Energy-saving water supply system

Abstract

The present invention relates to the field of water supply technology, and specifically to an energy-saving water supply system, which is characterized by comprising a sewage collection pipe, a sewage treatment device, a water storage tank, a water supply pump and a water terminal connected in sequence, the sewage treatment device comprising a primary filter assembly, the primary filter assembly comprising a primary filter box, a primary filter grid conveying mechanism and a debris cleaning mechanism, a cover plate is provided at the upper end of the primary filter box, a first partition plate is fixedly provided in the primary filter box and the inner cavity is divided into a primary filter chamber and a collection chamber, a connecting port is provided at the upper part of the first partition plate, the primary filter grid conveying mechanism is arranged in the primary filter chamber and its discharge end passes through the connecting port and enters the collection chamber, and the debris cleaning mechanism is arranged at the discharge end of the primary filter grid conveying mechanism and is used to clean up the debris adhered to the primary filter grid conveying mechanism. In the primary filtration process of domestic sewage, the present invention does not need to clean the primary filter grid conveying mechanism, and is not easy to affect the overall treatment efficiency of domestic sewage, so as to better ensure the stability of subsequent water supply.

Description

Technical Field

[0001] The invention relates to the technical field of water supply, and in particular to an energy-saving water supply system. Background Art

[0002] Freshwater resources are the foundation for human survival. However, there is a serious shortage of freshwater resources in today's society. Therefore, energy-saving water supply is imperative. Since the drainage of kitchens, washbasins and washing machines cannot be reused, freshwater resources are wasted to a certain extent, which does not meet the current requirements of energy conservation and environmental protection. To solve this problem, the invention patent with application publication number CN111943416A provides an energy-saving water supply system and its working method. The energy-saving water supply system and its working method provided by the invention patent are filtered and sterilized for domestic sewage such as drainage of kitchens, washbasins and washing machines in turn for multiple times to achieve secondary utilization. However, in the energy-saving water supply system, it is pre-filtered through multiple filter nets. In the process of pre-filtering domestic sewage, since the kitchen drainage contains more debris, such as food residues, etc., it is easy to block the filter net, and the filter net needs to be cleaned manually and regularly, which is time-consuming and labor-intensive, and will have a certain impact on the overall treatment efficiency of domestic sewage, and will have a certain impact on the stability of subsequent water supply. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide an energy-saving water supply system which does not need to clean the primary filtration grid conveying mechanism during the primary filtration of domestic sewage and is not easy to affect the overall treatment efficiency of domestic sewage, so as to better ensure the stability of subsequent water supply.

[0004] In order to solve the above technical problems, the technical scheme adopted by the present invention is as follows: an energy-saving water supply system, comprising a sewage collecting pipe, a sewage treatment device, a water storage tank, a water supply pump and a water use terminal connected in sequence, the sewage treatment device comprising a primary filter assembly, the primary filter assembly comprising a primary filter box, a primary filter grid conveying mechanism and a debris cleaning mechanism, the primary filter box is provided with an upwardly open inner cavity, a cover plate is provided at the upper end of the primary filter box, a first partition plate is fixedly provided in the primary filter box and divides the inner cavity into a primary filter chamber and a collection chamber, a connecting port is provided at the upper part of the first partition plate, the primary filter grid conveying mechanism is provided in the primary filter chamber and its discharge end passes through the connecting port and enters the collection chamber, the debris cleaning mechanism is provided at the discharge end of the primary filter grid conveying mechanism and is used to clean up debris adhering to the primary filter grid conveying mechanism, a sewage inlet is provided at the upper end of the cover plate, and a sewage outlet is provided at the bottom end of the primary filter box.

[0005] Furthermore, the primary filter grid conveying mechanism includes a grid conveyor belt, a first rotating drive member, an active roller, a first driven roller and multiple rollers. A number of primary filter mesh holes are evenly distributed on the grid conveyor belt. The active roller, the first driven roller and the rollers can be rotatably installed on the primary filter box. The first rotating drive member is arranged on the outside of the primary filter box and is used to drive the active roller to rotate. The grid conveyor belt is sleeved on the active roller, the first driven roller and multiple rollers.

[0006] Furthermore, a primary filtration section and a drying section are sequentially arranged on the grid conveyor belt along its conveying direction, the sewage inlet is arranged directly above the primary filtration section, and a hot air drying mechanism for drying debris on the drying section is arranged at the upper end of the cover plate directly above the drying section.

[0007] Furthermore, the primary filter grid conveying mechanism also includes a second driven roller, which is rotatably installed on the primary filter box, and the second driven roller is sleeved in the grid conveyor belt and is located between the active roller and the first driven roller. A primary filter section is formed on the grid conveyor belt between the first driven roller and the second driven roller, which is inclined upward toward one side of the active roller, and a horizontally arranged drying section is formed on the grid conveyor belt between the second driven roller and the active roller.

