CN203452123U

CN203452123U - Rainwater collection and treatment system

Info

Publication number: CN203452123U
Application number: CN201320564944.2U
Authority: CN
Inventors: 薛慧; 曹立志
Original assignee: Beijing Qingshui Eco-Environment Engineering Co Ltd
Current assignee: Beijing Qingshui Eco-Environment Engineering Co Ltd
Priority date: 2013-09-12
Filing date: 2013-09-12
Publication date: 2014-02-26
Anticipated expiration: 2023-09-12

Abstract

The utility model provides a rainwater collection and treatment system. The rainwater collection and treatment system comprises a grill pool, a flow abandoning pool, a PP module combination collecting pool, a filter and an ultraviolet sterilizer which are sequentially connected through a pipeline; rainwater flows through the grill pool through a pipe network, and then flows through the flow abandoning pool after impurities, with the particle size of more than 5mm, in the rainwater are stopped, the rainwater with poor water quality in the initial time can be drained to the sewage collecting pool through the flow abandoning pool, clean rainwater in the intermediate and later periods are drained to the PP module combination collecting pool; a disposed sewage inspection well and a recycling inspection well are arranged in the PP module combination collecting pool at an interval; a sewage blowdown pump delivers sewage, entering the disposed sewage inspection well, into the sewage collecting pool; rainwater entering the recycling inspection well is pumped in the filter through a lifting pump; the rainwater filtered and purified by the filter is sterilized by the ultraviolet sterilizer, and recycled. The rainwater collection and treatment system has the advantages of being water-saving, circulating, economic, little in power consumption, and good in treatment effect, and has social benefits.

Description

Rainwater collecting and treating system

Technical field

The utility model relates to water resource and Environmental Technology field, particularly relates to a kind of rainwater collecting and treating system.

Background technology

From the seventies in last century, countries in the world start to focus on the development and application of Technology of Urban Rainwater Utilization, and build up the demonstration project of different scales.Generally speaking, rainwater utilization development can be divided into the advanced stage that solves the primary stage of living water use, the intermediate stage that solves industrial water and solution ecological water.In three phases, the collection of rainwater, storage and treatment technology are the emphasis of rainwater utilization research always.Rainwater treatment technology mainly comprises roof rain water treatment technology, greenery patches infiltration rainwater treatment technology, rainwater comprehensive treatment technique, rainwater advanced treatment process.The aspects such as rainwater reuse is generally used as and flushes the toilet, carwash, air-conditioning, irrigation and landscape water, for flushing the toilet, the municipal administration such as carwash, irrigation need meet city miscellaneous water water quality standard with the recycle-water that life is used mixedly.The water quality requirement of recycle-water directly affects the selection of rainwater treatment process.

Summary of the invention

The purpose of this utility model is to provide a kind of rainwater collecting and treating system with saving water resource, circulation, economy, power consumption is few, treatment effect is good advantage, and has social benefit.

The technical solution of the utility model is:

Rainwater collecting and treating system, is characterized in that: comprise the grid pond, drainage tank, the combination of PP module collecting pit, strainer and the ultraviolet ray disinfector that by pipeline, are linked in sequence; Rainwater is by the pipe network grid pond of flowing through, and holds back after the impurity that particle diameter in rainwater is greater than 5mm by the pipeline described drainage tank of flowing through, and overflow weir is set in drainage tank, and described drainage tank drains into sewage collecting pool by the poor initial rainfall of water quality; Described drainage tank is discharged to described PP module combination collecting pit by the clean rainfall of intermediary and later stages by pipeline; In described PP module combination collecting pit, interval arranges blowdown manhole and reuse manhole; The dredge pump in the shaft bottom of described blowdown manhole is sent into sewage collecting pool by the sewage that enters described blowdown manhole by blow-off line; The lift pump in the shaft bottom of described reuse manhole pumps into described strainer by the rainwater that enters described reuse manhole; Through the filtration of described strainer, the rainwater of purification by the pipeline ultraviolet ray disinfector of flowing through, reuse after disinfection.

Further,

The pond body of described PP module combination collecting pit is processed with impermeable composite geomembrane.

Described pipeline adopts PE pipe.

Described PP module combination collecting pit is provided with backwashing system, and the water in described PP module combination collecting pit is carried out after backwash, and the water after backwash enters described blowdown manhole, and drains into sewage collecting pool through described dredge pump.

On the pipeline between described strainer and described sterilizer, directional control valve is set, described directional control valve is oppositely sent recycle-water into described strainer, described strainer is carried out to backwash, and sewage and mud described in described backwash after strainer drain into described sewage collecting pool through outlet of sewer and the blow-off line of described strainer.

The advantage of rainwater collecting and treating system of the present utility model is:

(1) construction cost is low, power consumption is few, operating cost is low;

(2) stable, simple to operate, convenient management;

(3) this system works is stable, reliable, energy-conservation.

Accompanying drawing explanation

Fig. 1 is the structural representation of rainwater collecting and treating system of the present utility model.

