CN220182996U - Rainwater collecting and purifying system - Google Patents
Rainwater collecting and purifying system Download PDFInfo
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- CN220182996U CN220182996U CN202320583773.1U CN202320583773U CN220182996U CN 220182996 U CN220182996 U CN 220182996U CN 202320583773 U CN202320583773 U CN 202320583773U CN 220182996 U CN220182996 U CN 220182996U
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- Prior art keywords
- tank
- rainwater
- water
- filter screen
- stainless steel
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 125
- 239000004576 sand Substances 0.000 claims abstract description 64
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 58
- 229910001220 stainless steel Inorganic materials 0.000 claims abstract description 39
- 239000010935 stainless steel Substances 0.000 claims abstract description 39
- 238000001914 filtration Methods 0.000 claims abstract description 36
- 238000001179 sorption measurement Methods 0.000 claims abstract description 29
- 238000000746 purification Methods 0.000 claims abstract description 13
- 239000008213 purified water Substances 0.000 claims abstract description 7
- 238000011010 flushing procedure Methods 0.000 claims description 14
- 238000011001 backwashing Methods 0.000 claims description 4
- 239000012535 impurity Substances 0.000 abstract description 10
- 239000002245 particle Substances 0.000 abstract description 9
- 239000008235 industrial water Substances 0.000 abstract description 5
- 230000009471 action Effects 0.000 abstract description 2
- 229910052799 carbon Inorganic materials 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000428 dust Substances 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000004064 recycling Methods 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 229910001385 heavy metal Inorganic materials 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 238000001556 precipitation Methods 0.000 description 2
- 238000009287 sand filtration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Landscapes
- Water Treatment By Sorption (AREA)
Abstract
The utility model relates to the technical field of rainwater collection, in particular to a rainwater collection and purification system, which comprises a rainwater collection tank, a filtering water tank communicated with the water inlet end of the rainwater collection tank, a sand filter group communicated with the water outlet end of the rainwater collection tank, an activated carbon adsorption tank communicated with the water outlet end of the sand filter group, and a purified water tank communicated with the water outlet end of the activated carbon adsorption tank, wherein the filtering water tank is arranged at the water inlet end of the rainwater collection tank; at least one stainless steel filter screen is arranged in the filtering water tank. According to the utility model, through the combined action of the filtering water tank, the rainwater collecting tank, the sand filtering tank group, the active carbon adsorption tank and the pure water tank, the collection and filtration of rainwater are realized, the standards of industrial water and domestic water are finally reached for use, the rainwater resources in a factory are fully utilized, and the cost is reduced; at least one stainless steel filter screen is arranged in the filtering water tank, and the stainless steel filter screen can effectively filter out impurities such as the largest suspended particles in the rainwater, and meanwhile, the quick passing of the rainwater is not affected.
Description
Technical Field
The utility model relates to the technical field of rainwater collection, in particular to a rainwater collection and purification system.
Background
The electrolytic aluminum production factory is mainly composed of an electrolytic production factory building, an overhaul factory building, a comprehensive factory building, a dining room, an office, a dining room, a dormitory, a power factory building, a greening area and a road hardening area, the area is large, a rain drainage system is complete, roof of each factory building is provided with a gutter, the gutter is connected with a vertical downpipe on the outer side of the factory building, roof rainwater is organically collected, the rainwater in the greening permeable area overflows and then enters the hardening road of the factory building to flow into a rainwater grate of the factory building to enter a rainwater pipe network of the factory building, and finally the rainwater is discharged into a city drainage pipe network through the rainwater pipe network. Because the electrolytic aluminum production plant area is generally larger, taking a plant area with a land area of about 1700 mu as an example, the outdoor permeable area is about 260 mu, the effective collecting area of the rainwater in the plant area is up to 96 ten thousand square meters, when the average rainfall is 400-600 mm/year, the rainfall discharged outside the plant area can reach 38.4-57.6 ten thousand cubic meters, and if the rainwater is fully utilized, the water consumption can be effectively reduced. Because the rainwater contacts with air in the falling process, part of dust falls on the ground, the roof and the like, water flows to wash the roof and particles carried by the ground flow into the factory rain drainage system, so that the rainwater conductivity slightly rises, but is still close to purified water, main pollutants are carried dust and washed particles, and the water quality is turbid, so that dust and particles need to be purified, and water sources are supplemented for domestic water and production water in the factory.
Disclosure of Invention
In order to solve the problems in the background technology, the utility model provides a rainwater collecting and purifying system, which can collect and purify rainwater to ensure that the rainwater reaches industrial water and domestic water standards and supplement water sources for factories.
