Sewage recycling and conveying system

Abstract

The utility model relates to the technical field of sewage treatment and reutilization, and provides a sewage reutilization conveying system which comprises a sewage treatment system, a reclaimed water conveying system and a control device, and the sewage treatment system comprises a first power assembly, a first-stage filter and a second-stage filter which are sequentially connected in the water flow direction; the first power assembly is communicated with the sewage storage pool, and reclaimed water after the second-stage filter is communicated with the recycling water tank; the reclaimed water conveying system comprises a second power assembly and a surge tank which are sequentially connected in the water flow direction, the second power assembly is connected to an outlet of the recycling water tank, and the surge tank is connected to the scrubber tower; the sewage treatment system and the reclaimed water conveying system are electrically connected to the control device.

Description

Technical Field

[0001] This utility model belongs to the field of wastewater treatment and reuse technology, and in particular relates to a wastewater reuse and conveying system. Background Technology

[0002] The existing tablet production workshop has four gas scrubbing towers. The water used by the gas scrubbing towers accounts for half of the factory's total water consumption every day, and the amount of wastewater generated during the production process reaches hundreds of tons. If the wastewater can be treated, recycled, and reused, it can respond to the country's call for energy conservation and emission reduction, while also reducing water costs and lowering production costs.

[0003] Therefore, a wastewater reuse and transportation system is needed. Utility Model Content

[0004] In view of the shortcomings of the existing technology, the purpose of this utility model is to provide a wastewater reuse and transportation system that can treat wastewater after use into greywater and then supply it to the gas scrubbing tower, thereby reducing production costs.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] A wastewater reuse and transportation system includes a wastewater treatment system, a greywater transportation system, and a control device;

[0007] The wastewater treatment system includes a first power component, a first-stage filter, and a second-stage filter connected sequentially along the water flow direction. The first power component is connected to a wastewater storage tank, and the greywater after the second-stage filter is connected to a recycled water tank.

[0008] The greywater delivery system includes a second power unit and a pressure stabilizing tank connected sequentially along the water flow direction. The second power unit is connected to the outlet of the recycled water tank, and the pressure stabilizing tank is connected to the gas scrubbing tower.

[0009] Both the wastewater treatment system and the greywater delivery system are electrically connected to the control device.

[0010] Preferably, the first power assembly includes two sets, and the two sets of the first power assembly are arranged side by side.

[0011] Preferably, the first power assembly includes a first shut-off valve, a first water pump, a first check valve, and a second shut-off valve connected sequentially along the water flow direction on a pipeline. The first shut-off valve is connected to the outlet of the sewage storage tank, and the second shut-off valve is connected to the first-stage filter.

[0012] Preferably, the wastewater treatment system further includes a backwashing pipeline assembly, which includes a third shut-off valve, a backwashing pump, a second check valve, and a fourth shut-off valve connected sequentially along the water flow direction on the pipeline.

[0013] The third shut-off valve is connected to the recycled water tank, the fourth shut-off valve is connected to the backwash inlet of the first-stage filter via the first pipe, and the fourth shut-off valve is connected to the backwash inlet of the second-stage filter via the second pipe. The first pipe and the second pipe are connected in parallel.

[0014] The backwash outlets of both the first-stage filter and the second-stage filter are connected to an external discharge port.

[0015] Preferably, the second power assembly includes an eighth shut-off valve, a third filter, a second water pump, a third check valve, and a ninth shut-off valve connected sequentially along the pipeline;

[0016] The eighth shut-off valve is connected to the outlet of the recycled water tank, and the ninth shut-off valve is connected to the pressure stabilizing tank.

[0017] Preferably, an ultraviolet lamp is installed inside the pipeline between the second power component and the pressure stabilizing tank.

[0018] Preferably, the pipeline between the pressure stabilizing tank and the gas scrubbing tower is provided with a tenth shut-off valve, a fourth check valve and an eleventh shut-off valve in sequence along the water flow direction.

