CN105668919A - A green purification and reuse system for high-rise building domestic sewage and its control method - Google Patents

Abstract

The invention provides a high-rise building domestic sewage green purification and reuse system and a control method thereof. The system comprises: a rainwater-sewage power generation unit, a wind-solar complementary power generation unit, a storage battery power supply unit, a sewage disposal-sewage purification unit, a purified water reuse unit and a control unit. The system not only can fully utilize the characteristics of high-rise buildings, comprehensively utilizes wind energy, solar energy, rainwater and domestic sewage's mechanical energy, but also applies the green energy to a domestic sewage purification and reuse system, realizes purification and reuse of high-rise building domestic sewage, and maximumly recovers and utilizes various energy of high-rise buildings. With a simple structure, the system provided by the invention is convenient for transformation and installation of existing high-rise buildings, and also can effectively improve urban environment.

Description

A green purification and reuse system for high-rise building domestic sewage and its control method

technical field

The invention relates to a green purification and reuse system for domestic sewage in high-rise buildings, in particular to a green purification and reuse system for domestic sewage in high-rise buildings and a control method thereof, and belongs to the field of green energy-saving technology and domestic sewage treatment for high-rise buildings with 7 to 10 floors or more .

Background technique

Talking about the shortage of water resources in our country, the amount of fresh water resources per capita is only 25% of the world average. In recent years, with the continuous advancement of the urbanization process and the improvement of people's living standards, high-rise buildings that effectively improve the urban land use rate have become the main body of urban buildings, and the scale of cities is also increasing, and the population density is also increasing, which also leads to The sharp increase in the demand for fresh water in cities and the increasingly serious water pollution. This further exacerbates the shortage of water resources, and seriously affects the sustainable development strategy of our country, threatening the drinking water safety and health of urban residents. At present, my country's urban sewage treatment rate is only 6.7%, and most of them have not been purified and reused. Therefore, urban sewage purification, especially domestic sewage purification and reuse in high-rise buildings, not only has important economic and social benefits for the sustainable development of cities, but also a fundamental measure to effectively solve the contradiction of urban water use.

Make full use of the characteristics of urban high-rise buildings, comprehensively utilize green energy such as wind, light, and water on high-rise buildings, and use them in the treatment and purification of domestic sewage in high-rise buildings to replace the main water sources required to achieve high-rise buildings. The purpose of green purification and reuse of domestic sewage is to achieve the green energy-saving self-circulation supply mode of the main water used by high-rise buildings. Effectively reduce the city's power demand and the power consumption of high-rise buildings, and improve the quality of the urban environment.

After consulting the data, there are existing high-rise building domestic sewage treatment and reuse documents, such as the Chinese patent publication No. CN102373735A, the open system named "a kind of water potential energy recovery and water body reuse integrated system in high-rise buildings", including control unit, The first water storage module and the second water storage module, this patent comprehensively utilizes the potential energy of rainwater and domestic sewage on the roof of high-rise buildings to generate electricity, realizes the recovery of water potential energy in high-rise buildings and generates electricity, and conducts sewage treatment through membrane separation technology The treatment realizes the recycling of water in buildings, which has the effect of energy saving and environmental protection, but this system does not consider the utilization of wind energy and solar energy on the top of high-rise buildings, nor does it consider the problems of pipeline blockage and sewage treatment when sewage power is generated. The system disclosed in the Chinese patent publication number CN104831983A and titled "A New Green Intelligent Building System" includes an intelligent control module, a remote control button, and a green module. This patent realizes the use of wind and solar energy for sewage treatment and reuse. But this system does not make full use of the mechanical energy of the building's own sewage to generate electricity, and the method of increasing the plant layer is not suitable for the exterior walls of high-rise buildings.

Generally speaking, the related technologies currently disclosed have the following problems:

1. Although the purification, treatment and reuse of domestic sewage in high-rise buildings is considered, only part of the green energy in high-rise buildings is used, and all green energy is not fully and comprehensively utilized, and the self-circulation supply mode of purified and reused water cannot be realized.

2. Most of them do not consider the cleaning of sewage discharge pipes. Although some use roof rainwater as a supplementary water source, they do not use relatively clean rainwater as a source of flushing water for sewage pipes. At the same time, few use two-stage sewer power generation. The sewage power generation makes full use of the mechanical energy of high-level sewage, and can improve the unstable problem of power generation in the sewage power generation.

3. Although the domestic sewage of high-rise buildings has been purified and reused, the separated organic fertilizer has not been recycled, and the sewage is directly discharged to the urban drainage network, which has not substantially slowed down the pollution of urban sewage to the environment.

Contents of the invention

In order to overcome the problems existing in the existing high-rise building domestic sewage purification and reuse system, the invention provides a high-rise building domestic sewage green purification and reuse system and a control method thereof. This system can not only make full use of the characteristics of high-rise buildings, comprehensively utilize the mechanical energy of wind energy, solar energy, rainwater and domestic sewage, but also apply these green energies to the domestic sewage purification and reuse system, realizing the purification and recycling of domestic sewage in high-rise buildings. Purify and reuse, recycle and utilize all kinds of energy in high-rise buildings to the maximum extent. The patent of the invention not only has a simple structure, is convenient for the transformation and installation of existing high-rise buildings, but also can effectively improve the urban environment.

