Multi-stage filtering device for treating rainwater

Abstract

The utility model belongs to the technical field of roof rainwater collection and application, and particularly discloses a multi-stage filtering device for treating rainwater. Comprising a filtering box body, a filtering tank, a rainwater inlet, a rainwater outlet, a roof rainwater sewer pipe, a front through groove, a rear through groove, a front filtering plate, a rear filtering plate, a front limiting transverse plate, a rear limiting transverse plate, a transition guide pipe, a water outlet pipe, an upper transition layer and a lower filtering layer. The roof rainwater purification device has the advantages that roof rainwater is directly connected into the filtering box body and the filtering tank, the direct multi-stage purification process is carried out, the treatment time is shortened, the problem that the rainwater is mixed with foreign matter for the second time is solved, meanwhile, secondary extraction is not needed, and electric energy consumption is saved; 2, foreign matters which are possibly mixed in can be crushed, the problem that the front filter plate or the rear filter plate is blocked is avoided, and subsequent purification operation is also facilitated; and 3, corresponding backwashing operation can be carried out on the upper transition layer and the lower filter layer, so that the upper transition layer and the lower filter layer are ensured to complete an efficient rainwater purification effect.

Description

TECHNICAL FIELD

[0001] The utility model belongs to roof rainwater collection application technical field, concretely relates to a multistage filter device for processing rainwater. BACKGROUND

[0002] Rainwater collection is to collect rainwater, after treatment, get the water that meets certain water quality index and reuse process.

[0003] At present, there is secondary collection phenomenon in the collection process of roof rainwater, that is, rainwater is collected in the water storage tank and then filtered, which not only consumes time, but also causes foreign matter to mix in the rainwater, causing trouble for subsequent treatment.

[0004] How to directly filter the downpour in the roof rainwater downpipe in the initial stage of rainwater is a difficulty to be solved at present.

[0005] Therefore, based on the above problems, the utility model provides a multistage filter device for processing rainwater. UTILITY MODEL CONTENT

[0006] The utility model aims at providing a multistage filter device for processing rainwater, solving the problems of long time consumption and multiple procedures in rainwater collection in the prior art.

[0007] Technical scheme: the utility model relates to a multistage filter device for processing rainwater, comprising a filter box body and a filter tank arranged in a ladder type, a rainwater inlet is arranged on the upper portion of one end of the filter box body, a rainwater outlet is arranged on the lower portion of the outer wall of one end of the rainwater inlet, a roof rainwater downpipe is connected to one end of the rainwater inlet, a front through slot and a rear through slot are horizontally arranged in the end face of the upper portion of the filter box body, a front filter plate and a rear filter plate are arranged in the filter box body through the front through slot and the rear through slot, front limiting horizontal plates and rear limiting horizontal plates are arranged on the upper end faces of the front filter plate and the rear filter plate respectively, the front limiting horizontal plates and the rear limiting horizontal plates are used in cooperation with the front through slot and the rear through slot, a transition pipe is arranged on the upper portion of the filter tank and connected with the rainwater outlet, a water outlet pipe is arranged on the lower portion of the filter tank, and an upper transition layer and a lower filter layer are vertically arranged in the filter tank.

[0008] The multistage filter device for processing rainwater also comprises a plurality of vertical overflow partition plates arranged on the inner wall of one end of the filter box body.

[0009] The multistage filter device for processing rainwater also comprises a group of front limiting clamping plates and a group of rear limiting clamping plates arranged on the inner wall of the bottom surface of the middle portion of the filter box body and used in cooperation with the front filter plate and the rear filter plate respectively.

[0010] The multistage filtering device for processing rainwater has the advantages that: 1. The roof rainwater is directly connected to the filtering box and the filtering tank, and a direct multistage purification process is performed, so that the processing time is shortened, the rainwater is not mixed with foreign matters again, the rainwater is not extracted again, and the power energy consumption is saved; 2. The foreign matters mixed in the rainwater can be broken, so that the problems of the front filter plate and the rear filter plate being blocked are avoided, and subsequent purification operations are facilitated; and 3. The upper transition layer and the lower filtering layer can be subjected to corresponding backwashing operations, so that the upper transition layer and the lower filtering layer can achieve high rainwater purification efficiency.

