CN207553458U - Ultromotivity automatically cleaning roof rainwater collection processing system device - Google Patents

Abstract

The utility model relates to an automatic power self-cleaning roof rainwater collection and treatment system device, which includes a rainwater bucket, a waste flow support frame, a water delivery pipe, a downpipe, a water storage tank, a water retaining floating ball, an ultraviolet disinfection lamp tube, and a submersible pump , primary filter screen, filter drum, bypass branch rainwater pipe, filter intercepting sewage collection bucket, reservoir inspection port, ventilation overflow pipe, cleaning port, ring float baffle, waste flow container, drum filter box, secondary Grade filter, water collection tank, hook, hook sleeve, lug, handle, curved scraper, the water flow enters through the downpipe, first passes through the waste flow container to intercept and remove the sewage, and then the relatively clean rainwater impacts the filter drum to rotate, At the same time, the arc-shaped scraper scrapes off the dirt adhering to the filter drum, and the dual action of the rotation of the filter drum and the impact of the water flow throws the dirt into the filter and dirt collection bucket, and the rainwater passes through the filter holes of the filter drum and other layers. Filtered into the reservoir, this device realizes automatic power self-cleaning roof rainwater collection and treatment.

Description

Automatic power self-cleaning roof rainwater collection and treatment system device

The invention relates to an automatic power self-cleaning roof rainwater collection and treatment system device, which belongs to the field of mechanical devices for life and production.

Background technique

Water is an essential natural resource for human survival and development. my country's water resources are scarce and have the characteristics of uneven temporal and spatial distribution. Calculated according to the population in 2004, China's per capita water resource is 2185m ³ , which is less than one-third of the world's average level. my country has been listed by the United Nations as one of the 13 typical water-poor countries. Water shortage has also become a major factor that seriously restricts the development of my country's national economy and society.

Rainwater is the most fundamental, direct and economical water resource, and an important link in the natural water resource system, which plays a key role in supplementing groundwater sources, improving and protecting the ecological environment. China is rich in rainwater resources, with an annual rainfall of 6.19 trillion m ³ , so rainwater utilization has become an important way to achieve sustainable development of water resources.

In foreign countries, many countries have already started research and utilization of rainwater.

Japan attaches great importance to urban rainwater utilization. For example, the rainwater utilization system of its large baseball stadiums in Tokyo, Tomioka, Osaka and Nagoya, the catchment surface can reach 16,000-35,000 m ³ , the volume of the reservoir is 1,000-2,800 m ³ , and the rainwater is used to flush toilets after sand filtration and disinfection And greening, the annual rainwater utilization of the system can reach more than 30,000 m ³ . By the beginning of this century, Germany has formed the "third generation" rainwater utilization technology and related new standards. In Germany, public rainwater pipes are used to collect rainwater and after simple treatment to meet miscellaneous water standards, it can be used for toilet flushing and garden irrigation in block apartments. In some areas, drinking water can be saved by up to 50%. In the UK, the water storage surface system can use part of the miscellaneous water collected in a local area to alleviate the urban water crisis. For example, with the development of its "water storage ground", the water storage capacity can reach 100L/m ² , and the collected ground rainwater and roof rainwater together become the water source of reclaimed water in the building and are used for toilet flushing. In Denmark, people in urban areas store the collected rainwater in storage tanks after passing through pre-filtering equipment, and use it to flush toilets or wash clothes through float filters when used. Rainwater collected from Danish roofs can reach 22.9 million m ³ per year, which is equivalent to 24% of the current total drinking water production. In addition, other countries in the world, such as Belgium, the Netherlands, the United States, and Singapore, have their own characteristics in terms of rainwater utilization, and they are relatively mature, and the application degree is also extremely extensive and common. demonstration.

Compared with foreign countries, my country's rainwater utilization technology started late, and mainly focused on research and application in water-scarce areas. In recent years, my country has built sponge city demonstration sites in many places to make greater use of rainwater. But generally speaking, my country's rainwater collection and utilization technology is still in the exploratory stage, with less coverage and a big gap with foreign countries.