In order to achieve the above purpose, the technical solution adopted by the green purification and reuse system of domestic sewage in high-rise buildings in the present invention includes: rainwater-sewage power generation unit, wind-solar complementary power generation unit, battery pack power supply unit, sewage treatment-sewage purification unit , Purified water reuse unit and control unit. Among them, the electric energy output by the rainwater-sewage power generation unit and the wind-solar complementary power generation unit is connected in series with the power supply unit of the battery pack, and the stable electric energy output by the power supply unit of the battery pack is respectively supplied to the sewage pump and air pump of the sewage treatment-sewage purification unit through wires , water pump C, supplying water pump A, water pump B and the load of the purified water reuse unit; the rainwater tank of the rainwater-sewage power generation unit is connected with the clean water storage tank of the purified water reuse unit through a water supply pipe, and through the sewage tank's sewage pipe, The discharge pipe and generator A are respectively connected to the sewage tank of the sewage treatment-sewage purification unit and the primary sedimentation tank; The recycling unit is connected with the sewage-sewage purification unit through the water supply main pipe.

The rainwater-sewage power generation unit is composed of a rainwater tank, a water supply pipe, a total flushing pipe, a sewer flushing pipe, a sewer main pipe, a household sewer pipe, a generator B, an inverter A, a sewage tank, a sewage pipe, and a sewage tank outlet pipe. , Generator A, discharge pipe composition. The rainwater tank has two inlets and one outlet. The top inlet is connected to the water supply pipe. The top side wall inlet with filter A directly receives rainwater from the roof of the high-rise building, and the inner wall of the rainwater tank is installed with a liquid level sensor A. The bottom outlet is passed The electric valve B is connected to the main flushing pipe; the upper end of the main flushing pipe is connected to the sewer flushing pipe through the electric valve A, the sewer flushing pipe is connected to the top of the sewer main pipe, and the lower end of the main flushing pipe is connected to the top of the sewage tank through the electric valve H; The water pipes are respectively connected to the sewer main pipe in turn, and the lower end of the sewer main pipe is connected to the generator B and the top inlet of the sewage tank in turn; a filter screen is installed in the upper part of the sewage tank, a sludge density sensor B is installed in the lower part, and a liquid level sensor C is installed on the inner wall of the middle part. The two inlets on the top are respectively connected to the lower end of the main flushing pipe and the outlet of generator B, the bottom outlet of the filter screen of the sewage tank is connected to the sewage pipe, the upper end of the opposite side wall is connected to the outlet pipe of the sewage tank, and the lower end of the outlet pipe of the sewage tank is connected to the generator A, the outlet at the bottom of the sewage tank is connected to the discharge pipe; the output power of generator A and generator B is connected in series and then output through rectifier A.

The wind-light complementary power generation unit is composed of a wind generator, a rectifier B, a solar panel, and a voltage stabilizer. The output power of the wind generator is changed to DC by the rectifier B, and then connected in series with the output power of the solar panel, and then connected to the voltage stabilizer after being connected in series with the output power of the rectifier A of the rainwater-sewage power generation unit.

The battery pack power supply unit is composed of a battery pack, a voltmeter, an inverter and a load. After the battery pack, voltmeter, and inverter are connected in sequence, the electric energy is supplied to the sewage pump, air pump, and water pump C of the sewage treatment-sewage purification unit through wires, and to the water pump A, water pump B and load of the purified water recycling unit Provide electric energy, at the same time, the grid can supplement electric energy to the system through electric switch B.

The sewage treatment-sewage purification unit is composed of a sewage discharge tank, a sewage pump, a sewage tank, a sewage discharge pipe of a primary sedimentation tank, a primary sedimentation tank, a water inlet pipe of a secondary sedimentation tank, a secondary sedimentation tank, an air pump, a trachea, and a filter screen B , secondary sedimentation tank suction pipe, water pump C, secondary sedimentation tank outlet pipe, membrane bioreaction tank, membrane bioreaction tank outlet pipe, clean water tank, clean water tank sewage pipe, etc. The top of the sewage tank is connected to the sewage discharge pipe and the discharge pipe respectively, one side of the lower end is connected to the sewage discharge tank through the sewage pump, and the other side is connected to the primary sedimentation tank through the sewage discharge pipe of the primary sedimentation tank; the sludge density sensor C is installed at the bottom of the primary sedimentation tank, and the upper part The outlet is connected to the water inlet pipe of the secondary sedimentation tank, and the top inlet is connected to the outlet of the generator A; the sludge density sensor D is installed at the lower part of the secondary sedimentation tank, and the sewage outlet at the bottom is connected to the clean water sewage pipe through the electric valve K, and the secondary sedimentation tank The suction pipe is connected to the water pump C through the filter screen B in the middle, and the outlet of the water pump C is connected to the membrane bioreaction diaphragm installed in the middle of the membrane bioreaction tank through the outlet pipe of the secondary sedimentation tank; the sludge density sensor E is installed in the membrane bioreactor The bottom of the pool, and its bottom sewage outlet is also connected to the clean water sewage pipe through the electric valve M, and the air pump delivers high-pressure gas to the nozzle installed in the air pipe at the bottom of the secondary sedimentation tank and the membrane bioreactor; the outlet pipe of the membrane bioreactor is connected to To the top of the purified water tank, a precision filter screen is installed on the upper part of the purified water tank, and the sludge density sensor A is installed on the precision filter screen and connected to the outlet of the sewage pipe of the clean water tank. There is a liquid level sensor D, and the outlet at the bottom is respectively connected to the green water pipe and the clean water upper water pipe of the water purification reuse unit through a tee.

The purified water reuse unit includes: clean water supply pipes, green water pipes, pumps A, pumps B, clean water storage tanks, clean water supply main pipes, clean water inlet pipes, tap water supply main pipes, and tap water inlet pipes. One side of the upper end of the clean water storage tank is connected to the upper port of the clean water supply pipe, and is connected to the top of the tap water supply main pipe through a tee and an electric valve E. The top of the main pipe is connected, and a liquid level sensor B is installed in it; the side wall of the clean water supply main pipe is respectively connected with the clean water inlet pipe, and the pump A and pump B are arranged on the clean water upper pipe according to the height of the high-rise building; the lower end of the tap water main pipe Connect with main water supply valve of tap water.

