A solar energy and potential energy wastewater recycling system

Abstract

The invention discloses a solar energy and potential energy wastewater recycling and reuse system, which is modified on the original water pipeline, including a water inlet pipeline, a No. 1 U-shaped pipeline, a No. 2 U-shaped pipeline, a sewage pipeline, a water pump, a water pump, a wastewater inlet pipe, a water pump, a wastewater supply pipeline, a water supply main pipeline, a toilet flushing pipeline for tap water, a one-way valve, and a toilet flushing pipeline. The water inlet pipeline is connected to a hand-washing pool drainage pipeline, and the other end of the water inlet pipeline is connected to one end of the No. 1 U-shaped pipeline, and the other end of the No. 1 U-shaped pipeline is connected to the sewage pipeline; an interface connected to one end of the water pumping pipeline is arranged on the lower side of the middle of the No. 2 U-shaped pipeline, and the other end of the water pumping pipeline is connected to the inside of the water tank; the No. 1 U-shaped pipeline can filter large particles in the wastewater. The system collects the wastewater used in the upper floor of the public building and uses it as water for flushing toilets on the adjacent floor or the lower floor, thereby improving the utilization rate of water resources.

Description

Technical Field

[0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a solar energy and potential energy wastewater recycling system. Background Art

[0002] Freshwater resources are very limited. The total amount of freshwater resources in my country is only 1 / 4 of the world average. The actual amount of freshwater resources available is one of the 13 countries with the poorest per capita water resources in the world. The water consumption of urban residents accounts for 1 / 10 of the total water consumption in my country. The flow of people in public places such as schools and apartments is large, and the outflowing wastewater is mostly discharged directly into the sewer pipes and is not fully utilized. This not only increases the workload of sewage treatment units and increases the primary investment cost, but also increases energy consumption. More importantly, it wastes precious water resources. In order to improve the utilization rate of water resources, the used wastewater with low pollution level, such as hand washing water and washing water, will be collected and used as water for flushing toilets on adjacent floors or this floor, thereby saving water resources.

[0003] Existing domestic wastewater recycling and reuse systems, such as CNIO8086415A, have the advantages of simple structure and easy use. After the domestic wastewater recycling and reuse system is filtered through layers of treatment, the hair that is difficult to remove from the water is also filtered out, and the filter screen and net bag used in the system are movable and detachable structures, which are easy to clean and replace; the disadvantage is that it mainly treats household wastewater and directly uses electricity resources, resulting in an increase in its operating cost, and the entire building is not made into a water recycling system; in addition, since the CNIO8086415A system treats household domestic wastewater, an additional water pump device is required to transport the treated wastewater to the toilet water inlet pipe and the mop water inlet pipe, which increases the electricity cost. Summary of the invention

[0004] In view of the deficiencies of the prior art, the present invention provides a solar energy and potential energy wastewater recycling and reuse system. The system is used in school dormitories or collective apartments or other places with concentrated traffic. It collects wastewater from the upper floor of the building, treats it, and then flushes the toilets on the lower floor. The system first filters the wastewater collected on the upper floor, and then diverts the filtered water to the generator. The water flows through the power generation device to drive the power generation turbine to rotate and generate electricity. The generated electricity is stored in the battery for standby use. When flushing, the wastewater enters the toilet flushing pipe and intersects with tap water to flush the toilet. The device is highly practical and has low operating costs. It not only realizes the reuse of domestic sewage, but also makes full use of energy, such as solar energy and electricity, which is of great significance to improving the current water resources situation in my country.

[0005] The technical solution of the present invention to solve the technical problem is to design a solar energy and potential energy wastewater recycling and reuse system, which is characterized in that the system is modified on the original water pipeline, including a water inlet pipeline, a No. 1 U-shaped pipeline, a No. 2 U-shaped pipeline, a sewage pipeline, a water pumping pipeline, a water tank, a wastewater inlet pipe, a water pump, a wastewater supply pipeline, a water supply main pipeline, a toilet flushing pipeline for tap water, a one-way valve, and a toilet flushing pipeline. The water inlet pipeline is connected to a hand-washing sink drainage pipeline, and the other end of the water inlet pipeline is connected to one end of the No. 1 U-shaped pipeline, and the other end of the No. 1 U-shaped pipeline is connected to the sewage pipeline; an interface connected to one end of the water pumping pipeline is provided on the lower side of the middle of the No. 2 U-shaped pipeline, and the other end of the water pumping pipeline is connected to the inside of the water tank; the No. 1 U-shaped pipeline can filter large particles in the wastewater;