[0008] Furthermore, a material balancing plate, a rolling cylinder and a plurality of dispersion plates are installed in sequence and at intervals in the primary filter box just above the drying section along the conveying direction of the mesh conveyor belt. The rolling cylinder is rotatably connected to the primary filter box, and a material balancing gap is provided between the material balancing plate and the mesh conveyor belt. The lower end edge of the material balancing plate is serrated, and a plurality of dispersion fingers are fixedly provided at the lower end of the dispersion plate along its length direction. The lower ends of the dispersion fingers abut against the upper end surface of the mesh conveyor belt, and the dispersion fingers on the plurality of dispersion plates are staggered with each other. A second rotating driving member for driving the rolling cylinder to rotate is provided on the outer side of the primary filter box, and a rolling bottom plate abutting against the upper end surface of the mesh conveyor belt is provided just below the rolling cylinder, and a rolling gap is provided between the rolling cylinder and the rolling bottom plate, and the rolling bottom plate is installed on the primary filter box.

[0009] Furthermore, the hot air drying mechanism includes an air inlet fan, a heater, and a hot air hood. The hot air hood is installed at the upper end of the cover plate. A hot air cavity open downward is provided in the hot air hood. A hot air inlet is provided on one side of the hot air hood. An air inlet fan and a heater are installed on the hot air hood in sequence along the air inlet direction at the hot air inlet. A plurality of hot air outlets communicating with the hot air cavity are evenly distributed on the surface of the cover plate just above the drying section. An exhaust duct communicating with the collecting cavity is fixedly provided on one side of the upper end of the cover plate. An exhaust port is provided on the top of the exhaust duct. An exhaust fan is installed at the exhaust port. A second partition plate is fixedly provided in the primary filter box just above the primary filter section and the drying section. A conveying port for passing debris is provided between the second partition plate and the mesh conveyor belt.

[0010] Furthermore, multiple air holes communicating with the collecting chamber are provided on multiple outer surfaces of the primary filter box, a detachable collecting mesh frame is provided in the collecting chamber, an air passage is provided between the outer peripheral surface of the collecting mesh frame and the inner peripheral surface of the collecting chamber, and a taking port is provided on the outer surface of one side of the primary filter box, and an openable sealing plate is installed at the taking port.

[0011] Furthermore, the debris cleaning mechanism includes a scraper plate, a cleaning brush and a third rotating drive component. The scraper plate and the cleaning brush are arranged in sequence along the conveying direction of the grid conveyor belt. The scraper plate is installed on the primary filter box and abuts against the outer surface of the grid conveyor belt. The cleaning brush is rotatably installed on the primary filter box and abuts against the outer surface of the grid conveyor belt. The third rotating drive component is arranged on the outside of the primary filter box and is used to drive the cleaning brush to rotate.

[0012] Furthermore, the debris cleaning mechanism also includes a blowing hood, a central shaft and a blower, the central shaft is fixedly mounted on the primary filter box, a cavity is provided in the active roller, a plurality of through holes communicating with the cavity are evenly distributed on the outer circumference of the active roller, the active roller is sleeved on the central shaft, one end of the active roller is rotatably connected to the central shaft through a first bearing, a rotating sleeve is fixedly mounted on the other end of the active roller, the rotating sleeve is sleeved on the central shaft and its inner side is rotatably connected to the central shaft through a second bearing, the outer side of the rotating sleeve is rotatably connected to the primary filter box through a third bearing, the blowing hood is fixedly mounted on the central shaft and is located in the cavity and corresponds to the cleaning brush, a blowing cavity open to the cleaning brush is provided in the blowing hood, a blowing channel running through one end thereof is provided in the central shaft, the blower is fixedly mounted on the outer side of the primary filter box and is connected to one end of the central shaft through a blowing duct and is communicated with the blowing channel, at least one blowing slot communicating with the blowing channel is provided on the outer circumference of the central shaft, and at least one connecting slot for connecting the blowing slot and the blowing cavity is provided on the blowing hood.

[0013] Furthermore, a primary filter buffer plate located between the primary filter section and the sewage inlet is installed in the primary filter box, a number of primary filter buffer holes are evenly distributed on the primary filter buffer plate, the primary filter buffer plate is tilted downward and toward the drying section, and a water collecting bucket located in the grid conveyor belt is installed in the primary filter box, the two ends of the water collecting bucket extend to near the active roller and the first driven roller respectively, the water collecting bucket is connected to the bottom of the primary filter chamber through a water pipe, and the water pipe is fixed on the outer surface of the primary filter box.

