Factory rainwater recycling system

Abstract

The utility model discloses a factory rainwater recycling system which comprises a roof rainwater collecting system, a ground rainwater collecting system and a reservoir, a silt collecting groove is formed in the middle side of the bottom of the reservoir, the left side of the reservoir is communicated with the roof rainwater collecting system and the ground rainwater collecting system, and a filtering piece is arranged below water inlet in the reservoir. The filtering piece comprises a supporting piece, an upper fixing plate and a lower fixing plate, an arc-shaped filtering plate is connected between the upper fixing plate and the lower fixing plate, a water baffle cover is arranged on the periphery of the arc-shaped filtering plate, and a sediment extraction mechanism is arranged in the sediment collecting tank; by arranging a lower fixing plate and an arc-shaped filter plate, impurities in rainwater entering the reservoir fall onto the lower fixing plate of the arc-shaped filter plate under the action of water flow impact and gravity, the effect of automatically cleaning the arc-shaped filter plate is achieved, the smoothness of the arc-shaped filter plate is better guaranteed, blockage of the arc-shaped filter plate is reduced, and the service life of the arc-shaped filter plate is prolonged. The passing efficiency of the filter plate is improved, and the cleaning frequency of the filter mechanism is reduced.

Description

TECHNICAL FIELD

[0001] The utility model belongs to rainwater recycling technical field, especially a kind of factory rainwater recycling treatment system. BACKGROUND

[0002] Sponge city is constructed, i.e. low-impact development rainwater system is constructed, mainly refers to through "seep, stagnate, store, purify, use, drain" and multiple technical approaches, realize city benign hydrology cycle, improve the seepage, regulation and storage, purification, utilization and drainage capacity of runoff rainwater, maintain or restore the sponge function of city.For power plant area, because the water consumption of power plant area is larger, and in order to save water cost to a greater extent, relieve urban drainage pressure, also encourage support to use rainwater recycling system to recycle rainwater.

[0003] For factory rainwater recycling treatment system, by searching, the utility model patent with Chinese patent publication number CN219840153U discloses a rainwater recycling system in power plant, as shown in Figure 1 It mainly includes roof rainwater collection pipe a and ground rainwater collection pipe b, roof rainwater collection pipe a and ground rainwater collection pipe b are connected to water storage tank d through water storage pipe c, the upper side of water storage tank d is provided with horizontally arranged filter mechanism e, the lower side of one side of water storage tank d is provided with pressurized water pump f, and pressurized water pump f sends filtered rainwater in water storage tank d to cooling cylinder h or other pipeline through conveying pipe g.

[0004] The power plant rainwater recycling system similar to the above technical scheme in prior art is found to have room for improvement in actual implementation process: rainwater storage tank is only provided with horizontal filter mechanism at top for filtering treatment to collected rainwater, and the residue of filtration is easy to stay on filter mechanism, thereby easily affecting the passing efficiency of rainwater on filter mechanism, and increasing the cleaning frequency of filter mechanism. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies and shortcomings in prior art, the utility model aims at providing a factory rainwater recycling treatment system, which solves the problems in prior art that rainwater storage tank is only provided with horizontal filter mechanism at top for filtering treatment to collected rainwater, and the residue of filtration is easy to stay on filter mechanism, thereby easily affecting the passing efficiency of rainwater on filter mechanism, and increasing the cleaning frequency of filter mechanism.

