CN207660068U - A kind of cell water circulation utilization system - Google Patents

Abstract

The utility model discloses a residential area water recycling system. By setting a collecting device, a processing device and a reusing device, the collecting device realizes the collection of rainwater on the roof of the building and the surrounding rainwater of the residential area, and the processing device removes insoluble impurities in the rainwater. The preliminary treatment of rainwater has been realized. The rainwater storage tank provides good hydraulic conditions. The rainwater storage tank enables rainwater to be used across time and space; the oil separation tank allows the oil in the water to be separated and removed. The impurities are removed to improve the quality of the effluent water; on the one hand, it solves the problem of water accumulation on the roads of the community during heavy rains; on the other hand, it makes the water stored in sunny days available for use. Plant irrigation can also be mixed with municipal water supply according to specific conditions, which saves water resources and meets the water demand in different periods.

Description

A community water recycling system

technical field

The utility model belongs to the technical field of water treatment, and in particular relates to a water recycling system for a residential area.

Background technique

With the rapid development of urban construction, "sponge city", a new water resource management strategy and method, emerged as the times require. Sponge city is a new generation of urban stormwater management concept. It refers to the city's good "elasticity" in adapting to environmental changes and responding to natural disasters caused by rainwater. It can also be called "water elastic city". The international general term is "low-impact development stormwater system construction". When it rains, it absorbs, stores, infiltrates, and purifies water, and "releases" the stored water for use when needed. Like a sponge, a city has good "elasticity" in adapting to environmental changes and responding to natural disasters. When it rains, it absorbs, stores, infiltrates, and purifies water, and "releases" the stored water and uses it when needed. Improve the function of urban ecosystem and reduce the occurrence of urban flood disasters.

With the development of the economy and the increase of the population, the human demand for water resources continues to increase, coupled with the unreasonable exploitation and utilization of water resources, many areas have different degrees of water shortage problems, this phenomenon is called water resources shortage. The scarcity of water resources is a problem facing the world; water is an ordinary substance, but it is precious and the source of life in the process of maintaining the survival of human beings and other creatures on the earth. From the perspective of the entire hydrosphere, the seawater in the surface water accounts for about 97.5% of the entire hydrosphere, while the freshwater resources that can be directly used by humans only account for 0.00768%, which is extremely limited. Water resources are unevenly distributed across regions, further exacerbating water stress. Currently, two-thirds of the country's more than 600 cities have insufficient water supply, and one-sixth of them are severely short of water. If the existing water resources are not properly managed, as China's population reaches the upper limit of 1.6 billion in the middle of this century, China's per capita water resources will drop to the water shortage warning line of 1,700 cubic meters, and the water shortage situation will become more severe.

Water treatment refers to the physical and chemical measures taken to make the water quality meet certain usage standards. The purpose of water treatment is to improve water quality and make it meet certain water quality standards. According to different treatment methods, there are physical water treatment, chemical water treatment, biological water treatment and so on. At present, in living quarters, primary water sources are often used, and the used water is directly discharged to the sewage pipes, resulting in a large amount of waste of water sources, which cannot realize the reuse of water resources, resulting in the waste of various water resources in the living quarters. Oil is contained in water, and the pollution of oil to the environment is mainly manifested in the serious impact on the ecosystem and natural environment (soil, water body). The floating oil flowing into the water body will form an oil film to hinder the enrichment of oxygen in the atmosphere and cut off the oxygen in the water body. Source: Oily wastewater flows into the soil. Due to the adsorption and filtration of oil pollution by the soil layer, an oil film will also be formed on the soil, making it difficult for air to penetrate, hindering the proliferation of soil microorganisms, and destroying the particle structure of the soil layer. The domestic wastewater contains a large amount of kitchen oil, and the rainwater contains the oil caused by the rain washing the road surface. Therefore, in order to realize the reuse of domestic wastewater and rainwater, degreasing is also the key to treatment.

Utility model content

The purpose of the utility model is to provide a community water recycling system to overcome the deficiencies of the prior art.

In order to achieve the above object, the utility model adopts the following technical solutions:

A community water recycling system, including a collection device, a treatment device and a reuse device;

The collection device includes rainwater recovery pipes, domestic wastewater recovery pipes, rainwater collection wells, rainwater storage tanks and domestic wastewater storage tanks. The lower end of the rainwater recovery pipes is connected to the rainwater collection wells. In the pool, the lower end of the domestic wastewater recovery pipe is connected to the domestic wastewater storage tank; the rainwater storage tank is connected to the storage tank;

The treatment device includes a sedimentation tank connected to the water outlet of the domestic wastewater storage tank. The upper side wall of the sedimentation tank is provided with a water outlet. The water outlet of the sedimentation tank is connected to the grease trap. connected to the reservoir water inlet;

The recycling device includes a water pump, a main drainage pipe and branch drainage pipes arranged in the greening of the residential area; the water inlet of the water pump is connected to the storage tank, the water outlet of the pump is connected to the main drainage pipe, and the main drainage pipe is connected to the branch drainage pipes.