[0019] Preferably, the wastewater reuse and conveying system further includes a tap water supply component electrically connected to the control component. The tap water supply component includes a twelfth shut-off valve, a second water meter, and a thirteenth shut-off valve arranged sequentially along the water flow direction on the pipeline. The twelfth shut-off valve is connected to the tap water supply, and the thirteenth shut-off valve is connected to the recycled water tank.

[0020] Preferably, a fourteenth stop valve, a third water meter, and a fifteenth stop valve are sequentially installed along the water flow on the pipeline between the thirteenth stop valve and the recycled water tank, with the fifteenth stop valve connected to the recycled water tank.

[0021] The greywater delivery system also includes a parallel pipeline assembly, which includes a parallel pipeline and a sixteenth shut-off valve installed on the parallel pipeline. One end of the parallel pipeline is connected to the inlet of the fourteenth shut-off valve, and the other end is connected to the outlet of the fifteenth shut-off valve.

[0022] Preferably, the greywater delivery system further includes a cooling and return water assembly, which includes a return water pipe and an electrically controlled valve. One end of the return water pipe is connected to the outlet of the ninth shut-off valve, and the other end is connected to the greywater tank. The electrically controlled valve is electrically connected to a control device.

[0023] Compared with the prior art, the present invention has the following beneficial effects: In the present invention, the first power component pumps the sewage in the sewage storage tank to the first-stage filter for filtration. The filtered water is then filtered and adsorbed again by the second-stage filter and transported to the recycled water tank for storage, so as to be used by the greywater transportation system.

[0024] The greywater delivery system transports water to the pressure stabilizing tank via the second power unit, and then to the air scrubbing tower for use. The pressure stabilizing tank continuously provides water at a stable pressure to the air scrubbing tower. Because the pipeline distance between the recycled water tank and the air scrubbing tower is relatively long, and the air scrubbing tower consumes a large amount of water during operation, the water pressure in the pipeline can drop too quickly, causing instability. In this situation, the second power unit cannot replenish water to the pipeline in a short time. The pressure stabilizing tank, however, can supply water to the air scrubbing tower within a short period, allowing time for the second power unit to replenish water to the pipeline, thus ensuring stable water pressure in the pipeline.

[0025] This wastewater reuse and transportation system can convert treated wastewater into recycled water for reuse, reducing the amount of industrial wastewater discharged, responding to the national call for energy conservation and emission reduction, and lowering operating costs. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the wastewater treatment system in this utility model;

[0027] Figure 2 This is a schematic diagram of the greywater delivery system in this utility model.

[0028] The components include: 1. Wastewater treatment system; 100. First power unit; 300. Backwash pipeline assembly; 11. Second pressure gauge; 12. First-stage filter; 13. Second-stage filter; 14. First shut-off valve; 15. First water pump; 16. First check valve; 17. Second shut-off valve; 18. Third shut-off valve; 19. Backwash pump; 20. Second check valve; 21. Fourth shut-off valve; 22. First water meter; 23. Fifth shut-off valve; 24. Sixth shut-off valve; 25. Seventh shut-off valve; 26. First level gauge.

[0029] 2. Reclaimed water delivery system; 200. Second power unit; 28. Pressure stabilizing tank; 29. ​​Eighth shut-off valve; 30. Third filter; 31. Second water pump; 32. Third check valve; 33. Ninth shut-off valve; 34. Third pressure gauge; 35. Flexible connection; 36. Second drain pipe; 37. Ultraviolet lamp; 38. Tenth shut-off valve; 39. Fourth check valve; 40. Eleventh shut-off valve; 41. Fourth pressure gauge; 42. Twelfth shut-off valve; 43. Second water meter; 44. Thirteenth shut-off valve; 45. Fourteenth shut-off valve; 46. Third water meter; 47. Fifteenth shut-off valve; 48. Sixteenth shut-off valve; 49. Seventeenth shut-off valve; 50. Fifth check valve; 51. Eighteenth shut-off valve; 52. Return water pipe; 53. Electrically controlled valve; 54. Second drain shut-off valve; 55. First pressure stabilizing shut-off valve; 56. Second pressure stabilizing shut-off valve;

[0030] 6. Reclaimed water tank; 61. Overflow pipe; 62. First drain pipe; 63. First drain shut-off valve; 64. Second level gauge;

[0031] 7. Wastewater storage tank; 71. First level gauge; 8. Control device; 9. Gas scrubbing tower. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0033] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0034] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0035] In the description of this utility model, it should be noted that the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are used only for the convenience of describing this utility model and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0036] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0037] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0038] The embodiments of this utility model are described in detail below. Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0039] like Figure 1 and Figure 2 As shown, this embodiment provides a wastewater reuse and transportation system, which includes a wastewater treatment system 1, a greywater transportation system 2, and a control device 8.