The control unit includes: an electric valve A installed at the entrance of the sewer flushing pipe, an electric valve B installed at the outlet of the rainwater tank, an electric valve C installed at the outlet of the replenishment pipe of the rainwater tank, and an electric valve C installed at the entrance of the clean water tank. Electric valve D, electric valve E installed at the end of the main water supply pipe, electric valve F installed at the outlet of the main water supply valve, electric valve G installed at the outlet of the sewage pipe of the clean water tank, and installed at the outlet of the main flushing pipe Electric valve H, electric valve I installed at the outlet of the sewage pipe, electric valve J installed at the outlet of the sewage pipe of the primary sedimentation tank, electric valve K installed at the bottom outlet of the secondary sedimentation tank, and installed at the bottom of the membrane bioreactor tank The electric valve M at the outlet is installed in the rainwater tank, the clean water tank, the sewage tank, and the liquid level sensor A, liquid level sensor B, liquid level sensor C, and liquid level sensor D in the clean water tank are respectively installed in the sewage tank , sludge density sensor B, sludge density sensor C, sludge density sensor D, sludge density sensor E, sludge density sensor A in the primary sedimentation tank, secondary sedimentation tank, membrane bioreactor tank and water purification tank, The electric switch A connected to the outlet of the inverter, the electric switch B connected to the grid, the electric switch C connected to the load, the electric switch D supplying power to the system and the electric switch E controlling the shutdown of the sewage pump, as well as the data line and control device. The controller controls the opening and closing of each controllable valve and controllable switch of the system according to the signals sent by all kinds of sensors involved in the present invention.

The technical scheme adopted by the control method of the green purification and reuse system of domestic sewage in high-rise buildings in the present invention has the following steps: according to the water level position of the rainwater tank displayed by the liquid level sensor A, determine the electric valve A, the electric valve B, and the electric valve C , the opening and closing of the electric valve D, the electric valve E, and the electric valve H; according to the water level of the sewage tank displayed by the liquid level sensor C, control the opening and closing of the electric valve B and the electric valve H; according to the sludge density displayed by the sludge density sensor B, Control the opening and closing of electric valve I, electric valve B, and electric valve H; control the opening and closing of electric valve J according to the sludge density at the bottom of the primary sedimentation tank displayed by sludge density sensor C, and control the opening and closing of electric valve J according to the sludge density sensor D and sludge density sensor E shows the sludge density at the bottom of the secondary sedimentation tank and the bottom of the membrane bioreactor tank, and controls the opening and closing of the electric valve K and electric valve M; according to the display of the sludge density sensor A, controls the opening and closing of the electric valve G; according to the display of the liquid level sensor D Control the opening and closing of the electric valve F for the water level of the clean water pool; control the electric switch A, electric switch B, electric switch C, electric switch D, and electric switch E according to the display of the voltmeter at the outlet of the battery pack.

When the liquid level sensor A shows that the water level of the rainwater tank is below 30%, the controller controls the electric valve B to close, and determines the electric valve C, electric valve D and electric valve E according to the water level of the clean water storage tank displayed by the liquid level sensor B. Open and close, if the water level of the clean water storage tank is above 80%, the controller controls the electric valve C and electric valve D to open, controls the electric valve E to close, when the liquid level sensor B shows that the water level of the clean water storage tank is lower than 50%, the electric Valve C is closed, electric valve D and electric valve E are opened, until the water level of the clean water storage tank returns to 80%, electric valve E is closed.

When the liquid level sensor A shows that the water level of the rainwater tank is between 30% and 80%, the controller controls the electric valve B and the electric valve C to close, and opens and closes the electric valve B, the electric valve A, and the electric valve H in a timely manner as required . When the liquid level sensor A shows that the water level of the rainwater tank is above 80%, the controller controls the electric valve B, the electric valve A, and the electric valve H to open until the water level recovers to 80% and closes.

When the liquid level sensor C shows that the water level of the sewage tank is below 30%, the controller controls the electric valve B and the electric valve H to open to ensure that the water level of the sewage tank returns to the water level of 30%. When the sludge density sensor B shows that the sludge density reaches 2000kg/ ^m3 , the controller controls the electric valve I to open, otherwise it closes; if the liquid level sensor B shows that the water level of the sewage tank remains unchanged for 1 hour, the controller directly controls the electric valve B. Open the electric valve H and keep it for 2 minutes, then close the electric valve B and electric valve H.

When the sludge density sensor C shows that the sludge density at the bottom of the primary sedimentation tank reaches 1500kg/m ³ , the controller controls the electric valve J to open; when the sludge density sensor D and sludge density sensor E show that the bottom of the secondary sedimentation tank and the membrane bioreaction When the sludge density at the bottom of the pool reaches 1200kg/m ³ , the controller controls electric valve K and electric valve M to open; when the sludge density sensor A shows 1100kg/m ³ , the controller controls electric valve G to open.

When the liquid level sensor D shows that the water level of the clean water pool is lower than 50%, the controller controls the electric valve F to close, otherwise, the electric valve F opens and closes as required.

When the voltmeter at the outlet of the battery pack shows that the power of the battery pack is higher than 40%, the controller controls the electric switch D to be turned on, and controls the electric switch C and the electric switch E to be turned on or off as required; when the voltmeter at the outlet of the battery pack shows that the battery When the power of the battery pack is lower than 25% of its rated power, the controller controls the electric switch A to be turned off, controls the electric switch B and the electric switch D to be turned on, and turns off the electric switch B until the power of the battery pack is higher than 80%.

