Household water-saving system for recycling, purifying and reusing grey water

Abstract

The invention relates to the technical field of grey water treatment, in particular to a household grey water recycling, purifying and reusing water-saving system. The water saving system comprises a grey water collecting system, a grey water centralized conveying system, a grey water storing and purifying system and a reclaimed water recycling system. The outlet end of the grey water collecting system is connected with the inlet end of the grey water centralized conveying system, the outlet end of the grey water centralized conveying system is connected with the inlet end of the grey water storage and purification system, and the outlet end of the grey water storage and purification system is connected with the inlet end of the reclaimed water recycling system. The device is simple in structure, convenient to install and easy and convenient to operate, the grey water purifying agent filling device is additionally arranged during autonomous operation, and the grey water recycling range is further expanded. The purified reclaimed water can reach the reclaimed water standard, and the recycling range is wide. The system has an obvious water-saving effect, can reach 40-70% of the water consumption of community residents, can directly reduce the tap water consumption of the community residents by about 25%, and can comprehensively reduce the tap water consumption of the community residents by about 48%.

Description

Technical Field

[0001] The present invention relates to the technical field of grey water treatment, and more particularly to a household grey water recycling, purification, treatment and reuse water-saving system. Background Art

[0002] Currently, household water-saving technologies primarily rely on manual labor, such as using temporary water storage containers to collect domestic wastewater (such as vegetable washing water and laundry water) for manual use in applications like flushing toilets and mopping. This method is not only labor-intensive but also limited in scope, resulting in minimal water-saving effects and limited scale-up. Furthermore, existing household wastewater recycling devices, including those described in existing patents for automatic household wastewater recycling and reuse, while partially automated, still suffer from significant drawbacks. First, their structural design is overly simplistic, allowing wastewater to enter the storage system without effective filtration, leading to impurity accumulation, clogging pipes, and difficulty in cleaning and maintenance. Second, they lack professional wastewater purification capabilities, resulting in poor quality recycled water that fails to meet national standards for recycled water reuse and can only be used in limited scenarios (such as flushing), limiting their application. These issues hinder the widespread adoption of existing water-saving technologies, resulting in low user acceptance and overall poor water-saving results. Therefore, there is an urgent need for an intelligent, efficient, and purified household wastewater recycling system to address the shortcomings of existing technologies, improve water-saving efficiency, expand the scope of recycled water reuse, and promote the widespread adoption and application of household water-saving technologies. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one aspect of the present invention is to provide a household grey water recovery, purification, treatment and reuse water-saving system, the water-saving system comprising a grey water collection system, a grey water centralized transportation system, a grey water storage and purification system and a grey water reuse system; the grey water collection system outlet is connected to the grey water centralized transportation system inlet, the grey water centralized transportation system outlet is connected to the grey water storage and purification system inlet, and the grey water storage and purification system outlet is connected to the grey water reuse system inlet.

[0004] Preferably, the grey water collection system includes a facial wash basin, a vegetable wash basin, a washing machine, a sewage-ash water diverter valve and a grey water recovery pipe; the facial wash basin, the vegetable wash basin and the washing machine drain pipes are respectively provided with a sewage-ash water diverter valve, the sewage-ash water diverter valve is connected to the inlet end of the grey water recovery pipe, and the grey water recovery pipe is connected to the grey water centralized transportation system.

[0005] Preferably, the gray water collection system further includes a sewage discharge pipe and a sewage downpipe, the sewage-ash water diversion valve is connected to the inlet end of the sewage discharge pipe, and the outlet end of the sewage discharge pipe is connected to the sewage downpipe.

[0006] Preferably, the centralized gray water transportation system includes a gray water collecting tank, a gray water fine filter, a lower sensor of the collecting tank and an upper sensor of the collecting tank; the inlet end of the gray water collecting tank is connected to the gray water recovery pipe, and a gray water fine filter is obliquely arranged at the upper end of the gray water collecting tank, an upper sensor of the collecting tank is arranged below the position of the gray water fine filter on the gray water collecting tank, and a lower sensor of the collecting tank is arranged at the lower position of the gray water collecting tank.