Further, an overflow pipe is provided at the upper end of the side wall of the rainwater collection well and the domestic waste water storage tank, and the overflow pipe is connected to the sewage pipe.

Further, the highest water level of the rainwater storage tank is higher than the position of the overflow pipe of the rainwater collection well.

Further, filter screens are all provided in the rainwater collection well, the rainwater storage tank and the domestic wastewater storage tank.

Further, the lower end of the side wall of the sedimentation tank is provided with a water inlet and the sewage outlet of the sedimentation tank, the upper end of the side wall of the sedimentation tank is provided with a drain outlet, and a grid baffle is arranged in the sedimentation tank, the water inlet of the sedimentation tank is located at the lower end of the grid baffle, and the drainage of the sedimentation tank The opening is located at the top of the grille.

Further, the grid baffle is arranged obliquely in the sedimentation tank, the grid baffle includes a plurality of horizontal bars arranged in parallel, and the grid baffle is arranged at an angle of 60° to the horizontal plane.

Further, a first baffle and a second baffle are vertically arranged in the grease trap, and the first baffle and the second baffle divide the grease trap into a first grease trap, a second grease trap and a third trap. In the oil area, the grease trap is located on the side wall of the upper end of the first oil trap area. There is a water inlet connected to the outlet of the sedimentation tank. An oil film frame is installed in the water inlet of the grease trap, and an oil barrier film is arranged in the oil film frame. The second baffle There is a water hole on the top, and the water hole on the side of the second baffle is connected with an elbow, and the water inlet of the elbow is located at the lower end of the second oil isolation area.

Further, the first baffle includes two oil separating plates respectively arranged at the upper end and the bottom of the oil trap, the two oil separating plates are not in the same vertical plane, and the two oil separating plates partially overlap.

Further, a water outlet is provided at the lower end of the side wall of the third grease trap of the grease trap, and a drainage pump is provided in the third grease trap of the grease trap, and the drain pump is connected to the water storage tank through a drain pipe; a cover plate is provided at the upper end of the grease trap .

Compared with the prior art, the utility model has the following beneficial technical effects:

The utility model is a residential area water recycling system, by setting a collecting device, a processing device and a reusing device; wherein the collecting device realizes the collection of rainwater on the roof of the building and the rainwater around the building in the residential area, and the processing device removes insoluble impurities in the rainwater. Preliminary treatment of rainwater, the rainwater storage tank is used for the preliminary collection of rainwater, preventing rainwater from directly impacting the rainwater storage tank, and the rainwater storage tank enables rainwater to be utilized across time and space; the utility model is designed to recycle domestic wastewater; among them The domestic wastewater filter mainly removes insoluble impurities, the grease trap allows the oil in the water to be separated and removed, the sedimentation tank removes some toxic and harmful substances in the domestic wastewater, and the water quality of the effluent is improved. The utility model is designed to treat the treated Water storage, on the one hand, solves the problem of water accumulation on roads in the community during heavy rains, and on the other hand, makes the water stored in sunny days available for use. The recycled water is mainly used for road watering and green plant irrigation. It is used in combination with municipal water supply, which saves water resources and at the same time meets the needs of water in different periods. The design of the utility model purifies the water that should have flowed into the municipal sewage pipeline through the preliminary treatment of rainwater and domestic wastewater, thereby The load on the sewage treatment plant is reduced, and road watering and irrigation of green plants can also improve air quality and improve the overall ecological environment.

Further, an overflow pipe is provided at the upper end of the side wall of the rainwater collection well and the domestic wastewater storage tank, and the overflow pipe is connected to the sewage pipe to prevent the water in the rainwater storage tank and the domestic wastewater storage tank from overflowing.

Further, when the effective volume of the sedimentation tank is constant, the grille baffle is set obliquely, that is, the effective area of the sedimentation tank is increased, the particle removal rate can be improved, the water flows from bottom to top, and the particles are deposited at the bottom of the inclined tube , and then slide down automatically.

Further, by setting the oil film frame at the water inlet of the oil separation tank, the oil separation film is used for preliminary oil removal, and then the second oil removal is realized by using two cross-set oil separation plates, and the oil layer floats on the upper end of the first oil separation area , a small part of the oil layer enters the second oil separation area, and the water in the second oil separation area enters the third oil separation area through the water outlet at the lower end of the second oil separation area, and is finally discharged through the drain outlet, realizing the four-stage oil removal treatment; Effectively filter the oil layer and floating objects in the water.

Description of drawings

Fig. 1 is the structural representation of the utility model.

Fig. 2 is a structural schematic diagram of the processing device of the present invention.

