CN110180255A - A kind of wastewater recycling system - Google Patents

Abstract

The embodiment of the present invention discloses a waste water recycling system, comprising: a grit chamber, a first water pipe, a first water storage bin, water purification equipment, a water storage device, and a water outlet pipe; the grit chamber is connected to an external waste water inlet pipe, For grit-filtering the wastewater discharged from the wastewater inlet pipe, one end of the first water pipe is connected to the grit chamber, and the other end is connected to the first water storage bin, which is used to transport the grit-filtered wastewater to the first water storage bin; the first water storage bin Connect the water inlet end of the water purification equipment, the water outlet end of the water purification equipment is connected to the water storage device, the water storage device is sealed and arranged in the first water storage bin, one end of the water outlet pipe is connected to the water storage device, and the other end is connected to the water system. The embodiment of the present invention effectively recycles the sewage produced by the building and the rainwater falling near the building, saving water resources.

Description

A waste water recycling system

technical field

Embodiments of the present invention relate to the technical field of wastewater treatment, and more specifically, relate to a wastewater recycling system.

Background technique

my country is a water-scarce country, with per capita water resources less than 1/4 of the world average. Of the more than 660 cities in the country, more than 400 have insufficient water supply, and more than 110 have severe water shortages; more than 30 of the 32 megacities with a population of more than one million suffer from long-term water shortages; among the 14 open coastal cities, There are 9 severe water shortages. Water shortage has become a bottleneck factor restricting my country's urban economic and social development.

In addition to water shortage, some cities in our country are also facing serious floods. In cities with abundant rainfall and frequent typhoons, they not only face the problem of water shortage, but also face the hidden danger of flood disasters during the rainy season.

At present, whether it is a commercial building or a residential building in a residential area, it is limited by the floor area ratio. Due to the tight building area, it is impossible to centrally recycle the domestic sewage generated in the building and the rainwater that falls near the building, resulting in a large amount of The loss of water resources also makes it difficult to alleviate the disasters caused by floods in the rainy season.

Contents of the invention

An embodiment of the present invention provides a waste water recycling system, which is built in the gap between the outer wall of the foundation pit and the outer wall of the underground structure, including: a grit chamber, a first water pipe, a first water storage tank, a clean water Equipment, water storage devices and outlet pipes;

The grit chamber is connected to an external waste water inlet pipe for grit filtration of the waste water discharged from the waste water inlet pipe. One end of the first water pipe is connected to the grit chamber, and the other end is connected to the second water pipe. A water storage bin is connected to transport the grit-filtered waste water to the first water storage bin;

The first water storage bin is connected to the water inlet end of the water purification equipment, the water outlet end of the water purification equipment is connected to the water storage device, and the water storage device is sealed and arranged in the first water storage bin, and the water outlet pipe One end is connected to the water storage device, and the other end is connected to the water system.

In the embodiment of the present invention, by setting a grit chamber and water purification equipment, the waste water collected and stored in the first water storage bin is gritted and filtered, and the purified water available for people is obtained and stored in the water storage device, and finally It enters the building through the outlet pipe for people to use, effectively recycles the sewage generated by the building and the rainwater falling near the building, and saves water resources.

Description of drawings

Embodiments of the present invention will be further described below in conjunction with accompanying drawings and embodiments. In the accompanying drawings:

Fig. 1 is a schematic cross-sectional view of a waste water recycling system provided by an embodiment of the present invention;

Fig. 2 is a schematic diagram of the structure of a waste water recycling system built in a community provided by an embodiment of the present invention;

Fig. 3 is a three-dimensional structural schematic diagram of a waste water recycling system provided by an embodiment of the present invention;

Fig. 4 is a schematic diagram of the bottom three-dimensional structure of the first water storage bin of a waste water recycling system provided by an embodiment of the present invention;

Fig. 5 is a schematic structural view of a grit chamber provided by an embodiment of the present invention;

Fig. 6 is a schematic cross-sectional view of a screw push rod for cleaning and sand settling provided by an embodiment of the present invention

Fig. 7 is a schematic cross-sectional view of a push plate cleaning and grit settling provided by an embodiment of the present invention

Fig. 8 is a schematic diagram of a controller driving the lifting rod to drive the drainage hose up and down according to an embodiment of the present invention;

Fig. 9 is a schematic diagram of a floating ball driving a drainage hose to lift up and down according to an embodiment of the present invention.