[0040] The wastewater treatment system 1 includes a first power unit 100, a first-stage filter 12, and a second-stage filter 13 connected sequentially along the water flow direction. The first power unit 100 is connected to the wastewater storage tank 7, and the greywater filtered by the second-stage filter 13 is connected to the recycled water tank 6.

[0041] The first-stage filter 12 is used to filter impurities in the water, and the second-stage filter 13 can adsorb and filter impurities in the water a second time. For example, the second-stage filter 13 is used to adsorb color and odor in the water. The recycled water tank 6 is used to hold the recycled water filtered by the second-stage filter 13.

[0042] The greywater delivery system 2 includes a second power unit 200 and a pressure stabilizing tank 28 connected sequentially along the water flow direction. The second power unit 200 is connected to the outlet of the recycled water tank 6, and the pressure stabilizing tank 28 is connected to the scrubbing tower 9. The second power unit 200 is used to deliver water from the recycled water tank 6 to the pressure stabilizing tank 28, and the pressure stabilizing tank 28 continuously delivers water from the recycled water tank 6 to the scrubbing tower 9.

[0043] Both the wastewater treatment system 1 and the greywater delivery system 2 are electrically connected to the control device 8, which is used to control the automatic operation of the wastewater treatment system 1 and the greywater delivery system 2.

[0044] In this embodiment, the first power component 100 pumps the sewage in the sewage storage tank 7 to the first-stage filter 12 for filtration. The filtered water is then adsorbed by the second-stage filter 13 and transported to the recycled water tank 6 for storage, so that it can be used by the greywater delivery system 2.

[0045] The greywater delivery system 2 delivers water to the pressure stabilizing tank 28 via the second power unit 200, and then to the air scrubbing tower for use. The pressure stabilizing tank 28 continuously provides water at a stable pressure to the air scrubbing tower 9. Because the pipeline distance between the recycled water tank 6 and the air scrubbing tower 9 is relatively long, and the air scrubbing tower 9 uses a large amount of water during operation, the water pressure in the pipeline can drop too quickly, causing instability. In this situation, the second power unit 200 cannot replenish water to the pipeline in a short time. The pressure stabilizing tank 28 allows time for the second power unit 200 to replenish water to the pipeline, thus ensuring stable water pressure in the pipeline.

[0046] This wastewater reuse and transportation system can treat wastewater into greywater for recycling, reducing the amount of industrial wastewater discharged, responding to the national call for energy conservation and emission reduction, and lowering operating costs.

[0047] In this embodiment, the sewage storage tank 7 is the secondary sedimentation tank in the sewage treatment plant. The sewage in the secondary sedimentation tank is transported to the first-stage filter 12 and the second-stage filter 13 through the first power component 100. The purified water enters the recycled water tank 6.

[0048] A first level gauge 71 is installed in the wastewater storage tank 7. The first level gauge 71 is electrically connected to the control device 8 and is used to measure the liquid level in the wastewater storage tank 7. When the liquid level in the wastewater storage tank 7 reaches a predetermined value, the first power assembly 100 starts to work. Specifically, in this embodiment, a first level gauge 71 is installed in the secondary sedimentation tank, and this first level gauge 71 is used to detect the liquid level in the secondary sedimentation tank. Specifically, the first level gauge 71 is an ultrasonic level gauge electrically connected to the control device 8.

[0049] In this embodiment, the first-stage filter 12 is a quartz sand filter. The second-stage filter 13 is an activated carbon filter. Both the quartz sand filter and the activated carbon filter are canister filters. The quartz sand filter is mainly used to filter impurities in wastewater, while the activated carbon filter is used to filter impurities in the water filtered by the first-stage filter 12 and to adsorb color and odor from the water.

