket 2 includes a protection cover 21 and a support cylinder 22, both of which are of cylindrical structure and are sealed at one end, water permeable holes 23 are formed in the side wall of the protection cover 21 and the side wall of the support cylinder 22 adjacent to the sealed end of the protection cover, at least two paddles 24 are annularly arranged on the side wall of the protection cover 21 along the axis of the protection cover, the open end of the protection cover 21 is nested at the sealed end of the support cylinder 22, a servo motor 25 is arranged in the support cylinder 22, a rotating shaft of the servo motor 25 penetrates through the sealed end of the support cylinder 22 and is coaxially connected with the sealed end of the protection cover 21, an annular fixing plate 26 is sleeved at the position of the side wall of the support cylinder 22 adjacent to the open end of the protection cover 21, and a round hole is formed in the annular fixing plate 26 and is connected to a bottom plate of the water receiving tank 1 through bolts. Rainwater in the water receiving tank 1 flows into the drainage pipe network 3 through the water permeable holes 23 of the protective cover 21 and the supporting cylinder 22, and substances (leaves, branches and the like) with larger particle sizes are intercepted in the water receiving tank 1 by the protective cover 21, so that the drainage pipe network 3 is prevented from being blocked. Meanwhile, when more sundries are accumulated near the protective cover 21, the motor is controlled to do work, the rotating shaft of the motor can drive the protective cover 21 to rotate around the axis of the protective cover, and as the supporting cylinder 22 is connected in the water receiving tank 1 through the fixed plate in a limiting mode, the protective cover 21 can stir the sundries near the protective cover 21 in the rotating process of the protective cover 21 around the axis of the protective cover, so that the sundries are prevented from accumulating at the water outlet of the water receiving tank 1.

Preferably, the water permeable holes 23 on the protective cover 21 and the supporting cylinder 22 are bar holes, and the width of the water permeable holes 23 on the supporting cylinder 22 is smaller than the width of the water permeable holes 23 on the protective cover 21.

Further, referring to fig. 1, the drainage network 3 includes a main pipe 31, a first branch pipe 32 and a second branch pipe 33 provided on an outer wall of a building, one end of the main pipe 31 is connected to an open end of the supporting cylinder 22, the other end of the main pipe 31 is connected to one ends of the first branch pipe 32 and the second branch pipe 33 through a joint, the other end of the first branch pipe 32 is connected to an input end of the filtering mechanism 4, the other end of the second branch pipe 33 is provided in a drainage ditch at the bottom of the building, the ends of the first branch pipe 32 and the second branch pipe 33 adjacent to the first branch pipe 32 are provided with a first control valve 34 and a second control valve 35, respectively, the first control valve 34 is used for controlling opening and closing of a path flowing from the main pipe 31 to the first branch pipe 32, and the second control valve 35 is used for controlling opening and closing of a path flowing from the main pipe 31 to the second branch pipe 33, so that collected rainwater is guided to the filtering mechanism 4 or directly discharged into the drainage ditch.

Preferably, the axes of the main pipe 31 and the second branch pipe 33 are perpendicular to the horizontal plane so that the collected water rapidly flows into the drain under the action of gravity; the horizontal position of the first branch pipe 32 adjacent to one end of the main pipe 31 is higher than the horizontal position of the first branch pipe adjacent to one end of the filtering mechanism 4, and the horizontal position of the output end of the filtering mechanism 4 is higher than the horizontal position of the input end of the water collecting tank 5, so that the collected water flows into the filtering mechanism 4 under the action of gravity, and the water filtered by the filtering mechanism 4 can automatically flow into the water collecting tank 5 under the action of gravity.

The initial state of the first control valve 34 is a normally closed state, and the initial state of the second control valve 35 is a normally open state.

Further, referring to fig. 1, the drainage pipe network 3 further includes a bypass pipe 36 disposed on the outer wall of the building, one end of the bypass pipe 36 is connected to the middle of the main pipe 31, and the other end of the bypass pipe 36 is connected to the second branch pipe 33 or disposed in the drainage ditch at the bottom of the building. When the paths of the main pipe 31 flowing to the first branch pipe 32 and the second branch pipe 33 are blocked, and the water level in the main pipe 31 is high to the position where the bypass pipe 36 is connected with the main pipe 31, roof rainwater can flow into the bypass pipe 36 and finally is discharged into the drainage ditch through the bypass pipe 36, so that the roof rainwater is prevented from accumulating in the water receiving tank 1, and the drainage safety of the whole system is ensured.

Further, the filtering mechanism 4 is a self-cleaning filter, which is a device widely applied in the water treatment industry, and the simple design and the good performance of the self-cleaning filter enable sewage to achieve the optimal filtering effect. The main components are as follows: the device comprises a motor, an electric cabinet, a control pipeline, a main pipe 31 assembly, a filter element assembly, a 316L stainless steel brush, a frame assembly, a transmission shaft, an inlet and outlet connecting flange and the like. The self-cleaning filter overcomes the defects of small sewage containing amount, easy blockage by sewage, disassembly and cleaning of a filtering part, incapability of monitoring the state of the filter and the like of the traditional filtering product, has the functions of filtering raw water and automatically cleaning and discharging sewage for the filter element, and the system continuously supplies water when the sewage is cleaned and discharged, so that the working state of the filter can be monitored, and the degree of automation is very high. Covering the need for various filtering accuracies from 10um to 3000 um.