Detailed ways

In order to have a clearer understanding of the technical features, purposes and effects of the present invention, the specific implementation manners of the present invention will now be described in detail with reference to the accompanying drawings.

It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention. It should be noted that when an element is referred to as being “fixed on” or “disposed on” another element, it may be directly on the other element or there may be an intervening element at the same time. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. It should also be noted that the orientation terms such as left, right, up, and down in the embodiments of the present invention are only relative concepts or refer to the normal use state of the product, and should not be regarded as restrictive .

my country is a water-scarce country, with per capita water resources less than 1/4 of the world average. Of the more than 660 cities in the country, more than 400 have insufficient water supply, and more than 110 have severe water shortages; more than 30 of the 32 megacities with a population of more than one million suffer from long-term water shortages; among the 14 open coastal cities, There are 9 severe water shortages. This number is undoubtedly very alarming. China's current water conservancy projects are facing severe challenges. Flood disasters, water shortages, and water pollution have become major problems. In addition, some experts predict that when my country's population increases to 1.6 billion, per capita water resources will drop to 1,750 cubic meters, which is close to the internationally recognized water resource stress standard.

In addition to water shortages, some cities in my country are also facing serious floods. Take a certain city as an example: Due to the special geographical conditions, there are no large rivers, large lakes and large reservoirs in the territory, and the ability to store and detain floods is poor. The local water supply is seriously insufficient. The above water needs to be imported from rivers outside the city, so it has become one of the cities with severe water shortages in the country. At the same time, the city is also a city with abundant rainfall and frequent typhoons and storms. The average runoff depth for many years is much higher than the national average. According to statistics, the average number of days of precipitation in the city is more than 140 days, with nearly 10 days of heavy rain, and the annual precipitation is more than 3 billion cubic meters. However, the average annual water storage utilization of reservoirs and rivers is only 500 million cubic meters. The precipitation flows away in vain. Therefore, the city not only faces the problem of water shortage, but also faces the hidden danger of flood disaster during the rainy season. Although the establishment of a rainwater recycling system and the construction of reservoirs, ponds and dams and other water storage projects can achieve relatively good results, due to the large initial investment and the need for large-scale groundbreaking and construction, it takes up urban land space resources. Therefore, the rainwater recycling system and reservoirs, ponds and dams Water storage projects such as water storage are often difficult to promote and build in rapidly developing cities.

The inventor found that in the construction process of modern buildings, in order to facilitate foundation construction (such as underground structures, basements, etc.) and to provide space for foundation construction, it is often necessary to excavate foundation pits before construction. Specifically, the foundation pit is within the scope of the approved land, and the foundation pit support system is established first. The foundation pit support system is to ensure the safety of the underground structure construction and the surrounding environment of the foundation pit, and the support used for the side wall of the foundation pit and the surrounding environment , reinforcement and protection measures to ensure the normal use of adjacent buildings and municipal facilities; then excavate the pit according to the size of the design drawing and the elevation of the bottom of the foundation pit. Due to the existence of the foundation pit support system, there is often a certain gap between the outer wall of the foundation pit and the main structure such as the foundation or basement of the built building. After the construction of the underground structure of the building is completed, the earthwork needs to be backfilled to The gap between the outer walls of the excavation and the outer walls of the underground structure. It is understandable that with the progress of the times, the application of underground space in building development is getting higher and higher, and the demand is increasing. It is more and more common to build various underground buildings such as multi-storey basements and underground commercial streets. When it is necessary to build multi-storey basements or underground commercial streets and other buildings that utilize a large amount of underground space, the gap between the outer wall of the foundation pit that needs to be backfilled and the outer wall of the underground structure is correspondingly deep. If the gap is utilized It also reduces the cost of backfilling earthwork.

In view of this, the present invention provides a waste water recycling system built in the gap between the outer wall of the foundation pit and the outer wall of the underground structure, by collecting rainwater (such as rainwater in the community, rainwater on municipal roads), Domestic sewage (such as kitchen sewage, toilet sewage, air-conditioning drainage) and other waste water, the waste water is subjected to multi-stage sand settling, microbial treatment, disinfection and sterilization, and filtered, and is stored in the water storage space of the waste water recycling system. The domestic water or drinking water used by residents realizes the recycling of waste water, which saves water resources and effectively saves the construction cost of building a sponge city; at the same time, because the waste water recycling system is built on the outer wall of the foundation pit and the underground structure The gap between the outer walls does not occupy the ground space, does not occupy the building area, practical and worthy of popularization and application.