Among them, 1. Rainwater collection well; 2. Domestic waste water recovery pipe; 3. Rainwater storage tank; 4. Domestic waste water storage tank; 5. Rainwater recovery pipe; 6. Rainwater recovery main pipe; Sedimentation tank; 10. Grease trap; 11. Water storage tank; 13. Water pump; 14. Drainage main pipe; 15. Drainage branch pipe; 16. Grid baffle; 17. First baffle; 18. Second baffle; 19 , Oil film frame.

Detailed ways

Below in conjunction with accompanying drawing, the utility model is described in further detail:

As shown in Figure 1, a community water recycling system includes a collection device, a treatment device and a reuse device; wherein the collection device includes a rainwater recovery pipe 5, a domestic waste water recovery pipe 2, a rainwater collection well 1, a rainwater storage tank 3 and The domestic waste water storage tank 4, the lower end of the rainwater recovery pipe 5 is connected to the rainwater collection well 1, the bottom of the rainwater collection well 1 is connected to the rainwater storage tank 3 through the rainwater recovery main pipe 6, the rainwater collection well 1 and the domestic wastewater storage tank 4 sides The upper end of the wall is provided with an overflow pipe, and the overflow pipe is connected to the sewage pipe, and the lower end of the domestic wastewater recovery pipe 2 is connected to the domestic wastewater storage tank 4; the rainwater storage tank 3 and the domestic wastewater storage tank 4 are both connected to the storage tank 11, The highest water level of the rainwater storage tank 3 is higher than the overflow pipe position of the rainwater collection well 1;

The rainwater collection well 1, the rainwater storage tank 3 and the domestic wastewater storage tank 4 are all equipped with filter screens for removing impurities in the water quality;

The treatment device includes a settling tank 9 connected to the outlet of the domestic wastewater storage tank 4, the upper side wall of the settling tank 9 is provided with a water outlet, and the water outlet of the settling tank 9 is connected to the grease trap 10, and the grease trap 10 is provided with a Oil film 8; the oil separation film 8 is set at the water inlet of the oil separation tank 10;

The reuse device comprises a water pump 13, a drainage main pipe 14 and a drainage branch pipe 15 arranged in the greening of the community; Drain branch pipe 15.

As shown in Figure 2, the lower end of the side wall of the sedimentation tank 9 is provided with a water inlet and the sewage outlet of the sedimentation tank 17, and the upper end of the side wall of the sedimentation tank 9 is provided with a drain outlet, and the sedimentation tank 9 is provided with a grid baffle plate 16, and the inlet of the sedimentation tank 9 The water outlet is positioned at the lower end of the lattice baffle 16, the outlet of the settling tank 9 is positioned at the upper end of the lattice baffle 16, and the lattice baffle 16 is obliquely arranged in the sedimentation tank 9, and the lattice baffle 16 includes a plurality of horizontal bars arranged in parallel, and the lattice baffle 16 and the The horizontal plane is set at an angle of 60°; when the effective volume of the sedimentation tank is constant, the grid baffle plate 16 is inclined to increase the effective area of the sedimentation tank, which can improve the particle removal rate, and the water flow flows from bottom to top, and the particles are It settles at the bottom of the inclined tube and then slides down automatically.

In the grease trap 10, a first baffle plate 17 and a second baffle plate 18 are vertically provided. The first baffle plate 17 includes two oil separators respectively arranged on the upper end and the bottom of the grease trap 10. The two oil separators Unlike in the same vertical plane, where the two oil separators partially overlap, the first baffle 17 and the second baffle 18 divide the oil trap 10 into a first oil trap, a second oil trap and a third trap. In the oil area, the oil trap 10 is located at the upper end side wall of the first oil trap area and is provided with a water inlet, which is connected to the water outlet of the sedimentation tank. An oil film frame 19 is arranged in the water inlet of the grease trap 10, and an oil film frame is arranged in the oil film frame 19. The second baffle plate 18 is provided with a water hole, and the water hole of the second baffle plate 18 on one side of the second oil separation area is connected with an elbow, and the water inlet of the elbow is located at the lower end of the second oil isolation area; the oil separation tank 10 The lower end of the side wall of the third oil separation area is provided with a water outlet, and a drainage pump is arranged in the third oil separation area of the oil separation tank 10, and the drainage pump is connected to the water storage tank 11 through a drain pipe; the upper end of the oil separation tank 10 is provided with a cover plate; The water inlet of the grease trap is provided with an oil film frame 19, and the oil film is used for preliminary oil removal, and then the second oil removal is realized by using two cross-set oil separators. After entering the second oil separation area, the water in the second oil separation area enters the third oil separation area through the water outlet at the lower end of the second oil separation area, and finally is discharged through the drain outlet; the oil layer and floating objects in the water are effectively filtered;

Below in conjunction with accompanying drawing, structural principle of the present utility model and operation steps are further described:

The rainwater recovery standpipe 5 is connected to the rainwater collection well 1, the rainwater is imported into the rainwater storage tank 3 through the rainwater recovery main pipe 6, the domestic wastewater recovery pipe 2 is connected to the domestic wastewater storage tank 4, and the domestic wastewater is collected from the rainwater storage tank 3 The water outlet enters the sedimentation tank 9, and after preliminary sedimentation, it enters the grease trap to remove oil stains, and the treated domestic wastewater enters the storage tank for storage. In the main water pipes and branch pipes, road watering and green plant irrigation are carried out, thereby realizing the reuse of water resources.