[0006] The water tank comprises a water tank body, a float, a float limit barrel, a water tank top plate, and an ultrasonic distance measuring sensor. The float limit barrel is arranged in the middle of the water tank body, the top of the float limit barrel is flush with the top of the water tank body, a through hole communicating with the inside of the water tank body is arranged on the side of the float limit barrel, and the float is arranged inside the float limit barrel; the probe of the ultrasonic distance measuring sensor is fixedly installed on the lower surface of the water tank top plate, and the probe of the ultrasonic distance measuring sensor is vertically facing the bottom of the water tank body; a through hole is arranged on the top plate of the water tank at a position facing the float limit barrel, and is used to connect one end of the water pumping pipe to the float limit barrel, and the upper surface of the float matches the size of the through hole, and when the water inside the water tank body is pumped to a certain water level, the float blocks the through hole under the action of buoyancy and stops pumping water;

[0007] The lower part of the water tank body close to the main water supply pipeline is provided with an interface connected with one end of the wastewater inlet pipe, the other end of the wastewater inlet pipe passes through the floor of the current floor and is connected to the toilet flushing pipe downstairs, the part of the wastewater inlet pipe located on the current floor is provided with a water guide pipe connected with the water pump on the current floor, the other end of the water pump on the current floor is connected to the wastewater supply pipeline on the current floor, and the other end of the wastewater supply pipeline on the current floor is connected with the wastewater inlet pipe extending from the upper floor to the current floor; the main water supply pipeline on the current floor leads out tap water to enter the toilet flushing pipe, and the other end of the tap water entering the toilet flushing pipe is connected to the toilet flushing pipe on the current floor; a one-way valve is provided on the vertical pipe between the tap water entering the toilet flushing pipe and the toilet flushing pipe on the current floor, so that the water flow can only flow from a high place to a low place, ensuring that wastewater does not enter the tap water pipe; the toilet flushing pipe on the current floor is led out by the intersection of the wastewater inlet pipe upstairs and the tap water entering the toilet flushing pipe, and its end is connected with the toilet flushing point on the current floor.

[0008] Compared with the prior art, the present invention has the following beneficial effects:

[0009] 1. The system collects the wastewater used in the upper floors of public buildings and uses it as water for flushing toilets on adjacent floors or lower floors, thereby improving the utilization rate of water resources and achieving a good water-saving effect.

[0010] 2. The power supply of this system is to use the hydroelectric power generation part and the solar panel part to convert the potential energy and solar energy into electrical energy to power the water pump, thus saving energy.

[0011] 3. The float cooperates with the ultrasonic sensor to monitor the liquid level to prevent it from exceeding the highest water level of the water tank. A hole is punched on the float limit cylinder. The sewage first enters the hole and then enters the water tank through the hole, thereby further purifying the water. The water level can be monitored in real time and water can be transported to the lower layer, thus avoiding equipment damage caused by excessive equipment load.

[0012] 4. The setting of the one-way valve avoids sewage backflow and ensures the practicality and sustainable use of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The present invention is a schematic diagram of the installation of a solar energy and potential energy wastewater recycling system according to an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram (cross-sectional view) of a water tank structure of an embodiment of a solar energy and potential energy wastewater recycling and reuse system of the present invention.

[0015] Figure 3 The present invention is a circuit connection diagram of an embodiment of a solar energy and potential energy wastewater recycling and reuse system. DETAILED DESCRIPTION

[0016] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0017] The invention provides a solar energy and potential energy wastewater recycling and reuse system, which is suitable for a shared water environment, such as a public toilet. The system is modified on the original water pipeline, including a water inlet pipeline 1, a No. 1 U-shaped pipeline 2, a No. 2 U-shaped pipeline 3, a sewage pipeline 4, a water-drawing pipeline 5, a water tank 6, a wastewater inlet pipe 7, a hydroelectric power generation device 8, a water pump 9, a wastewater supply pipeline 10, a water supply main pipeline 11, a tap water entering a toilet flushing pipeline 12, a one-way valve 13, and a toilet flushing pipeline 14. The water inlet pipeline 1 is connected to a hand-washing sink drainage pipeline, and the other end of the water inlet pipeline 1 is connected to one end of the No. 1 U-shaped pipeline 2, and the other end of the No. 1 U-shaped pipeline 2 is connected to the sewage pipeline 4; an interface connected to one end of the water-drawing pipeline 5 is arranged on the lower side of the middle part of the No. 2 U-shaped pipeline 3, and the other end of the water-drawing pipeline 5 is connected to the inside of the water tank 6; the No. 1 U-shaped pipeline 2 can filter large particles in the wastewater.