The self-cleaning filter is in the prior art, and can automatically clean and filter and automatically discharge sewage without externally connecting any energy source. The back flushing is not interrupted, and the cleaning and filtering period can be adjusted. Can be installed at any position in any direction of vertical, horizontal and inverted directions.

Further, referring to fig. 1, the roof rainwater utilization system further includes a water flow sensor 6, where the water flow sensor 6 is disposed at one end of the main pipe 31 far away from the anti-blocking water bucket 2, the water flow sensor 6 senses water flow and outputs pulse signals or signals such as current and voltage, when flowing water passes through the main pipe 21, the signals output by the water flow sensor 6 change, and when no flowing water passes through the main pipe 31, the signals output by the water flow sensor 6 return to original values, so as to determine the opening or closing time of the first control valve 34 and the second control valve 35 according to the signals output by the water flow sensor 6.

Further, referring to fig. 1, the roof rainwater utilization system further includes a liquid level sensor 7, the liquid level sensor 7 is disposed in the water collection tank 5, the liquid level sensor 7 senses the static pressure of the liquid in the water collection tank 5 in real time by using the principle that the static pressure of the liquid is proportional to the height of the liquid and outputs a signal, and the actual liquid level in the water collection tank 5 can be known extremely by outputting the signal from the liquid level sensor 7, so as to know and control the water amount stored in the water collection tank 5, and judge the opening or closing timing of the first control valve 34 and the second control valve 35 according to the stored water amount.

Preferably, an anti-overflow liquid level is arranged in the water collection tank 5, when the actual liquid level in the water collection tank 5 is lower than the anti-overflow liquid level, a path of the drainage pipe network 3 flowing from the main pipe 31 to the first branch pipe 32 is controlled to be opened, and a path of the main pipe 31 flowing to the second branch pipe 33 is controlled to be closed, so that filtered rainwater is continuously collected inwards; when the actual liquid level in the water collection tank 5 is higher than the anti-overflow liquid level, the path of the drainage pipe network 3 from the main pipe 31 to the first branch pipe 32 is controlled to be closed, and the path from the main pipe 31 to the second branch pipe 33 is opened to stop collecting roof rainwater and to inject the roof rainwater into the drainage gutter.

Further, referring to fig. 1, the roof rainwater utilization system further includes a water tank sterilizer 8, the water tank sterilizer 8 is disposed inside the water collection tank 5, and the water tank sterilizer 8 is used for sterilizing water in the water tank to improve the collected water safety.

By way of example, the principle of operation of a roofing rainwater utilization system:

1. In the direct drainage process of roof rainwater, the roof rainwater is converged in the water receiving tank 1 under the action of gravity, water in the water receiving tank 1 enters the main pipe 31 through the anti-blocking water bucket 2, and the anti-blocking water bucket 2 intercepts sundries (leaves, branches and the like) with larger particle sizes in the roof rainwater and leaves the sundries in the water receiving tank 1 so as to prevent the drainage pipe network 3 from being blocked by the sundries; in the initial state, the first control valve 34 is closed, the second control valve 35 is opened, and the water entering the main pipe 31 flows from the main pipe 31 to the second branch pipe 33 and finally flows into the drainage ditch at the bottom of the building;

2. In the collecting process of roof rainwater, whether flowing water passes through the main pipe 31 or not is judged according to a signal output by the water flow sensor 6, after one end (such as 5 mm) of the flowing water passes through the main pipe 31, the first control valve 34 is controlled to be opened, the second control valve 35 is controlled to be closed, the roof rainwater flows from the main pipe 31 to the first branch pipe 32 and enters the filtering mechanism 4 under the action of gravity, and the roof rainwater flows to the water collecting tank 5 after being purified by the filtering mechanism 4; when the actual water level line in the water collecting tank 5 exceeds the anti-overflow water level, the first control valve 34 is controlled to be closed, the second control valve 35 is controlled to be opened, and roof rainwater is guided into the drainage ditch again. The water stored in the water collection tank 5 can be used as domestic water for a part of scenes. When water is stored in the water collecting tank 5, the operation of the water tank sterilizer 8 is controlled at intervals to ensure that the water stored in the water tank is always in the safe water use range.

In order to realize centralized control of each device, referring to fig. 1, the roof rainwater utilization system further includes a controller electrically connected to the servo motor 25, the first control valve 34, the second control valve 35, the water flow sensor 6, the liquid level sensor 7 and the water tank sterilizer 8 respectively, wherein a plurality of control instructions are pre-stored in the controller, the controller is used for receiving signals sent by the water flow sensor 6 and the liquid level sensor 7, and matching corresponding instructions to control the servo motor 25 to apply work after receiving the signal data, so as to control the operation of the water tank sterilizer 8, and respectively control the opening or closing of the first control valve 34 and the second control valve 35.

