Rainwater resource collecting, purifying and self-flushing integrated device and method for multi-story building

Abstract

The invention belongs to the technical field of green buildings, and particularly relates to a multi-story building rainwater resource collecting, purifying and self-flushing integrated device and method.The multi-story building rainwater resource collecting, purifying and self-flushing integrated device and method comprise a top rainwater collecting mechanism, a middle rainwater collecting mechanism and a bottom rainwater collecting mechanism; the top rainwater collecting mechanism is arranged on the top of the multi-story building, the middle rainwater collecting mechanism is arranged on the outward side of the middle of the multi-story building and annularly surrounds the building, and the bottom rainwater collecting mechanism is arranged on the bottom layer of the multi-story building; according to the rainwater resource collecting, purifying and self-flushing integrated device and method for the multi-story building, integrated rainwater resource collection from top to bottom can be carried out, meanwhile, unified collection and purification are carried out, and the effect that rainwater can be recycled to achieve cleaning is achieved.

Description

Technical Field

[0001] The present invention belongs to the technical field of green buildings, and in particular relates to an integrated device and method for collecting, purifying and self-flushing rainwater resources in multi-story buildings. Background Art

[0002] Global water shortage and water pollution issues are related to food security, ecological security, environmental security, economic security, and even life safety. They are major issues that need to be urgently addressed.

[0003] In recent years, affected by global climate change, rainstorm and flood disasters have occurred frequently around the world. Cities have suffered from heavy rainstorms many times, which have also caused very serious waterlogging disasters. To solve urban waterlogging, it is necessary to drain water and store water. Making full use of infiltration and storage measures to digest rainfall on the spot is the most effective way to control urban waterlogging. Rainwater collection and utilization can not only reduce the probability of waterlogging, reduce the construction volume of drainage systems, and reduce the drainage pressure of rivers, but also alleviate the pressure of water shortage. Rainwater collection and utilization is an important means to realize rainwater resource utilization, conserve groundwater, reduce urban floods and drainage system pressure, and improve and repair the urban water environment. It has become one of the important measures to alleviate water shortages, reduce the harm of rain and floods, and improve the utilization rate of water resources.

[0004] Compared with ground rainwater, rooftop rainwater has better water quality and is easier to collect. Urban rooftops have a large natural rainwater collection area, less mud and debris, and are connected to ground collection devices through downpipes, making it easy to collect rainwater. However, there are few rooftop rainwater collection and purification devices at present, and there are obvious defects and deficiencies: (1) Indiscriminate collection increases purification costs Pollutants in roof rainwater mainly come from the decomposition products of roofing materials and pollutants in the atmosphere. Since the concentration of pollutants in the initial rainwater on the roof is relatively high, the water quality is relatively turbid, but as the rainfall continues, the water quality of the rainwater will be significantly improved. This law of change is of great value to the design of rainwater collection and utilization. If the runoff rainwater with severe initial pollution is discarded during rainwater collection, the cost of subsequent purification can be greatly reduced. The current rainwater collection device lacks the initial rainwater discarding process, causing all the rainwater in the water storage tank to be affected by the initial rainwater, which increases the difficulty of rainwater treatment and purification. For example, the invention patent with the patent application number of 200920259745.4 and the name of "Rainwater Collection and Purification Device" discloses a rainwater collection and purification device, including a water collection plate and a water collection pipe, the outlet of the water collection pipe is connected to a sedimentation tank, an overflow hole is arranged on the upper part of the sedimentation tank, the other end of the overflow hole is connected to a water storage tank, and an outlet pipe is arranged at the bottom of the water storage tank; another example is the invention patent with the patent application number of 201010040064.6 and the name of "A Rainwater Collection and Purification Method and Device" discloses a rainwater collection and purification method and device, after collecting rainwater through the rain collection surface, it flows into a sedimentation tank for primary sedimentation and purification, and then the rainwater is filtered and purified and flows into the water cellar for further rainwater purification. However, it is difficult to remove pollutants in rainwater by the sedimentation method, and the sedimentation tank needs to be cleaned frequently, which increases the collection and purification cost. During the rainfall process, the sedimentation tank is affected by rainwater alluvial and is not easy to precipitate, resulting in rainwater flowing out of the overflow hole still carrying sludge and pollutants, and the purification is not thorough. If a discard device is used, the initial rainwater with severe pollution and more impurities can be separated from the later rainwater, which will greatly reduce the cost of rainwater purification.