[0006] In order to solve the above technical problems, the utility model discloses the following technical scheme: A factory area rainwater recycling system, including roof rainwater collection system, ground rainwater collection system and water storage tank, the water storage tank bottom middle side is equipped with the sand collection groove that is concave downward, is equipped with the water intake area in the left side of sand collection groove of water storage tank, is equipped with the pumping area in the right side of sand collection groove of water storage tank, the bottom height of pumping area is higher than the bottom height of water intake area, and the bottom height of water intake area is higher than the height of sand collection groove, the left side upper portion of water storage tank is passed through first water inlet and is communicated with roof rainwater collection system, and the left side upper portion of water storage tank is passed through second water inlet and is communicated with ground rainwater collection system, be equipped with filter piece in the below of first water inlet and second water inlet in water storage tank, the filter piece includes support, and the left side of support is equipped with upper fixed plate, and the right side of support is equipped with lower fixed plate, and upper fixed plate is higher than lower fixed plate, and the arc filter board is connected between upper fixed plate and lower fixed plate, and the periphery of arc filter board is equipped with the water baffle cover, be equipped with sand extraction mechanism in sand collection groove, be equipped with pumping mechanism in pumping area, and the left side middle part of water storage tank is communicated with municipal pipeline through overflow pipe in upper position, and the horizontal height of overflow pipe is lower than the horizontal height of lower fixed plate.

[0007] As a further improvement of the utility model, the roof rainwater collection system includes a roof rainwater collector and a roof rainwater pipe. The roof rainwater collector is located at the top of the roof. One end of the roof rainwater pipe is communicated with the roof rainwater collector, and the other end is communicated with the first water inlet.

[0008] As a further improvement of the utility model, a first check valve is arranged on the roof rainwater pipe near the water storage tank.

[0009] As a further improvement of the utility model, the ground rainwater collection system includes a planting soil layer, a sand layer and a gravel water layer arranged in sequence from top to bottom on the ground. A perforated drain pipe is arranged in the gravel water layer. One end of the perforated drain pipe is communicated with the second water inlet.

[0010] As a further improvement of the utility model, a second check valve is arranged on the perforated drain pipe near the water storage tank.

[0011] As a further improvement of the utility model, a fifth check valve, a signal butterfly valve and an electric floating ball valve are arranged on the overflow pipe.

[0012] As a further improvement of the utility model, the sand extraction mechanism includes a sewage submersible pump, and the sewage submersible pump is communicated with a sand pipeline.

[0013] As a further improvement of the utility model, the sewage pump comprises a main sewage pump and a standby sewage pump, the main sewage pump is communicated with the sand pumping pipeline through a first sewage branch pipe, the standby sewage pump is communicated with the sand pumping pipeline through a second sewage branch pipe, and the first sewage branch pipe and the second sewage branch pipe are both provided with a third check valve and a gate valve.

[0014] As a further improvement of the utility model, the water pumping mechanism comprises a water pump, and the water pump is connected with the water pumping pipeline.

[0015] As a further improvement of the utility model, the water pump comprises a main water pump and a standby water pump, the main water pump is communicated with the water pumping pipeline through a first water pumping branch pipe, the standby water pump is communicated with the water pumping pipeline through a second water pumping branch pipe, and the first water pumping branch pipe and the second water pumping branch pipe are both provided with a fourth check valve and a stop valve.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. By setting the lower fixed plate and the arc-shaped filter plate in the water storage tank, the arc-shaped filter plate is arranged in an arc shape, the impurities in the rainwater entering the water storage tank fall onto the lower fixed plate below the arc-shaped filter plate through water flow impact and gravity, the filtered material can be gathered to one side of the lower fixed plate, accumulation of the filtered material on the arc-shaped filter plate is avoided, the function of automatically cleaning the arc-shaped filter plate is achieved, the smoothness of the arc-shaped filter plate is higher, the clogging of the arc-shaped filter plate is reduced, the passing efficiency of the filter plate is improved, and the cleaning frequency of the filtering mechanism is reduced. In addition, the lower fixed plate is arranged, manual periodic cleaning of the impurities is facilitated. In addition, the sand collecting groove is arranged in the middle of the water storage tank, the left side of the water storage tank in the sand collecting groove is arranged as a water inlet area, the right side of the water storage tank in the sand collecting groove is arranged as a water pumping area, the bottom height of the water pumping area is higher than that of the water inlet area, the water storage tank is reasonably arranged through the water inlet area, the sand collecting groove and the water pumping area, and itself becomes a sand filtering structure, and is arranged in a partitioned mode with the arc-shaped filter plate, so that the rainwater is filtered by the arc-shaped filter plate first, then is deposited in the water inlet area, the sand deposited in the water inlet area flows into the lower sand collecting groove, then, the water is pumped out from the water pumping area for recycling, the overall filtering efficiency is improved, and the clogging possibility in the filtering process is reduced.