[0007] Preferably, the centralized grey water transportation system further comprises a grey water pump, a grey water pump outlet pipe and a synchronous quantitative grey water purifier filler; the inlet end of the grey water pump is connected to the outlet end of the grey water collecting tank, and the grey water pump outlet pipe and the synchronous quantitative grey water purifier filler are arranged in parallel on the grey water pump outlet.

[0008] Preferably, the grey water storage and purification system includes a coaxial integrated grey water storage and purification water tank, a grey water silo, a grey water purification silo, a grey water silo, an upper sensor on the water storage tank and a lower sensor on the water storage tank; the inlet end of the coaxial integrated grey water storage and purification water tank is connected to the grey water pump outlet pipe, and the coaxial integrated grey water storage and purification water tank is provided with a grey water silo, a grey water purification silo and a grey water silo; the grey water silo is located at the upper part of the coaxial integrated grey water storage and purification water tank, the grey water purification silo is located below the grey water silo, the grey water silo is located inside the coaxial integrated grey water storage and purification water tank, the grey water silo is located below the grey water purification silo, the inlet end of the grey water silo is an open structure located at the bottom, and the outlet end of the grey water silo is a tapered structure located at the top; the upper sensor on the water storage tank and the lower sensor on the water storage tank are respectively provided at the upper and lower ends of the side of the coaxial integrated grey water storage and purification water tank.

[0009] Preferably, the grey water storage and purification system further comprises a sewage tank, a sewage drain valve and a sewage sewer pipe; the sewage tank is arranged at the bottom of the coaxial integrated grey water storage and purification tank, the outlet end of the sewage tank is connected to the sewage sewer pipe, and a sewage drain valve is provided on the sewage sewer pipe.

[0010] Preferably, the reclaimed water reuse system includes a reclaimed water reuse water intake pipe, and the inlet end of the reclaimed water reuse water intake pipe is connected to the outlet end of the reclaimed water tank.

[0011] Preferably, the grey water reuse system also includes a toilet, a grey water intake for cleaning the floor of a household greening plant, and a municipal grey water reuse recovery pipe, and the outlet end of the grey water reuse pipe is connected to the toilet, the grey water intake for cleaning the floor of a household greening plant, and the municipal grey water reuse recovery pipe respectively.

[0012] Preferably, the water-saving system further comprises an electric control box, which controls the sewage ash water diversion valve, the ash water pump, the lower sensor of the water collecting tank, the upper sensor of the water collecting tank, the upper sensor of the water storage tank and the lower sensor of the water storage tank.

[0013] Additional aspects and advantages of the invention will become apparent from the description which follows, or may be learned by practice of the invention.

[0014] The household greywater recycling system of the present invention has significant technical advantages and practical value, and can significantly improve household water-saving efficiency and promote the popularization of social water-saving awareness. First, the system adopts a normally open port design, so that sporadic greywater from hand washing, washing, laundry, etc. can automatically flow into the recycling system without manual intervention, greatly lowering the threshold for use, enabling full participation of family members in water conservation, and significantly improving urban water conservation efficiency. According to calculations, the system can recycle 40%-70% of household water consumption, with a water-saving effect far exceeding traditional manual recycling methods. It can directly reduce the tap water consumption of community residents by about 25% and reduce the discharge of domestic sewage by community residents by about 48%.

[0015] Secondly, the system utilizes intelligent purification technology to ensure that treated reclaimed water meets the standards of sewage treatment plants. The resulting clean, safe water can be used for a wide range of household applications, including flushing toilets, mopping, and watering. It can also be expanded to public uses such as community landscaping and municipal cleaning, significantly expanding the scope of reclaimed water reuse. For heavily contaminated wastewater, users can switch to direct discharge mode with a single click, making it easy to operate and avoiding the waste of system operating resources.