[0005] (2) The purification process is complicated and the purification efficiency is low The existing rainwater collection and purification methods and devices use traditional sewage purification methods such as precipitation, adsorption, and disinfection with chemicals, which are not effective in rainwater purification and the procedures are very complicated. Whether it is a water storage system built on the roof, or a replenishment system combining roof water storage with infiltration wells and infiltration ditches, the use of purification measures such as precipitation, adsorption, and disinfection with chemicals is not the preferred method for rainwater purification. In the field of water recycling and reuse technology in my country, when the existing water purification membrane technology is applied to rainwater collection and purification, the purification efficiency is not obvious, it is difficult to exert its effectiveness, the cost is too high, and it does not conform to the development direction of energy conservation and emission reduction.

[0006] At the same time, for multi-story buildings, it is impossible to collect rainwater resources from top to bottom, nor is it possible to collect and purify them uniformly, and it is also impossible to recycle rainwater for cleaning purposes. Summary of the invention

[0007] The purpose of the present invention is to provide an integrated device and method for collecting, purifying and self-flushing rainwater resources in multi-story buildings, so as to solve the technical problems that for multi-story buildings, it is impossible to collect rainwater resources from top to bottom in an integrated manner, and it is impossible to collect and purify them in a unified manner, and it is impossible to recycle rainwater for cleaning. The present invention can collect rainwater resources from top to bottom in an integrated manner, and at the same time, collect and purify them in a unified manner, and recycle rainwater for cleaning.

[0008] In order to solve the above technical problems, the present invention provides a multi-story building rainwater resource collection, purification and self-flushing integrated device, comprising: A top rainwater collection mechanism, a middle rainwater collection mechanism and a bottom rainwater collection mechanism, wherein the top rainwater collection mechanism is arranged on the top of the multi-story building, the middle rainwater collection mechanism is arranged on the outward side of the middle of the multi-story building and surrounds the building in a ring shape, and the bottom rainwater collection mechanism is arranged on the bottom floor of the multi-story building; The top rainwater collection mechanism includes a collection pipe arranged on the top of the rainwater resource of the multi-story building, a top rainwater collection pool connected to the collection pipe, and a water vapor pressure switch, wherein the water vapor pressure switch is arranged on the top of the collection pipe, and the collection pipe is connected to the rainwater overflow pipe on the top of the multi-story building; The central rainwater collection mechanism comprises a plurality of variable-form external storage pools and a central connecting pipe, and adjacent variable-form external storage pools are connected to the central connecting pipe; The bottom rainwater collection mechanism includes a bottom collection slope, a bottom storage tank and a bottom connecting pipe, and the bottom connecting pipe connects the bottom collection slope and the bottom storage tank to collect rainwater; The top rainwater collection pool is connected to a central confluence pipe, and the central confluence pipe is connected to a variable external storage pool and a bottom storage pool; The rainwater purification mechanism comprises a rainwater purification pool connected to a central confluence pipe, a screw-type spiral fan blade and a replaceable filter membrane arranged in the rainwater purification pool, wherein the screw-type spiral fan blade is driven by a purification motor and is vertically arranged in the center of the rainwater purification pool, and the replaceable filter membrane is wound inside the rainwater purification pool; The outside of the rainwater purification pool is connected to a self-flushing mechanism.