[0014] From the above description, it can be seen that the energy-saving water supply system provided by the present invention has the following beneficial effects: when domestic sewage enters the primary filter chamber of the primary filter box from the sewage inlet, the primary filter grid conveying mechanism can play a corresponding primary filtering effect on the domestic sewage. At the same time, the primary filter grid conveying mechanism can promptly convey the filtered debris to the collection chamber to avoid the accumulation of debris on the primary filter grid conveying mechanism and affect the filtering effect of the primary filter grid conveying mechanism or blockage. At the same time, with the setting of the debris cleaning mechanism, the debris adhering to the primary filter grid conveying mechanism can be further cleaned in time to better ensure the cleanliness and smoothness of the primary filter grid conveying mechanism, and ensure that the primary filter grid conveying mechanism always maintains a good filtering effect. Therefore, in the primary filtration process of domestic sewage, there is no need to manually clean the primary filter grid conveying mechanism regularly, which is more time-saving and labor-saving, and is not easy to affect the overall treatment efficiency of domestic sewage, so as to better ensure the stability of subsequent water supply. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural schematic diagram of the energy-saving water supply system of the present invention.

[0016] Figure 2 It is a schematic diagram of the structure of the primary filter component.

[0017] Figure 3 for Figure 2 A local enlarged schematic diagram of point A in the middle.

[0018] Figure 4 for Figure 2 A local enlarged schematic diagram of point B in the middle.

[0019] Figure 5 for Figure 2 A partial enlarged schematic diagram of point C in the middle.

[0020] Figure 6 for Figure 2 Top view of the .

[0021] Figure 7 It is a structural schematic diagram of the active roller.

[0022] Figure 8 for Figure 7 A local enlarged schematic diagram of point D in the middle.

[0023] Fig. 9 It is a structural schematic diagram of the material balancing plate.

[0024] Fig.10 Schematic diagram of the structure of the dispersion plate.

[0025] In the figure: 1-sewage collection pipe; 2-sewage treatment device; 3-water storage tank; 4-water supply pump; 5-water terminal; 6-primary filter assembly; 61-primary filter box; 611-first partition plate; 612-primary filter chamber; 613-collection chamber; 6131-air permeability channel; 614-connecting port; 615-sewage outlet; 616-second partition plate; 617-delivery port; 62-primary filter grid conveying mechanism; 621-grid conveyor belt; 6211-primary filter section; 6212-drying section; 622-first rotating drive member; 623-active roller; 6231-cavity; 6232-rotating sleeve; 624-first driven roller; 625-supporting roller; 626-second driven roller; 63-debris cleaning mechanism; 631-scraper plate; 632-cleaning brush; 633-third rotating driving member; 634-blowing hood; 6341-blowing cavity; 6342-connecting slot; 635-central axis; 6351-blowing channel; 6352-blowing slot; 636-blower; 64-cover plate; 641-sewage inlet; 642-hot air outlet; 643-exhaust pipe; 6431-exhaust fan; 65-hot air drying mechanism; 651-air inlet; 652-heater; 653-hot air hood; 6531-hot air cavity; 6532-hot air inlet; 661-equalizing plate; 662-rolling cylinder; 663-dispersing plate; 6631-dispersing finger rod; 664-second rotating driving member; 665-rolling bottom plate; 67-collecting net frame; 68-primary filter buffer plate; 691-water collecting bucket; 692-water pipe. DETAILED DESCRIPTION

[0026] The present invention is further described below through specific implementation modes.

[0027] like Figures 1 to 10 As shown, the energy-saving water supply system described in the present invention includes a sewage collection pipe 1, a sewage treatment device 2, a water storage tank 3, a water supply pump 4 and a water terminal 5 which are connected in sequence. The sewage treatment device 2 includes a primary filtration component 6, and the water terminal 5 is a flushing water terminal or a greening water terminal. In addition, the sewage treatment device 2 also includes an oil removal component, a sterilization and disinfection component and a fine filtration component to further remove oil, sterilize and disinfect and finely filter the domestic sewage after the primary filtration to achieve the water quality standard for greening irrigation and flushing toilets. In addition, the oil removal component, the sterilization and disinfection component and the fine filtration component can all adopt the structure in the prior art, so they will not be described in detail here.

[0028] The primary filter assembly 6 includes a primary filter box 61, a primary filter grid conveying mechanism 62 and a debris cleaning mechanism 63. The primary filter box 61 is provided with an inner cavity open upward, and a cover plate 64 is provided at the upper end of the primary filter box 61. A first partition plate 611 is fixedly provided in the primary filter box 61 and divides the inner cavity into a primary filter chamber 612 and a collection chamber 613. A connecting port 614 is provided at the upper part of the first partition plate 611. The primary filter grid conveying mechanism 62 is provided in the primary filter chamber 612 and its discharge end passes through the connecting port 614 and enters the collection chamber 613. The debris cleaning mechanism 63 is provided at the discharge end of the primary filter grid conveying mechanism 62 and is used to clean up debris adhered to the primary filter grid conveying mechanism 62. A sewage inlet 641 is provided at the upper end of the cover plate 64, and a sewage outlet 615 is provided at the bottom end of the primary filter box 61.