[0016] Laying a municipal reclaimed water recycling network in residential communities, centrally utilizing excess household reclaimed water for landscaping irrigation, road sweeping, and other purposes, can further maximize water conservation benefits and establish a community- and even city-level water conservation cycle. This system not only improves household water conservation efficiency but also promotes the sustainable use of water resources in society, with significant economic, ecological, and social benefits. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of the embodiments with reference to the accompanying drawings, in which: Figure 1 It is a schematic structural diagram of an embodiment of the present invention; in, Figure 1 The corresponding relationship between the reference numerals and component names is as follows: 1 is the gray water collection system, 11 is the face washing sink, 12 is the vegetable washing sink, 13 is the washing machine, 14 is the sewage gray water diversion valve, 15 is the sewage discharge pipe, 16 is the gray water recovery pipe, 17 is the sewage downpipe, 2 is the gray water centralized transportation system, 21 is the gray water collection tank, 22 is the gray water fine filter, 23 is the gray water pump, 24 is the gray water pump outlet pipe, 25 is the synchronous quantitative gray water purifier filler, 26 is the sensor under the collection tank, 27 is the sensor on the collection tank, 3 is the gray water storage tank, Storage and purification system, 31 is a coaxial integrated gray water storage and purification tank, 32 is a gray water tank, 33 is a gray water purification tank, 34 is a gray water tank, 35 is a sewage tank, 36 is a sewage discharge valve, 37 is a sewage sewer pipe, 38 is a sensor on the water storage tank, 39 is a sensor under the water storage tank, 4 is a gray water reuse system, 41 is a gray water reuse water intake pipe, 42 is a toilet, 43 is a gray water intake for household greening floor cleaning, 44 is a municipal gray water reuse recovery pipe, and 5 is an electrical control box. DETAILED DESCRIPTION

[0018] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that, in the absence of conflict, the embodiments of the present application and the features therein can be combined with each other.

[0019] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from the description. Therefore, the scope of protection of the present invention is not limited to the specific embodiments disclosed below.

[0020] The structure of the present invention includes a gray water collection system 1, a wash basin 11, a vegetable washing basin 12, a washing machine 13, a sewage gray water diversion valve 14, a sewage discharge pipe 15, a gray water recovery pipe 16, a sewage downpipe 17, a gray water centralized transportation system 2, a gray water collecting tank 21, a gray water fine filter 22, a gray water pump 23, a gray water pump outlet pipe 24, a synchronous quantitative gray water purifier filler 25, a lower sensor 26 of the collecting tank, an upper sensor 27 of the collecting tank, a gray water storage and purification system 3, a coaxial integrated gray water storage and purification tank 31, a gray water bin 32, a gray water purification bin 33, a gray water bin 34, a sewage bin 35, a sewage discharge valve 36, a sewage downpipe 37, an upper sensor 38 of the storage tank, a lower sensor 39 of the storage tank, a gray water reuse system 4, a gray water reuse water intake pipe 41, a toilet 42, a gray water intake for household greening floor cleaning 43, a municipal gray water reuse recovery pipe 44 and an electric control box 5.

[0021] like Figure 1The drainage pipes of the wash basin 11, the vegetable washing basin 12 and the washing machine 13 of the gray water collection system 1 are respectively provided with a sewage gray water diverter valve 14, and the sewage gray water diverter valve 14 is connected to the inlet end of the gray water recovery pipe 16, and the gray water recovery pipe 16 is connected to the gray water centralized transportation system 2; the sewage gray water diverter valve 14 is connected to the inlet end of the sewage discharge pipe 15, and the outlet end of the sewage discharge pipe 15 is connected to the sewage sewer pipe 17.

[0022] The inlet end of the ash water collecting tank 21 of the ash water centralized transportation system 2 is connected to the ash water recovery pipe 16, and an ash water fine filter 22 is inclinedly arranged at the upper end of the ash water collecting tank 21. An upper sensor 27 of the collecting tank is arranged below the position of the ash water fine filter 22 on the ash water collecting tank 21, and a lower sensor 26 of the collecting tank is arranged at the lower position of the ash water collecting tank 21; the inlet end of the ash water pump 23 is connected to the outlet end of the ash water collecting tank 21, and the outlet end of the ash water pump 23 is provided with an ash water pump outlet pipe 24 and a synchronous quantitative ash water purifier filler 25 in parallel.