[0009] Furthermore, the self-flushing mechanism includes an extraction pump and a delivery pump connected to the rainwater purification tank, the extraction pump delivers rainwater to the delivery pump, and the end of the delivery pump is connected to a first high-pressure nozzle, a second high-pressure nozzle and a third high-pressure nozzle; The first high-pressure nozzle is arranged inside the top-layer rainwater collection pool to spray and clean the top-layer rainwater collection pool; The second high-pressure nozzle is arranged inside the variable-form external holding pool component to spray and clean the variable-form external holding pool component; The third high-pressure nozzle is arranged inside the bottom holding pool to spray and clean the bottom holding pool.

[0010] A plurality of cleaning grids are arranged in the bottom holding pool, a liquid level detection module is arranged in the bottom connecting pipe, and the liquid level detection module is electrically connected to the purification motor of the rainwater purification mechanism.

[0011] A circulation pump is arranged at the bottom of the rainwater purification tank, a suction port of the circulation pump is arranged between the rainwater purification tank and the replaceable filter membrane, and a discharge port of the circulation pump is arranged inside the replaceable filter membrane.

[0012] Furthermore, an annular frame is provided in the rainwater purification tank to place a replaceable filter membrane, and the annular frame clamps two sides of the replaceable filter membrane.

[0013] Furthermore, the variable form external holding pool member includes an external frame and a rubber layer covering the external frame, the external frame is provided with a plurality of vertical rods on the side close to the multi-story building, the vertical rods are provided with a plurality of rotatable fixing plates, the upper end of the rotatable fixing plate is rotatably provided with a fixing block, and the fixing block is fixed to the multi-story building by bolts.

[0014] Furthermore, a thickened section is provided in the central conduit, and an activated carbon layer, a coarse filter layer and a wash filter layer are sequentially provided in the thickened section from top to bottom.

[0015] Furthermore, a central liquid level gauge is provided in the variable-form external containing pool, and the central liquid level gauge is electrically controlled by the purification motor, the suction pump and the delivery pump.

[0016] Furthermore, a bottom liquid level gauge is provided in the bottom holding pool, and the bottom liquid level gauge is electronically controlled by the purification motor, the suction pump and the delivery pump.

[0017] Furthermore, a top liquid level gauge is provided in the top rainwater collection pool, and the top liquid level gauge is electronically controlled by the purification motor, the extraction pump and the delivery pump.

[0018] Another object of the present invention is to provide a method for collecting, purifying and flushing rainwater in multi-storey buildings. The above-mentioned multi-storey building rainwater resource collection, purification and self-flushing integrated device has the following steps for use: Step 1: The water vapor pressure switch at the top senses the pressure of rainwater flowing through the collection pipe, turns on the switch, and the rainwater flows into the rainwater collection pool on the top layer; at the same time, the rainwater falls into the variable-shaped external storage pool and is evenly distributed to each variable-shaped external storage pool by the middle connecting pipe; the bottom collection slope collects the rainwater at the bottom, and the rainwater flows into the bottom storage pool; Step 2: The central confluence pipe collects rainwater from the top rainwater collection pool, the variable external storage pool and the bottom storage pool, and flows them into the rainwater purification pool; Step 3: The purification motor starts, drives the screw-type spiral fan blades to rotate, stirs the rainwater purification pool, and filters the rainwater through the replaceable filter membrane; Step 4: The rainwater is transported to the delivery pump through the suction pump, and the top-level rainwater collection pool is sprayed and cleaned through the first high-pressure nozzle; the second high-pressure nozzle sprays and cleans the inside of the variable-form external storage pool; the third high-pressure nozzle sprays and cleans the inside of the bottom storage pool.

[0019] The beneficial effects of the present invention are: 1. The water vapor pressure switch senses the pressure of rainwater flowing through the collection pipe, turns on the switch, and the rainwater flows into the top rainwater collection pool, thereby automatically collecting the rainwater on the top.