[0018] The water tank 6 includes a water tank body, a float 61, a float limit barrel 62, a water tank top plate 63, and an ultrasonic distance sensor 64. The float limit barrel 62 is arranged in the middle of the water tank body, the top of the float limit barrel 62 is flush with the top of the water tank body, and a through hole communicating with the inside of the water tank body is arranged on the side of the float limit barrel 62. The float 61 is arranged inside the float limit barrel 62; the probe of the ultrasonic distance sensor 64 is fixedly mounted on the lower surface of the water tank top plate 63, and the probe of the ultrasonic distance sensor 64 is vertically facing the bottom of the water tank body; a through hole is arranged on the position of the water tank top plate 63 facing the float limit barrel 62 for connecting one end of the water pumping pipe 5 to the float limit barrel 62, and the upper surface of the float 61 matches the size of the through hole. When the water inside the water tank body is pumped to a certain water level, the float 61 blocks the through hole under the action of buoyancy to stop pumping water;

[0019] The waste water from the hand-washing pool first flows into the float stopper 62 of the water tank 6 through the water-drawing pipe 5. The float stopper 62 is a structure with holes on all sides. Large particles are retained in the stopper 62, and the filtered water flows into the water tank body from all sides of the float stopper 62. Due to the existence of the float 61, the top plate 63 of the water tank is always higher than the liquid level inside the water tank body, which effectively protects the ultrasonic sensor 64 installed on the lower surface of the top plate 63 of the water tank for measuring the liquid level. The model of the ultrasonic ranging sensor is HC-SR-04.

[0020] An interface connected to one end of the wastewater inlet pipe 7 is provided at the lower part of the water tank body near the main water supply pipe 11. The other end of the wastewater inlet pipe 7 passes through the floor of this floor and is connected to the toilet flushing pipe 14 downstairs. The part of the wastewater inlet pipe 7 located on this floor is provided with a water guide pipe connected to the water pump 9 on this floor. The other end of the water pump 9 on this floor is connected to the wastewater supply pipe 10 on this floor. The other end of the wastewater supply pipe 10 on this floor is connected to the wastewater inlet pipe 7 extending from the upper floor to this floor; the main water supply pipe 11 on this floor leads tap water into the toilet flushing pipe 1 2. The other end of the tap water entering the toilet flushing pipe 12 is connected to the toilet flushing pipe 14 on this floor; a one-way valve 13 is arranged on the vertical pipe between the tap water entering the toilet flushing pipe 12 and the toilet flushing pipe 14 on this floor, so that the water flow can only flow from high to low, ensuring that waste water will not enter the tap water pipe; the toilet flushing pipe 14 on this floor is led out from the intersection of the wastewater inlet pipe 7 upstairs and the tap water entering the toilet flushing pipe 12, and its end is connected to the toilet flushing point on this floor; the model of the water pump 9 is WQD5-5-0.37.

[0021] The hydroelectric turbine of the hydroelectric device 8 is located in the middle of the wastewater inlet pipe 7 of this floor, and the mounting frame is fixed on the ground of this floor; water flows in from the upper floor, flows through the hydroelectric device 8, drives the turbine to rotate and generates electricity, and the electricity is stored in the battery 162 for standby use; the solar panel 15 is installed on the roof of the school dormitory or building, and its output end is connected to the battery 162, and the generated electricity is stored in the battery 162;

[0022] The battery 162 is a 12V / 7AH UPS battery. The output voltage of the hydroelectric device 8 and the solar panel 15 can be directly stored in the battery through the wire, or a transformer coil can be installed in the middle of the wire to adjust the output voltage and store it in the battery; whether the input and output ends of the battery are equipped with a transformer is determined according to the selected electrical equipment, and this technology belongs to the conventional technical means in this field.