[0050] Preferably, the first power component 100 in the above-mentioned wastewater treatment system 1 includes two sets, which are arranged in parallel. One set of the first power components 100 is used as a backup system. When one set of the first power components 100 fails or needs maintenance, the other set of the first power components 100 is activated as a backup system to ensure that the wastewater reuse and transportation system can continue to work without delaying production.

[0051] Regarding the specific structure of the first power assembly 100, preferably, each group of first power assemblies 100 includes a first shut-off valve 14, a first water pump 15, a first check valve 16, and a second shut-off valve 17 connected sequentially along the water flow direction on a pipeline. The first shut-off valve 14 is connected to the outlet of the sewage storage tank 7. That is, in this embodiment, the first shut-off valve 14 is connected to the outlet of the secondary sedimentation tank. When the pipeline between the first shut-off valve 14 and the second shut-off valve 17, or the structural components installed on this section of the pipeline, malfunctions or requires maintenance, the first shut-off valve 14 and the second shut-off valve 17 are closed to cut off this section of the pipeline for easy maintenance. The function of the first check valve 16 is to prevent water backflow. Preferably, a first pressure gauge is provided between the first water pump 15 and the first check valve 16, and the pressure gauge is used to monitor the water pressure in this pipeline.

[0052] In this embodiment, two water pumps are installed. One pump serves as the water pump, while the other is used as a backup pump.

[0053] The wastewater treatment system 1 in this embodiment also includes a backwashing pipeline assembly 300. The backwashing pipeline assembly 300 includes a third shut-off valve 18, a backwashing pump 19, a second check valve 20, and a fourth shut-off valve 21 connected sequentially along the water flow direction on a pipeline. The third shut-off valve 18 is connected to the recycled water tank 6. The fourth shut-off valve 21 is connected to the backwashing inlet of the first-stage filter 12 via a first pipeline and to the backwashing inlet of the second-stage filter 13 via a second pipeline. The first and second pipelines are connected in parallel. The backwashing outlets of both the first-stage filter 12 and the second-stage filter 13 are connected to external discharge ports. The backwashing pump 19 uses water from the recycled water tank 6 to backwash the first-stage filter 12 and the second-stage filter 13. When the pipeline between the third shut-off valve 18 and the fourth shut-off valve 21, or any structural component installed on that pipeline, malfunctions or requires maintenance, the third shut-off valve 18 and the fourth shut-off valve 21 are closed to cut off that section of the pipeline for easy maintenance.

[0054] Preferably, a second pressure gauge 11 is provided between the backwash pump 19 and the second check valve 20, and the second pressure gauge 11 is used to monitor the water pressure in the pipeline.

[0055] The wastewater treatment system 1 also includes a first water meter 22, which is installed between the second-stage filter 13 and the recycled water tank 6. The first water meter 22 is used to detect the amount of water entering the recycled water tank 6.

[0056] The sewage treatment system 1 also includes a fifth shut-off valve 23 and a sixth shut-off valve 24. The fifth shut-off valve 23 is located upstream of the first water meter 22, and the sixth shut-off valve 24 is located downstream of the first water meter 22. When the pipe between the fifth shut-off valve 23 and the sixth shut-off valve 24 or the structural components installed on the pipe malfunction or need maintenance, the fifth shut-off valve 23 and the sixth shut-off valve 24 are closed to cut off the section of pipe for easy maintenance.

[0057] The wastewater treatment system 1 also includes a seventh shut-off valve 25, which is connected to the inlet of the fifth shut-off valve 23 and the outlet of the sixth shut-off valve 24. When the pipeline containing the first water meter 22 malfunctions, the seventh shut-off valve 25 is opened to ensure that the pipeline supplying water to the recycled water tank 6 remains open.

[0058] Preferably, an overflow pipe 61 is installed at the upper end of the recycled water tank 6, and the overflow pipe 61 is connected to an external drain outlet to prevent water in the tank from overflowing. For example, the external drain outlet is a floor drain.