According to the current situation of rainwater utilization at home and abroad, the utilization value of roof rainwater is considerable. Compared with ground rainwater, roof rainwater has better water quality and is easier to collect. Especially for decentralized single buildings such as courtyard houses and villas, the roof has a large natural rain collection surface and less sediment and debris. It is connected to the ground collection device through the downpipe to facilitate rainwater collection. However, most of the current rainwater harvesting equipment is large-scale equipment for centralized processing, with complex and large structures, mostly buried, inconvenient maintenance and management, and high equipment cost. The cost of collecting ^1m3 of rainwater is about 2,000 yuan. Compared with using tap water, rainwater The collection cost is too high, so it is not accepted by ordinary people, which affects the wide application and popularization of rainwater utilization.

Contents of the invention

In order to solve the above-mentioned technical problems in the prior art, the present invention provides a self-powered self-cleaning roof rainwater collection and treatment system device.

Technical scheme of the present invention is as follows:

Automatic power self-cleaning roof rainwater collection and treatment system device, including rainwater bucket 1, waste flow support frame 2, water delivery pipe 3, downpipe 4, water storage tank 5, water retaining float 6, ultraviolet disinfection lamp 7, submersible pump 8, Primary filter 9, filter drum 10, bypass branch rainwater pipe 11, filter intercepting sewage collection bucket 12, storage tank inspection port 13, ventilation overflow pipe 14, cleaning port 15, annular float baffle 16, discarding flow Container 17, drum filter box 18, secondary filter screen 19, sump 20, grab hook 21, hook sleeve 22, lug 23, handle 24, arc scraper 25,

The downspout 4 is installed vertically along the building wall, and the upper port of the downspout 4 communicates with the rain bucket 1;

The lower end of the downpipe 4 is connected to the waste flow container 17, the bottom of the waste flow container 17 is equipped with a waste flow support frame 2, and the bottom of the waste flow container 17 is also formed with a cleaning port 15 for initially accumulating in the waste flow container 17. Abandonment of turbid rainwater in the flow container 17, a water-retaining float 6 that can float freely after encountering water is placed in the cavity of the flow container 17, and the downpipe 4 is close to the inner wall above the flow container 17 There is a raised annular float baffle 16 on the top, and the sphere diameter of the water retaining float 6 is larger than the pipe diameter at the annular float baffle 16 in the downspout 4, and smaller than the downspout 4 at the same time. lumen diameter;

The downpipe 4 has a through hole at the upper position of the annular float baffle 16, and the through hole is provided with a primary filter 9, and the through hole communicates with one end of the bypass branch rainwater pipe 11, and the bypass branch The other end of the rainwater pipe 11 communicates with the sump 20 in the drum filter box 18;

Simultaneously, the inner walls of the downspout 4 and the bypass branch rainwater pipe 11 are designed as spiral downward rotating pipes to enhance the flow velocity of the rainwater in the water pipes;

The top of the drum filter box 18 is provided with an opening for pulling and inserting the filtering dirt collection bucket 12, and the bottom is equipped with a secondary filter screen 19. The filter drum 10 is designed in a drum shape and is placed in the drum filter box 18 casing. The filter drum 10 is rolled from a small-diameter stainless steel screen, and the filter drum 10 is equipped with the filter intercepting collection bucket 12 and the water collection tank 20;

Lugs 23 and handles 24 are formed on the top surface of the filter and dirt collection bucket 12, and an arc-shaped scraper 25 used in conjunction with the barrel surface of the filter drum 10 is installed at the bottom where it contacts the barrel surface of the filter drum 10. , and the side of the filter intercepting dirt collection bucket 12 in contact with the sump 20 is formed with a hook 21, and the lug 23 limits the opening of the filter dirt intercepting collection bucket 12 on the top of the drum filter box 18 On the plate at the place, the filter and dirt collection bucket 12 is fixed to the drum filter box 18, and the handle 24 is used to lift or put into the filter dirt collection bucket 12, so as to regularly clean the filter Intercept the dirt in the dirt collection bucket 12;