[0023] The system also includes a control module, which is composed of four parts: an Arduino single-chip computer 161, a battery 162, a WiFi communication module 163, and a host computer 164. The ultrasonic distance sensor 64 and the water pump 9 on each floor are connected to the Arduino single-chip computer 161 through the WiFi communication module 163. The Arduino single-chip computer 161 collects data from the ultrasonic distance sensor 64 in real time and sends the data to the host computer 164. The host computer 164 processes the data and displays the liquid level of each floor water tank 6 in real time. When the liquid level difference between the two floors is greater than one-third of the height of the water tank for a long time (such as four hours) due to uneven distribution of personnel, the Arduino single-chip computer 161 controls the water pump 9 to pump water from the lower floor to the higher floor. During the whole process, the battery 162 provides energy for the water pump 9 and the single-chip computer 161.

[0024] The model of the single chip microcomputer 161 is Arduino R3, and the model of the WiFi communication module 163 is USR-GPRS232-734.

[0025] The working principle and working process of the system of the present invention: the wastewater from the wash basin enters the No. 1 U-shaped pipe 2 to filter the large particles in the water, and then flows into the water tank 6 after being filtered again by the float limiter 62 to collect the wastewater. The water tank 6 controls the liquid level through the float 61. When the lower floor starts to use water, the water collected in the water tank 6 enters the hydroelectric device 8 through the wastewater inlet pipe 7, drives the hydroelectric turbine to rotate and generate electricity, which is stored in the battery 162, realizing the conversion of potential energy into electrical energy; the outflowing water enters the toilet inlet pipe of the next floor through the lower pipe 7 to flush the toilet. At the same time, the solar panel 15 on the roof also generates electricity, which is stored in the battery 162. The ultrasonic ranging sensor 64 can measure the liquid level distance, transmit the data to the Arduino microcontroller 161 through the WiFi communication module 163, and the Arduino microcontroller 161 sends the data to the host computer 164. After processing by the host computer 164, the actual volume in the water tank can be obtained, and the volume comparison can be used to determine whether water needs to be transferred to the upper floor.

[0026] Example 1

[0027] This embodiment provides a solar energy and potential energy wastewater recycling system, which is suitable for homes or schools. Each floor is approximately 3.4 meters high and uses a water pump with a head of 5 meters (a water pump model WQD5-5-0.37 can be selected), as shown in Table 1.

[0028] Table 1 Model parameters of water pump

[0029]

[0030] Estimation of water consumption: The water used by a person in a washbasin in a day: 1 liter for brushing teeth, 1 liter for shaving, 2 liters for washing hands, 29 liters for washing clothes + other ≈ 40 liters; the water used for flushing the toilet once: 3 liters for urination, 5 liters for defecation, which is approximately 4 liters; the ratio of hand washing water to toilet flushing water after two filtrations is approximately 1:1.

[0031] Select a 150W monocrystalline solar panel power generation system, and see 2 for specific parameters.

[0032] Table 2 Solar panel parameters

[0033]

[0034] The density of pure sewage is 1g / cm^3, that is, 1000kg / m^3. Assume: length of water trough: length of water tank = 2:1, width of water trough: width of water tank = 1:0.8, height of water trough: height of water tank = 2:1.

[0035] The economic benefits of using the system of the present invention in residential areas and schools are estimated below, see Table 3 and Table 4.

[0036] Table 3 Cost calculation of family residential quarters

[0037]

[0038] Table 4 School cost calculation

[0039]

[0040]

[0041] The solar energy and potential energy wastewater recycling and reuse system of the present invention can effectively utilize wastewater and solar energy and save living costs. The above embodiment is only calculated based on a single floor as an example. The system of the present invention is used in densely populated residential areas, and its comprehensive economic benefit advantage is significant and easy to promote and apply.

[0042] Any matters not described in the present invention are applicable to the prior art.