As shown in Figure 1 and Figure 2, Figure 1 is a schematic cross-sectional view of a wastewater recycling system provided by an embodiment of the present invention, and Figure 2 is a schematic structural diagram of a wastewater recycling system provided by an embodiment of the present invention built in a community . A waste water recycling system provided by an embodiment of the present invention includes:

Grit chamber 1, first water pipe 2, first water storage tank 3, water purification equipment 4, water storage device 5 and water outlet pipe 6; the grit chamber 1 is connected with the external waste water inlet pipe 7 for treating the waste water The waste water discharged from the water inlet pipe 7 is subjected to grit settling and filtration, one end of the first water pipe 2 is connected to the grit settling tank 1, and the other end is connected to the first water storage tank 3, for transporting the grit settling and sedimented waste water To the first water storage bin 3; the first water storage bin 3 is connected to the water inlet end of the water purification equipment 4, and the water outlet end of the water purification equipment 4 is connected to the water storage device 5, and the water storage device 5 is sealed Set in the first water storage bin 3, one end of the water outlet pipe 6 is connected to the water storage device 5, and the other end is connected to the water system. Since the waste water recycling system (hereinafter referred to as the system) provided by the embodiment of the present invention is built around the exterior wall of the underground structure of the building, the system is actually built around the building. Waste water, the waste water inlet pipe 7 (being waste water inlet pipe 7) that is used to collect waste water can be set at the top of this system, the domestic sewage that produces in the building, the rainwater in the rainwater pipe near the building, the municipal rainwater pipe on the road All the rainwater etc. can be drained into the waste water inlet pipe 7 to become the waste water recycled by the system. On this basis, on the top floor of the system, one or more grit chambers 1 arranged side by side can be built. When multiple grit chambers 1 are constructed, multi-stage grit chambers can be formed Pool 1, each level of grit chamber 1 can be separated by a partition wall 13, which is conducive to the sedimentation of sand and gravel in the grit chamber 1, and avoids the waste water falling in the inlet pipe 7 when only one grit chamber 1 is set. The waste water has an impact on the ongoing static sedimentation in the grit chamber 1 .

A multi-stage grit chamber 1 is set on the top of the system to perform preliminary grit filtration on the collected waste water, so as to filter out the larger sand particles carried by the waste water. In the lower layer of the multi-stage grit chamber 1, a plurality of horizontally arranged first water storage tanks 3 for storing waste water can be arranged accordingly, and the first water pipe 2 can be used to divert the waste water in the grit chamber 1 after grit settling and filtration To the first water storage bin 3. It should be noted that, in order to prevent the first water pipe 2 from being directly connected to the grit chamber 1 for waste water diversion, it is easy to suck the sand and gravel at the bottom of the grit chamber 1 and divert the sand and gravel to the first water storage bin 3 together. A drainage chamber 14 is set, and the waste water in the grit chamber 1 is first discharged into the drainage chamber 14 through the hard pipe at the bottom of the grit chamber 1, and then the first water pipe 2 connected to the drainage chamber 14 drains the waste water in the drainage chamber 14. The waste water is diverted to the first water storage bin 3 on the lower floor.

As shown in Figure 3 and Figure 4, Figure 3 is a schematic diagram of a three-dimensional structure of a wastewater recycling system provided by an embodiment of the present invention; Figure 4 is the bottom of a first water storage tank of a wastewater recycling system provided by an embodiment of the present invention Schematic diagram of the three-dimensional structure. In this system, a plurality of first water storage bins 3 can be set according to actual needs, and multiple layers of the first water storage bins 3 are arranged on vertical planes with different depths, and each layer can also be provided with a plurality of first water storage bins 3 in parallel The first water storage bins 3 between adjacent upper and lower floors are connected by a second water pipe 31, one end of the second water pipe 31 is arranged on the top of the first water storage bin 3 on the upper floor, and the other end is arranged on the top of the first water storage bin 3 on the lower floor . In this way, after the first water storage bin 3 on the upper layer is full of waste water, the second water pipe 31 on the top can direct the waste water to the first water storage bin 3 on the lower layer. In order to facilitate the maintenance of the first water storage bin 3 by the staff at a later stage, a ladder 32 for the staff to climb and a manhole 33 for the staff to pass through can be provided on the outside of the multi-layer first water storage bin 3 for ventilation. Ventilation holes 34 allow staff to pass between multi-layer first water storage bins 3 through the ladder 32 when maintaining the first water storage bins 3 .