[0029] When domestic sewage enters the primary filter chamber 612 of the primary filter box 61 from the sewage inlet 641, the primary filter grid conveying mechanism 62 can play a corresponding primary filtering effect on the domestic sewage. At the same time, the primary filter grid conveying mechanism 62 can promptly convey the filtered debris to the collecting chamber 613 to avoid the accumulation of debris on the primary filter grid conveying mechanism 62 and affecting the filtering effect of the primary filter grid conveying mechanism 62 or clogging. At the same time, with the setting of the debris cleaning mechanism 63, the debris adhering to the primary filter grid conveying mechanism 62 can be further cleaned in time to better ensure the cleanliness and smoothness of the primary filter grid conveying mechanism 62, and ensure that the primary filter grid conveying mechanism 62 always maintains a good filtering effect. Therefore, in the primary filtering process of domestic sewage, there is no need to manually clean the primary filter grid conveying mechanism 62 regularly, which is more time-saving and labor-saving, and is not easy to affect the overall treatment efficiency of domestic sewage, so as to better ensure the stability of subsequent water supply.

[0030] In addition, in other embodiments, a shredder may be installed at the sewage inlet 641 to perform preliminary shredding of debris in the domestic sewage, and then discharge the domestic sewage together with the shredded debris from the sewage inlet 641 into the primary filter chamber 612. Accordingly, the shredder may adopt a structure in the prior art, such as a double-axis shredder, so it will not be elaborated here.

[0031] The primary filter grid conveying mechanism 62 includes a grid conveyor belt 621, a first rotating driving member 622, an active roller 623, a first driven roller 624 and a plurality of rollers 625. The grid conveyor belt 621 is evenly provided with a plurality of primary filter mesh holes. The active roller 623, the first driven roller 624 and the rollers 625 are rotatably installed on the primary filter box 61. The first rotating driving member 622 is arranged on the outer side of the primary filter box 61 and is used to drive the active roller 623 to rotate. The grid conveyor belt 621 is sleeved on the active roller 623, the first driven roller 624 and the plurality of rollers 625. As a result, By driving the active roller 623 to rotate through the first rotating driving member 622, the grid conveyor belt 621 can be driven to rotate synchronously, so that the debris on the grid conveyor belt 621 can be timely transported from below the sewage inlet 641 to the collection chamber 613, effectively ensuring the filtering effect of the grid conveyor belt 621 in the area directly below the sewage inlet 641. In actual use, the grid conveyor belt 621 can be rotated at a lower speed. In addition, the multiple rollers 625 can well support the grid conveyor belt 621 to better ensure the transportation of debris on the grid conveyor belt 621.

[0032] The first rotating driving member 622 includes a first reduction motor, a first motor seat and a first transmission member. The first reduction motor is fixedly mounted on the first motor seat. The first motor seat is fixedly mounted on the outside of the primary filter box 61. The first reduction motor is connected to one end of the active roller 623 through the first transmission member so as to drive the active roller 623 to rotate, thereby allowing the grid conveyor belt 621 to operate. Correspondingly, the first transmission member is a coupling, a belt drive or a gear drive.

[0033] In addition, the mesh conveyor belt 621 is provided with a primary filter section 6211 and a drying section 6212 in sequence along its conveying direction, the sewage inlet 641 is provided directly above the primary filter section 6211, and the upper end of the cover plate 64 is provided directly above the drying section 6212 with a hot air drying mechanism 65 for hot air drying the debris on the drying section 6212. In this way, after the domestic sewage falls from the sewage inlet 641, it can first be filtered at the primary filter section 6211, and the debris can be left on the surface of the mesh conveyor belt 621, and as the mesh conveyor belt 621 rotates, the debris can be gradually transported to the drying section 6212, and at the same time, the hot air The drying mechanism 65 is set up. At this time, the hot air drying mechanism 65 can play a certain hot air drying role on the debris on the drying section 6212 to reduce the humidity of the debris and improve the dryness, which is beneficial to reduce the adhesion of the debris, and is also beneficial to the subsequent debris cleaning mechanism 63 to smoothly clean the debris on the grid conveyor belt 621. It is also beneficial to reduce the decay rate of the debris, reduce the generation of odor, and extend the stacking time of the debris in the collection chamber 613, so as to better facilitate people to regularly clean the debris in the collection chamber 613. In addition, the length of the drying section 6212 and the rotation speed of the grid conveyor belt 621 can be set according to actual needs.