Claims (9)

1. A community water recycling system, characterized in that it comprises a collecting device, a treatment device and a reusing device; The collection device includes a rainwater recovery pipe (5), a domestic waste water recovery pipe (2), a rainwater collection well (1), a rainwater storage tank (3) and a domestic waste water storage tank (4), and the lower end of the rainwater recovery pipe (5) is connected to To the rainwater collection well (1), the bottom of the rainwater collection well (1) is connected to the rainwater storage tank (3) through the rainwater recovery main pipe (6), and the lower end of the domestic wastewater recovery pipe (2) is connected to the domestic wastewater storage tank (4 ); The rainwater storage tank (3) is connected to the storage tank (11); The treatment device includes a sedimentation tank (9) connected to the outlet of the domestic waste water storage tank (4), the upper side wall of the sedimentation tank (9) is provided with a water outlet, and the outlet of the sedimentation tank (9) is connected to the grease trap (10 ), the grease trap (10) is provided with a grease trap (8), and the grease trap (10) outlet is connected to the water storage tank (11) water inlet; The reuse device includes a water pump (13), a drainage main pipe (14) and a drainage branch pipe (15) arranged in the greening of the community; the water inlet of the water pump (13) is connected to the water storage tank (11), and the water outlet of the water pump (13) is connected to To the main drainage pipe (14), the main drainage pipe (14) is connected to each branch drainage pipe (15). 2. A kind of community water recycling system according to claim 1, characterized in that an overflow pipe is provided at the upper end of the rainwater collection well (1) and the side wall of the domestic waste water storage tank (4), and the overflow pipe is connected to the sewage discharge pipeline. 3. A community water recycling system according to claim 1, characterized in that the maximum water level of the rainwater storage tank (3) is higher than the overflow pipe position of the rainwater collection well (1). 4. A kind of community water recycling system according to claim 1, characterized in that, the rainwater collection well (1), the rainwater storage tank (3) and the domestic waste water storage tank (4) are all provided with filter screens. 5. A kind of community water recycling system according to claim 1, characterized in that, the lower end of the side wall of the sedimentation tank (9) is provided with a water inlet and the sewage outlet of the sedimentation tank (17), and the upper end of the side wall of the sedimentation tank (9) is provided with There is a drain, and the settling tank (9) is provided with a grid baffle (16), the water inlet of the settling tank (9) is located at the lower end of the grid baffle (16), and the drain of the settling tank (9) is located at the grid baffle (16). upper end. 6. A community water recycling system according to claim 5, characterized in that the grid baffle (16) is obliquely arranged in the sedimentation tank (9), and the grid baffle (16) includes a plurality of horizontal bars arranged in parallel , grid baffle plate (16) is 60 ° angle setting with horizontal plane. 7. A kind of community water recycling system according to claim 1, characterized in that, a first baffle (17) and a second baffle (18) are vertically arranged in the grease trap (10), and the first baffle The plate (17) and the second baffle (18) divide the grease trap (10) into the first grease trap, the second grease trap and the third grease trap, and the grease trap (10) is located in the first grease trap The upper side wall of the oil area is provided with a water inlet connected to the water outlet of the sedimentation tank, an oil film frame (19) is provided in the water inlet of the grease trap (10), an oil film is provided in the oil film frame (19), and the second baffle ( 18) is provided with a water hole, and the second baffle plate (18) is located at the water hole on the side of the second oil separation area and is connected with an elbow, and the water inlet of the elbow is located at the lower end of the second oil isolation area. 8. A kind of community water recycling system according to claim 7, characterized in that, the first baffle (17) comprises two oil separators respectively arranged on the upper end and the bottom of the grease trap (10), two The oil separators are different from those in the same vertical plane, and the two oil separators partially overlap. 9. A kind of community water recycling system according to claim 7, characterized in that, the lower end of the side wall of the third grease trap of the grease trap (10) is provided with a water outlet, and the third grease trap of the grease trap (10) is A drainage pump is arranged inside, and the drainage pump is connected to the water storage tank (11) through a drainage pipe; the upper end of the grease trap (10) is provided with a cover plate.