The utility model adopts the following technical scheme:
a rainwater collection and purification system comprises a rainwater collection tank, a filtering water tank communicated with the water inlet end of the rainwater collection tank, a sand filter group communicated with the water outlet end of the rainwater collection tank, an activated carbon adsorption tank communicated with the water outlet end of the sand filter group, and a purified water tank communicated with the water outlet end of the activated carbon adsorption tank; at least one stainless steel filter screen is arranged in the filtering water tank.
Further, a first stainless steel filter screen, a second stainless steel filter screen and a third stainless steel filter screen are sequentially arranged in the filtering water tank along the water flow direction, the first stainless steel filter screen is a 5-five-mesh filter screen, the second stainless steel filter screen is a 20-mesh filter screen, and the third stainless steel filter screen is a 100-mesh filter screen.
Further, the radial cross section of the stainless steel filter screen and the filtering water tank is an included angle of 45 degrees.
Further, the sand filter group comprises a coarse sand filter, a medium sand filter and a fine sand filter which are sequentially communicated, wherein the water inlet end of the coarse sand filter is communicated with the water outlet end of the rainwater collecting tank, and the water outlet end of the fine sand filter is communicated with the water inlet end of the activated carbon adsorption tank.
Further, a water lifting pump is arranged between the rainwater collecting tank and the sand filter group.
Further, the purified water tank is respectively communicated with the sand filter group and the activated carbon adsorption tank through a backwashing water pipe.
Further, a back flush water pump is arranged on the back flush water pipe.
Further, a back flushing drain pipe is arranged between the sand filter group and the rainwater collecting tank.
Compared with the prior art, the utility model has the beneficial effects that:
1) The utility model realizes the collection and filtration of rainwater by the combined action of the filtering water tank, the rainwater collecting tank, the sand filtering tank group, the active carbon adsorption tank and the pure water tank, finally achieves the standard of industrial water and domestic water for use, fully utilizes the rainwater resource in a factory and reduces the cost.
2) The filtering water tank is internally provided with at least one stainless steel filter screen, and the stainless steel filter screen can effectively filter out impurities such as the largest suspended particles in the rainwater, and meanwhile, the quick passing of the rainwater is not influenced.
3) According to the utility model, the radial cross section of the stainless steel filter screen and the filtering water tank is an included angle of 45 degrees, so that the contact area and contact time of the stainless steel filter screen and rainwater are increased, and more sufficient filtering of impurities is facilitated.
Drawings
For a clearer description of embodiments of the utility model or of solutions in the prior art, the drawings which are used in the description of the embodiments or of the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained from them without inventive effort for a person skilled in the art.
FIG. 1 is a schematic view of the overall structure of a rainwater collection and purification system of the present utility model;
fig. 2 is a schematic structural view of the filtering sink of the present utility model.
In the figure: the rainwater collecting tank, the 2-filtering water tank, the 3-sand filter tank group, the 4-activated carbon adsorption tank, the 5-pure water tank, the 6-water lifting pump, the 7-back flushing water pipe, the 8-back flushing water draining pipe, the 21-first stainless steel filter screen, the 22-second stainless steel filter screen, the 23-third stainless steel filter screen, the 24-clamping tank, the 31-coarse sand filter tank, the 32-medium sand filter tank, the 33-fine sand filter tank, the 71-back flushing water pump, the 72-back flushing water inlet valve and the 81-back flushing water draining valve.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to fall within the scope of the utility model.
The utility model is discussed in detail below in conjunction with fig. 1-2 and the specific embodiments:
the embodiment of the utility model provides a rainwater collection and purification system, which is shown in figures 1-2, and comprises a rainwater collection tank 1, a filtering water tank 2 communicated with the water inlet end of the rainwater collection tank 1, a sand filter tank group 3 communicated with the water outlet end of the rainwater collection tank 1, an activated carbon adsorption tank 4 communicated with the water outlet end of the sand filter tank group 3, and a purified water tank 5 communicated with the water outlet end of the activated carbon adsorption tank 4, wherein after rainwater is collected together, impurities such as large suspended particles in the rainwater are filtered out through the filtering water tank 2 and flow into the rainwater collection tank 1, natural precipitation is carried out in the rainwater collection tank 1, so that large-particle-size suspended matters and turbidity in the water are reduced, the naturally precipitated rainwater enters the sand filter tank group 3 in a pumping or gravity flow mode, the visible suspended matters in the rainwater are removed, the rainwater enters the activated carbon adsorption tank 4, free matters, microorganisms and partial heavy metal ions in the rainwater are filtered, the chromaticity of the rainwater is reduced, and finally the standard of industrial water and domestic water is reached. Specifically, the size of the rainwater collection tank 1 is calculated according to the local maximum rainfall intensity and the maximum annual rainfall. The sand in the sand filter group 3 adopts river sand, the cost of the river sand is low, the water purifying effect is good, and in addition, the influence on the PH and hardness of water quality is small. At least one stainless steel filter screen is arranged in the filtering water tank 2, and the stainless steel filter screen can effectively filter out impurities such as the largest suspended particles in the rainwater, and meanwhile, the quick passing of the rainwater is not affected.