[0023] The inlet end of the coaxial integrated grey water storage and purification water tank 31 of the grey water storage and purification system 3 is connected to the grey water pump outlet pipe 24, and the coaxial integrated grey water storage and purification water tank 31 is provided with a grey water bin 32, a grey water purification bin 33 and a medium water bin 34. The grey water bin 32 is on the upper part of the coaxial integrated grey water storage and purification water tank 31, the grey water purification bin 33 is arranged below the grey water bin 32, and the medium water bin 34 is arranged inside the coaxial integrated grey water storage and purification water tank 31, and the medium water bin 34 is arranged below the grey water purification bin 33. The inlet end of the medium water bin 34 is an open structure arranged at the bottom, and the outlet end of the medium water bin 34 is a tapered structure arranged at the top; the sewage bin 35 is arranged at the bottom of the coaxial integrated grey water storage and purification water tank 31, and the outlet end of the sewage bin 35 is connected to the sewage sewer pipe 37, and the sewage sewer pipe 37 is provided with a sewage drain valve 36; the water tank upper sensor 38 and the water tank lower sensor 39 are respectively arranged at the upper and lower ends of the side of the coaxial integrated grey water storage and purification water tank 31.

[0024] The inlet end of the water reuse pipe 41 of the water reuse system 4 is connected to the outlet end of the water tank 34; the outlet end of the water reuse pipe 41 is connected to the toilet 42, the water intake port 43 for household greening floor cleaning, and the municipal water reuse recovery pipe 44.

[0025] The electric control box 5 controls the sewage ash water diversion valve 14, the ash water pump 23, the water collecting tank lower sensor 26, the water collecting tank upper sensor 27, the water storage tank upper sensor 38 and the water storage tank lower sensor 39.

[0026] Household water facilities, such as washbasins 11, generate a significant amount of wastewater (water that has not been selectively diverted for discharge, hereinafter referred to as wastewater) that needs to be discharged during daily household use. We manually select and direct the heavily polluted wastewater (hereinafter referred to as sewage) through the sewage-ash water diversion valve 14, through the sewage discharge pipe 15, and into the municipal sewage network. Less polluted wastewater (hereinafter referred to as graywater) flows through the sewage-ash water diversion valve 14, through the gray water recovery pipe 16, and into the upper chamber of the gray water collection tank 21. It then flows through the gray water fine filter 22 and into the lower chamber of the gray water collection tank 21 for collection.

[0027] The wastewater generated by the kitchen sink 12 is manually selected. Severely polluted and heavily oily wastewater is discharged directly into the sewage sewer pipe 17 by gravity through the sewage ash water diversion valve 14 and the sewage discharge pipe 15, where it is then discharged into the municipal sewage network. The less polluted gray water is filtered through the coarse filter provided with the sink, passed through the sewage ash water diversion valve 14 and the gray water recovery pipe 16, and flows into the upper chamber of the gray water collection tank 21 by gravity. It is further filtered through the gray water fine filter 22 before entering the lower chamber of the gray water collection tank 21 for collection.

[0028] The heavily polluted, detergent-rich wastewater generated by a household washing machine 13 during the wash cycle is discharged directly into the municipal sewage network via the sewage gray water diversion valve 14, sewage discharge pipe 15, and sewage sewer pipe 17. The gray water generated during the rinse cycle also flows through the gray water diversion valve 14, gray water recovery pipe 16, and into the upper chamber of the gray water collection tank 21. It then passes through the gray water fine filter 22 and enters the lower chamber of the gray water collection tank 21 for collection.

[0029] The sewage-ashwater diverter valve 14 is a specially designed diverter valve for this system. It is used to divert the flow of sewage directly to the sewage system and to the ashwater recovery system. The diverter valve has two operating modes: electric and manual, tailored to the needs of different users, making it easier for operators to choose between ashwater recovery and direct sewage discharge.

[0030] The sewage discharge pipe of the original household water facilities is adjusted to connect to the interface of the sewage ash water diverter valve 14 and incorporated into the system for use. The outlet position remains unchanged and is still connected to the original sewage downpipe 17.

[0031] The grey water recovery pipe 16 is a grey water recovery pipe configured by the system, and its specific layout is determined by the actual situation on site. Its function is to connect the recovered grey water to the upper cavity of the grey water collecting tank 21.

[0032] The sewage sewer pipe 17 is the inlet of the sewage sewer system actually arranged in the residence.

[0033] Graywater collection tank 21 collects all recyclable graywater, maintaining normal, stable system operation and maximizing user habits for each water user. Recycled graywater is either poured directly into the upper chamber of graywater collection tank 21 or flows through graywater recovery pipe 16. It then passes through graywater fine filter 22 to remove fine solid impurities before being collected in the lower chamber of graywater collection tank 21.