[0011] The multistage filtering device for processing rainwater has the advantages that: 1. The roof rainwater is directly connected to the filtering box and the filtering tank, and a direct multistage purification process is performed, so that the processing time is shortened, the rainwater is not mixed with foreign matters again, the rainwater is not extracted again, and the power energy consumption is saved; 2. The foreign matters mixed in the rainwater can be broken, so that the problems of the front filter plate and the rear filter plate being blocked are avoided, and subsequent purification operations are facilitated; and 3. The upper transition layer and the lower filtering layer can be subjected to corresponding backwashing operations, so that the upper transition layer and the lower filtering layer can achieve high rainwater purification efficiency.

[0012] The multistage filtering device for processing rainwater has the advantages that: 1. The roof rainwater is directly connected to the filtering box and the filtering tank, and a direct multistage purification process is performed, so that the processing time is shortened, the rainwater is not mixed with foreign matters again, the rainwater is not extracted again, and the power energy consumption is saved; 2. The foreign matters mixed in the rainwater can be broken, so that the problems of the front filter plate and the rear filter plate being blocked are avoided, and subsequent purification operations are facilitated; and 3. The upper transition layer and the lower filtering layer can be subjected to corresponding backwashing operations, so that the upper transition layer and the lower filtering layer can achieve high rainwater purification efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments. Obviously, the drawings described below only show some of the embodiments of the present application, and other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0014] Figure 1 is a front view structural schematic diagram of the multistage filtering device for processing rainwater of the present application;

[0015] Figure 2 is a top view structural schematic diagram of the filtering box, the front through slot, the rear through slot and the like of the multistage filtering device for processing rainwater of the present application;

[0016] Figure 3 is a front view structural schematic diagram of the front limiting transverse plate, the front filter plate or the rear filter plate and the rear limiting transverse plate of the multistage filtering device for processing rainwater of the present application.

[0017] Figure 4 is a front limiting horizontal plate, a front filter plate or a rear filter plate, and a rear limiting horizontal plate of a multi-stage filtering device for treating rainwater according to the utility model, a top view structural schematic diagram;

[0018] Figure 5 is a front limiting horizontal plate, a front filter plate or a rear filter plate, and a rear limiting horizontal plate of a multi-stage filtering device for treating rainwater according to the utility model, a top view structural schematic diagram;

[0019] In the figure, the serial numbers are as follows: 100-filtering box body, 101-rainwater inlet, 102-rainwater outlet, 103-rooftop rainwater downcomer, 10-front through groove, 11-rear through groove, 12-front limiting clamping plate, 13-rear limiting clamping plate, 14-backflushing water outlet guide pipe, 15-front limiting horizontal plate, 16-front filter plate, 17-rear filter plate, 18-rear limiting horizontal plate, 19-vertical overflow partition plate, 20-filtering tank, 21-transition guide pipe, 22-upper transition layer, 23-lower filtering layer, 24-water outlet pipe, 25-bottom base plate, 26-motor frame, 27-motor, 28-coupling, 29-bearing seat, 30-rotating shaft, 31-crushing blade, 32-backflushing pump, 33-backflushing water guide pipe, 34-backflushing water inlet, 35-backflushing water outlet, 36-backflushing water outlet, 37-water delivery pipe. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the utility model will be apparently and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all the other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0021] In the description of the utility model, it is necessary to explain that the terms "top", "bottom", "one side", "the other side", "front", "back", "intermediate position", "interior", "top end", "bottom end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model; the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance; in addition, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0022] The utility model is further illustrated below in combination with the drawings and specific embodiments.

[0023] Embodiment one

[0024] As Figure 1 , Figure 2 , Figure 3 And Figure 4 A multi-stage filtering device for treating rainwater, comprising a filtering box body 100 and a filtering tank 20 arranged in a stepped manner,

[0025] The upper part of one end of the filtering box body 100 is externally provided with a rainwater inlet 101,

[0026] The lower part of one end of the rainwater inlet 101 is externally provided with a rainwater outlet 102,

[0027] One end of the rainwater inlet 101 is connected with a roof rainwater downpipe 103,

[0028] The upper part of one end of the filtering box body 100 is internally provided with a front through slot 10 and a rear through slot 11 horizontally,

[0029] The filtering box body 100 is internally provided with a front filter plate 16 and a rear filter plate 17 through the front through slot 10 and the rear through slot 11,

[0030] The upper end face of the front filter plate 16 and the rear filter plate 17 is respectively provided with a front limiting horizontal plate 15 and a rear limiting horizontal plate 18 matched with the front through slot 10 and the rear through slot 11,

[0031] The upper part of the filtering tank 20 is provided with a transition pipe 21 connected with the rainwater outlet 102,

[0032] The lower part of the filter tank 20 is provided with a water outlet pipe 24,

[0033] The upper transition layer 22 and the lower filter layer 23 are vertically arranged in the filter tank 20.