[0020] 2. Through the various variable forms of external storage pools in the middle, rainwater from the middle layer of the building can be collected, and rainwater can be collected in all directions to increase the amount of rainwater collected.

[0021] 3. Through the bottom collection slope, rainwater can be collected at the bottom to increase the amount of rainwater collected.

[0022] 4. Rainwater can be purified through rainwater purification tanks and replaceable filter membranes.

[0023] 5. The first high-pressure nozzle sprays and cleans the top-level rainwater collection pool; the second high-pressure nozzle sprays and cleans the inside of the variable external storage pool; the third high-pressure nozzle sprays and cleans the inside of the bottom storage pool, thereby self-cleaning the entire device and improving the overall cleanliness.

[0024] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 It is a structural schematic diagram of the integrated device and method for collecting, purifying and self-flushing rainwater resources for multi-storey buildings of the present invention; Figure 2 yes Figure 1 The enlarged view of point A in the middle; Figure 3 It is a structural schematic diagram of the self-flushing mechanism of the present invention; Figure 4 yes Figure 1 Enlarged view of point B in the middle.

[0027] In the figure: 1. Top rainwater collection mechanism; 11. Collection pipe; 12. Top rainwater collection pool; 13. Water vapor pressure switch; 14. Top liquid level gauge; 2. Middle rainwater collection mechanism; 22. Middle connecting pipe; 3. Bottom rainwater collection mechanism; 31. Bottom collection slope; 32. Bottom storage pool; 33. Bottom connecting pipe; 34. Cleaning grid; 35. Liquid level detection module; 4. Central manifold; 5. Rainwater purification mechanism; 51. Rainwater purification pool; 52. Screw-type spiral fan blades; 53. Replaceable filter membrane; 54. Circulation pump; 55. Ring frame; 56. Purification motor; 6. Self-flushing mechanism; 61. Suction pump; 62. Delivery pump; 63. First high-pressure nozzle; 64. Second high-pressure nozzle; 65. Third high-pressure nozzle; 7. Variable external pool member; 71. External frame; 72. Rubber layer; 73. Vertical rod; 74. Rotatable fixing plate; 75. Fixing block; 8. Thickening section; 81. Activated carbon layer; 82. Coarse filter layer; 83. Wash filter layer. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0029] like Figures 1 to 4As shown, a multi-story building rainwater resource collection, purification and self-flushing integrated device includes: a top rainwater collection mechanism 1, a middle rainwater collection mechanism 2 and a bottom rainwater collection mechanism 3. The top rainwater collection mechanism 1 is arranged on the top of the multi-story building, the middle rainwater collection mechanism 2 is arranged on the outward side of the middle of the multi-story building and surrounds the building in a ring shape, and the bottom rainwater collection mechanism 3 is arranged on the bottom of the multi-story building. The top rainwater collection mechanism 1 collects rainwater on the top of the multi-story building, and the middle rainwater collection mechanism 2 collects rainwater in the middle of the multi-story building. In this embodiment, the middle rainwater collection mechanism 2 can be set to multiple. The bottom rainwater collection mechanism 3 collects rainwater at the bottom of the multi-story building.

[0030] Among them, the top rainwater collection mechanism 1 includes a collection pipe 11 arranged on the top of the rainwater resource of the multi-story building, a top-floor rainwater collection pool 12 connected to the collection pipe 11, and a water vapor electric pressure switch 13. The water vapor electric pressure switch 13 is arranged on the top of the collection pipe 11. The collection pipe 11 is connected to the rainwater overflow pipe on the top of the multi-story building. The rainwater overflow pipe discharges the rainwater on the top of the multi-story building into the collection pipe 11. The rainwater in the collection pipe 11 triggers the water vapor electric pressure switch 13. The water vapor electric pressure switch 13 opens the collection pipe 11, thereby discharging the rainwater through the collection pipe 11 into the top-floor rainwater collection pool 12.