The arc-shaped scraper 25 is close to the filter drum 10, and the distance between the filter drum 10 and the filter drum 10 is no more than 1 mm, and the dirt attached to the filter drum 10 is scraped off when the filter drum 10 rotates, and The scraped dirt is thrown into the filter dirt collection bucket 12 with the rotation of the filter drum 10, and at the same time, the water flow thrown out when the filter drum 10 rotates will also impact the dirt into the filter dirt collector. In the collection bucket 12;

The bottom of the sump 20 is formed with an arc-shaped opening matching the circular barrel surface of the filter drum 10, and the edge of the opening in contact with the barrel surface of the filter drum 10 is equipped with a leak-proof rubber strip It is used to prevent rainwater from leaking; the filter intercepting and collecting bucket 12 communicates with the contact surface of the sump 20, and is used to collect the dirt thrown into the filtering and intercepting collecting bucket 12 when the filter drum 10 rotates; And the said sump 20 is formed with a hook sleeve 22 which fits and inserts with the said hook 21, so that the said filter dirt intercepting collection barrel 12 is fixed with said sump 20, and said sump 20 is connected with said filter Anti-leakage rubber strips are formed on the edge of the contact point of the sewage collection bucket 12;

The rainwater rushes down through the bypass branch rainwater pipe 11 and impacts the filter drum 10 along the tangential direction to make it roll quickly, throwing the dirt in the rainwater or the dirt scraped off by the arc scraper 25 into the filter drum 10. In the filter and interception collection bucket 12, the filtered rainwater flows into the drum filter box 18 through the holes of the filter drum 10, and the dirt enters the filter and interception collection bucket 12;

Filtered rainwater flows into the reservoir 5 after filtering through the secondary filter screen 19 installed at the bottom of the drum filter box 18 again;

The bottom of the reservoir 5 is equipped with an ultraviolet disinfection lamp 7 and a submersible pump 8, the ultraviolet disinfection lamp 7 disinfects the rainwater entering the pool, the submersible pump 8 communicates with the water delivery pipe 3, and the delivery The water pipe 3 communicates with the external water equipment. Meanwhile, the top of the reservoir 5 is equipped with a reservoir inspection port 13 and a ventilation overflow pipe 14 for the overflow of rainwater during maintenance and heavy rain.

Preferably, the filter drum 10 is rolled and surrounded by a stainless steel filter screen (120 mesh), the primary filter screen 9 is a (18 mesh) stainless steel filter screen, and the secondary filter screen 19 is a (120 mesh) stainless steel filter screen , to further improve the filtering effect.

Preferably, the ring-shaped floating ball baffle 16 is a rubber apron to enhance the sealing performance when the two are in contact.

Preferably, the side waist of the sump 20 is an arc-shaped surface to increase its water capacity to accommodate and collect rainwater that flows in from the bypass branch rainwater pipe 11 and has no time to enter the filter drum 10 .

Roof rainwater collection generally includes processes such as rainwater collection, sewage interception, initial waste flow, filtration, regulation and storage. The device of the present invention uses renewable natural energy such as wind energy, potential energy and kinetic energy of falling rainwater as the driving force. Compared with conventional rainwater collection devices, it does not need to use other energy sources such as electricity and coal for driving by using natural energy, which greatly saves energy. Energy, significantly improve the efficiency of rainwater collection, while enhancing the filtering effect, and exempt the daily maintenance of cleaning and backwashing of filter materials.

The rainwater collection treatment situation of system device of the present invention is as follows:

1) The roof rainwater flows from the roof to the roof rainwater gutter, and then flows into the rainwater bucket for rectification and then flows into the downpipe.

2) The rainwater mixed with particles such as stones and silt flows into the waste flow container arranged at the bottom of the downspout in the downspout. As the liquid level rises, the water-retaining floating ball set in the discarding flow container rises to the discarding liquid level, and snaps into the ring-shaped floating ball baffle set at the discarding liquid level to complete the initial discarding. After the rain is over, open the cleaning port at the bottom of the waste flow container for cleaning. This part of the initial waste flow rainwater can be used for irrigation and other uses, and it is also the amount of rainwater that can be recycled.