[0034] The front filter plate 16 and the rear filter plate 17 are respectively plate-type filter plates with filter holes, which are used for primary and secondary filtering of foreign matters and the like possibly mixed in the roof rainwater. The upper transition layer 22 is a cobblestone layer, which is used for tertiary purification filtering of the rainwater after the secondary filtering. The lower filter layer 23 is an activated carbon layer, which is used for adsorption-type purification filtering of the rainwater after the tertiary treatment and purification filtering.

[0035] The working principle is as follows: the rainwater directly enters the filter box body 100 through the rainwater inlet 101 connected with the roof rainwater downpipe 103, and after the secondary primary filtering by the front filter plate 16 and the rear filter plate 17, the rainwater enters the filter tank 20 through the rainwater outlet 102 and the transition conduit 21. At this time, the upper transition layer 22 and the lower filter layer 23 perform vertical secondary purification filtering on the rainwater.

[0036] When the overall structure is subjected to multi-stage filtering, no external force and no energy consumption are required, and the power energy cost is saved.

[0037] In addition, the multi-stage filtering device preferably used for treating rainwater further comprises a plurality of vertical overflow partitions 19 arranged on the inner wall of one end of the filter box body 100; wherein the vertical overflow partitions 19 form a stepped type, and the height dimension gradually decreases from the rear filter plate 17 to the rainwater outlet 102, thereby playing a function of sedimentation and purification.

[0038] In addition, the multi-stage filtering device preferably used for treating rainwater further comprises a group of front limiting clamping plates 12 and a group of rear limiting clamping plates 13 arranged on the inner wall of the bottom surface of the middle part of the filter box body 100 and used in cooperation with the front filter plate 16 and the rear filter plate 17, respectively.

[0039] The two surfaces of the front filter plate 16 abut against the opposite surfaces of the group of front limiting clamping plates 12, and the two surfaces of the rear filter plate 17 abut against the opposite surfaces of the group of rear limiting clamping plates 13, so as to realize the fixation during the convenient assembly of the front filter plate 16 and the rear filter plate 17 or the convenient operation during the cleaning or replacement.

[0040] Embodiment Two

[0041] Based on Embodiment 1, the multi-stage filtration device for treating rainwater further includes a set of base plates 25 disposed on the other end face of the filter housing 100, a motor frame 26 disposed on the set of base plates 25, a motor 27 disposed on the motor frame 26, a bearing seat 29 disposed between the set of base plates 25, a coupling 28 disposed on the motor 27, a rotating shaft 30 disposed inside the filter housing 100 and connected to the coupling 28 through the bearing seat 29 at one end, and a plurality of breaking blades 31 disposed on the rotating shaft 30.

[0042] It is mainly used to crush any foreign objects that may be mixed in, so as to prevent them from clogging the front filter plate 16 and the rear filter plate 17, and also to facilitate the purification operation of the upper transition layer 22 and the lower filter layer 23.

[0043] Example 3

[0044] Based on Example 1 or Example 2, such as Figure 5 The multi-stage filtration device for treating rainwater shown also includes a backwash water inlet 35 disposed on the lower outer wall of the filter tank 20, a set of backwash water inlets 34 and a set of backwash water outlets 36 symmetrically disposed on the outer wall of the filter tank 20 and located vertically upward from the upper transition layer 22 and the lower filter layer 23, a backwash water conduit 33 connected to the set of backwash water inlets 34 and the set of backwash water outlets 36 respectively, a backwash water outlet conduit 14 disposed on the backwash water inlet 35, a backwash pump 32 (high pressure pump) disposed on one side of the filter tank 20 and connected to the backwash water conduit 33 and the backwash water outlet conduit 14 respectively, and a water supply pipe 37 connected to the set of backwash water outlets 36 respectively, one end of the water supply pipe 37 being connected to a sedimentation tank.