It should be noted that, the water inlet end and the water outlet end in the specification do not indicate specific positions, and only represent the flowing direction of rainwater.
Further, a first stainless steel filter screen 21, a second stainless steel filter screen 22 and a third stainless steel filter screen 23 are sequentially arranged in the filtering water tank 2 along the water flow direction, the first stainless steel filter screen 21 is a 5-five-mesh filter screen, the pore diameter of the filter screen is 4.48mm, the second stainless steel filter screen 22 is a 20-mesh filter screen, the pore diameter of the filter screen is 1.05mm, the third stainless steel filter screen 23 is a 100-mesh filter screen, the pore diameter of the filter screen is 0.18mm, and after rainwater passes through the stainless steel filter screens with the three specifications, impurities such as large suspended particles are filtered out and the size of the residual impurities is reduced to be below 0.18 mm.
Further, the radial cross section of the stainless steel filter screen and the filtering water tank 2 is an included angle of 45 degrees, so that the contact area and contact time of the stainless steel filter screen and rainwater are increased, and more sufficient impurity filtering is facilitated. Specifically, be provided with at least one draw-in groove 24 in the filtration basin 2, the stainless steel filter screen inserts the use in the draw-in groove 24, can dismantle at any time and install, conveniently changes or the clearance.
Further, the sand filter group 3 comprises a coarse sand filter 31, a medium sand filter 32 and a fine sand filter 33 which are sequentially communicated, the water inlet end of the coarse sand filter 31 is communicated with the water outlet end of the rainwater collecting tank 1, the water outlet end of the fine sand filter 33 is communicated with the water inlet end of the activated carbon adsorption tank 4, and after the rainwater is subjected to three-stage coarse-to-fine sand filtration treatment, visible suspended matters in the rainwater are removed, and the transparency reaches 100%. Specifically, the fineness modulus of the coarse sand filter tank 31 is 3.1-3.7, and the average granularity is more than 0.5mm; the fineness modulus of the medium sand filter 32 is 2.3-3.0, and the average granularity is 0.35-0.5mm; the fineness modulus of the fine sand filter 33 is 0.7-1.5, and the average granularity is 0.25-0.35mm.
Further, a water lifting pump 6 is arranged between the rainwater collecting tank 1 and the sand filter group 3 and is used for pumping rainwater in the rainwater collecting tank to the sand filter group 3.
Further, the pure water tank 5 is respectively communicated with the sand filter group 3 and the activated carbon adsorption tank 4 through the backwashing water pipe 7, the sand filter group 3 and the activated carbon adsorption tank 4 are required to be washed and cleaned periodically, good filtering and adsorption functions of the sand filter group 3 and the activated carbon adsorption tank 4 are guaranteed, when the sand filter group and the activated carbon adsorption tank are required to be washed and cleaned, pure water in the pure water tank 5 flows to the sand filter group 3 and the activated carbon adsorption tank 4 through the backwashing water pipe 7 to be backwashed, and backwashed water is recycled into the rainwater collecting tank 1, so that the full recycling of rainwater is realized.
Further, a back flush water pump 71 is arranged on the back flush water pipe 7, and the back flush water pump 71 pumps the water in the pure water tank 5 to the sand filter group 3 and the activated carbon adsorption tank 4 for back flush. Specifically, the backwash water pipe 7 is also provided with backwash water inlet valves 72, the backwash water inlet valves 72 are respectively arranged at the positions of the coarse sand filter tank 31, the medium sand filter tank 32 and the fine sand filter tank 33, and the activated carbon adsorption tanks 4, and the backwash water inlet valves 72 are closed at ordinary times and are opened when backwash is required.
Further, a back flushing drain pipe 8 is arranged between the sand filter group 3 and the rainwater collecting tank 1 and is used for recycling back flushing water into the rainwater collecting tank 1 so as to realize recycling of rainwater; a back flush drain valve 81 is arranged on the back flush drain pipe 8 and is used for controlling the flow of back flushed water to the rainwater collecting tank 1.