It is worth noting that in this system, the water storage device 5 for storing the purified water filtered and purified by the water purification equipment 4 is sealed and arranged in the first water storage bin 3. After the first water storage bin 3 stores waste water, the waste water is passed through the purified water. After the equipment 4 is filtered and purified, it enters the water storage device 5 arranged in the first water storage bin 3. At this time, the waste water in the first water storage bin 3 gradually decreases, while the purified water in the water storage device 5 gradually increases. Under that increase, the volume of the water actually stored in the first water storage bin 3 remains unchanged. In addition, because the water storage device 5 is sealed and arranged in the first water storage bin 3, the waste water outside the water storage device 5 will not affect the water storage device. The clean water within 5 will be affected. In this system, the water storage device 5 is arranged in the first water storage tank 3, which greatly saves space and improves the capacity of wastewater. The first water storage bin 3 first stores the waste water, then filters and purifies the waste water through the water purification equipment 4, and finally fills the water storage device 5 with the purified water obtained after filtration and purification. In fact, the water stored in the water storage device 5 The total amount of purified water is the total amount of waste water stored in the first water storage bin 3. By arranging a water storage device 5 that can separate waste water and purified water in the first water storage bin 3, the first water storage bin 3 can be used as a physical space for storing waste water and purified water at the same time, thereby increasing the water capacity of the system.

In addition, considering that the water that residents need to use in their lives can be roughly divided into domestic water and drinking water, that is, the water used for daily washing or washing with a general degree of purification and the water used for drinking require a higher degree of purification. drinking purified water. Therefore, the water purification equipment 4 can also be arranged in stages in this system, that is, the water purification equipment 4 can include a primary water purification equipment 41 and a secondary water purification equipment 42, and the water storage device 5 includes a first water storage device 51 and the second water storage device 52, the first water storage bin 3 is connected to the water inlet end of the primary water purification equipment 41, and the water outlet end of the primary water purification equipment 41 is connected to the first water storage device 51 , used to filter the waste water in the first water storage bin 3 into domestic water and store it in the first water storage device 51; the water inlet end of the secondary water purification equipment 42 is connected with the first water storage bin 3 And/or the first water storage device 51, the water outlet end of the secondary water purification equipment 42 is connected to the second water storage device 52 for filtering waste water and/or domestic water into drinking water and storing it in the In the second water storage device 52 described above. Among them, the first-level water purification equipment 41 mainly filters waste water into domestic water, and the first water storage device 51 stores domestic water separately; The domestic water in the device 51 is filtered and purified into drinking water that can be directly consumed by residents, and the drinking water is stored separately by the second water storage device 52 . It can be understood that, in order to reduce the burden of the secondary water purification equipment 42 and improve the efficiency of the secondary water purification equipment 42, the water inlet end of the secondary water purification equipment 42 can be connected to the first water storage device 51, that is, the second The primary water purification equipment 42 is mainly responsible for filtering the domestic water filtered by the primary water purification equipment 41 into drinking water.

Therefore, on the basis that the secondary water purification equipment 42 is mainly responsible for filtering domestic water, the second water storage bin 8 can also be set separately. The first water storage device 51 communicates with the second water storage bin 8, the second water storage device 52 is arranged in the second water storage bin 8, and the second water storage bin 8 can be directly connected to the secondary water purification equipment 42, by The secondary water purification equipment 42 filters the domestic water in the second water storage tank 8 and discharges it into the second water storage device 52 for storage. It should be noted that, since the drinking water demand of the residents is usually much smaller than the domestic water demand of the residents, the number of the second water storage bins 8 can be set to be much smaller than the number of the first water storage bins 3, correspondingly, the second water storage device 52 The quantity can also be set to be much smaller than the quantity of the first water storage device 51 .