[0031] The middle rainwater collection mechanism 2 includes a plurality of variable external storage pools 7 and a middle connecting pipe 22, and the adjacent variable external storage pools 7 are connected to the middle connecting pipe 22; the variable external storage pool 7 includes an external frame 71 and a rubber layer 72 coated on the external frame 71, and the external frame 71 is provided with a plurality of vertical rods 73 on the side close to the multi-story building, and the vertical rods 73 are sleeved with a plurality of rotatable fixing plates 74, and the upper end of the rotatable fixing plates 74 is rotatably provided with a fixing block 75, and the fixing block 75 is fixed to the multi-story building by bolts. The user fixes it through the fixing plate, and rotates the rotatable fixing plates 74 on the plurality of vertical rods 73, so that the rotatable fixing plates 74 are suitable for the outer side of the building with an uneven outer layer, thereby improving the scope of application and being suitable for buildings with different structures. The rainwater from outside falls into the variable form external holding pool 7, and then all the variable form external holding pools 7 are connected through the middle connecting pipe 22, so that several variable form external holding pools 7 form a whole. The rainwater falling into the variable form external holding pool 7 will be evenly distributed, thereby increasing the water storage capacity of the variable form external holding pool 7.

[0032] like Figures 1 to 3 As shown, the bottom rainwater collecting mechanism 3 includes a bottom collecting slope 31, a bottom collecting pool 32 and a bottom connecting pipe 33. The bottom connecting pipe 33 connects the bottom collecting slope 31 and the bottom collecting pool 32 to collect rainwater; rainwater is collected by the bottom collecting slope 31, and the rainwater is discharged to the bottom collecting pool 32 through the bottom connecting pipe 33.

[0033] like Figures 1 to 4 As shown, the top rainwater collection pool 12 is connected to a central collection pipe 4, and the central collection pipe 4 is connected to a variable external storage pool 7 and a bottom storage pool 32. The rainwater in the upper, middle and lower parts is collected through the central collection pipe 4 and then processed uniformly.

[0034] like Figures 1 to 4 As shown, the rainwater purification mechanism 5 includes a rainwater purification pool 51 connected to the central confluence pipe 4, a screw-type spiral blade 52, and a replaceable filter membrane 53 arranged in the rainwater purification pool 51. The replaceable filter membrane 53 is annularly wound around the outside of the screw-type spiral blade 52. The screw-type spiral blade 52 is driven by a purification motor 56 and is vertically arranged at the center of the rainwater purification pool 51. The replaceable filter membrane 53 is wound inside the rainwater purification pool 51. The rainwater collected by the central confluence pipe 4 is placed inside the replaceable filter membrane 53, so that all impurities are inside the replaceable filter membrane 53.

[0035] The purification motor 56 is driven to drive the screw-type spiral fan blades 52 to rotate, stirring the rainwater in the rainwater purification pool 51, so that the rainwater passes through the replaceable filter membrane 53 for filtration, and impurities will remain inside the replaceable filter membrane 53.

[0036] The outside of the rainwater purification pool 51 is connected to a self-flushing mechanism 6. The self-flushing mechanism 6 includes an extraction pump 61 and a delivery pump 62 connected to the rainwater purification pool 51. The extraction pump 61 delivers rainwater to the delivery pump 62. The end of the delivery pump 62 is connected to a first high-pressure nozzle 63, a second high-pressure nozzle 64 and a third high-pressure nozzle 65; the first high-pressure nozzle 63 is arranged inside the top rainwater collection pool 12 to spray and clean the top rainwater collection pool 12; the second high-pressure nozzle 64 is arranged inside the variable form external holding pool 7 to spray and clean the variable form external holding pool 7; the third high-pressure nozzle 65 is arranged inside the bottom holding pool 32 to spray and clean the bottom holding pool 32.