[0034] In addition, the primary filter grid conveying mechanism 62 also includes a second driven roller 626, which is rotatably installed on the primary filter box 61, and the second driven roller 626 is sleeved in the grid conveyor belt 621 and is located between the active roller 623 and the first driven roller 624. The primary filter section 6211 is formed on the grid conveyor belt 621 between the first driven roller 624 and the second driven roller 626 and is arranged to face the active roller 623 and tilted upward. The grid conveyor belt 621 is formed between the second driven roller 626 and the active roller 623 and is horizontally arranged. The drying section 6212 is thereby made higher than the primary filter section 6211. In this way, when domestic sewage enters from the sewage inlet 641 and falls into the primary filter section 6211, no part of the domestic sewage will overflow into the drying section 6212, so as to avoid further increasing the humidity of debris on the drying section 6212.

[0035] In addition, a material balancing plate 661, a rolling cylinder 662 and a plurality of dispersion plates 663 are installed in the primary filter box 61 in sequence and at intervals along the conveying direction of the mesh conveyor belt 621, just above the drying section 6212. The rolling cylinder 662 is rotatably connected to the primary filter box 61. A material balancing gap is provided between the material balancing plate 661 and the mesh conveyor belt 621. The lower end edge of the material balancing plate 661 is serrated. Therefore, when the mesh conveyor belt 621 is conveying and transferring the filtered debris, the material balancing plate 661 can have a corresponding material leveling effect on the debris, thereby better ensuring the consistency and uniformity of the thickness of the debris on the mesh conveyor belt 621, which is beneficial to improving the uniformity and sufficiency of the hot air drying of the debris. The outer side of the primary filter box 61 is provided with a second rotating driving member 664 for driving the rolling cylinder 662 to rotate. A rolling bottom plate 665 abutting against the upper end surface of the mesh conveyor belt 621 is provided directly below the rolling cylinder 662. A rolling gap is provided between the rolling cylinder 662 and the rolling bottom plate 665. The rolling bottom plate 665 is installed on the primary filter box 61, and the rolling cylinder 662 is driven by the second rotating driving member 664 to rotate, and can play a certain rolling role on the debris on the grid conveyor belt 621, and initially squeeze out part of the water in the debris to reduce the moisture content of the debris. At the same time, through the coordinated use of the rolling bottom plate 665, it can play a certain rolling support role and shield the corresponding position on the grid conveyor belt 621 to prevent some debris from being rolled. Entering the primary filter mesh, a plurality of dispersing fingers 6631 are fixedly provided at the lower end of the dispersing plate 663 along its length direction, and the lower ends of the dispersing fingers 6631 are in contact with the upper end surface of the mesh conveyor belt 621, and the dispersing fingers 6631 on the plurality of dispersing plates 663 are staggered with each other. Preferably, the number of the dispersing plates 663 is 2-4, and the dispersing fingers 6631 of the plurality of dispersing plates 663 can redisperse the debris after the initial rolling, so as to ensure the subsequent hot air drying effect.

[0036] The second rotating driving member 664 includes a second reduction motor, a second motor seat and a second transmission member. The second reduction motor is fixedly mounted on the second motor seat. The second motor seat is fixedly mounted on the outside of the primary filter box 61. The second reduction motor is connected to one end of the rolling cylinder 662 through the second transmission member to drive the rolling cylinder 662 to rotate. Correspondingly, the second transmission member is a coupling, a belt drive or a gear drive.

[0037] The hot air drying mechanism 65 includes an air inlet 651, a heater 652, and a hot air hood 653. The hot air hood 653 is installed on the upper end of the cover plate 64. A hot air cavity 6531 open downward is provided in the hot air hood 653. A hot air inlet 6532 is provided on one side of the hot air hood 653. The air inlet 651 and the heater 652 are sequentially installed on the hot air hood 653 at the hot air inlet 6532 along the air inlet direction. A plurality of hot air outlets 642 communicating with the hot air cavity 6531 are evenly distributed on the surface of the cover plate 64 just above the drying section 6212. The heater 652 is an electric heating wire or an electric heating rod. 51 can inhale external air and blow it into the hot air chamber 6531. During the blowing process, the heater 652 can heat the incoming air to form hot air. In this way, the hot air in the hot air chamber 6531 will slowly dissipate to the top of the drying section 6212 in the primary filter chamber 612 through the hot air outlet 642, thereby performing hot air drying on the debris filtered out from the drying section 6212 to further reduce the humidity of the debris and improve the dryness. In addition, the hot air chamber 6531 and the multiple hot air outlets 642 can also play a certain transitional role to avoid the hot air from being blown directly into the primary filter chamber 612 with a higher pressure.