It should be noted that both the first water storage device 51 and the second water storage device 52 of the system can be equipped with a water pressure alarm device, which is set in advance according to the volume of the first water storage device 51 and the second water storage device 52. The corresponding water pressure threshold, when the primary water purification equipment 41 or the secondary water purification equipment 42 is continuously filtered, and the domestic water is input into the first water storage device 51 and the drinking water is input into the second water storage device 52, When the water pressure alarm device senses that the water pressure on the first water storage device 51 or the second water storage device 52 reaches the preset water pressure threshold, it can be determined that the water storage is full, and a signal can be sent to the first-level water purification equipment 41 or the secondary water purification equipment 42, so that the primary water purification equipment 41 or the secondary water purification equipment 42 stop filling clean water, preventing the water storage pressure from being too large and the first water storage device 51 or the second water storage device Device 52 bursts. After water supply, the water pressure of the first water storage device 51 or the second water storage device 52 gradually reduces, and the water pressure alarm device can remove the alarm signal, thereby starting the first-level water purification equipment 41 or the secondary water purification equipment 42 to restart Start working and fill with filtered clean water.

Specifically, in order to place the water storage device 5 stably and reliably in the first water storage bin 3, the bottom of the first water storage bin 3 is provided with a net plate 35, a net plate support frame 36 and a sedimentation tank 37 in order from high to low, so The water storage device 5 can be arranged on the net plate 35 , the net plate 35 supports the water storage device 5 , and the net plate support frame 36 fixes the net plate 35 . In addition, since the net plate 35 has grids, after the wastewater in the first water storage bin 3 is left to stand still, some sand and gravel will settle into the sedimentation tank 37 at the bottom of the net plate 35 . Said settling tank 37 is also connected with one end of a sedimentation blowdown pipe 38, and the other end of said settling blowdown pipe 38 is connected to the grit chamber 1, and the settling blowdown pipe 38 can discharge the sand in the settling tank 37 to the sedimentation tank 37. Sand pool 1.

As shown in Fig. 5, Fig. 5 is a schematic structural diagram of a grit chamber provided by an embodiment of the present invention. In order to process the sand deposited in the grit chamber 1, the system also includes: a grit chamber 9, the bottom of the grit chamber 1 is provided with a grit chamber 11, and the height of the grit chamber 9 is low At the height of the grit chamber 11, and the top of the grit well 9 is connected to the grit chamber 11, the sediment deposited in the grit chamber 1 is discharged to the grit chamber 11 through the grit chamber 11. sand well9. After the waste water enters the grit chamber 1, the sand in the waste water is deposited on the grit chamber 11 at the bottom of the grit chamber 1. Settled waste water is discharged into the first water storage bin 3 through the drainage hose 12. At this time, the sandstone on the grit chamber 11 can be discharged into the grit chamber 9 for storage, so as to avoid excessive accumulation in the grit chamber 1. If there is too much sand and gravel, it will affect the normal sand setting. Wherein, the bottom of the grit chamber 9 can be provided with a sand outlet 91 and a water seepage port 92. In order to store more sand and gravel, the height of the grit chamber 9 can be set deeper, and the outlet of the grit chamber 9 The position of the sand port 91 can be set on the basement wall of the first floor or the second floor of the basement. When cleaning the sand and gravel in the grit chamber 9, it is only necessary to reverse the truck to the bottom of the sand outlet 91 and open the sand outlet. Port 91, the sand and gravel in the grit chamber 9 can be unloaded on the truck. One end of a seepage pipe 93 is connected to the seepage port 92 at the bottom of the grit chamber 9 , and the other end of the seepage pipe 93 is connected to the grit chamber 1 .

As shown in FIG. 6 , FIG. 6 is a schematic cross-sectional view of a screw push rod for cleaning and sand settling provided by an embodiment of the present invention. In order to realize the automatic cleaning of sand on the grit chamber 11 , a lifting door 111 may be provided between the grit chamber 1 and the grit chamber 11 . Among them, a plurality of grit chambers 1 are separated by a partition wall 13, and a lift gate 111 is arranged on the partition wall 13. When the waste water enters the grit chamber 1, the lift gate 111 falls and cuts off the grit that communicates between each grit chamber 1. Groove 11, the waste water flows through the gap above the partition wall 13 to prevent the waste water from flowing through the sedimentation tank 11 and the lift gate 111, and wash away the sediment into the water storage bin 3 together; when the waste water settles, the lift gate 111 is lifted, The grit sink 11 runs through, which is convenient for sand discharge. The grit chamber 11 is provided with a screw push rod 112, and the screw push rod 112 is driven by a control motor 113 through a transmission device 114 to rotate and drive the grit in the grit chamber 11 to be discharged to the grit chamber. Well 9. When it is necessary to clean up the gravel, the lift door 111 is raised so that the multi-stage grit chamber 11 can be connected, the control motor 113 drives the transmission device 114 to rotate, and the transmission device 114 further drives the screw push rod 112 to rotate in a spiral, and the screw push rod The propeller blade on the 112 drives the grit on the grit chamber 11 to flow in the grit well 9 . Wherein, the cooperation between the transmission device 114 and the screw push rod 112 may be the cooperation between worms, so as to realize the conversion of kinetic energy on the vertical plane.