Description of reference numerals

1 grid pond, 2 sections of dirty grooves, 3 artificial grids, 4 drainage tanks, 5 bleed off pipes, 6PP module combination collecting pit, 7 composite geo-membranes, 8 blowdown manholes, 9 dredge pumps, 10 blow-off lines, 11 reuse manholes, 12 reuse pumps, 13 reuse pipelines, 14 strainers, 15 ultraviolet ray disinfectors, 16 blowdown pipelines, 17 collecting pits, 18 sludge pumps, 19 outlets of sewer

The specific embodiment

Below in conjunction with accompanying drawing, the utility model is described in further detail.

Rainwater collecting and treating system of the present utility model as shown in Figure 1, comprises the grid pond 1, drainage tank 4, the combination of PP module collecting pit 6, strainer 14 and the ultraviolet ray disinfector 15 that by pipeline, are linked in sequence.

Rainwater is by the pipe network grid pond of flowing through, and the other end with respect to water inlet in this grid pond is obliquely installed artificial grid 3, and the impurity that artificial grid 3 is greater than 5mm by particle diameter in rainwater is held back, and the rainwater that has then been trapped impurity flows into drainage tank 4 by pipeline.In drainage tank, arrange overflow weir and/bleed off pipe 5, collection at rainwater utilizes in process, the water quality of initial rainfall is poor, the abandoned stream of rainwater adopts the synchronous abandoned stream mode of overflow weir formula, abandoned stream, overflowing rain water enter sewage collecting pool, the clean rainwater of rainfall intermediary and later stages enters pipeline, flows to PP module combination collecting pit 6.In PP module combination collecting pit, interval arranges blowdown manhole 8 and reuse manhole 11; The dredge pump 9 in the shaft bottom of blowdown manhole is sent into sewage collecting pool 17 by the sewage that enters blowdown manhole by blow-off line 10; The lift pump 12 in the shaft bottom of reuse manhole pumps into strainer 14 by the rainwater that enters reuse manhole by reuse pipeline 13; Through the filtration of strainer, the rainwater of purification by the pipeline ultraviolet ray disinfector 15 of flowing through, carry out disinfection by ultraviolet light process after reuse, the rainwater of reuse can be for such as greening water etc.

In this example, the pond body of PP module combination collecting pit is processed with impermeable composite geomembrane, to prevent the seepage of the rainwater of Chi Tizhong.

In this example, pipeline used all adopts PE pipe, and anticorrosion antiwear performance is good, long service life.

In this example, PP module combination collecting pit 6 is provided with backwashing system, and the water in PP module combination collecting pit is carried out after backwash, and the water after backwash enters blowdown manhole 8, and drains into sewage collecting pool 17 through dredge pump 9.

Strainer is after operation a period of time, and the pollutant of holding back can stop up the space of filtrate, and disposal ability declines, and therefore needs regularly strainer to be carried out to backwash.

In this example, on the pipeline between strainer and ultraviolet ray disinfector, directional control valve is set, by directional control valve, recycle-water is oppositely sent into strainer, strainer is carried out to backwash, and the sewage after backwash institute filter and mud drain into sewage collecting pool 17 through outlet of sewer 19 and the blowdown pipeline 16 of filter.

Above-mentionedly only the specific embodiment of the utility model is illustrated; but be not that protection domain of the present utility model is done to any pro forma restriction; every equivalence of making according to the design spirit in the utility model changes or modifies, and all should think and fall into protection domain of the present utility model.

Claims

1. rainwater collecting and treating system, is characterized in that: comprise the grid pond, drainage tank, the combination of PP module collecting pit, strainer and the ultraviolet ray disinfector that by pipeline, are linked in sequence; Rainwater is by the pipe network grid pond of flowing through, and holds back after the impurity that particle diameter in rainwater is greater than 5mm by the pipeline described drainage tank of flowing through, and in described drainage tank, overflow weir is set, and described drainage tank drains into sewage collecting pool by the poor initial rainfall of water quality; Described drainage tank is discharged to described PP module combination collecting pit by the clean rainfall of intermediary and later stages by pipeline; In described PP module combination collecting pit, interval arranges blowdown manhole and reuse manhole; The dredge pump in the shaft bottom of described blowdown manhole is sent into sewage collecting pool by the sewage that enters described blowdown manhole by blow-off line; The lift pump in the shaft bottom of described reuse manhole pumps into described strainer by the rainwater that enters described reuse manhole; Through the filtration of described strainer, the rainwater of purification by the pipeline ultraviolet ray disinfector of flowing through, reuse after disinfection.

2. rainwater collecting and treating system according to claim 1, is characterized in that: the pond body of described PP module combination collecting pit is processed with impermeable composite geomembrane.

3. rainwater collecting and treating system according to claim 2, is characterized in that: described pipeline adopts PE pipe.

4. rainwater collecting and treating system according to claim 3, it is characterized in that: described PP module combination collecting pit is provided with backwashing system, water in described PP module combination collecting pit is carried out after backwash, water after backwash enters described blowdown manhole, and drains into sewage collecting pool through described dredge pump.

5. rainwater collecting and treating system according to claim 4, it is characterized in that: on the pipeline between described strainer and described sterilizer, directional control valve is set, described directional control valve is oppositely sent recycle-water into described strainer, described strainer is carried out to backwash, and sewage and mud described in described backwash after strainer drain into described sewage collecting pool through outlet of sewer and the blow-off line of described strainer.