[0059] Preferably, a first drain pipe 62 is installed at the bottom of the recycled water tank 6, and the first drain pipe 62 is connected to an external drain outlet. When the recycled water tank 6 needs to be repaired or cleaned, the water in the recycled water tank 6 is drained through the first drain pipe 62. Preferably, a first drain shut-off valve 63 is installed on the first drain pipe 62, and the first drain shut-off valve 63 is used to control the opening and closing of the first drain pipe 62.

[0060] A second level gauge 64, electrically connected to the control device 8, is installed on the recycled water tank 6. The second level gauge 64 is capable of continuously measuring the water level in the recycled water tank 6. Specifically, the second level gauge 64 is an ultrasonic level gauge electrically connected to the control device 8.

[0061] The second power assembly 200 includes an eighth shut-off valve 29, a third filter 30, a second water pump 31, a third check valve 32, and a ninth shut-off valve 33 connected sequentially along a pipeline. The eighth shut-off valve 29 is connected to the outlet of the recycled water tank 6 via a pipeline, and the ninth shut-off valve 33 is connected to the pressure stabilizing tank 28. In the event of a malfunction or need for maintenance of the pipeline between the eighth shut-off valve 29 and the ninth shut-off valve 33, or any structural component installed on that pipeline, the eighth shut-off valve 29 and the ninth shut-off valve 33 are closed to cut off that section of the pipeline for easier maintenance.

[0062] Preferably, a third pressure gauge 34 is provided between the eighth shut-off valve 29 and the third filter 30, between the third filter 30 and the second water pump 31, and between the third check valve 32 and the ninth shut-off valve 33. The third pressure gauge 34 is electrically connected to the control device 8 and is used to detect the pressure in the pipeline in which it is located and to provide real-time feedback to the control device 8.

[0063] Preferably, the third filter 30 is connected to the second water pump 31, and the third check valve 32 is connected to the second water pump 31 via a flexible connection 35.

[0064] Preferably, the third filter 30 is a Y-shaped filter.

[0065] Preferably, a second drain pipe 36 is connected to the bottom of the pressure stabilizing tank 28, and the second drain pipe 36 is connected to an external drain outlet. When the pressure stabilizing tank 28 needs to be repaired or cleaned, the water in the pressure stabilizing tank 28 is drained through the first drain pipe 62.

[0066] Preferably, a second drain stop valve 54 is installed on the second drain pipe 36, and the second drain stop valve 54 is used to control the opening and closing of the second drain pipe 36.

[0067] Preferably, a first pressure-stabilizing shut-off valve 55 is provided between the pressure stabilizing tank 28 and the ninth shut-off valve 33, and a second pressure-stabilizing shut-off valve 56 is provided between the pressure stabilizing tank 28 and the gas washing tank 9. When it is necessary to maintain the pipeline between the first pressure-stabilizing shut-off valve 55 and the second pressure-stabilizing shut-off valve 56, and the pressure stabilizing tank 28 installed on this section of pipeline, the first pressure-stabilizing shut-off valve 55 and the second pressure-stabilizing shut-off valve 56 are closed to facilitate maintenance.

[0068] Preferably, an ultraviolet lamp 37 is installed inside the pipeline between the second power assembly 200 and the pressure stabilizing tank 28 to sterilize the water. Specifically, an ultraviolet lamp 37 is installed between the ninth shut-off valve 33 and the pressure stabilizing tank 28.

[0069] Because the pipeline between the pressure stabilizing tank 28 and the air scrubbing tower 9 is relatively long, preferably, a tenth shut-off valve 38, a fourth check valve 39, and an eleventh shut-off valve 40 are sequentially installed along the water flow direction on the pipeline between the pressure stabilizing tank 28 and the air scrubbing tower 9. The fourth check valve 39 prevents water backflow. When the pipeline between the tenth shut-off valve 38 and the eleventh shut-off valve 40, or the structural components installed on this pipeline, malfunctions or requires maintenance, the tenth shut-off valve 38 and the eleventh shut-off valve 40 are closed to cut off that section of the pipeline, facilitating maintenance. Specifically, a tenth shut-off valve 38, a fourth check valve 39, and an eleventh shut-off valve 40 are sequentially installed along the water flow direction on the pipeline between the second pressure stabilizing shut-off valve 56 and the air scrubbing tower 9.