3) The stainless steel filter screen (18 mesh) is vertically installed on the wall of the downpipe. The relatively clean rainwater after being discarded is filtered once by the large-diameter stainless steel filter screen (18 mesh) and then enters the bypass branch rainwater pipe. Due to the filtered dirt Under the action of gravity and the downward scouring effect of rainwater, it will not accumulate on the stainless steel filter net, effectively avoiding blockage during filtration.

4) The bypass branch rainwater pipe is connected to the sump above the filter drum. The bottom of the sump is arc-shaped, which fits the shape of the filter drum, and one side is connected to the filter sewage collection bucket, and the other side is a curved trapezoid. The rainwater flowing from the branch rainwater pipe enters the sump and impacts the filter drum obliquely along the tangential direction of the filter drum. The filter drum is designed in a drum shape, and the outer wall is rolled with a small-diameter stainless steel filter (120 mesh) and connected to the rotating bearing. The potential energy and kinetic energy of the falling rainwater generate a horizontal tangential force at the filter drum, which drives the filter drum to rotate and relies on centrifugal force to "throw" the dirt trapped by the filter into the filter waste collection bucket, which is close to the filter drum There is an arc-shaped scraper at the center, and the dirt accumulated on the surface of the filter drum is scraped up by the arc-shaped scraper in time when the filter drum is working, relying on the centrifugal force generated by the rotation of the filter drum to "throw" it into the filter interception collection bucket, and the filter interception collection bucket It is a basket-type structure, that is, it is made with a pluggable filter basket, which can be lifted to clean up the dirt; the kinetic energy of the rainwater is used to drive the rotation without clogging, so cleaning and backwashing maintenance are not required; the rainwater enters the filter drum for secondary filtration , when it flows out of the filter drum, it passes through the secondary filter screen and then is filtered for the third time, and then flows into the reservoir.

5) An ultraviolet disinfection lamp tube is installed in the reservoir, and the rainwater entering the pool is disinfected before use. The cistern is equipped with a cistern inspection port for daily cleaning and maintenance, and a ventilation overflow pipe is provided for the overflow of rainwater during heavy rain.

6) The treated clean rainwater is connected to the water pipe by the small submersible pump installed in the reservoir, and can be used for toilet flushing, irrigation, garden watering and car washing, etc.

The system device of the present invention intercepts the rainwater on the roof, discards it at the initial stage, and collects and utilizes it after triple filtration and disinfection. The system device of the invention has the advantages of simple structure, low cost, high rainwater collection efficiency, automatic power cleaning and maintenance, convenient installation and management, and wide application range.

The innovation of the present invention lies in that the downpipe and the bypass branch rainwater pipe are formed with the inner wall of the pipe spirally rotating downward, and the appropriate inclination angle between the bypass branch rainwater pipe and the filter drum (the angle between the bypass branch rainwater pipe and the vertical direction) 45°～60°), the above-mentioned design further increases the potential energy of rainwater and the kinetic energy when it falls, so that the falling rainwater can obtain enough potential energy and kinetic energy to drive the rotation of the filter drum to improve the filtering effect.

The innovation points are described in detail as follows,

1. The integrated design of sewage interception and waste flow, simple and economical equipment, low cost, and convenient maintenance and management; rainwater after waste flow will not be mixed with waste flow rainwater, and the primary filter is installed vertically on the wall of the downpipe to filter the waste water Due to the action of gravity and the downward washing effect of rainwater, the dirt will not accumulate on the net, effectively reducing the blockage of the primary filter.

2. The drum-type self-cleaning swirl filter design uses the kinetic energy of rainwater falling to drive the filter drum to rotate, relying on centrifugal force to intercept dirt and two-stage filtration, the filter screen does not need to be rinsed, the rainwater collection resistance is small, and the collection efficiency is high. One side of the sump is designed as a curved trapezoid, which increases the collection flow, improves the filtration efficiency of rainwater on the filter drum, and reduces water leakage. The filter intercepting and collecting bucket is equipped with a curved scraper, which makes it easier to collect dirt. The rainwater enters the drum for secondary filtration, and passes through the secondary filter for the third filtration when it flows out of the filter drum. The filtration resistance of the method is greatly reduced, and the rainwater collection efficiency is greatly improved.