In addition, as shown in FIG. 7 , FIG. 7 is a schematic cross-sectional view of a push plate cleaning and grit settling provided by an embodiment of the present invention. In another embodiment, a lifting door 111 is set between the grit chamber 1 and the grit tank 11, and a vertical push plate 115 is set on the grit tank 11, and the push plate 115 is fixed on the horizontally arranged push rod 116, and the push rod 116 is connected with a rotary motor 118 through a crank linkage mechanism 117, and is used to drive the push plate 115 up and down to push the push plate back and forth driven by the rotary motor 118. The grit in the grit chamber 11 is discharged to the grit well 9 . Under the action of the crank-link mechanism 117, the movement direction of the push plate 115 is: move to the left-raise up-move to the right-move down and fall-move to the left, forming a quadrilateral-like motion on the vertical plane , thereby gradually pushing the grit in the grit chamber 11 into the grit well 9 .

In addition, in addition to the above two implementations, the grit chamber 11 can also be set as an inclined slope, and the grit in the grit chamber 11 can be flushed into the grit well 9 by the impact of clean water.

Specifically, in order to realize drainage in the grit chamber 1, an L-shaped drainage hose 12 is obliquely arranged in the grit chamber 1, and one end of the drainage hose 12 is connected with the first water pipe 2, the The other end of the drainage hose 12 is configured to float on the water surface during the process of the waste water in the grit chamber 1 passing through and the process of the sedimentation of the waste water and to be submerged in the sedimentation process during the drainage of the grit chamber 1 . In the waste water of sand tank 1. Since the grit chamber 1 needs a certain period of time to stand still for grit, therefore, in this system, the drainage of the grit chamber 1 is realized by controlling the bending of the L-shaped drainage hose 12. When the drainage hose 12 is straightened and not bent Next, the port at the other end of the drain hose 12 floats on the water surface and sticks out of the grit chamber 1, and the waste water in the grit chamber 1 cannot enter the drain hose 12; in the state where the drain hose 12 bends downward Next, the port at the other end of the drain hose 12 is immersed in waste water, and the waste water enters from the port and flows to the first water pipe 2 , and finally flows into the first water storage bin 3 .

As shown in Figure 8, the drain hose 12 is connected with a lifting rod 152 driven by a controller 151, and the lifting rod 152 is used to drive the drain hose 12 under the control of the controller 151. The other end is raised or lowered.

Or, as shown in Figure 9, the back of the other end of the drain hose 12 can be provided with a float 161, and the float 161 is connected to an air pump through a telescopic air tube 162, and the air pump is used to inflate to the The gas in the floating ball 161 or sucks the gas in the floating ball 161, so that the floating ball 161 expands and floats on the water surface and lifts the drain hose 12 or shrinks and sinks into the waste water. It should be noted that when the floating ball After 161 shrinks, the buoyancy provided by the floating ball 161 is not enough to prop up the drain hose 12, and the drain hose 12 sinks into the grit chamber 1 under its own gravity.

When all the first water storage bins 3 are full of water, close the water inlet valve of the waste water inlet pipe 7, the waste water in the grit chamber 1 and the first water storage bin 3 enters the sedimentation state at the same time, and the waste water in the first water storage bin 3 after standing for a certain period of time Start filtering. When the water level sensor senses that the filtration of the wastewater in the first water storage bin 3 is nearly completed, the drain hose 12 is lowered into the wastewater, and the sedimented wastewater in the grit chamber 1 flows into the drain hose 12 and flows through the first water pipe 2. To the first water storage bin 3. After the waste water in the grit chamber 1 has flowed out, the water level sensor at the bottom of the grit chamber 1 senses the change of the water level, and then sends a rising signal, and the drain hose 12 is raised under the action of the elevating rod 152 or placed on the floating ball. The top of 161 is pushed up under the action.