[0070] Preferably, a fourth pressure gauge 41 is also provided between the second pressure regulating shut-off valve 56 and the tenth shut-off valve 38.

[0071] Preferably, when the wastewater treatment system 1 supplies insufficient water to the recycled water tank 6, the wastewater reuse and conveying system further includes a tap water supply component electrically connected to the control component. The tap water supply component includes a twelfth shut-off valve 42, a second water meter 43, and a thirteenth shut-off valve 44 arranged sequentially along the water flow direction on the pipeline. The twelfth shut-off valve 42 is connected to the tap water supply, and the thirteenth shut-off valve 44 is connected to the recycled water tank 6.

[0072] When a fault occurs or a structural component installed on the pipeline between the twelfth shut-off valve 42 and the thirteenth shut-off valve 44 is required, the twelfth shut-off valve 42 and the thirteenth shut-off valve 44 are closed to cut off that section of the pipeline for maintenance.

[0073] Preferably, a fourteenth stop valve 45, a third water meter 46, and a fifteenth stop valve 47 are sequentially installed along the water flow on the pipeline between the thirteenth stop valve 44 and the recycled water tank 6, with the fifteenth stop valve 47 connected to the recycled water tank 6.

[0074] The greywater delivery system 2 also includes a parallel pipeline assembly, which consists of parallel pipelines and a sixteenth shut-off valve 48 installed on the parallel pipelines. One end of the parallel pipeline is connected to the inlet of the fourteenth shut-off valve 45, and the other end is connected to the outlet of the fifteenth shut-off valve 47. When a fault occurs in the pipeline between the fourteenth and fifteenth shut-off valves 45 or in the structural components installed on the pipelines, operation needs to be stopped, and the fourteenth and fifteenth shut-off valves 45 and 47 are closed. At this time, tap water enters the recycled water tank 6 through the twelfth shut-off valve 42, the second water meter 43, the thirteenth shut-off valve 44, and the sixteenth shut-off valve 48.

[0075] Preferably, when the water supply from the recycled water tank 6 to the air scrubbing tower 9 is insufficient, the greywater delivery system 2 also includes the original water supply pipeline assembly. The original water supply pipeline assembly is provided with a seventeenth shut-off valve 49, a fifth check valve 50 and an eighteenth shut-off valve 51 in sequence along the water flow direction. The seventeenth shut-off valve 49 is connected to the outlet of the original water supply pipeline and the eighteenth shut-off valve 51 is connected to the air scrubbing tower 9.

[0076] The greywater delivery system 2 also includes a cooling and return water assembly, which includes a return water pipe 52 and an electric control valve 53. One end of the return water pipe 52 is connected to the outlet of the ninth shut-off valve 33, and the other end is connected to the return water tank 6. The electric control valve 53 is electrically connected to the control device 8 and is used to control the opening and closing of the return water pipe 52. When the scrubbing tower 9 stops working and no longer needs to supply water to the scrubbing tower 9, the second water pump 31 continues to work. The control device 8 controls the electric control valve 53 to open, and the water pumped from the return water tank 6 flows back to the return water tank through the return water pipe 52. The scrubbing tower 9 stops working, and the second water pump 31 continues to work. The return water tank 6, the second water pump 31, and the return water pipe 52 form a return water passage to cool the second water pump 31 and ensure that the second water pump 31 works normally.

[0077] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating the present utility model, and are not intended to limit the implementation of the present utility model. Those skilled in the art can make other variations or modifications based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this utility model should be included within the protection scope of the claims of this utility model.

Claims

1. A wastewater reuse and conveying system, characterized in that, It includes a wastewater treatment system (1), a greywater delivery system (2), and a control device (8); The wastewater treatment system (1) includes a first power component (100), a first-stage filter (12) and a second-stage filter (13) connected sequentially along the water flow direction. The first power component (100) is connected to the wastewater storage tank (7), and the greywater after the second-stage filter (13) is connected to the recycled water tank (6). The greywater delivery system (2) includes a second power unit (200) and a pressure stabilizing tank (28) connected sequentially along the water flow direction. The second power unit (200) is connected to the outlet of the recycled water tank (6), and the pressure stabilizing tank (28) is connected to the air scrubbing tower (9). Both the wastewater treatment system (1) and the greywater delivery system (2) are electrically connected to the control device (8).