The automatic power self-cleaning roof rainwater collection and treatment device of the present invention has the advantages of simple structure, low cost, high rainwater collection efficiency, automatic power cleaning maintenance, convenient installation and management, etc. The cost of the whole set of device is about 600 yuan, which is very conducive to market promotion And use, this equipment can effectively collect 95% of roof rainwater, and the collected rainwater can be used for flushing toilets, watering, road and courtyard watering, car washing, etc. Resource shortage problem. Generally speaking, the promotion and use of rainwater harvesting on a large scale is of great significance for reducing rainwater discharge, making rainwater a resource, alleviating the global water resource crisis, reducing energy consumption for tap water treatment and transportation, saving water, saving energy and reducing emissions.

Description of drawings

Figure 1 is an overall schematic diagram of the automatic power self-cleaning roof rainwater collection and treatment system device.

Figure 2 is a partial schematic diagram of the waste flow part of the automatic power self-cleaning roof rainwater collection and treatment system device.

Figure 3 is a partial schematic diagram of the roller filter box of the self-powered self-cleaning roof rainwater collection and treatment system device, wherein A-1 and A-2 are sections respectively.

Fig. 4 is a sectional view A-1 of a part of the drum filter box of the automatic power self-cleaning roof rainwater collection and treatment system device.

Fig. 5 is a sectional view A-2 of a partial schematic diagram of the roller filter box of the automatic power self-cleaning roof rainwater collection and treatment system device.

Fig. 6 is a partial schematic diagram of the water storage tank of the self-powered self-cleaning roof rainwater collection and treatment system.

In Fig. 1-6, 1, rainwater bucket, 2, waste flow supporting frame, 4, downpipe, 5, water storage tank, 6, water retaining float, 7, ultraviolet disinfection lamp tube, 8, submersible pump, 9, one Level filter screen, 10, filter drum, 11, bypass branch rainwater pipe, 12, filter intercepting sewage collection bucket, 13, reservoir inspection port, 14, ventilation overflow pipe, 15, cleaning port, 16, annular floating ball Baffle plate, 17, waste flow container, 18, drum filter box, 19, secondary filter screen, 20, sump, 21, grab hook, 22, hook cover, 23, lug, 24, handle, 25, arc shaped scraper.

Detailed ways

Example 1

my country has a vast territory, and the rainfall in cities in different rainfall time zones varies greatly, and the amount of rainwater that can be collected and utilized will also vary greatly. In this example, three typical rainfall time zones in the south, the northwest, and the north are used to determine the size of the equipment. , and taking Guangzhou, Qinghai, and Yantai as representatives, the sizes are determined respectively according to the design return period of 2 years and the abandonment flow of 5 minutes at the beginning of rainfall.

Taking Yantai area as an example to calculate the size of each equipment in the northern area, similarly calculate the size of equipment in the south and northwest areas.

Automatic power self-cleaning roof rainwater collection and treatment system device, including rainwater bucket 1, waste flow support frame 2, water delivery pipe 3, downpipe 4, water storage tank 5, water retaining float 6, ultraviolet disinfection lamp 7, submersible pump 8, Primary filter 9, filter drum 10, bypass branch rainwater pipe 11, filter intercepting sewage collection bucket 12, storage tank inspection port 13, ventilation overflow pipe 14, cleaning port 15, annular float baffle 16, discarding flow Container 17, drum filter box 18, secondary filter screen 19, sump 20, grab hook 21, hook sleeve 22, lug 23, handle 24, arc scraper 25,

The downspout 4 is installed vertically along the building wall, and the upper port of the downspout 4 communicates with the rain bucket 1;