[0045] When backwashing of the upper transition layer 22 and the lower filter layer 23 is required (when rainwater purification stops and there is "no rain"), the backwash pump 32 is started. At this time, the residual purified rainwater in the filter tank 20 enters the filter tank 20 through the backwash water inlet 35, the backwash water outlet pipe 14, the backwash water pipe 33, and a set of backwash water inlets 34 to perform high-pressure rinsing on the surfaces of the upper transition layer 22 and the lower filter layer 23. At the same time, the high-pressure rinsing is discharged through a set of backwash water outlets 36 and water supply pipes 37.

[0046] It should be noted that, in this document, terms such as "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] It will be apparent to those skilled in the art that the application is not limited to the details of the above-exemplified embodiments and that the application can be implemented in other concrete forms without departing from the spirit or essential characteristics of the application. The presently disclosed embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the application being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. No feature of the application is to be construed as limiting the application to a specific embodiment unless otherwise explicitly claimed.

Claims

1. A multi-stage filtering device for treating rainwater, comprising a filtering box (100) and a filtering tank (20) arranged in a stepped manner, characterized in that: an upper outer wall of one end of the filtering box (100) is provided with a rainwater inlet (101), an outer wall of a lower end of the rainwater inlet (101) is provided with a rainwater outlet (102), a roof rainwater downpipe (103) is connected to one end of the rainwater inlet (101), a front through slot (10) and a rear through slot (11) are horizontally arranged in an upper end face of one end of the filtering box (100), a front filter plate (16) and a rear filter plate (17) are arranged in the filtering box (100) through the front through slot (10) and the rear through slot (11), upper end faces of the front filter plate (16) and the rear filter plate (17) are respectively provided with a front limiting transverse plate (15) and a rear limiting transverse plate (18) matched with the front through slot (10) and the rear through slot (11), an upper transition layer (22) and a lower filtering layer (23) are vertically arranged in the filtering tank (20). The multi-stage filtering device for treating rainwater further comprises a plurality of vertical overflow partitions (19) arranged on an inner wall of one end of the filtering box (100). The multi-stage filtering device for treating rainwater further comprises a group of front limiting clamping plates (12) and a group of rear limiting clamping plates (13) arranged on inner walls of bottom surfaces of middle portions of the filtering box (100) and matched with the front filter plate (16) and the rear filter plate (17) respectively. The multi-stage filtering device for treating rainwater further comprises a group of bottom base plates (25) arranged on an end face of the other end of the filtering box (100), a motor frame (26) arranged on the group of bottom base plates (25), a motor (27) arranged on the motor frame (26), a bearing seat (29) arranged between the group of bottom base plates (25), a shaft coupling (28) arranged on the motor (27), a rotating shaft (30) arranged in the filtering box (100) and connected to the shaft coupling (28) through the bearing seat (29) at one end, and a plurality of crushing blades (31) arranged on the rotating shaft (30). The multi-stage filtering device for treating rainwater further comprises a backwashing water inlet (35) arranged on an outer wall of a lower portion of the filtering tank (20), a group of backwashing water inlets (34) and a group of backwashing water outlets (36) arranged symmetrically on an outer wall of the filtering tank (20) and vertically above the upper transition layer (22) and the lower filtering layer (23), a backwashing water guide pipe (33) connected to the group of backwashing water inlets (34) and the group of backwashing water outlets (36) respectively, a backwashing water outlet guide pipe (14) arranged on the backwashing water inlet (35), a backwashing pump (32) arranged on one side of the filtering tank (20) and connected to the backwashing water guide pipe (33) and the backwashing water outlet guide pipe (14) respectively, and a water delivery pipe (37) connected to the group of backwashing water outlets (36) respectively. ​ ​ ​ ​ ​ 2. A multi-stage filtration device for treating rainwater according to claim 1, wherein: ​ 3. A multi-stage filtration device for treating rainwater according to claim 1 or 2, wherein: ​ 4. A multi-stage filtration device for treating rainwater according to claim 3, wherein: ​ 5. A multi-stage filtration device for treating rainwater according to claim 4, wherein: ​

Images