[0038] In addition, an exhaust pipe 643 communicating with the collecting chamber 613 is fixedly provided on one side of the upper end of the cover plate 64, and an exhaust port is provided at the top of the exhaust pipe 643, and an exhaust fan 6431 is installed at the exhaust port. Accordingly, the number of the exhaust fans 6431 can be set according to actual needs. Through the setting of the exhaust fans 6431, it is convenient to quickly discharge the moisture and odor in the primary filter chamber 612 and the collecting chamber 613. A second partition plate 616 is fixedly provided in the primary filter box 61 just above the primary filter section 6211 and the drying section 6212, and a conveying port 617 for the passage of the debris is provided between the second partition plate 616 and the grid conveyor belt 621. The blocking effect of the second partition plate 616 can prevent the hot air blown in from the top of the drying section 6212 from quickly drifting to the side of the primary filter section 6211.

[0039] In addition, multiple air holes communicating with the collection chamber 613 are provided on multiple outer surfaces of the primary filter box 61, and a detachable collection mesh frame 67 is provided in the collection chamber 613. An air permeable channel 6131 is provided between the outer peripheral surface of the collection mesh frame 67 and the inner peripheral surface of the collection chamber 613. In this way, the exhaust effect generated by the exhaust fan 6431 can generate a certain negative pressure effect in the collection chamber 613, so that fresh air from the outside can better enter the collection chamber 613 through the air holes, and can better ensure the air circulation in the collection chamber 613, so as to further reduce the odor in the collection chamber 613. A taking port is provided on the outer surface of one side of the primary filter box 61, and an openable sealing plate is installed at the taking port, so as to facilitate regular cleaning of debris in the collection mesh frame 67 from the taking port by opening the sealing plate.

[0040] The debris cleaning mechanism 63 includes a scraper plate 631, a cleaning brush 632 and a third rotating driving member 633. The scraper plate 631 and the cleaning brush 632 are sequentially arranged along the conveying direction of the mesh conveyor belt 621. The scraper plate 631 is installed on the primary filter box 61 and abuts against the outer surface of the mesh conveyor belt 621, thereby scraping the debris adhered to the outer surface of the mesh conveyor belt 621. The cleaning brush 632 is rotatably installed on the primary filter box 61 and abuts against the mesh conveyor belt 621. The outer surface of the grid conveyor belt 621 is abutted, the third rotating drive member 633 is arranged on the outside of the primary filter box 61 and is used to drive the cleaning brush 632 to rotate, the cleaning brush 632 includes a cleaning shaft, and a plurality of bristles are evenly distributed on the outer peripheral surface of the cleaning shaft. Therefore, during the rotation of the cleaning brush 632, the plurality of bristles on the cleaning brush 632 can play a corresponding cleaning role on the debris adhered to the primary filter mesh of the grid conveyor belt 621, so as to reduce the residue of debris on the grid conveyor belt 621.

[0041] The third rotating driving member 633 includes a third reduction motor, a third motor seat and a third transmission member. The third reduction motor is fixedly mounted on the third motor seat. The third motor seat is fixedly mounted on the outside of the primary filter box 61. The third reduction motor is connected to one end of the cleaning brush 632 through the third transmission member so as to drive the cleaning brush 632 to rotate. Correspondingly, the third transmission member is a coupling, a belt drive or a gear drive.

[0042] In addition, the debris cleaning mechanism 63 also includes a blow hood 634, a central shaft 635 and a blower 636. The central shaft 635 is fixedly installed on the primary filter box 61. A cavity 6231 is provided in the active roller 623. A plurality of through holes communicating with the cavity 6231 are evenly distributed on the outer circumference of the active roller 623. The active roller 623 is sleeved on the central shaft 635. One end of the active roller 623 is rotatably connected to the central shaft 635 through a first bearing. A rotating sleeve 6232 is fixedly installed on the other end of the active roller 623, that is, the first rotating drive The first rotating driving member 622 is connected to the rotating sleeve 6232 in a transmission manner, so as to realize the transmission connection between the first rotating driving member 622 and the active roller 623. The rotating sleeve 6232 is sleeved on the central shaft 635 and its inner side is rotationally connected to the central shaft 635 through a second bearing. The outer side of the rotating sleeve 6232 is rotationally connected to the primary filter box 61 through a third bearing. The blowing hood 634 is fixedly mounted on the central shaft 635 and is located in the cavity 6231 and corresponds to the cleaning brush 632. The blowing hood 634 is provided with a blowing cavity open to the cleaning brush 632. 6341, the central shaft 635 is provided with a blowing channel 6351 penetrating one end thereof, the hair dryer 636 is fixedly installed on the outside of the primary filter box 61 and is connected to one end of the central shaft 635 through a blowing duct and is communicated with the blowing channel 6351, at least one blowing slot 6352 communicating with the blowing channel 6351 is provided on the outer circumference of the central shaft 635, and at least one connecting slot 6342 for connecting the blowing slot 6352 and the blowing cavity 6341 is provided on the blowing cover 634, thereby, the wind blown out by the hair dryer 636 can be sequentially The air enters the blowing chamber 6341 through the blowing duct, the blowing channel 6351, the blowing slot 6352, and the connecting slot 6342, and is blown out from the through hole on the outer peripheral surface of the active roller 623, and always keeps blowing in the direction of the cleaning brush 632. At the same time, with the cleaning cooperation of the cleaning brush 632, the debris adhered to the primary filter mesh of the mesh conveyor belt 621 can be better cleaned and blown off, thereby better ensuring the cleanliness and smoothness of the mesh conveyor belt 621, and the mesh conveyor belt 621 always maintains a good filtering effect.