The lower end of the downpipe 4 is connected to the waste flow container 17, the bottom of the waste flow container 17 is equipped with a waste flow support frame 2, and the bottom of the waste flow container 17 is also formed with a cleaning port 15 for initially accumulating in the waste flow container 17. Abandonment of turbid rainwater in the flow container 17, a water-retaining float 6 that can float freely after encountering water is placed in the cavity of the flow container 17, and the downpipe 4 is close to the inner wall above the flow container 17 There is a raised annular float baffle 16 on the top, and the sphere diameter of the water retaining float 6 is larger than the pipe diameter at the annular float baffle 16 in the downspout 4, and smaller than the downspout 4 at the same time. lumen diameter;

The downpipe 4 has a through hole at the upper position of the annular float baffle 16, and the through hole is provided with a primary filter 9, and the through hole communicates with one end of the bypass branch rainwater pipe 11, and the bypass branch The other end of the rainwater pipe 11 communicates with the sump 20 in the drum filter box 18;

Simultaneously, the inner walls of the downspout 4 and the bypass branch rainwater pipe 11 are designed as spiral downward rotating pipes to enhance the flow velocity of the rainwater in the water pipes;

The top of the drum filter box 18 is provided with an opening for pulling and inserting the filtering dirt collection bucket 12, and the bottom is equipped with a secondary filter screen 19. The filter drum 10 is designed in a drum shape and is placed in the drum filter box 18 casing. The filter drum 10 is rolled from a small-diameter stainless steel screen, and the filter drum 10 is equipped with the filter intercepting collection bucket 12 and the water collection tank 20;

Lugs 23 and handles 24 are formed on the top surface of the filter and dirt collection bucket 12, and an arc-shaped scraper 25 used in conjunction with the barrel surface of the filter drum 10 is installed at the bottom where it contacts the barrel surface of the filter drum 10. , and the side of the filter intercepting dirt collection bucket 12 in contact with the sump 20 is formed with a hook 21, and the lug 23 limits the opening of the filter dirt intercepting collection bucket 12 on the top of the drum filter box 18 On the plate at the place, the filter and dirt collection bucket 12 is fixed to the drum filter box 18, and the handle 24 is used to lift or put into the filter dirt collection bucket 12, so as to regularly clean the filter Intercept the dirt in the dirt collection bucket 12;

The arc-shaped scraper 25 is close to the filter drum 10, and the distance between the filter drum 10 and the filter drum 10 is no more than 1 mm, and the dirt attached to the filter drum 10 is scraped off when the filter drum 10 rotates, and The scraped dirt is thrown into the filter dirt collection bucket 12 with the rotation of the filter drum 10, and at the same time, the water flow thrown out when the filter drum 10 rotates will also impact the dirt into the filter dirt collector. In the collection barrel 12;

The bottom of the sump 20 is formed with an arc-shaped opening matching the circular barrel surface of the filter drum 10, and the edge of the opening in contact with the barrel surface of the filter drum 10 is equipped with leak-proof glue. The bar is used to prevent rainwater from leaking; the filter intercepting and collecting bucket 12 communicates with the contact surface of the sump 20, and is used to collect the dirt thrown into the filtering and intercepting collecting bucket 12 when the filter drum 10 rotates ; and the sump 20 is formed with a hook sleeve 22 that is mated with the hook 21, so that the filter and sewage collection bucket 12 is fixed with the sump 20, and the sump 20 is connected with the sump 20 The edge of the filter and interception collection bucket 12 is shaped with leak-proof rubber strips;

The rainwater rushes down through the bypass branch rainwater pipe 11 and impacts the filter drum 10 along the tangential direction to make it roll quickly, throwing the dirt in the rainwater or the dirt scraped off by the arc scraper 25 into the filter drum 10. In the filter and interception collection bucket 12, the filtered rainwater flows into the drum filter box 18 through the holes of the filter drum 10, and the dirt enters the filter and interception collection bucket 12;

Filtered rainwater flows into the reservoir 5 after filtering through the secondary filter screen 19 installed at the bottom of the drum filter box 18 again;

The bottom of the reservoir 5 is equipped with an ultraviolet disinfection lamp 7 and a submersible pump 8, the ultraviolet disinfection lamp 7 disinfects the rainwater entering the pool, the submersible pump 8 communicates with the water delivery pipe 3, and the delivery The water pipe 3 communicates with the external water equipment. Meanwhile, the top of the reservoir 5 is equipped with a reservoir inspection port 13 and a ventilation overflow pipe 14 for the overflow of rainwater during maintenance and heavy rain.