After the present invention adopts above-mentioned technical scheme, the beneficial effect that has is:

1) The two-stage power generation method of domestic sewage in high-rise buildings can reuse the mechanical energy of domestic sewage for many times. The sewage tank power generation method can not only solve the stability problem of the sewage power generation department of high-rise buildings, but also has the advantages in the purification and reuse system of domestic sewage. The role of primary filtration effectively collects and utilizes energy and reasonably processes organic fertilizers, which greatly reduces the workload of subsequent sewage purification treatment.

2) Utilize the rainwater resources on the roof of high-rise buildings to realize the joint power generation of domestic sewage and rainwater in high-rise buildings and the cleaning of water pipes, which not only expands the water source of high-rise buildings, but also makes full use of urban fresh water resources. Greatly improved the living environment.

3) Making full use of wind energy and solar green energy in high-rise buildings can effectively solve the randomness, discontinuity and uncertainty of various energy sources, and transform various "inferior" energy into stable "high-quality" energy, basically It can realize the self-supply of system energy, thereby effectively reducing the operating energy consumption of high-rise buildings.

4) The system is controlled by simple electric valves and electric switches, with simple structure, low cost and reliable operation. The use of primary and secondary sedimentation tanks effectively prolongs the service life of membrane bioreaction membranes and reduces operating costs.

Description of drawings

Fig. 1 is a green purification and reuse system of high-rise building domestic sewage and its control method connection schematic diagram according to the present invention.

In the figure: 1. Electric valve A; 2. Electric valve B; 3. Liquid level sensor A; 4. Rainwater tank; 5. Rectifier A; 6. Filter A; 7. Water supply pipe; 8. Electric valve C; 9 .Liquid level sensor B; 10. Clean water storage tank; 11. Wind generator; 12. Electric valve D; 13. Rectifier B; 14. Electric valve E, 15. Clean water supply main pipe; 16. Tap water inlet pipe; 17. Clean water supply pipe; 18. Solar panel; 19. Voltage stabilizer; 20. Battery pack; 21. Clean water inlet pipe; 22. Water supply main pipe; 23. Water pump A; 24. Voltmeter; 25. Inverter; 26. Electric switch A; 27. Electric switch B; 28. Electric switch C; 29. Electric switch D; 30. Water pump B; 31. Load; 32. Main water supply valve; 33. Controller; 34 .Electric valve F; 35. Green water pipes; 36. Water purification pool; 37. Electric valve G; 38. Sludge density sensor A; 39. Precision filter screen; 40. Membrane bioreactor diaphragm; Pool outlet pipe; 42. Water pump C; 43. Secondary sedimentation tank suction pipe; 44. Secondary sedimentation tank; 45. Air pipe; 46. Air pump; 47. Generator A; 48. Liquid level sensor C; 49. Sewage tank Outlet pipe; 50. Filter screen; 51. Generator B; 52. High-rise building; 53. Sewer main pipe; 54. Household sewer pipe; 55. Sewer flushing pipe; 56. Total flushing pipe; 57. Electric valve H; 58. Sewage tank; 59. Sewage pipe; 60. Electric switch E, 61. Sludge density sensor B; 62. Sewage tank; 63. Sewage tank; 64. Sewage pump; 65. Electric valve I; 66. Discharge pipe; 67 .Primary sedimentation tank sewage pipe; 68. Electric valve J; 69. Primary sedimentation tank; 70. Sludge density sensor C; 71. Sludge density sensor D; 72. Secondary sedimentation tank inlet pipe; 73. Electric valve K; 74. Nozzle; 75. Filter B; 76. Electric valve M; 77. Sludge density sensor E; 78. Membrane bioreaction tank; 79. Data line; 80. Liquid level sensor D; 81. Clean water tank sewage pipe ; 82. Membrane bioreactor tank outlet pipe.

detailed description

Below in conjunction with accompanying drawing and specific embodiment the present invention is described in further detail:

As shown in Figure 1, the technical solution adopted by the present invention includes: rainwater-sewage power generation unit, wind-solar complementary power generation unit, battery pack power supply unit, sewage treatment-sewage purification unit, purified water reuse unit and control unit. Among them, the electric energy output by the rainwater-sewage power generation unit and the wind-solar complementary power generation unit are connected in series to the voltage stabilizer 19 of the battery pack power supply unit, and the stable electric energy output by the battery power supply unit is respectively supplied to the sewage treatment-sewage purification unit through wires. Sewage pump 64, air pump 46, water pump C41, water pump A23, water pump B30 and load 31 for supplying and purifying water reuse unit; rainwater tank 4 of rainwater-sewage power generation unit connects with purified water storage tank of purified water reuse unit through replenishment pipe 7 10 connection, through the sewage tank 58 sewage discharge pipe 59, discharge pipe 66, generator A47 are respectively connected with the sewage pool 63 and the primary sedimentation tank 69 of the sewage treatment-sewage purification unit; the water purification of the sewage treatment-sewage purification unit The outlet of the pool 36 is connected with the clean water upper pipe 17 of the purification reuse unit, and the end of the tap water supply main pipe 22 of the clean water reuse unit is connected with the clean water storage tank 10 of the dirt-sewage purification unit.