2. The wastewater reuse and conveying system according to claim 1, characterized in that, The first power assembly (100) includes two sets, and the two sets of the first power assembly (100) are arranged side by side.

3. The wastewater reuse and conveying system according to claim 1 or 2, characterized in that, The first power assembly (100) includes a first shut-off valve (14), a first water pump (15), a first check valve (16), and a second shut-off valve (17) connected sequentially along the water flow direction on the pipeline. The first shut-off valve (14) is connected to the outlet of the sewage storage tank (7), and the second shut-off valve (17) is connected to the first stage filter (12).

4. The wastewater reuse and conveying system according to claim 1 or 2, characterized in that, The wastewater treatment system (1) also includes a backwash pipe assembly (300), which includes a third shut-off valve (18), a backwash pump (19), a second check valve (20) and a fourth shut-off valve (21) connected sequentially along the water flow direction on the pipe. The third shut-off valve (18) is connected to the recycled water tank (6), the fourth shut-off valve (21) is connected to the backwash inlet of the first stage filter (12) via the first pipe, and the fourth shut-off valve (21) is connected to the backwash inlet of the second stage filter (13) via the second pipe. The first pipe and the second pipe are connected in parallel. The backwash outlet of the first stage filter (12) and the backwash outlet of the second stage filter (13) are both connected to an external discharge port.

5. The wastewater reuse and conveying system according to claim 1 or 2, characterized in that, The second power assembly (200) includes an eighth shut-off valve (29), a third filter (30), a second water pump (31), a third check valve (32), and a ninth shut-off valve (33) connected in sequence along the pipeline; The eighth shut-off valve (29) is connected to the outlet of the recycled water tank (6), and the ninth shut-off valve (33) is connected to the pressure stabilizing tank (28).

6. The wastewater reuse and conveying system according to claim 1 or 2, characterized in that, An ultraviolet lamp (37) is installed inside the pipe between the second power assembly (200) and the pressure tank (28).

7. The wastewater reuse and conveying system according to claim 1 or 2, characterized in that, The pipeline between the pressure stabilizing tank (28) and the gas scrubbing tower (9) is provided with a tenth shut-off valve (38), a fourth check valve (39) and an eleventh shut-off valve (40) in sequence along the water flow direction.

8. The wastewater reuse and conveying system according to claim 1 or 2, characterized in that, The wastewater reuse and conveying system also includes a tap water supply component electrically connected to the control component. The tap water supply component includes a twelfth shut-off valve (42), a second water meter (43), and a thirteenth shut-off valve (44) arranged sequentially along the water flow direction on the pipeline. The twelfth shut-off valve (42) is connected to the tap water supply, and the thirteenth shut-off valve (44) is connected to the recycled water tank (6).

9. The wastewater reuse and conveying system according to claim 8, characterized in that, Along the water flow on the pipeline between the thirteenth shut-off valve (44) and the recycled water tank (6), a fourteenth shut-off valve (45), a third water meter (46) and a fifteenth shut-off valve (47) are also installed in sequence, with the fifteenth shut-off valve (47) connected to the recycled water tank (6). The greywater delivery system (2) also includes a parallel pipeline assembly, which includes a parallel pipeline and a sixteenth shut-off valve (48) installed on the parallel pipeline. One end of the parallel pipeline is connected to the inlet of the fourteenth shut-off valve (45), and the other end is connected to the outlet of the fifteenth shut-off valve (47).

10. The wastewater reuse and conveying system according to claim 5, characterized in that, The greywater delivery system (2) also includes a cooling return water assembly, which includes a return water pipe (52) and an electric control valve (53). One end of the return water pipe (52) is connected to the outlet of the ninth shut-off valve (33), and the other end is connected to the greywater tank (6). The electric control valve (53) is electrically connected to the control device (8).

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