[0037] like Figure 1 As shown, a plurality of cleaning grids 34 are arranged in the bottom holding pool 32, a liquid level detection module 35 is arranged in the bottom connecting pipe 33, and the liquid level detection module 35 is electrically connected to the purification motor 56 of the rainwater purification mechanism 5. When rainwater is accumulated in the bottom holding pool 32, the liquid level detection module 35 detects that the liquid level rises and sends a start signal to the purification motor 56, thereby starting to purify the entire device.

[0038] A circulation pump 54 is provided at the bottom of the rainwater purification tank 51 , a suction port of the circulation pump 54 is provided between the rainwater purification tank 51 and the replaceable filter membrane 53 , and a discharge port of the circulation pump 54 is provided inside the replaceable filter membrane 53 .

[0039] An annular frame 55 is provided in the rainwater purification pool 51 to place the replaceable filter membrane 53 . The annular frame 55 clamps two sides of the replaceable filter membrane 53 , so that the replaceable filter membrane 53 can be replaced.

[0040] like Figure 4 As shown, a thickened section 8 is provided in the central conduit 4, and an activated carbon layer 81, a coarse filter layer 82 and a wash filter layer 83 are arranged in the thickened section 8 from top to bottom, so that the active carbon absorbs the odor of the rainwater and performs two-pass filtration for purification.

[0041] Among them, a middle level gauge is arranged in the variable external storage tank 7, and the middle level gauge is electrically controlled by the purification motor 56, the extraction pump 61 and the delivery pump 62. A bottom level gauge is arranged in the bottom storage tank 32, and the bottom level gauge is electrically controlled by the purification motor 56, the extraction pump 61 and the delivery pump 62. A top level gauge 14 is arranged in the top rainwater collection tank 12, and the top level gauge 14 is electrically controlled by the purification motor 56, the extraction pump 61 and the delivery pump 62. Through each level gauge, the purification system can be started when rainwater accumulates in any tank.

[0042] Example 2: A method for collecting, purifying and flushing rainwater in a multi-storey building. The above-mentioned multi-storey building rainwater resource collection, purification and self-flushing integrated device has the following steps for use: Step 1: The water vapor pressure switch 13 at the top senses the pressure of the rainwater flowing through the collection pipe 11, and turns on the switch, so that the rainwater flows into the top rainwater collection pool 12; at the same time, the rainwater falls into the variable-form external storage pool 7, and is evenly distributed to each variable-form external storage pool 7 by the middle connecting pipe 22; the bottom collection slope 31 collects the rainwater at the bottom, and the rainwater flows into the bottom storage pool 32; Step 2: The central confluence pipe 4 collects rainwater from the top rainwater collection pool 12, the variable external storage pool 7 and the bottom storage pool 32, and uniformly flows them into the rainwater purification pool 51; Step 3: The purification motor 56 is started to drive the screw-type spiral fan blade 52 to rotate, stir the rainwater purification pool 51, and filter the rainwater through the replaceable filter membrane 53; Step 4: The rainwater is transported to the delivery pump 62 through the suction pump 61, and the top-level rainwater collection pool 12 is sprayed and cleaned through the first high-pressure nozzle 63; the second high-pressure nozzle 64 sprays and cleans the inside of the variable-form external holding pool 7; the third high-pressure nozzle 65 sprays and cleans the inside of the bottom holding pool 32.

[0043] In summary: the pressure of rainwater flowing through the collection pipe 11 is sensed by the water vapor pressure switch 13, and the switch is turned on, so that rainwater flows into the top rainwater collection pool 12, thereby automatically collecting rainwater on the top. Through the various variable external storage pool parts 7 in the middle, rainwater in the middle layer of the building can be collected, and rainwater can be collected in all directions to increase the amount of rainwater collected. Through the bottom collection slope 31, rainwater can be collected at the bottom to increase the amount of rainwater collected. Rainwater can be purified by the rainwater purification pool 51 and the replaceable filter membrane 53. The top rainwater collection pool 12 is sprayed and cleaned by the first high-pressure nozzle 63; the variable external storage pool part 7 is sprayed and cleaned by the second high-pressure nozzle 64; the bottom storage pool 32 is sprayed and cleaned by the third high-pressure nozzle 65, so that the entire device is self-cleaned to improve the overall cleanliness.