Further, referring to Fig. 3, in order to facilitate the confluence of waste water and filter some rubbish (such as leaves, paper scraps, etc.) carried in the waste water, the top of the grit chamber 1 is also provided with a waste water inlet, and the waste water enters A confluence cover 17 is arranged on the nozzle, and the waste water inlet pipe 7 is connected to the confluence cover 17; the bottom of the confluence cover 17 is provided with a conveyor belt filter 18 connected thereto, and the conveyor belt filter 18 is used for filtering waste water garbage and transfer the garbage to the garbage pool 19. In FIG. 3 , the waste water flows into the grit chamber 1 after passing through the conveyor belt filter screen 18 after converging through the confluence cover 17 .

Further, the water purification equipment 4 also has a built-in self-cleaning module, the water purification equipment 4 is connected to one end of a self-cleaning sewage pipe 43, and the other end of the self-cleaning sewage pipe 43 is connected to the grit chamber 1 , for discharging the sewage after the self-cleaning module has cleaned the water purification equipment 4 to the grit chamber 1 . It can be understood that the first-level water purification equipment 41 and the second-level water purification equipment 42 have a self-cleaning function. After the monitoring of the water flow reaches the early warning value (that is, the total amount of water flow reaches a certain value), the filter core will be automatically cleaned. When cleaning, the water inlet is automatically closed, and the filtered water flows back into the water purification equipment 4 for cleaning, and finally the cleaned sewage is discharged through the sewage outlet, and discharged to the external waste water inlet pipe 7 through the self-cleaning sewage pipe 43 .

For this system, manual management or Internet intelligent control management can be adopted. The manual management is specifically: according to the area, range and size of the weather forecast rainfall, the management personnel will discharge the sewage in the waste water inlet pipe 7 into the municipal water pipe in advance, so that Each of the first water storage tanks 3 of the system has enough space to absorb the ground rainwater and the rainwater collected by the municipal pipeline during rainfall, reduce the huge pressure of the rainwater on the municipal water pipeline during heavy rain and heavy rain, and prevent the municipal sewage pipeline from being unable to discharge the accumulated water in time , causing flooding to occur.

The Internet intelligent control management is specifically as follows: the system sets an intelligent background management module, and according to the area, range and size of the rainfall in the weather forecast, the intelligent background management module controls the waste water inlet pipe 7 and other pipeline control valves to advance the waste water into the water inlet pipe 7. An appropriate amount of sewage is discharged into the municipal water pipeline, so that each first water storage tank 3 of the system can leave enough space to absorb the ground rainwater and the rainwater collected by the municipal pipeline during rainfall, and reduce the huge pressure of rainwater on the municipal water pipeline during heavy rain and heavy rain , to avoid the occurrence of flooding when the municipal sewage pipes cannot remove the accumulated water in time.

After the system is built in the community, it can save the cost of the developer to build the rainwater collection pool, increase the space utilization rate of the building area, and after the system is put into use, it can provide circulating water supply, reduce the cost of water for residents, and provide high-quality drinking water; in addition, this system can also reduce the pressure of municipal water supply, no longer worry about water shortage when the water level of the reservoir is low, and this system can solve the phenomenon of flooding after rainfall, reducing the large economic cost of flooding at the national and local levels investment to reduce the economic losses caused by flooding of the country, companies and individuals.

Embodiments of the present invention have been described above in conjunction with the accompanying drawings, but the present invention is not limited to the above-mentioned specific implementations, and the above-mentioned specific implementations are only illustrative, rather than restrictive, and those of ordinary skill in the art will Under the enlightenment of the present invention, many forms can also be made without departing from the gist of the present invention and the protection scope of the claims, and these all belong to the protection of the present invention.

Claims (10)

1. a kind of wastewater recycling system, which is characterized in that the system building is in the lateral wall and underground structure of foundation pit Gap between exterior wall, comprising: setting pot, the first water pipe, the first water storehouse, purifier, water storage device and outlet pipe；

The setting pot is connect with external wastewater inlet pipe, and the waste water for the wastewater inlet pipe to be discharged carries out sand setting mistake Filter, one end of first water pipe are connect with the setting pot, and the other end is connect with first water storehouse, are used for sand setting mistake Waste water after filter is delivered to first water storehouse；

First water storehouse connects the water inlet end of the purifier, and the water outlet of the purifier connects the water storage dress It sets, the water storage device is sealed in first water storehouse, and one end of the outlet pipe connects the water storage device, separately Water system is accessed in one end.