Specifically, except for the rainwater collecting tank 1, the filtering water tank 2, the sand filtering tank group 3, the activated carbon adsorption tank 4 and the pure water tank 5 are all closed treatment, and the overhaul holes are formed to avoid pollution.
The utility model relates to a rainwater collecting and purifying system, which comprises the following working procedures:
an external drainage valve is additionally arranged at the outlet of a plant area rainwater pipe network, rainwater is drained into the filtering water tank 2 through a pipeline, and the rainwater passes through a stainless steel filter screen in the filtering water tank 2 to filter out impurities such as the largest suspended particles and reduce the impurities to below 0.18 mm; the rainwater flows into the rainwater collecting tank 1 through the water filtering tank 2 to carry out natural precipitation, so that large-particle-size suspended matters in the rainwater can sink in a short time, and the suspended matters and turbidity in the water are reduced; the naturally precipitated rainwater sequentially enters a coarse sand pool, a medium sand pool and a fine sand pool in a pumping or self-flowing mode, and visible suspended matters in the water are removed, so that the transparency reaches 100%; the rainwater subjected to three-stage sand filtration enters an activated carbon adsorption tank 4, and the activated carbon adsorbs and filters free matters, microorganisms and partial heavy metal ions in the rainwater, so that the chromaticity of the rainwater is reduced, and the rainwater meets industrial water and domestic water standards; the rainwater after being adsorbed and filtered by the activated carbon enters a pure water tank 5 and is pumped to a system for producing water and domestic water; the sand filter group 3 and the activated carbon adsorption tank 4 need regular back flushing, a back flushing water pump 71 is opened during back flushing, the water in the pure water tank 5 is pumped to the sand filter group 3 and the activated carbon adsorption tank 4 for back flushing, and the water after back flushing is recycled to the rainwater collecting tank 1.
The utility model has been further described with reference to specific embodiments, but it should be understood that the detailed description is not to be construed as limiting the spirit and scope of the utility model, but rather as providing those skilled in the art with the benefit of this disclosure with the benefit of their various modifications to the described embodiments.
Claims (8)
1. A rainwater collection and purification system, characterized in that: the device comprises a rainwater collecting tank, a filtering water tank communicated with the water inlet end of the rainwater collecting tank, a sand filter group communicated with the water outlet end of the rainwater collecting tank, an activated carbon adsorption tank communicated with the water outlet end of the sand filter group, and a purified water tank communicated with the water outlet end of the activated carbon adsorption tank;
at least one stainless steel filter screen is arranged in the filtering water tank.
2. A rainwater collection and purification system as claimed in claim 1, wherein: the filter tank is internally provided with a first stainless steel filter screen, a second stainless steel filter screen and a third stainless steel filter screen in sequence along the water flow direction, wherein the first stainless steel filter screen is a 5-five-mesh filter screen, the second stainless steel filter screen is a 20-mesh filter screen, and the third stainless steel filter screen is a 100-mesh filter screen.
3. A rainwater collection and purification system as claimed in claim 1, wherein: the radial cross section of stainless steel filter screen with the filtering flume is 45 contained angles.
4. A rainwater collection and purification system as claimed in claim 1, wherein: the sand filter group comprises a coarse sand filter, a medium sand filter and a fine sand filter which are sequentially communicated, wherein the water inlet end of the coarse sand filter is communicated with the water outlet end of the rainwater collecting tank, and the water outlet end of the fine sand filter is communicated with the water inlet end of the activated carbon adsorption tank.
5. A rainwater collection and purification system as claimed in claim 1, wherein: a water lifting pump is arranged between the rainwater collecting tank and the sand filtering tank group.
6. A rainwater collection and purification system as claimed in claim 1, wherein: the purified water tank is respectively communicated with the sand filter group and the activated carbon adsorption tank through a backwashing water pipe.
7. A stormwater collection and purification system as claimed in claim 6, wherein: and a back flush water pump is arranged on the back flush water pipe.
8. A rainwater collection and purification system as claimed in claim 1, wherein: a back flushing drain pipe is also arranged between the sand filter group and the rainwater collecting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320583773.1U CN220182996U (en) | 2023-03-23 | 2023-03-23 | Rainwater collecting and purifying system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320583773.1U CN220182996U (en) | 2023-03-23 | 2023-03-23 | Rainwater collecting and purifying system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220182996U true CN220182996U (en) | 2023-12-15 |
Family
ID=89102556
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320583773.1U Active CN220182996U (en) | 2023-03-23 | 2023-03-23 | Rainwater collecting and purifying system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220182996U (en) |
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2023
- 2023-03-23 CN CN202320583773.1U patent/CN220182996U/en active Active
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