[0034] The solid particle impurities filtered out of the gray water fine filter 22 are gradually concentrated to the lower part of the fine filter under the action of the hydraulic pressure in the gray water tank, making it easy to manually remove them.

[0035] When the gray water collected in the lower chamber of the gray water collection tank 21 reaches a certain level, the upper tank sensor 27 controls the electrical control box 5 to activate the gray water pump 23. The gray water collected in the lower chamber of the gray water collection tank 21 is pumped through the gray water pump outlet pipe 24 to the coaxial gray water storage and purification tank 31 for storage and purification. When the gray water level in the lower chamber of the gray water collection tank 21 drops to the minimum level, the lower tank sensor 26 activates, controlling the electrical control box 5 to shut down the gray water pump 23 and stop pumping the gray water.

[0036] The grey water pump outlet pipe 24 delivers the recovered grey water pumped out by the grey water pump 23 to the coaxial integrated grey water storage and purification water tank 31. The arrangement is specifically made according to the actual situation of the installation site.

[0037] The synchronous quantitative grey water purifier filler 25 is specially designed for this system and can automatically run in parallel with the grey water pump 23. It automatically adds the grey water purifier to the grey water pumped out by the grey water pump 23 in a predetermined ratio and performs storage and purification on the recovered grey water.

[0038] The synchronized quantitative greywater purifier dispenser 25 is equipped with a porous partition. This partition serves to separate the upper and lower chambers of the dispenser. It withstands the gravity of the purifier rubber silo and the purifier in the upper chamber, while also allowing the pressurized greywater to pass through with minimal resistance. The porous partition's pores can be arbitrarily configured, but the porosity should be greater than 40%. The upper chamber of the synchronized quantitative greywater purifier dispenser 25 is equipped with a purifier rubber silo for storing the purifier. A sealed upper cover is located at the top of the synchronized quantitative greywater purifier dispenser 25, containing the purifier dosing port. To add purifier, first pump out the greywater from the greywater collection tank 21 and lower the water level to below the required lower water level. Then, open the dosing port to add purifier. After completion, slowly add water to the greywater collection tank 21 until all air in the purifier rubber silo is expelled. The dosing port is then closed and sealed. A purifier filling pipe connection port is located above the synchronized quantitative graywater purifier filler 25 for connecting to the purifier filling pipe, enabling quantitative and accurate addition of purifier to the recovered graywater. A purifier flow control valve is installed below the purifier filling pipe to control the purifier filling amount. The purifier filling flow rate is calibrated by opening the purifier flow calibration valve installed at the rear end and temporarily sealing the purifier filling pipe. The purifier flow calibration operation is completed by closing the purifier flow calibration valve and opening the temporarily sealed purifier filling pipe.

[0039] The coaxial integrated grey water storage and purification tank 31 is the technical core of this system. The tank is divided into a grey water tank 32, a grey water purification tank 33, a grey water tank 34, and a sewage tank 35. The functions of each tank section are relatively independent and do not interfere with each other. The tank capacities are compatible with each other and automatically balanced. The grey water entry, grey water extraction, and sewage discharge operations of the sewage tank do not affect each other. When the grey water from the grey water purification tank 33 flows to the grey water tank 34, the grey water flow rate increases due to the decrease in spatial cross-sectional area. When the grey water enters the inlet end of the grey water tank 34, the spatial cross-sectional area increases and the grey water flow rate decreases. In the change of the grey water flow rate and under the combined action of gravity and inertia, the pollutant flocculation and particulate impurities in the grey water can be better and more efficiently precipitated and separated, and the grey water moves upward to the grey water tank 34 and is taken out from the outlet end for reuse.

[0040] Once municipal greywater recycling pipe 44 is in place, any remaining greywater left over from household use can be automatically injected into the municipal greywater recycling pipe 44 system via the greywater recycling pipe 41. This allows for municipal reuse of excess household greywater and maximizes the reuse of purified household greywater (the amount of greywater that can be fed into the municipal greywater recycling system can reach approximately 20%-30% of a household's water consumption). If municipal greywater recycling pipe 44 is not in place, this interface can be used to shut off the household's fully automatic greywater recovery, purification, and reuse system, implementing closed-loop operation.