[0043] Correspondingly, the active roller 623 includes an annular cylinder and two end plates, the two end plates are fixedly installed on the left and right ends of the annular cylinder respectively, the annular cylinder and the two end plates together form the cavity 6231, and a plurality of through holes are provided on the annular cylinder.

[0044] In addition, a primary filter buffer plate 68 located between the primary filter section 6211 and the sewage inlet 641 is installed in the primary filter box 61, and a plurality of primary filter buffer holes are evenly distributed on the primary filter buffer plate 68. The primary filter buffer plate 68 is tilted downward and toward the drying section 6212. Through the setting of the primary filter buffer plate 68, a corresponding buffering effect can be played on the falling domestic sewage to avoid a large falling impact on the grid conveyor belt 621. A water collecting bucket 691 located in the grid conveyor belt 621 is installed in the primary filter box 61, and the two ends of the water collecting bucket 691 extend to the vicinity of the active roller 623 and the drying roller 623, respectively. At the first driven roller 624, the water collecting bucket 691 is connected to the bottom of the primary filter chamber 612 through a water pipe 692, and the water pipe 692 is fixed on the outer surface of the primary filter box 61. As a result, after the domestic sewage is filtered through the upper end of the mesh conveyor belt 621, it can directly flow into the bottom of the primary filter chamber 612 through the water collecting bucket 691 and the water pipe 692, and will not be filtered again through the lower end of the mesh conveyor belt 621, which effectively prevents some fine debris from remaining and accumulating on the inner side of the mesh conveyor belt 621 to cause jamming, thereby ensuring the smooth operation of the mesh conveyor belt 621.

[0045] The above are only some specific implementation methods of the present invention, but the design concept of the present invention is not limited thereto. Any non-substantial changes to the present invention using this concept shall be deemed as an infringement of the protection scope of the present invention.

Claims

1. An energy-saving water supply system, comprising a sewage collection pipe, a sewage treatment device, a water storage tank, a water supply pump and a water terminal connected in sequence, wherein the sewage treatment device comprises a primary filter assembly, characterized in that: The primary filter assembly comprises a primary filter box, a primary filter grid conveying mechanism and a debris cleaning mechanism, wherein the primary filter box is provided with an inner cavity open upward, a cover plate is provided at the upper end of the primary filter box, a first partition plate is fixedly provided in the primary filter box and divides the inner cavity into a primary filter cavity and a collection cavity, a connecting port is provided at the upper portion of the first partition plate, the primary filter grid conveying mechanism is provided in the primary filter cavity and its discharge end passes through the connecting port and enters the collection cavity, the debris cleaning mechanism is provided at the discharge end of the primary filter grid conveying mechanism and is used to remove debris adhering to the primary filter grid conveying mechanism. The upper end of the cover plate is provided with a sewage inlet, a shredder is installed at the sewage inlet, a sewage outlet is provided at the bottom end of the primary filter box, the primary filter grid conveying mechanism comprises a grid conveyor belt, a first rotating driving member, an active roller, a first driven roller and a plurality of rollers, a plurality of primary filter mesh holes are evenly distributed on the grid conveyor belt, the active roller, the first driven roller and the rollers are rotatably installed on the primary filter box, the first rotating driving member is arranged outside the primary filter box and is used to drive the active roller to rotate, the grid conveyor belt is sleeved on the primary filter box, The active roller, the first driven roller and the plurality of the supporting rollers, the mesh conveyor belt is provided with a primary filter section and a drying section in sequence along its conveying direction, the sewage inlet is provided just above the primary filter section, the upper end of the cover plate is provided with a hot air drying mechanism for hot air drying the debris on the drying section, and a material balancing plate, a rolling cylinder and a plurality of dispersion plates are installed in the primary filter box just above the drying section and at intervals along the conveying direction of the mesh conveyor belt, the rolling cylinder is rotatably connected to the primary filter box, the material balancing plate is connected to the mesh conveyor belt A material balancing gap is provided between the conveying belts, the lower end edge of the material balancing plate is serrated, a second rotating driving member for driving the rolling cylinder to rotate is provided on the outer side of the primary filter box, a rolling bottom plate abutting against the upper end surface of the grid conveyor belt is provided directly below the rolling cylinder, a rolling gap is provided between the rolling cylinder and the rolling bottom plate, the rolling bottom plate is installed on the primary filter box, a plurality of dispersion fingers are fixedly provided at the lower end of the dispersion plate along its length direction, the lower ends of the dispersion fingers abut against the upper end surface of the grid conveyor belt, and the dispersion fingers on the plurality of dispersion plates are staggered with each other.