Claims

1. A solar energy and potential energy wastewater recycling system, characterized in that: The system is modified on the original water pipeline, including a water inlet pipe, a No. 1 U-shaped pipe, a No. 2 U-shaped pipe, a sewage pipe, a water drawing pipe, a water tank, a wastewater inlet pipe, a water pump, a wastewater supply pipe, a water supply main pipe, a toilet flushing pipe for tap water, a one-way valve, and a toilet flushing pipe. The water inlet pipe is connected to a hand-washing pool drainage pipe, and the other end of the water inlet pipe is connected to one end of the No. 1 U-shaped pipe, and the other end of the No. 1 U-shaped pipe is connected to the sewage pipe; an interface connected to one end of the water drawing pipe is arranged on the lower side of the middle of the No. 2 U-shaped pipe, and the other end of the water drawing pipe is connected to the inside of the water tank; the No. 1 U-shaped pipe can filter large particles in the wastewater; The water tank comprises a water tank body, a float, a float limit barrel, a water tank top plate, and an ultrasonic distance measuring sensor. The float limit barrel is arranged in the middle of the water tank body, the top of the float limit barrel is flush with the top of the water tank body, a through hole communicating with the inside of the water tank body is arranged on the side of the float limit barrel, and the float is arranged inside the float limit barrel; the probe of the ultrasonic distance measuring sensor is fixedly installed on the lower surface of the water tank top plate, and the probe of the ultrasonic distance measuring sensor is vertically facing the bottom of the water tank body; a through hole is arranged on the top plate of the water tank at a position facing the float limit barrel, and is used to connect one end of the water pumping pipe to the float limit barrel, and the upper surface of the float matches the size of the through hole, and when the water inside the water tank body is pumped to a certain water level, the float blocks the through hole under the action of buoyancy and stops pumping water; The lower part of the water tank body close to the main water supply pipeline is provided with an interface connected with one end of the wastewater inlet pipe, and the other end of the wastewater inlet pipe passes through the floor of the current floor and is connected to the toilet flushing pipe downstairs. The part of the wastewater inlet pipe located on the current floor is provided with a water guide pipe connected with the water pump on the current floor, and the other end of the water pump on the current floor is connected to the wastewater supply pipeline on the current floor, and the other end of the wastewater supply pipeline on the current floor is connected with the wastewater inlet pipe extending from the upper floor to the current floor; the main water supply pipeline on the current floor leads tap water into the toilet flushing pipe, and the other end of the tap water entering the toilet flushing pipe is connected to the toilet flushing pipe on the current floor; a one-way valve is provided on the vertical pipe between the tap water entering the toilet flushing pipe and the toilet flushing pipe on the current floor, so that the water flow can only flow from a high place to a low place, ensuring that wastewater does not enter the tap water pipe; the toilet flushing pipe on the current floor is led out from the intersection of the wastewater inlet pipe upstairs and the tap water entering the toilet flushing pipe, and its end is connected with the toilet flushing point on the current floor; The system also includes a hydroelectric device and a solar panel. The hydroelectric turbine of the hydroelectric device is located in the middle of the wastewater inlet pipe of the current floor, and the mounting frame is fixed on the ground of the current floor. Water flows in from the upper floor, flows through the hydroelectric device, drives the turbine to rotate and generates electricity, and the electricity is stored in the battery for standby use. The solar panel is installed on the roof, and its output end is connected to the battery, and the generated electricity is stored in the battery. The system also includes a control module, which consists of four parts: an Arduino single-chip microcomputer, a battery, a WiFi communication module, and a host computer. The ultrasonic ranging sensor and water pump on each floor are connected to the Arduino single-chip microcomputer through the WiFi communication module. The Arduino single-chip microcomputer collects data from the ultrasonic ranging sensor in real time and sends the data to the host computer. The host computer processes the data and displays the liquid level of each water tank in real time. When the liquid level difference between two floors is greater than one-third of the water tank height for four hours due to uneven distribution of personnel, the Arduino single-chip microcomputer controls the water pump to pump water from the lower floor to the higher floor.

2. A solar energy and potential energy wastewater recycling system according to claim 1, characterized in that: The model of the water pump is WQD5-5-0.

37.

3. The solar energy and potential energy wastewater recycling system according to claim 1 is characterized in that: The model of the ultrasonic distance measuring sensor is HC-SR-04.

4. The solar energy and potential energy wastewater recycling system according to claim 1 is characterized in that: The storage battery is a 12V / 7AH UPS storage battery.

5. The solar energy and potential energy wastewater recycling system according to claim 1 is characterized in that: The model of the single chip microcomputer is Arduino R3.

6. The solar energy and potential energy wastewater recycling system according to claim 1 is characterized in that: The model of the WiFi communication module is USR-GPRS232-734.

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