The rainwater tank 4 of the rainwater-sewage power generation unit is fixedly installed on the side of the roof of the high-rise building 52, and the inner wall of the rainwater tank 4 is equipped with a liquid level sensor A3, and the inlet for collecting rainwater is 200mm higher than the roof, and is provided with a filter A6 , the water inlet at the top is connected with the water supply pipe 7, the water outlet at the bottom is connected with the main flushing pipe 56 through the electric valve B2; H57 is connected to the top of the sewage tank 58; the end of the sewer flushing pipe 55 is connected to the upper side wall of the sewer main pipe 53, and the sewer pipes 54 of each layer of households are respectively connected to the side walls of the sewer main pipe 53 in turn, and the lower end of the sewer main pipe 53 is connected to the power generator. Machine B51 and generator B51 outlet are connected to the top of sewage tank 58 through pipelines; filter screen 50 is installed in the upper part of sewage tank 58, sludge density sensor B61 is installed in the lower end, liquid level sensor C48 is installed in the middle part, and the outlet at the lower end of filter screen 50 is connected with sewage discharge The pipe 59 is connected, the end of the sewage pipe 59 is connected to the entrance on the left side of the top of the sewage tank 62, the outlet of the bottom end of the sewage tank 58 is connected to the discharge pipe 66, and the end of the discharge pipe 66 is connected to the entrance on the right side of the top of the sewage tank 62, The outlet on the top of the liquid level sensor C48 is connected to the upper end of the sewage tank outlet pipe 49, the end of the sewage tank outlet pipe 49 is connected to the generator A47, and the outlet of the generator A47 is connected to the top inlet of the primary sedimentation tank 69 through a pipeline; the generator A47, generator The electric energy output by B51 is connected in series and then output through rectifier A5.

The wind-driven generator 11 and the solar panel 18 of the wind-light complementary power generation unit are fixedly installed on the roof of a high-rise building 52, wherein the wind generator 11 should be close to the edge of the roof, and the solar panel 18 is installed in the middle and can follow The sun’s rays move; the output electric energy of the wind generator 11 is converted into direct current by the rectifier B13 and then output in series with the output electric energy of the solar panel 18, and then combined in series with the electric energy output by the rainwater-sewage power generation unit, and then connected to the voltage stabilizer 19 superior.

The battery pack 20 of the battery pack power supply unit receives the stable electric energy output by the voltage stabilizer 19, and changes the direct current into alternating current through the voltmeter 24 and the inverter 25, and then supplies the waste water pump 64 and the air pump of the sewage treatment-sewage purification unit through wires. 46. The water pump C42 provides electric energy to the water pump A23, water pump B30 and load 31 of the purified water reuse unit. At the same time, considering extreme weather and human factors, when the power is insufficient, the power grid can supplement the system through the electric switch B27 power to ensure the normal operation of the system.

Sewage treatment - sewage tank 63, sewage tank 62, primary sedimentation tank 69, secondary sedimentation tank 44, membrane bioreaction tank 78 and water purification tank 36 of the sewage purification unit are connected in sequence through pipelines; the bottom outlet on the left side of sewage tank 63 It is directly used to recycle organic fertilizers. The upper inlet on the right side is connected to the bottom outlet of the sewage pool 62 through the sewage pump 64, and the bottom inlet on the left side is connected to the left end of the sewage pipe 81 of the clean water pool. There are two entrances on the top of the sewage pool 62. , are respectively connected to the sewage discharge pipe 59 and the end of the discharge pipe 66 of the sewage tank 58 of the rainwater-sewage power generation unit, and the lower inlet is connected to the left end of the sewage discharge pipe 67 of the primary sedimentation tank; the lower outlet of the primary sedimentation tank 69 is connected to the primary sedimentation tank through the electric valve J68 The right end of the sewage pipe 67 is connected, the top is connected with the outlet of the generator A47, the upper outlet of the side is connected with the left end of the inlet pipe 72 of the secondary sedimentation tank, and a sludge density sensor C70 is installed at the bottom; the upper inlet of the left side of the secondary sedimentation tank 44 Connect with the right end of the inlet pipe 72 of the secondary sedimentation tank, and pass through the filter B75 suspended in the middle of the secondary sedimentation tank 44, the suction pipe 43 of the secondary sedimentation tank, the water pump C42, the outlet pipe 41 of the secondary sedimentation tank, and the membrane bioreaction tank 78 The diaphragm 40 of the membrane bioreaction tank in the middle and middle part is connected sequentially, the bottom of the left side of the secondary sedimentation tank 43 is equipped with a sludge density sensor D71, and the right side of the bottom of the membrane bioreaction tank 78 is equipped with a sludge density sensor E77, which is located in the secondary sedimentation tank The air pump 46 above 44 provides pressurized gas to the nozzle 74 laid on the bottom of the secondary sedimentation tank 44 and the membrane bioreactor 78 through the air pipe 45, and the outlets at the bottom of the secondary sedimentation tank 44 and the membrane bioreactor 78 pass through the electric valve K73, respectively. The electric valve M76 is connected to the clean water sewage pipe 81, the left bottom outlet of the membrane bioreactor 78 is connected to the left end of the outlet pipe 82 of the membrane bioreactor; the right outlet of the membrane bioreactor outlet pipe 82 is connected to the left top of the water purification tank 36 , the liquid level sensor D80 is installed at the bottom of the left side of the water purification pool 36, and a precision filter screen 39 is installed at the top, and a sludge density sensor A38 is arranged on the precision filter screen 39, and the outlet at the bottom is connected with the clean water sewage pipe 81 through the electric valve G37, and the right The side bottom outlet is connected with the left end of the clean water upper water pipe.

The lower end of the clean water supply pipe 17 of the clean water reuse unit is connected to two pipelines through a tee, one is connected to the green water pipe 35 through the electric valve F34, and the other is connected to the water pump B30 and the water pump A23 installed on the clean water supply pipe 17. , its upper end is connected with the clean water storage tank 10, and is connected with the tap water supply main pipe 22 through a tee, and the tap water inlet pipe 16 is installed on the corresponding side wall of the tap water supply main pipe 22, and tap water supply is installed at the entrance of the tap water supply main pipe 22. The main valve 32; the upper right side of the clean water storage tank 10 is connected to the end of the clean water supply pipe 17, the outlet on the right lower part is connected to the clean water supply main pipe 15, and the left outlet is connected to the right end of the water supply pipe 7 through the electric valve C8; the clean water supply Corresponding clean water inlet pipes 21 are respectively installed on the corresponding side walls of the main pipe 15 .