2. The energy-saving water supply system according to claim 1, characterized in that: The primary filter grid conveying mechanism also includes a second driven roller, which is rotatably installed on the primary filter box, and the second driven roller is sleeved in the grid conveyor belt and located between the active roller and the first driven roller. The primary filter section is formed on the grid conveyor belt between the first driven roller and the second driven roller, and is inclined upward to one side of the active roller. The drying section is horizontally formed on the grid conveyor belt between the second driven roller and the active roller.

3. The energy-saving water supply system according to claim 1, characterized in that: The hot air drying mechanism comprises an air inlet fan, a heater and a hot air hood, the hot air hood is installed at the upper end of the cover plate, a hot air cavity open downwards is provided in the hot air hood, a hot air inlet is provided on one side of the hot air hood, the air inlet fan and the heater are sequentially installed on the hot air hood at the hot air inlet along the air inlet direction, a plurality of hot air outlets connected with the hot air cavity are evenly distributed on the surface of the cover plate just above the drying section, an exhaust pipe connected with the collecting cavity is fixedly provided on one side of the upper end of the cover plate, an exhaust port is provided on the top of the exhaust pipe, an exhaust fan is installed at the exhaust port, a second partition plate is fixedly provided in the primary filter box just above between the primary filter section and the drying section, a conveying port for passing the debris is provided between the second partition plate and the mesh conveyor belt.

4. The energy-saving water supply system according to claim 3, characterized in that: Multiple air holes communicating with the collecting chamber are provided on multiple outer surfaces of the primary filter box, a detachable collecting net frame is provided in the collecting chamber, an air passage is provided between the outer peripheral surface of the collecting net frame and the inner peripheral surface of the collecting chamber, a taking port is provided on the outer surface of one side of the primary filter box, and an openable sealing plate is installed at the taking port.

5. The energy-saving water supply system according to claim 1, characterized in that: The debris cleaning mechanism includes a scraper plate, a cleaning brush and a third rotating drive member, the scraper plate and the cleaning brush are arranged in sequence along the conveying direction of the grid conveyor belt, the scraper plate is installed on the primary filter box and abuts against the outer surface of the grid conveyor belt, the cleaning brush is rotatably installed on the primary filter box and abuts against the outer surface of the grid conveyor belt, and the third rotating drive member is arranged on the outside of the primary filter box and is used to drive the cleaning brush to rotate.

6. The energy-saving water supply system according to claim 5, characterized in that: The debris cleaning mechanism also includes a blow hood, a central shaft and a blower, the central shaft is fixedly mounted on the primary filter box, a cavity is arranged in the active roller, a plurality of through holes communicating with the cavity are evenly distributed on the outer circumference of the active roller, the active roller is sleeved on the central shaft, one end of the active roller is rotatably connected to the central shaft through a first bearing, a rotating sleeve is fixedly mounted on the other end of the active roller, the rotating sleeve is sleeved on the central shaft and the inner side thereof is rotatably connected to the central shaft through a second bearing, and the outer side of the rotating sleeve is connected to the primary filter through a third bearing. The box is rotatably connected, the blowing hood is fixedly mounted on the central axis and is located in the cavity and corresponds to the cleaning brush, the blowing hood is provided with a blowing cavity open to the cleaning brush, the central axis is provided with a blowing channel running through one end thereof, the hair dryer is fixedly mounted on the outside of the primary filter box and is connected to one end of the central axis through a blowing duct and is communicated with the blowing channel, at least one blowing slot communicated with the blowing channel is provided on the outer circumferential surface of the central axis, and at least one connecting slot for connecting the blowing slot and the blowing cavity is provided on the blowing hood.

7. The energy-saving water supply system according to claim 1, characterized in that: A primary filter buffer plate located between the primary filter section and the sewage inlet is installed in the primary filter box, a plurality of primary filter buffer holes are evenly distributed on the primary filter buffer plate, and the primary filter buffer plate is tilted downward and toward the drying section. A water collecting bucket located in the grid conveyor belt is installed in the primary filter box, and both ends of the water collecting bucket extend to near the active roller and the first driven roller respectively. The water collecting bucket is connected to the bottom of the primary filter chamber through a water pipe, and the water pipe is fixed on the outer surface of the primary filter box.

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