[0018] In addition, the overflow pipe is arranged on the water storage tank, so that when the rainwater in the water storage tank is excessive, the rainwater in the water storage tank is discharged to the municipal pipeline through the overflow pipe, and the rainwater in the water storage tank is prevented from overflowing to the outside, thereby preventing the rainwater from flowing back.

[0019] 2. By setting the ground rainwater collection system as planting soil layer, sand layer and gravel water layer from top to bottom, the gravel water layer is provided with perforated drainage pipe, the planting soil layer, sand layer and gravel water layer can layer by layer filter the rainwater on the ground, the filtered rainwater flows into the water storage tank through the perforated drainage pipe, the cleanliness of the rainwater flowing into the water storage tank is improved, and the filtering pressure of the water storage tank is shared.

[0020] 3. By setting the silt removal mechanism as the structure of the sewage pump and the sand pumping pipeline, the silt can be pumped away. The sewage pump is set as the structure of the main sewage pump and the standby sewage pump, so as to cope with the situation that the silt is too much and is not cleaned in time and the situation that the main sewage pump is damaged, and the third check valve and the gate valve are set to prevent the silt from flowing back.

[0021] 4. By setting the water pumping mechanism as the structure of the water pump and the water pumping pipeline, the treated rainwater can be pumped away for recycling. The water pump is set as the structure of the main water pump and the standby water pump, so as to cope with the situation that the rainwater is not pumped in time and the situation that the main water pump is damaged, and the fourth check valve and the stop valve are set to prevent the rainwater from flowing back. BRIEF DESCRIPTION OF DRAWINGS

[0022] The utility model will be further described below in combination with the drawings:

[0023] Figure 1 It is the structural schematic diagram of prior art;

[0024] Figure 2 It is the structural schematic diagram of the utility model;

[0025] Figure 3 It is the structural schematic diagram of ground rainwater collection system;

[0026] Figure 4 It is the structural schematic diagram of filter piece;

[0027] Figure 5 It is Figure 2 The enlarged view at A;

[0028] Figure 6 It is the structural schematic diagram of silt removal mechanism;

[0029] Figure 7 It is Figure 2 The enlarged view at B;

[0030] Figure: 1. Roof rainwater collection system; 11. Roof rainwater gutter; 12. Roof rainwater pipe; 13. First check valve; 2. Ground rainwater collection system; 21. Planting soil layer; 22. Sand layer; 23. Gravel layer; 24. Perforated drain pipe; 25. Second check valve; 3. Reservoir; 31. Sediment collection trough; 32. Water inlet area; 33. Pumping area; 34. First water inlet; 35. Second water inlet; 4. Filter element; 41. Support element; 42. Upper fixing plate; 43. Lower fixing plate; 44. Curved filter plate ; 45. Water baffle cover; 5. Sediment extraction mechanism; 51. Main submersible sewage pump; 52. Sand extraction pipeline; 53. Spare submersible sewage pump; 54. First submersible sewage branch pipe; 55. Second submersible sewage branch pipe; 56. Third check valve; 57. Gate valve; 6. Pumping mechanism; 61. Main water pump; 62. Spare water pump; 63. First water pumping branch pipe; 64. Pumping pipeline; 65. Second water pumping branch pipe; 66. Fourth check valve; 67. Stop valve; 7. Overflow pipe; 71. Electric float valve; 72. Signal butterfly valve; 73. Fifth check valve. DETAILED DESCRIPTION

[0031] The following is combined with Figures 2-7 The present invention will be described in further detail. For a clearer illustration, only the structures related to the present invention are shown in the figures.