As shown in FIG. 1 , when the green purification and reuse system of high-rise building domestic sewage of the present invention is working, the following control method is adopted to realize the green purification and reuse of domestic sewage.

When the liquid level sensor A3 shows that the water level of the rainwater tank 4 is below 30%, the controller 33 controls the electric valve B2 to close, and determines the electric valve C8, electric valve D12 and The opening and closing of the electric valve E14; if the liquid level sensor B9 of the clean water storage tank 10 shows that the water level is above 80%, the controller 33 controls the opening of the electric valve C8 and the electric valve D12, and controls the closing of the electric valve E14 until the water level of the rainwater tank 4 recovers to 30%. When the liquid level sensor B9 shows that the water level of the clean water storage tank 10 is lower than 50%, the electric valve C8 is closed, and the electric valve D12 and the electric valve E14 are opened. When the water level of the clean water storage tank 10 returns to 80%, the electric valve E14 is closed.

When the liquid level sensor A3 shows that the water level of the rainwater tank 4 is between 30%-80%, the controller 33 controls the electric valve B2 and the electric valve C8 to close. At this time, the controller 33 controls the electric valve A1 and the electric valve every five days B2 is turned on and kept for three minutes, and the controller 33 controls the electric valve A1 and the electric valve H57 to be opened every three days and kept for five minutes. And no matter when and what the situation is, when the liquid level sensor A3 shows that the water level of the rainwater tank 4 is above 80%, the controller 33 controls the electric valve A1, the electric valve B2, and the electric valve H57 to open until the water level recovers to 80%.

When the liquid level sensor C48 shows that the water level of the sewage tank 58 is below 30%, the controller 33 controls the electric valve B2 and the electric valve H57 to open, so that the water level of the sewage tank 58 returns to the water level of 30%. When the sludge density sensor B61 shows that the sludge density reaches 2000kg/ ^m3 , the controller 22 controls the electric valve I65 to open until the sludge density sensor B61 shows 1000kg/ ^m3 , the controller 33 controls the electric valve I65 to close; When the level sensor C48 shows that the water level of the sewage tank 58 remains unchanged for 1 hour, the controller 33 directly controls the electric valve B2 and the electric valve H57 to open, and after keeping for two minutes, closes the electric valve B2 and the electric valve H57.

When the sludge density sensor C70 shows that the sludge density at the bottom of the sedimentation tank 69 reaches 1500kg/ ^m3 , the controller 33 controls the electric valve J68 to open until the sludge density sensor C70 shows 1000kg/ ^m3 ; when the sludge density sensor D71 , The sludge density sensor E77 shows that the sludge density at the bottom of the secondary sedimentation tank 44 and the bottom of the membrane bioreactor 78 reaches 1200kg/m ³ , the controller 33 respectively controls the opening of the electric valve K73 and the electric valve M76 until the sludge density sensor D71 and Close when the sludge density sensor E77 shows 1000kg/ ^m3 ; when the sludge density sensor A38 shows 1100kg/ ^m3 , the controller 33 controls the electric valve G37 to open until the sludge density sensor A38 shows 1000kg/ ^m3 and closes.

When the liquid level sensor D80 shows that the water level of the clean water pool 36 is lower than 50%, the controller 33 controls the electric valve F34 to close, otherwise, the controller 33 controls the opening and closing of the electric valve F34 according to the needs of greening.

When the battery pack 20 outlet voltmeter 24 shows that the battery pack 20 is higher than 40%, the controller 33 controls the electric switch A26 and the electric switch D29 to be connected, and controls the opening and closing of the electric switch C28 according to the load requirements. At the same time, the controller 33 controls the electric switch E60 to turn on once a day at zero o'clock and keeps it for 1 hour; when the voltmeter 24 at the outlet of the battery pack 20 shows that the power of the battery pack 20 is lower than 25% of its power, the controller 33 controls the electric switch A26 to turn off and controls the electric switch B27 is connected, and when battery pack 20 electric quantity is higher than 80%, electric switch B27 is disconnected, and electric switch D29 is connected.

Finally, it is noted that the above examples are only used to illustrate the technical implementation of this patent rather than limitation. Any modification or equivalent replacement of the technical solution of this patent without departing from the purpose and scope of the technical solution of this patent shall be covered by the claims of this patent.

Claims (14)

