CN201874032U

CN201874032U - System for collecting and utilizing rainwater on roof

Info

Publication number: CN201874032U
Application number: CN2010206440873U
Authority: CN
Inventors: 邓红艳; 王谛; 高宝安; 覃彬芳; 邓三予; 闫国旗; 李晓颖
Original assignee: 王谛
Priority date: 2010-12-07
Filing date: 2010-12-07
Publication date: 2011-06-22
Anticipated expiration: 2020-12-07

Abstract

A system for collecting and utilizing rainwater on a roof comprises a roof rainwater settling surface. Water retaining walls are arranged around the roof rainwater settling surface; a bearing beam is arranged between the roof rainwater settling surface and an open floor; the space between the roof rainwater settling surface and the open floor is formed into an impounding reservoir which is internally provided with a filter layer; an initial filter mouth is arranged on the roof rainwater settling surface; the water intake of the impounding reservoir is communicated with water tanks in rooms at different stages; and an overflow pipe is arranged on the impounding reservoir. The system can well collect and effectively utilize the rainwater on the roof and has the advantages of being simple in structure and capable of saving water and energy and reducing disaster.

Description

Roof rain water collecting utilizes system

Technical field

The utility model relates to the water resources comprehensive utilization technical field, be specifically related to roof rain water collection, store and utilize system.

Background technology

The rainwater resource wide material sources, of reduced contamination, be a kind of good selection as living water use.Data shows: in more than 660 city of China, more than 400 urban water supply deficiency arranged, more than 110 city serious water shortage.Because lack of water, the loss of annual total industrial output value is greatly about 2,000 hundred million yuan." United Nations Water Conference " that held in 1977 once gave a warning to the whole world: the next global crisis after oil crisis is a water.In fact, rainwater compiles on the roof and directly enters sewer and sewage together flows away when raining, and wastes.At present, China urban rainwater is collected and is utilized industry is that all right technically ripe, also is in most cities and explores and the starting stage, and difficulty is collected, stores and utilized to rainwater resource.

Summary of the invention

The utility model will solve rainwater resource and collect, stores and utilize difficult problem, thereby a kind of roof rain water collecting is provided, stores and utilizes system and device.

The purpose of this utility model is achieved in that a kind of roof rain water collecting utilizes system, comprise that the roof sinks the rain face, be provided with waterwall around the heavy rain face in roof, between heavy rain face in roof and Stilt layer, be provided with spandrel girder, space between heavy rain face in roof and the Stilt layer is a reservoir, is provided with filtration beds in the reservoir, and the heavy rain face in roof is provided with the inceptive filtering mouth, the intake of reservoir is communicated with each grading room inner water tank by the rainwater feed pipe, also is provided with bleed off pipe on the reservoir.The reservoir bottom is provided with waterproofing course.The tap water filling pipe is communicated with each grading room inner water tank.

The roof rain water collecting that the utility model provides utilizes system, has following beneficial effect:

(1) easy.Utility model is simple in structure, does not change the architectural style and the integrated planning in existing house, does not also influence the roof and beautifies, builds other comprehensive purposes such as greenery patches, collection solar energy.Newly-built or reconstruction drops into lowlyer by the design, and construction is simple, and water retention capacity is big, and is easy to use.

(2) water saving.Take up an area of (about the same) 450m with common building in heavy rain area ²For example is calculated, 435.3 tons of year collection rainwater can supply 1 year whole sanitary water of 22 families.That is to say a building occupation of land 450m ², seven floor heights are designed at 3 families, a unit, the building at totally 21 families, and the rainwater that its roof is collected can satisfy whole resident families sanitary water demand of the whole year.If expand entire city to, water-saving amount is more considerable.With the Yichang City is example, but simple computation rainwater resource amount: 95 square kilometres of existing built-up area, Yichang City areas, year water supply total amount 10220.82 ten thousand steres.By 1137.9 millimeters/year of 30 average annual rainfalls, runoff coefficient 0.5, rainwater utilization 50% calculates, and can utilize every year rainwater can reach 2700 ten thousand steres (95 * 10 ⁶* 1.1379 * 0.5 * 0.5 cubic metre), approach 1/3rd of entire city year total supply, water saving potential is huge.

(3) energy-conservation.Because the existence of reservoir has reduced the heat in the inlet chamber, detect by test, low about 15 ℃ of the hull-skin temperature on not retaining of the external surface ratio roof on retaining roof, inner surface will hang down about 8 ℃; The retaining roof is keeping under the condition of same interior temperature than not retaining roof in other words, the ratio that can reduce the maximal heat transfer amount in the inlet chamber is about about 2/3, the maximum load that can save cooling systems such as room conditioning is about the last 2/3, it is 1/35 of not retaining roof that the retaining roof on average imports indoor heat into, and this energy-saving effect is very considerable.Simultaneously, aquifer also can be decayed peak load and postpone effectively, and the peak regulation of power consumption is had positive effect.