[0032] For the convenience of description, the coordinate system is defined as follows Figure 2 As shown, the left-right direction is the horizontal direction, the front-back direction is the longitudinal direction, and the up-down direction is the vertical direction.

[0033] The present invention discloses a rainwater recycling and treatment system for a factory area. Figure 2 A factory rainwater recycling and treatment system includes a roof rainwater collection system 1, a ground rainwater collection system 2 and a water reservoir 3. The roof rainwater collection system 1 includes a roof rainwater gutter 11 and a roof rainwater pipe 12. The roof rainwater gutter 11 is located on the top of the roof. One end of the roof rainwater pipe 12 is connected to the roof rainwater gutter 11, and the other end is connected to the first water inlet 34. In addition, a first check valve 13 is provided on the roof rainwater pipe 12 on the side close to the water reservoir 3.

[0034] In addition, if Figure 3 As shown, the ground rainwater collection system 2 includes a planting soil layer 21, a sand layer 22 and a gravel water layer 23 arranged on the ground in sequence from top to bottom. A perforated drainage pipe 24 is provided in the gravel water layer 23, and one end of the perforated drainage pipe 24 is connected to the second water inlet 35; the planting soil layer 21, the sand layer 22 and the gravel water layer 23 can perform layered filtration treatment on the rainwater on the ground, and the filtered rainwater flows into the water reservoir 3 through the perforated drainage pipe 24, thereby improving the cleanliness of the rainwater flowing into the water reservoir 3 and sharing the filtration pressure of the water reservoir 3. In addition, asFigure 2 As shown, a second check valve 25 is provided on the perforated drain pipe 24 at a side close to the water reservoir 3 .

[0035] like Figure 2 As shown, a downwardly concave sediment collection trough 31 is provided on the middle side of the bottom of the water reservoir 3, a water inlet area 32 is set on the left side of the sediment collection trough 31 of the water reservoir 3, and a pumping area 33 is set on the right side of the sediment collection trough 31 of the water reservoir 3. The bottom height of the pumping area 33 is higher than the bottom height of the water inlet area 32, and the bottom height of the water inlet area 32 is higher than the height of the sediment collection trough 31. The upper left side of the water reservoir 3 is connected to the roof rainwater collection system 1 through the first water inlet 34, and the upper left side of the water reservoir 3 is connected to the ground rainwater collection system 2 through the second water inlet 35. A filter element 4 is provided below the first water inlet 34 and the second water inlet 35 in the water reservoir 3. Figure 4 As shown, the filter element 4 includes a support member 41, an upper fixing plate 42 is provided on the left side of the support member 41, and a lower fixing plate 43 is provided on the right side of the support member 41. The upper fixing plate 42 is higher than the lower fixing plate 43, and an arc-shaped filter plate 44 is connected between the upper fixing plate 42 and the lower fixing plate 43. A water baffle cover 45 is provided around the arc-shaped filter plate 44. The water baffle cover 45 is provided on the left side of the support member 41. Figure 2 It is indicated in FIG. 1 to prevent rainwater from directly entering the water reservoir 3 without being filtered.

[0036] like Figure 2 As shown, the sediment collection tank 31 is provided with a sediment extraction mechanism 5, specifically, as shown in FIG. Figure 6 As shown, the silt extraction mechanism 5 includes a submersible sewage pump, which is connected to a sand extraction pipe 52. When in operation, the submersible sewage pump can extract and discharge silt. In addition, the submersible sewage pump includes a main submersible sewage pump 51 and a backup submersible sewage pump 53. The main submersible sewage pump 51 is connected to the sand extraction pipe 52 via a first submersible sewage branch pipe 54, and the backup submersible sewage pump 53 is connected to the sand extraction pipe 52 via a second submersible sewage branch pipe 55. The first submersible sewage branch pipe 54 and the second submersible sewage branch pipe 55 are both provided with a third check valve 56 and a gate valve 57, so as to deal with the situation where excessive silt is not cleaned in time and the main submersible sewage pump 51 is damaged. The provision of the third check valve 56 and the gate valve 57 prevents silt from flowing back.