1. A green purification and reuse system for domestic sewage in high-rise buildings, including: rainwater-sewage power generation unit, wind-solar complementary power generation unit, battery pack power supply unit, sewage treatment-sewage purification unit, purified water reuse unit and control unit ; Among them, the electric energy output by the rainwater-sewage power generation unit and the wind-solar complementary power generation unit are connected in series to the power supply unit of the battery pack, and the stable electric energy output by the power supply unit of the battery pack is respectively supplied to the sewage pump of the sewage treatment-sewage purification unit through wires. Air pump, water pump C, water pump A, water pump B and the load supplied to the purified water reuse unit; the rainwater tank of the rainwater-sewage power generation unit is connected to the clean water storage tank of the purified water reuse unit through the replenishment pipe, and through the sewage tank's sewage pipe , discharge pipe, and generator A are respectively connected to the sewage tank of the sewage treatment-sewage purification unit and the primary sedimentation tank; The water reuse unit is connected with the sewage-sewage purification unit through the tap water supply main pipe. 2. The green purification and reuse system of a kind of high-rise building domestic sewage according to claim 1, the described rainwater-sewage power generation unit is composed of a rainwater tank, a water supply pipe, a total flushing pipe, a sewer flushing pipe, a sewer main pipe, and a household It consists of sewer pipe, generator B, inverter A, sewage tank, sewage pipe, sewage tank outlet pipe, generator A, and discharge pipe; the rainwater tank has two inlets and one outlet, and the top inlet is connected to the water supply pipe. The top side wall inlet of the filter screen A directly receives rainwater from the roof of the high-rise building, and the liquid level sensor A is installed on the inner wall of the rainwater tank, and the bottom outlet is connected to the main flushing pipe through the electric valve B; The flushing pipe is connected, the sewer flushing pipe is connected to the top of the sewer main pipe, and the lower end of the main flushing pipe is connected to the top of the sewage tank through the electric valve H; the sewer pipes of each floor of the household are respectively connected to the sewer main pipe in turn, and the lower end of the sewer main pipe is connected to the generator B, sewage The top inlet of the water tank is connected; a filter screen is installed in the upper part of the sewage tank, a sludge density sensor B is installed in the lower part, and a liquid level sensor C is installed in the inner wall of the middle part. The outlet at the bottom of the filter screen is connected to the sewage pipe, the outlet at the upper end of the opposite side wall is connected to the outlet pipe of the sewage tank, the lower end of the outlet pipe of the sewage tank is connected to the generator A, and the outlet at the bottom of the sewage tank is connected to the discharge pipe; output of generator A and generator B The electric energy is output through the rectifier A after being connected in series. 3. The green purification and reuse system of a kind of high-rise building domestic sewage according to claim 1, the described wind-light complementary power generation unit comprises a wind-driven generator, a rectifier B, a solar panel, a voltage stabilizer; a wind-driven generator The output power is converted into DC by rectifier B and then connected in series with the output power of the solar panel, and then connected in series with the output power of rectifier A of the rainwater-sewage power generation unit, and then connected to the voltage stabilizer. 4. The green purification and recycling system of a kind of high-rise building domestic sewage according to claim 1, said storage battery pack power supply unit comprises a storage battery pack, a voltmeter, an inverter, a load; a storage battery pack, a voltmeter, an inverter After the devices are connected in sequence, the electric energy is provided to the sewage pump, air pump, and water pump C of the sewage treatment-sewage purification unit through wires, and to provide electric energy to the water pump A, water pump B and loads of the purified water reuse unit. At the same time, the power grid can pass through Electric switch B supplements electric energy to the system. 5. The green purification and recycling system of a kind of high-rise building domestic sewage according to claim 1, said sewage treatment-sewage purification unit comprises a sewage tank, a sewage pump, a sewage pool, a primary sedimentation tank sewage pipe, a primary Sedimentation tank, secondary sedimentation tank inlet pipe, secondary sedimentation tank, air pump, air pipe, filter B, secondary sedimentation tank suction pipe, water pump C, secondary sedimentation tank outlet pipe, membrane bioreaction tank, membrane bioreaction tank outlet Water pipes, clean water tanks, sewage discharge pipes of clean water tanks; the top of the sewage tank is connected to the sewage discharge pipe and the discharge pipe respectively, one side of the lower end is connected to the sewage discharge tank through the sewage pump, and the other side is connected to the primary sedimentation tank through the sewage discharge pipe of the primary sedimentation tank; A sludge density sensor C is installed at the bottom of the primary sedimentation tank, the upper outlet is connected to the water inlet pipe of the secondary sedimentation tank, and the top inlet is connected to the outlet of the generator A; the sludge density sensor D is installed at the lower part of the secondary sedimentation tank, and the bottom sewage outlet passes through the electric valve K is connected to the clean water sewage pipe, the suction pipe of the secondary sedimentation tank is connected to the water pump C through the filter screen B in the middle, and the outlet of the water pump C passes through the outlet pipe of the secondary sedimentation tank and the membrane bioreaction diaphragm installed in the middle of the membrane bioreaction tank connection; the sludge density sensor E is installed at the bottom of the membrane bioreactor tank, and its bottom sewage outlet is also connected to the clean water sewage pipe through the electric valve M, and the air pump is installed at the bottom of the secondary sedimentation tank and the membrane bioreactor tank. The nozzle conveys high-pressure gas; the outlet pipe of the membrane bioreactor tank is connected to the top of the purified water tank, and a precision filter screen is installed on the upper part of the purified water tank. The end is connected to the lower part of the sewage tank, and the liquid level sensor D is installed at the lower part of the still water tank, and the outlet at the bottom is respectively connected to the green water pipe and the clean water upper water pipe of the water purification reuse unit through a tee. 6. The green purification and reuse system of a kind of high-rise building domestic sewage according to claim 1, wherein the purified water reuse unit comprises clean water upper water pipes, green water pipes, pump A, pump B, clean water storage tank, Clean water supply main pipe, clean water inlet pipe, tap water supply main pipe, tap water inlet pipe; one side interface on the upper end of the clean water storage tank is connected to the upper port of the clean water upper pipe, and is connected to the top of the tap water supply main pipe through a tee, electric valve E Connection, one side of the interface is connected to the water supply pipe, the outlet at the lower end of the clean water storage tank is connected to the top of the clean water supply main pipe, and a liquid level sensor B is installed in it; the side walls of the clean water supply main pipe are respectively connected to the clean water inlet pipes, Pump A and pump B are arranged on the clean water upper pipe according to the height of the high-rise building; the lower end of the tap water main pipe is connected with the tap water supply main valve. 