It should be noted that, the control principle of the controller is focused on in this embodiment, and the specific structure and the installation position of the controller are not focused on in this embodiment, and in the prior art, the specific structure and the installation position of the controller are not repeated in this embodiment; similarly, the working principles of the servo motor 25, the first control valve 34, the second control valve 35, the water flow sensor 6, the liquid level sensor 7 and the water tank sterilizer 8 are focused on in this embodiment, and the specific structure is not focused on in this embodiment, and is the prior art, and only the installation position of this embodiment is described, and the specific structure is not repeated.

In this embodiment, the water receiving tank 1 is arranged on the low-level side of the building roof, and the low-level part in the water receiving tank 1 is connected with the input end of the drainage pipe network 3 through the anti-blocking water bucket 2, so that a horizontal height difference exists between each component. The gravity of the rainwater autogenous and the height difference among all the components are utilized to gather and collect the rainwater, the filtering mechanism 4 is used for purifying the collected water, the water collection tank 5 is used for storing the purified rainwater, and the water stored in the water collection tank 5 can be used as domestic water in partial scenes. Meanwhile, the side wall of the protective cover 21 is annularly provided with at least two poking sheets 24 along the axis, the protective cover 21 is sleeved at the position of the supporting cylinder 22 in the water receiving tank 1, the servo motor 25 is driven to do work to drive the protective cover 21 and the poking sheets 24 to rotate together, and further, larger-particle-diameter sundries accumulated near the anti-blocking water bucket 2 are stirred, so that the phenomenon that the water drainage is unsmooth or cutoff is caused by accumulating the larger-particle-diameter sundries at the lower position of the water receiving tank 1 is prevented.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.

Claims (7)

1. The roof rainwater utilization system is characterized by comprising a water receiving tank arranged on the low side of a building roof, and a drainage pipe network, a filter mechanism and a water collecting tank which are arranged on the outer wall of the building; the low position in the water receiving tank is connected with the input end of the water drain pipe network through an anti-blocking water bucket, the water drain pipe network is provided with two output ends, one output end of the water drain pipe network is arranged in a drainage ditch at the bottom of a building, the other output end of the water drain pipe network is connected with the input end of the filtering mechanism, the output end of the filtering mechanism is connected with the input end of the water collecting tank through a guide pipe, and the output end of the water collecting tank is connected with the input end of an external water using facility;

The anti-blocking water bucket comprises a protection cover and a supporting cylinder, wherein the protection cover and the supporting cylinder are both of a cylindrical structure, one end of the protection cover is sealed, water holes are formed in the side wall of the protection cover, the side wall of the supporting cylinder is adjacent to the side wall of the sealing end of the protection cover, at least two poking sheets are annularly arranged on the side wall of the protection cover along the axis of the protection cover, the opening end of the protection cover is nested in the sealing end of the supporting cylinder, a servo motor for driving the protection cover to rotate around the axis of the supporting cylinder is arranged in the supporting cylinder, and the opening end of the supporting cylinder penetrates through the inner bottom surface to the outer bottom surface of the water receiving tank and is connected with the input end of a drainage pipe network.

2. The roof rainwater utilization system according to claim 1, wherein the servo motor is arranged in the supporting cylinder, and a rotating shaft of the servo motor penetrates through a sealing end of the supporting cylinder to be coaxially connected with a sealing end of the protective cover; the annular fixing plate is sleeved at a position, adjacent to the opening end of the protective cover, on the side wall of the supporting cylinder, a round hole is formed in the annular fixing plate and is connected to the bottom plate of the water receiving tank through a bolt.

3. The roofing rainwater utilization system of claim 1 wherein the drainage network comprises a main pipe, a first branch pipe, and a second branch pipe disposed on an exterior wall of a building; one end of the main pipe is connected with the opening end of the supporting cylinder, the other end of the main pipe is connected with one end of the first branch pipe and one end of the second branch pipe respectively through the adapter, the other end of the first branch pipe is connected with the input end of the filtering mechanism, the other end of the second branch pipe is arranged in a drainage ditch at the bottom of a building, and the first branch pipe and the end part, adjacent to the first branch pipe, of the second branch pipe are provided with a first control valve and a second control valve respectively.

4. A roof rainwater utilization system according to claim 3, wherein the drainage pipe network further comprises a bypass pipe arranged on the outer wall of the building, one end of the bypass pipe is connected with the middle part of the main pipe, and the other end of the bypass pipe is arranged in a drainage ditch at the bottom of the building or connected with the middle part of the second branch pipe.

5. A roof stormwater utilization system as claimed in claim 3, further comprising a water flow sensor disposed on the main pipe for sensing water flow in the main pipe and outputting a signal.

6. The roofing rainwater utilization system of claim 1, further comprising a level sensor disposed within the header tank, the level sensor configured to sense an inward water pressure of the header tank and output a signal.

7. The roofing rainwater utilization system of claim 1, further comprising a tank sterilizer disposed inside the water collection tank and configured to sterilize water in the tank.