[0037] like Figure 2 As shown, the pumping area 33 is provided with a pumping mechanism 6, specifically, as Figure 7As shown, the water pumping mechanism 6 includes a water pumping pump connected with a water pumping pipeline 64, so that the treated rainwater can be pumped away for recycling. In addition, the water pumping pump includes a main water pumping pump 61 and a standby water pumping pump 62, the main water pumping pump 61 is communicated with the water pumping pipeline 64 through a first water pumping branch pipe 63, the standby water pumping pump 62 is communicated with the water pumping pipeline 64 through a second water pumping branch pipe 65, the fourth check valve 66 and the stop valve 67 are arranged on the first water pumping branch pipe 63 and the second water pumping branch pipe 65, so as to prevent the situation that the rainwater is not pumped in time and the situation that the main water pumping pump 61 is damaged, in addition, the arrangement of the fourth check valve 66 and the stop valve 67 prevents the rainwater from flowing back.

[0038] In addition, as Figure 2 As shown, the upper left side of the middle part of the water storage tank 3 is communicated with the municipal pipeline through the overflow pipe 7, the horizontal height of the overflow pipe 7 is lower than the horizontal height of the lower fixed plate 43, by arranging the overflow pipe 7 on the water storage tank 3, when the rainwater in the water storage tank 3 is too much, the rainwater in the water storage tank 3 is discharged to the municipal pipeline through the overflow pipe 7, so as to avoid the rainwater in the water storage tank 3 overflowing to the outside and causing the rainwater to flow back. In addition, as Figure 5 As shown, the overflow pipe 7 is provided with a fifth check valve 73, a signal butterfly valve 72 and an electric floating ball valve 71, when the water storage tank 3 is filled with too much water, the electric floating ball valve 71 is monitored, the signal butterfly valve 72 is opened, and the rainwater flows to the urban rainwater pipeline network through the municipal rainwater pipeline, the third check valve 56 is arranged to prevent the municipal rainwater from flowing back to the water storage tank 3.

[0039] The implementation principle of the utility model is that the roof rainwater pipe 12 in the roof collecting system transports the rainwater collected by the roof rainwater bucket 11 into the water storage tank 3, and the ground collecting system collects the rainwater and filters the rainwater layer by layer, and then transports the rainwater into the water storage tank 3 through the perforated drain pipe 24, the rainwater entering the water storage tank 3 falls on the arc-shaped filter plate 44 and is filtered by the arc-shaped filter plate 44, the filtered rainwater enters the water inlet area 32 of the water storage tank 3, the silt deposited in the water inlet area 32 enters the silt collecting groove 31 and is pumped out of the external by the silt pump in the silt collecting groove 31, and the deposited and filtered rainwater enters the water pumping area 33 and is pumped away by the water pumping pump through the water pumping pipe for recycling.

[0040] The technical effect of the utility model is: through setting the lower fixed plate 43 and the arc-shaped filter plate 44 in the water storage pool 3, the arc-shaped setting of the arc-shaped filter plate 44 makes the impurities in the rainwater entering the water storage pool 3 fall on the lower fixed plate 43 under the arc-shaped filter plate 44 through water flow impact and gravity effect, can make the filter material gather to one side of the lower fixed plate 43, avoid the filter material to accumulate on the arc-shaped filter plate 44, play the role of automatic cleaning arc-shaped filter plate 44, higher guarantee the unobstructedness of arc-shaped filter plate 44, reduce the blockage of arc-shaped filter plate 44, improve the passing efficiency of filter plate, reduce the cleaning frequency of filter mechanism.

[0041] In the description of the utility model, it is necessary to explain that, unless there is definite and limited, the term "installation", "connection", "connect" should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integrally connected, can be mechanical connection, also can be electrical connection, can be directly connected, also can be indirectly connected through intermediate medium, can be the intercommunication of two elements inside. For ordinary skilled person in the art, the specific meaning of the above-mentioned terms in the utility model can be understood according to specific circumstances. It should be understood that the specific embodiments described herein are only for understanding the utility model and not for limiting the utility model, and all other embodiments obtained by ordinary skilled person in the art without making creative labor belong to the scope of the utility model protection.