7. A green purification and recycling system for domestic sewage in high-rise buildings according to claim 1, said control unit comprising an electric valve A installed at the entrance of the sewer flushing pipe, an electric valve B installed at the outlet of the rainwater tank , The electric valve C installed at the outlet of the rainwater tank replenishment pipe, the electric valve D installed at the entrance of the clean water tank, the electric valve E installed at the end of the tap water supply main pipe, the electric valve F installed at the outlet of the tap water supply main valve, Electric valve G installed at the outlet of the sewage pipe of the clean water tank, electric valve H installed at the outlet of the main flushing pipe, electric valve I installed at the outlet of the sewage pipe, and electric valve J installed at the outlet of the sewage pipe of the primary sedimentation tank , the electric valve K installed at the bottom outlet of the secondary sedimentation tank and the electric valve M installed at the bottom outlet of the membrane bioreactor tank, and the liquid level sensors installed in the rainwater tank, clean water tank, sewage tank and clean water tank respectively A. Liquid level sensor B, liquid level sensor C, liquid level sensor D, sludge density sensor B, sludge installed in sewage tank, primary sedimentation tank, secondary sedimentation tank, membrane bioreaction tank and water purification tank respectively Density sensor C, sludge density sensor D, sludge density sensor E, sludge density sensor A, electric switch A connected to the inverter outlet, electric switch B connected to the grid, electric switch C connected to the load, The electric switch D for power supply of the system and the electric switch E for controlling the shutdown of the sewage pump, as well as the data line and the controller. 8. A control method for a green purification and reuse system of domestic sewage in high-rise buildings comprises the following steps: according to the water level position of the rainwater tank displayed by the liquid level sensor A, determine the electric valve A, the electric valve B, the electric valve C, the electric valve D, The opening and closing of electric valve E and electric valve H; control the opening and closing of electric valve B and electric valve H according to the water level of the sewage tank displayed by liquid level sensor C; control the opening and closing of electric valve B and electric valve H according to the sludge density displayed by sludge density sensor B The electric valve B and electric valve H are opened and closed; according to the sludge density at the bottom of the primary sedimentation tank displayed by the sludge density sensor C, the opening and closing of the electric valve J is controlled, and the secondary sedimentation is displayed according to the sludge density sensor D and the sludge density sensor E Control the opening and closing of the electric valve K and electric valve M according to the sludge density at the bottom of the tank and the bottom of the membrane bioreactor; control the opening and closing of the electric valve G according to the display of the sludge density sensor A; according to the water level of the clean water tank displayed by the liquid level sensor D, Control the opening and closing of the electric valve F; control the electric switch A, electric switch B, electric switch C, electric switch D, and electric switch E according to the display of the battery pack outlet voltmeter. 9. The control method of the green purification and reuse system of a kind of high-rise building domestic sewage according to claim 8, when the liquid level sensor A shows that the water level of the rainwater tank is below 30%, the controller controls the electric valve B to close, and Determine the opening and closing of the electric valve C, electric valve D and electric valve E according to the water level of the clean water storage tank displayed by the liquid level sensor B. If the water level of the clean water storage tank is above 80%, the controller controls the electric valve C and electric valve D When the liquid level sensor B shows that the water level of the clean water storage tank is lower than 50%, the electric valve C is closed, and the electric valve D and electric valve E are opened until the water level of the clean water storage tank returns to 80%. , the electric valve E is closed; when the liquid level sensor A shows that the water level of the rainwater tank is between 30% and 80%, the controller controls the electric valve B and the electric valve C to close, and opens the electric valve B, electric valve A, The opening and closing of the electric valve H; when the liquid level sensor A shows that the water level of the rainwater tank is above 80%, the controller controls the electric valve B, electric valve A, and electric valve H to open until the water level recovers to 80%. 10. The control method of a green purification and reuse system of high-rise building domestic sewage according to claim 8, said liquid level sensor C shows that the water level of the sewage tank is below 30%, and the controller controls the electric valve B and the electric valve H Open to ensure that the water level in the waste water tank returns to 30% of the water level. 11. The control method of the green purification and reuse system of a kind of high-rise building domestic sewage according to claim 8, when the sludge density sensor B shows that the sludge density reaches 2000kg/ ^m , the controller controls the electric valve 1 to open , otherwise close; if the liquid level sensor B shows that the water level of the sewage tank remains unchanged for 1 hour, the controller directly controls the electric valve B and electric valve H to open, and after 2 minutes, close the electric valve B and electric valve H. 12. The control method of a green purification and reuse system for domestic sewage in high-rise buildings according to claim 8, wherein the sludge density sensor C shows that the sludge density at the bottom of the primary sedimentation tank reaches 1500kg/m ³ , and the controller controls the electric Valve J is opened; when the sludge density sensor D and sludge density sensor E show that the sludge density at the bottom of the secondary sedimentation tank and the bottom of the membrane bioreactor tank reaches 1200kg/m ³ , the controller controls the electric valve K and electric valve M to open; when When the sludge density sensor A shows 1100kg/ ^m3 , the controller controls the electric valve G to open. 13. The control method of a green purification and recycling system of domestic sewage in a high-rise building according to claim 8, when the liquid level sensor D shows that the water level of the clean water pool is lower than 50%, the controller controls the electric valve F to close, Otherwise, the electric valve F opens and closes as required. 14. The control method of a green purification and reuse system for domestic sewage in high-rise buildings according to claim 8, when the outlet voltmeter of the battery pack shows that the power of the battery pack is higher than 40%, the controller controls the electric switch D to be turned on , and control the electric switch C and electric switch E to turn on or off according to the needs; when the outlet voltmeter of the battery pack shows that the power of the battery pack is lower than 25% of its rated power, the controller controls the electric switch A to turn off, and controls the electric switch B 1. Turn on the electric switch D, and turn off the electric switch B until the power of the battery pack is higher than 80%.