[0044] The various devices selected in this application are all universal standard parts or parts known to those skilled in the art, and their structures and principles can be known to those skilled in the art through technical manuals or conventional experimental methods.

[0045] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0047] Based on the above ideal embodiments of the present invention, the relevant staff can make various changes and modifications without departing from the technical concept of the present invention through the above description. The technical scope of the present invention is not limited to the contents of the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A multi-storey building rainwater resource collection, purification and self-flushing integrated device, characterized in that: include: A top rainwater collection mechanism (1), a middle rainwater collection mechanism (2) and a bottom rainwater collection mechanism (3), wherein the top rainwater collection mechanism (1) is arranged on the top of a multi-storey building, the middle rainwater collection mechanism (2) is arranged on the middle of the multi-storey building facing outward and surrounds the building in a ring shape, and the bottom rainwater collection mechanism (3) is arranged on the bottom floor of the multi-storey building; The top rainwater collection mechanism (1) comprises a collection pipe (11) arranged at the top of the rainwater resource of the multi-storey building, a top-floor rainwater collection pool (12) connected to the collection pipe (11), and a water vapor pressure switch (13); the water vapor pressure switch (13) is arranged at the top of the collection pipe (11); the collection pipe (11) is connected to the rainwater overflow pipe at the top of the multi-storey building; The central rainwater collection mechanism (2) comprises a plurality of external storage pools (7) of variable form and a central connecting pipe (22), and adjacent external storage pools (7) of variable form are connected to the central connecting pipe (22); The bottom rainwater collection mechanism (3) comprises a bottom collection slope (31), a bottom storage tank (32) and a bottom connecting pipe (33), wherein the bottom connecting pipe (33) connects the bottom collection slope (31) and the bottom storage tank (32) to collect rainwater; The top rainwater collection pool (12) is connected to a central confluence pipe (4), and the central confluence pipe (4) is connected to a variable-shaped external storage pool member (7) and a bottom storage pool (32); The rainwater purification mechanism (5) comprises a rainwater purification pool (51) connected to the central confluence pipe (4), a screw-type spiral blade (52) and a replaceable filter membrane (53) arranged in the rainwater purification pool (51), wherein the screw-type spiral blade (52) is driven by a purification motor (56) and is vertically arranged in the center of the rainwater purification pool (51), and the replaceable filter membrane (53) is wound inside the rainwater purification pool (51); The outside of the rainwater purification pool (51) is connected to a self-flushing mechanism (6).

2. The integrated device for collecting, purifying and self-flushing rainwater resources for multi-storey buildings as claimed in claim 1, characterized in that: The self-flushing mechanism (6) comprises an extraction pump (61) and a delivery pump (62) connected to the rainwater purification pool (51), the extraction pump (61) delivers rainwater to the delivery pump (62), and the end of the delivery pump (62) is connected to a first high-pressure nozzle (63), a second high-pressure nozzle (64) and a third high-pressure nozzle (65); The first high-pressure nozzle (63) is arranged inside the top-layer rainwater collection pool (12) to spray and clean the top-layer rainwater collection pool (12); The second high-pressure spray head (64) is arranged inside the variable-form external storage tank (7) to spray and clean the inside of the variable-form external storage tank (7); The third high-pressure spray head (65) is arranged inside the bottom holding pool (32) to spray and clean the bottom holding pool (32).

3. The integrated device for collecting, purifying and flushing rainwater for multi-storey buildings as claimed in claim 2 is characterized in that: A plurality of cleaning grilles (34) are arranged in the bottom storage pool (32), a liquid level detection module (35) is arranged in the bottom connecting pipe (33), and the liquid level detection module (35) is electrically connected to a purification motor (56) of a rainwater purification mechanism (5); A circulation pump (54) is provided at the bottom of the rainwater purification tank (51), the suction port of the circulation pump (54) is provided between the rainwater purification tank (51) and the replaceable filter membrane (53), and the discharge port of the circulation pump (54) is provided inside the replaceable filter membrane (53).