(4) mitigation.Torrential rain weather summer often appears in southern area, and the runoff that rainfall forms distributes very uneven in the time, and flood season, run-off accounted for annually more than 70%, caused the city serial disasters such as traffic jam, courtyard wall are collapsed, waterlogging to occur.If the city roof rain water is tackled, so just can weaken well flood peak and flood season run-off, reach the purpose that reduces the city flood.

Description of drawings

Below in conjunction with drawings and Examples the utility model is done step explanation:

Fig. 1 is a structural representation of the present utility model.

The specific embodiment

The utility model adopts following structure: a kind of roof rain water collecting utilizes system, comprise that the roof sinks rain face 1, be provided with waterwall 2 around the heavy rain face 1 in roof, between heavy rain face 1 in roof and Stilt layer 7, be provided with spandrel girder 4, space between heavy rain face 1 in roof and the Stilt layer 7 is a reservoir 3, is provided with filtration beds 8 in the reservoir 3, and the heavy rain face 1 in roof is provided with inceptive filtering mouth 9, the intake 5 of reservoir 3 is communicated with each grading room inner water tank 6 by rainwater feed pipe 12, also is provided with bleed off pipe 11 on the reservoir 3.

Reservoir 3 bottoms are provided with waterproofing course 10.Tap water filling pipe 13 is communicated with each grading room inner water tank 6.

In the utility model, the heavy rain face in roof 1 is directly tackled roof rain water, cooperates with waterwall 2, and rainwater is compiled, and flows to reservoir 3 in order by inceptive filtering mouth 9.The heavy rain face 1 in roof adopts roof greening seepage and two kinds of forms of pitched roof direct current to collect rainwater: the roof greening seepage is less than 15 in flat-top or the gradient Rolled roof on artificial bed course, the plantation flowers and plants, rainwater is collected reservoir 3 by seepage, can beautify the environment and reduce the roof runoff, cost is slightly high.The pitched roof direct current is directly collected rainwater by forms such as Dan Po, Shuan Po, four slopes exactly and is injected reservoir 3, and this method can not be removed the pollutant in the rainwater, but compiling costs is low.

Collect rainwater by aqueduct, flow to roof reservoir 3 earlier, classification is according to set position, building washroom and number again, and level is all imported the grading room inner water tank 6 of each washroom, can alleviate the bearing load on roof like this, reduces building costs.Blowoff valve control is established in the bottom of feedwater piping, closes when normally moving, and is only removing contamination and is arranging when becoming silted up and just open.The feedwater piping design is gone up and must be considered water purification pressure and surge pressure, and surge pressure is mainly caused by user's opening and closing valve.

Grading room inner water tank 6 in the washroom is established the water tank retaining, and water tank adopts stainless sheet steel or crosses the zinc thin plate and angle steel weldering system forms, and water tank is bearing on the body of wall by armored concrete slab.Pipe network is made up of feed pipe, intake pipe and jet water spout, and the feed pipe upper end is connected in roof intake 5, and the lower end is connected in each washroom inner water tank, and the pipeline bottommost is established the husky blowoff valve of row.Intake pipe is located between feed pipe and the inner water tank top, washroom.Jet water spout is arranged among the washroom as required, is independently.Because the water supply line import contacts with atmosphere, can carry out tonifying Qi, therefore, each washroom inner water tank does not disturb in use mutually.

Stilt layer 7 of the present utility model can play insulation, heat insulation effect, the spandrel girder 4 between the heavy rain face 1 in roof and the Stilt layer 7 and the system of a safety and stability of 14 formations of the Stilt layer spandrel girders in the Stilt layer 7.

When the rainwater of collecting is not enough, supply water to grading room inner water tank 6 by filling pipe 13, as replenishing of rainwater.

For avoiding the dark design load that surpasses of catchmenting, bleed off pipe 11 is installed, on reservoir 3 to solve roof moment maximum load problem.

The waterproofing course 10 of reservoir 3 bottoms has ensured the generation that reservoir 3 can not produce the seepage phenomenon.

Stain composition by the part that filtration beds 8 can filter in the rainwater, guarantee safe in utilization.

Claims

1. a roof rain water collecting utilizes system, comprise that the roof sinks rain face (1), it is characterized in that: the heavy rain face (1) in roof is provided with waterwall (2) all around, between heavy rain face (1) in roof and Stilt layer (7), be provided with spandrel girder (4), space between heavy rain face (1) in roof and the Stilt layer (7) is reservoir (3), be provided with filtration beds (8) in the reservoir (3), the heavy rain face (1) in roof is provided with inceptive filtering mouth (9), the intake (5) of reservoir (3) is communicated with each grading room inner water tank (6) by rainwater feed pipe (12), also is provided with bleed off pipe (11) on the reservoir (3).

2. roof rain water collecting according to claim 1 utilizes system, it is characterized in that: reservoir (3) bottom is provided with waterproofing course (10).

3. roof rain water collecting according to claim 1 utilizes system, it is characterized in that: tap water filling pipe (13) is communicated with each grading room inner water tank (6).

4. roof rain water collecting according to claim 1 utilizes system, it is characterized in that: be provided with Stilt layer spandrel girder (14) in the Stilt layer (7).