2. wastewater recycling system according to claim 1, which is characterized in that the purifier includes level-one water purification Equipment and second level purifier, the water storage device include the first water storage device and the second water storage device, first water storehouse It is connect with the water inlet end of the level-one purifier, the water outlet of the level-one purifier and first water storage device connect It connects, for being domestic water by the waste water filtering in first water storehouse and being stored in first water storage device；

The system also includes there is the second water storehouse, first water storage device is connected to second water storehouse, and described second Second water storage device is provided in water storehouse；

The water inlet end of the second level purifier is connected with first water storehouse and/or the second water storehouse and/or described first The water outlet of water storage device, the second level purifier connects second water storage device, is used for waste water and/or domestic water It is filtered into drinking water and is stored in second water storage device.

3. wastewater recycling system according to claim 1 or 2, which is characterized in that the water storage device is water storage bag.

4. wastewater recycling system according to claim 1, which is characterized in that the first water storehouse described in multilayer is set respectively It is placed on the perpendicular of different depth, each layer is arranged in parallel with multiple first water storehouses, the first water storage between adjacent layer Storehouse is connected by the second water pipe, and one end of second water pipe is set to the top of first water storehouse on upper layer, other end setting In the top of the first water storehouse of lower layer.

5. wastewater recycling system according to claim 1, which is characterized in that the bottom of first water storehouse is from height It is disposed with web plate, web plate support frame and precipitation tank to low, the water storage device is set on the web plate, the precipitation tank On be also connected with one end of precipitating sewage pipe, the other end of the precipitating sewage pipe be connected to the setting pot and with it is external useless The connection of water water inlet pipe.

6. wastewater recycling system according to claim 1, which is characterized in that further include: catch-basin, the setting pot Bottom be provided with riffler, the height of the catch-basin is lower than the height of the riffler, and the top of the catch-basin with The riffler connection, the interior silt particle precipitated of the setting pot drain into the catch-basin through the riffler.

7. wastewater recycling system according to claim 6, which is characterized in that the bottom of the catch-basin is provided with out Sand mouth and seepage mouth, one end of soakaway trench is connected on the seepage mouth, and the other end of the soakaway trench is connected to the setting pot.

8. wastewater recycling system according to claim 6, which is characterized in that the setting pot and the riffler it Between be provided with overhead door, spiral handspike is provided on the riffler, the spiral handspike passes through transmission device by control motor Driving drives the sand setting in the riffler to drain into the catch-basin for rotating；

Or,

It is provided with overhead door between the setting pot and the riffler, vertical push plate is provided on the riffler, it is described Push plate is fixed on the push rod being laterally arranged, and the push rod is connected with rotating electric machine through crank link mechanism, in the rotation Drive the push plate lifting that the sand setting in the riffler is pushed to drain into the catch-basin back and forth under the drive of rotating motor.

9. wastewater recycling system according to claim 1, which is characterized in that the setting pot is tilted to be provided with L The scupper hose of type, one end of the scupper hose are connected with first water pipe, and the other end of the scupper hose is configured To bubble through the water column during setting pot precipitating upper and during setting pot draining being dipped in the sand setting In the waste water in pond；

The elevating lever driven by controller is connected on the scupper hose, the elevating lever is used for the control in the controller Driving is lower to drive the other end of the scupper hose to be raised and lowered；

Or,

The back side of the other end of the scupper hose is provided with floating ball, and the floating ball is connected with air pump by telescopic tracheae, The air pump is used to be inflated in the floating ball or draw the gas in the floating ball, so that floating ball expansion is bubbled through the water column And it jacks up the scupper hose or shrinks and sink in waste water.

10. wastewater recycling system according to claim 1, which is characterized in that also set up at the top of the setting pot There is water intake, confluence cover is provided on the water intake, the wastewater inlet pipe is connected on the confluence cover；

The bottom of the confluence cover, which is equipped with, is connected with conveyer belt filter screen, and the conveyer belt filter screen is for the rubbish in filtered wastewater The rubbish is simultaneously sent to garbage pool by rubbish.