Domestic sewage recycling water-saving system

Abstract

The invention discloses a domestic sewage recycling water-saving system. The domestic sewage recycling water-saving system comprises a water tank, wherein the water tank is in communication with a recovery main pipeline, the water tank is sequentially connected in series with a low-standard filter, a medium standard filter and a domestic water filter through the recovery main pipeline, the domestic water filter is in communication with a municipal water supply pipe through a life recovery pipe, a life recovery valve group is arranged in the life recovery pipe, one side of the domestic water filter communicates with the inner cavity to form a life filter valve group, the domestic water filter is in communication with the recovery main pipeline through the life filter valve group and a low standard recovery pipe, the communication position is located on the recovery main pipeline between the water tank and the low standard filter, the domestic water filter is in communication with the recovery main pipeline through the domestic filter valve group and a middle standard recovery pipe, the communication position is located on the recovery main pipeline between the low standard filter and the middle standard filter, and the water tank is in communication with the low standard water end through a low standard water pipe. According to the domestic sewage recycling water-saving system,a clear water structure can be realized, water can be reasonably distributed aiming at a water requirement structure and the like, and the water saving potential is exerted.

Description

technical field [0001] The application relates to the field of domestic water treatment, in particular to a water-saving system for recycling domestic sewage. [0002] technical background [0003] Chinese utility model CN201620188071.3 discloses a domestic sewage recycling water-saving system, including a pressurized water system and a water purification system. One end of the pedal is tilted, and an air bag is arranged on the lower part, and the air outlet end of the air bag is connected to a cylinder. , the sewage tank is connected with the external sewage discharge pipe, the top of the sewage discharge pipe is connected with the sink, the bottom end of the clean water storage tank is connected with a clean water faucet, and the top of the clean water storage tank enters The water outlet is connected to the water purification system through a connecting pipe. The water purification system includes a water purification filter element and a sewage tank. The water inlet at th...

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Problems solved by technology

[0004] One is that the filtration conditions are generally relatively simple and difficult to meet the actual domestic water needs. For example, the system disclosed in the above-mentioned patent is only provided with a first-level filter equipment; Filtration equipment, so the water purification standard after filtration is single, so it is impossible to match suitable circulating water for demand, especially when good water is waste or waste water is useless; thirdly, it cannot target the structure of water demand and the pollution of actual water Reasonable allocation of water at different levels; this actually leads to the inability to realize the maximum water saving potential and sometimes the water saving cannot be realized; There is still no water saving; in fact, the root cause is that the standard structure of circulating water is single, and the structure of water demand has hierarchical characteristics, so the circulating water in traditional technology often cannot meet the hierarchical requirements, so that the purpose of water saving is often not achieved

[0005] In addition, in the traditional domestic water circulation filtration system, the filtered water is generally placed in the storage tank for use. In fact, the water in the storage tank will generally have water quality problems after being placed for a long time. When it is used again, it is often unusable, so that the filtered water is re-polluted. At this time, the water user often discharges the re-polluted water completely or re-filters and purifies it thoroughly again, or directly discharges it without knowing that it is sewage. use, which in turn affects the quality of water used by the household as a whole; this actually leads to the inability to realize the maximum water saving potential and often not achieve water saving

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