Claims

1. A plant site rainwater recycling system comprising a roof rainwater collection system, a ground rainwater collection system and a storage tank, characterised in that: The bottom of the reservoir is provided with a downwardly recessed sediment collection groove, the left side of the reservoir is provided with a water inlet area at the left side of the sediment collection groove, the right side of the reservoir is provided with a water pumping area at the right side of the sediment collection groove, the bottom height of the water pumping area is higher than the bottom height of the water inlet area, and the bottom height of the water inlet area is higher than the height of the sediment collection groove, the upper left side of the reservoir is communicated with a roof rainwater collection system through a first water inlet, the upper left side of the reservoir is communicated with a ground rainwater collection system through a second water inlet, a filter is arranged below the first water inlet and the second water inlet in the reservoir, the filter comprises a support, an upper fixing plate is arranged on the left side of the support, a lower fixing plate is arranged on the right side of the support, the upper fixing plate is higher than the lower fixing plate, and an arc-shaped filter plate is connected between the upper fixing plate and the lower fixing plate, a water baffle cover is arranged around the arc-shaped filter plate, a sediment pumping mechanism is arranged in the sediment collection groove, a water pumping mechanism is arranged in the water pumping area, and the upper left side of the reservoir is communicated with a municipal pipeline through an overflow pipe, the horizontal height of the overflow pipe is lower than the horizontal height of the lower fixing plate.

2. The plant yard rainwater recycling treatment system according to claim 1, characterized in that: The roof rainwater collection system comprises a roof rainwater collector and a roof rainwater pipe, the roof rainwater collector is arranged at the top of the roof, and the roof rainwater pipe is communicated with the roof rainwater collector at one end and communicated with the first water inlet at the other end.

3. A factory rainwater recycling treatment system according to claim 2, characterized in that: A first check valve is arranged on the roof rainwater pipe near the reservoir.

4. The plant yard rainwater recycling treatment system according to claim 1, characterized in that: The ground rainwater collection system comprises, from top to bottom, a planting soil layer, a sand layer and a gravel water layer arranged on the ground, and a perforated drain pipe is arranged in the gravel water layer, and one end of the perforated drain pipe is communicated with the second water inlet.

5. A factory rainwater recycling treatment system according to claim 4, characterized in that: A second check valve is arranged on the perforated drain pipe near the reservoir.

6. The plant yard rainwater recycling treatment system according to claim 1, characterized in that: A fifth check valve, a signal butterfly valve and an electric floating ball valve are arranged on the overflow pipe.

7. The plant yard rainwater recycling treatment system according to claim 1, characterized in that: The sediment pumping mechanism comprises a sewage pump, and the sewage pump is communicated with a sand pumping pipeline.

8. A factory rainwater recycling treatment system according to claim 7, characterized in that: The sewage pump comprises a main sewage pump and a standby sewage pump, the main sewage pump is communicated with the sand pumping pipeline through a first sewage branch pipe, the standby sewage pump is communicated with the sand pumping pipeline through a second sewage branch pipe, and the first sewage branch pipe and the second sewage branch pipe are both provided with a third check valve and a gate valve.

9. The plant yard rainwater recycling treatment system according to claim 1, characterized in that: The water pumping mechanism comprises a water pumping pump, and the water pumping pump is connected with a water pumping pipeline.

10. The plant rainwater recycling system of claim 9, wherein: The water pumping pump comprises a main water pumping pump and a standby water pumping pump, the main water pumping pump is communicated with the water pumping pipeline through a first water pumping branch pipe, the standby water pumping pump is communicated with the water pumping pipeline through a second water pumping branch pipe, and the first water pumping branch pipe and the second water pumping branch pipe are both provided with a fourth check valve and a stop valve.

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