[0041] During closed-circuit operation, the coaxial integrated graywater storage and purification tank 31 is equipped with an upper tank sensor 38. When the tank water level reaches the upper limit, the upper tank sensor 38 activates, controlling the electrical control box 5 to set the sewage graywater diverter valve 14 to the normally open position on the sewage side. This allows wastewater from each household to flow directly through the sewage discharge pipe 15 and into the sewage sewer pipe 17, where it is then discharged into the municipal sewage network. This suspends the graywater recovery, purification, and reuse system to minimize resource waste.

[0042] When the water level in the coaxial integrated grey water storage and purification tank 31 is insufficient, the sensor 39 under the tank works to control the electrical control box 5 to start the alarm system alarm and start automatic or manual water replenishment at the same time, so that the water level in the coaxial integrated grey water storage and purification tank 31 reaches the required water level to meet the family's toilet cleaning needs.

[0043] The sewage that needs to be discharged from the sewage tank 35 is discharged into the sewage sewer pipe 37 through the sewage discharge valve 36 at a regular and quantitative manner and then enters the municipal public sewage pipe network for discharge.

[0044] The water inlet pipe of the toilet 42 is connected to the recycled water intake pipe 41, and the water for toilet cleaning is automatically pressed into the toilet cleaning water tank for standby use based on the water level pressure difference of the coaxial integrated gray water storage and purification water tank 31.

[0045] The 43rd water intake for household landscaping floor cleaning is an extension of household water reuse, increasing the amount of water reused in the home. (The water used for floor cleaning can be returned to the system for purification and reuse after use.) The municipal water reuse and recovery pipe 44 interface requires support from the municipal public pipe network. Until the municipal water reuse and recovery pipe 44 is complete, this interface can operate in a closed circuit. Once the municipal water reuse and recovery pipe 44 is complete, it will be used through this interface and the municipally supported public water recovery pipe network. Municipally recycled water, treated and treated for household use, can be used for public toilet cleaning, community and municipal landscaping irrigation, and community and municipal road sweeping and cleaning.

[0046] The electric control box 5 is the electric control core of the household fully automatic grey water recovery, purification, treatment and reuse system, which centrally controls the normal operation of the sewage grey water diversion valve 14, the upper and lower water level sensors of the grey water collecting tank 21, namely the lower sensor 26 and the upper sensor 27 of the collecting tank, the grey water pump 23, the coaxial grey water storage and purification tank 31, the upper sensor 38 and the lower sensor 39 of the collecting tank (the upper sensor 38 of the collecting tank is to be installed before the supporting project of the public grey water recovery pipe network is completed), and the sewage drain valve 36.

[0047] The invention has the advantages of simple structure, convenient installation and simple operation, and can be operated autonomously to add an ash water purifier filler, thereby further expanding the scope of recoverable ash water.

[0048] The purified reclaimed water meets reclaimed water standards and has a wide range of reuse options. The system significantly reduces water consumption, reaching 40%-70% of residential water consumption, far exceeding traditional manual recycling methods. The implementation of this invention can directly reduce tap water consumption by approximately 25% for residents, and can reduce overall tap water consumption by approximately 48%. It can also reduce the discharge of domestic sewage by approximately 48%.

[0049] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that the present invention is susceptible to various modifications and variations. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. Household grey water recycling, purification, treatment and reuse water-saving system, characterized by: The water-saving system comprises a grey water collection system (1), a grey water centralized transportation system (2), a grey water storage and purification system (3) and a reclaimed water reuse system (4); the outlet of the grey water collection system (1) is connected to the inlet of the grey water centralized transportation system (2), the outlet of the grey water centralized transportation system (2) is connected to the inlet of the grey water storage and purification system (3), and the outlet of the grey water storage and purification system (3) is connected to the inlet of the reclaimed water reuse system (4).

2. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 1, characterized in that: The grey water collection system (1) comprises a face washing pool (11), a vegetable washing pool (12), a washing machine (13), a sewage-ash water diverter valve (14) and a grey water recovery pipe (16); the drainage pipes of the face washing pool (11), the vegetable washing pool (12) and the washing machine (13) are respectively provided with a sewage-ash water diverter valve (14), the sewage-ash water diverter valve (14) is connected to the inlet end of the grey water recovery pipe (16), and the grey water recovery pipe (16) is connected to the grey water centralized transportation system (2).

3. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 2, characterized in that: The ash water collection system (1) further comprises a sewage discharge pipe (15) and a sewage downpipe (17); the sewage ash water diversion valve (14) is connected to the inlet end of the sewage discharge pipe (15); and the outlet end of the sewage discharge pipe (15) is connected to the sewage downpipe (17).

4. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 1, characterized in that: The gray water centralized conveying system (2) comprises a gray water collecting tank (21), a gray water fine filter (22), a lower sensor (26) and an upper sensor (27). The inlet end of the gray water collecting tank (21) is connected to the gray water recovery pipe (16). The gray water fine filter (22) is tiltedly arranged at the upper end of the gray water collecting tank (21). The upper sensor (27) is arranged below the position of the gray water fine filter (22) on the gray water collecting tank (21). The lower sensor (26) is arranged at a lower position on the gray water collecting tank (21).

5. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 4 is characterized by: The centralized grey water delivery system (2) further comprises a grey water pump (23), a grey water pump outlet pipe (24) and a synchronous quantitative grey water purifier filler (25); the inlet end of the grey water pump (23) is connected to the outlet end of the grey water collecting tank (21); a three-way pipe fitting is provided at the outlet end of the grey water pump (23), wherein the straight outlet end of the three-way pipe fitting is connected to the inlet end of the synchronous quantitative grey water purifier filler (25), and the lateral vertical outlet end of the three-way pipe fitting is connected to the grey water pump outlet pipe (24).

6. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 1, characterized in that: The grey water storage and purification system (3) comprises a coaxial integrated grey water storage and purification water tank (31), a grey water bin (32), a grey water purification bin (33), a medium water bin (34), a water tank upper sensor (38), and a water tank lower sensor (39); the inlet end of the coaxial integrated grey water storage and purification water tank (31) is connected to the grey water pump outlet pipe (24); the coaxial integrated grey water storage and purification water tank (31) is provided with a grey water bin (32), a grey water purification bin (33), and a medium water bin (34); the grey water bin (32) is located in the coaxial integrated grey water storage and purification water tank (31); The grey water purification tank (33) is arranged at the upper part of the purified water tank (31) below the grey water tank 32, the intermediate water tank (34) is arranged inside the coaxial integrated grey water storage and purification tank (31), the intermediate water tank (34) is arranged below the grey water purification tank (33), the inlet end of the intermediate water tank (34) is an open structure arranged at the bottom, and the outlet end of the intermediate water tank (34) is a tapered structure arranged at the top; the upper water tank sensor (38) and the lower water tank sensor (39) are respectively arranged at the upper end and the lower end of the side of the coaxial integrated grey water storage and purification tank (31).

7. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 6, characterized in that: The grey water storage and purification system (3) further comprises a sewage tank (35), a sewage discharge valve (36) and a sewage sewer pipe (37); the sewage tank (35) is arranged at the bottom of the coaxial integrated grey water storage and purification tank (31), the outlet end of the sewage tank (35) is connected to the sewage sewer pipe (37), and the sewage sewer pipe (37) is provided with a sewage discharge valve (36).

8. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 1, characterized in that: The reclaimed water reuse system (4) comprises a reclaimed water reuse water intake pipe (41), wherein the inlet end of the reclaimed water reuse water intake pipe (41) is connected to the outlet end of the reclaimed water tank (34).

9. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 8, characterized in that: The reclaimed water reuse system (4) further comprises a toilet (42), a reclaimed water inlet (43) for cleaning the floor of a household greening plantation, and a municipal reclaimed water reuse recovery pipe (44). The outlet end of the reclaimed water reuse pipe (41) is respectively connected to the toilet (42), the reclaimed water inlet (43) for cleaning the floor of a household greening plantation, and the municipal reclaimed water reuse recovery pipe (44).

10. The household grey water recycling, purification, treatment and reuse water-saving system according to claim 1, characterized in that: The water-saving system further comprises an electric control box (5), wherein the electric control box (5) controls the sewage ash water diversion valve (14), the ash water pump (23), the water collecting tank lower sensor (26), the water collecting tank upper sensor (27), the water storage tank upper sensor (38), and the water storage tank lower sensor (39).

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