4. The integrated device for collecting, purifying and self-flushing rainwater resources for multi-storey buildings as claimed in claim 3 is characterized in that: An annular frame (55) is provided in the rainwater purification pool (51) to place a replaceable filter membrane (53), and the annular frame (55) clamps two sides of the replaceable filter membrane (53).

5. The integrated device for collecting, purifying and self-flushing rainwater resources for multi-storey buildings as claimed in claim 4 is characterized in that: The variable-form external storage pool member (7) comprises an external frame (71) and a rubber layer (72) covering the external frame (71); a plurality of vertical rods (73) are arranged on the side of the external frame (71) close to the multi-story building; a plurality of rotatable fixing plates (74) are sleeved on the vertical rods (73); a fixing block (75) is rotatably arranged at the upper end of the rotatable fixing plate (74); and the fixing block (75) is fixed to the multi-story building by bolts.

6. The integrated device for collecting, purifying and self-flushing rainwater resources for multi-storey buildings as claimed in claim 5, characterized in that: The central conduit (4) (11) is provided with a thickened section (8), and the thickened section (8) is provided with an activated carbon layer (81), a coarse filter layer (82) and a wash filter layer (83) in order from top to bottom.

7. The integrated device for collecting, purifying and self-flushing rainwater for multi-storey buildings as claimed in claim 6, characterized in that: A central liquid level gauge is arranged in the variable-form external containing pool (7), and the central liquid level gauge is electrically controlled by the purification motor (56), the suction pump (61) and the delivery pump (62).

8. The integrated device for collecting, purifying and self-flushing rainwater for multi-storey buildings as claimed in claim 7, characterized in that: A bottom liquid level gauge is provided in the bottom holding tank (32), and the bottom liquid level gauge is electrically controlled by the purification motor (56), the suction pump (61) and the delivery pump (62).

9. The integrated device for collecting, purifying and self-flushing rainwater for multi-storey buildings as claimed in claim 8, characterized in that: A top liquid level gauge (14) is provided in the top rainwater collection pool (12), and the top liquid level gauge (14) is electrically controlled by the purification motor (56), the extraction pump (61) and the delivery pump (62).

10. A method for collecting, purifying and flushing rainwater in multi-storey buildings, characterized in that: The device comprises a multi-storey building rainwater resource collection, purification and self-flushing integrated device as claimed in any one of claims 1 to 9, and the steps of using the device are as follows: Step 1: The water vapor pressure switch (13) at the top senses the pressure of rainwater flowing through the collection pipe (11), opens the switch, and the rainwater flows into the top rainwater collection pool (12); at the same time, the rainwater falls into the variable-form external storage pool (7), and is evenly distributed to each variable-form external storage pool (7) by the middle connecting pipe (22); the bottom collection slope (31) collects the rainwater at the bottom, and the rainwater flows into the bottom storage pool (32); Step 2: The central confluence pipe (4) collects rainwater from the top rainwater collection pool (12), the variable external storage pool (7) and the bottom storage pool (32), and uniformly flows into the rainwater purification pool (51); Step 3: The purification motor (56) is started to drive the screw-type spiral fan blade (52) to rotate, stir the rainwater purification pool (51), and filter the rainwater through the replaceable filter membrane (53); Step 4: The rainwater is transported to the transport pump (62) through the suction pump (61), and the top rainwater collection pool (12) is sprayed and cleaned through the first high-pressure nozzle (63); the second high-pressure nozzle (64) sprays and cleans the inside of the variable-shaped external storage pool (7); and the third high-pressure nozzle (65) sprays and cleans the inside of the bottom storage pool (32).

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