In this example, the primary filter 9 is a (18 mesh) stainless steel filter, the secondary filter 19 is a (120 mesh) stainless steel filter, and the filter drum 10 is a stainless steel filter (120 mesh) roll Surrounded by the system to further improve the filtering effect.

In this example, the side waist of the sump 20 is an arc-shaped surface, which is used to increase its water capacity to accommodate and collect rainwater that flows in from the bypass branch rainwater pipe 11 and has no time to enter the filter drum 10 .

In this example, the annular floating ball baffle 16 is a rubber apron, which enhances the sealing performance when the two are in contact. In this example, the vertical direction of the downpipe 6 is designed as a downward spiral pipe, which further improves the rectification effect.

According to the rainstorm intensity formula:

q----Rainstorm intensity [L/(s hm ² )];

A ₁ ---- rain force parameter (mm)

t——rainfall duration (min), in this example, the rainfall is calculated according to the rainfall in 5 minutes:

T ---- is the return period (year), the return period is 2 years;

C----Rain force variation parameters

b ---- Rain duration correction parameter (min)

n ---- rainstorm attenuation index

Check the table and get A ₁ =6.912mm/min in Yantai area; C=1.067; b=9.018; n=0.609;

Substituting the data, according to the formula, we get

Roof water volume formula:

Q----Roof area water flow (L/S);

ψ----runoff coefficient, 0.9 is taken in this example;

F--- catchment area (m ² ), take 100m ² in this example;

The resulting roof water flow Q = 2.749 (L/S)

Determine that the discard volume of the discard container 17 within 5 minutes is 300×2.749=824.7dm ³ =0.825m ³

The diameter of the filter drum 10 is DN200mm, and the length is 0.8m; the size of the drum filter box 18 is length×width×height=1m×1m×1m.

According to the intensity of the once-in-two-year rainstorm, taking the rainfall duration T=1h, the intensity of the rainstorm is 115.707L/(s hm ² ), and the water volume of the roof is 1.041L/S, so the volume of the storage tank is 60×60×1.041 =3748.907L=3.749m ³ .

Length×width×height=2m×2m×1m of the design reservoir 5 .

The costs are described in Table 1.

Table 1 Cost estimation table of decentralized rainwater harvesting equipment

Taking a 100m ² residence in Yantai area as an example, if the roof runoff coefficient is 0.8, the amount of rainwater that can be collected within a year is 53.2m ³ . Then, based on the water price in Yantai area of 3.55 yuan/ton, the water price that can be saved within a year is 188.86 yuan, 2.7 The cost can be recovered within a year. According to the calculation of the research team, only the courtyard houses in Yantai area can save 275 tons of standard coal in one year.

The three consecutive rainfalls in May 2016 in Yantai area were randomly analyzed, and the rainwater in the jettison-sewage interception device and the outlet of the storage tank were respectively tested for testing. The water quality indicators are shown in Table 2. The above indicators all meet the treated rainwater indicators stipulated in "Urban Sewage Recycling-Urban Miscellaneous Water Quality" (GB/T 18920-2002) and "Technical Specifications for Rainwater Utilization Engineering in Buildings and Residential Areas" (GB50400-2006).

Table 2 Changes in rainwater quality indicators

Taking Yantai as an example, the total cost of the system device designed in Yantai is about 600 yuan, which is very conducive to market promotion and use. After investigation, the annual roof rainwater that can be collected on a 100m ² roof in Yantai is 53.2m ³ , only in Yantai area For courtyard houses, it can save 275 tons of standard coal per year and reduce CO ₂ emissions by 72 tons per year. If it is used on a large scale, it is of great significance for reducing rainwater discharge, making rainwater a resource, alleviating the water resource crisis, reducing energy consumption for tap water treatment and transportation, saving water, saving energy and reducing emissions.

Claims (4)

1. ultromotivity automatically cleaning roof rainwater collection processing system device, including roof drain (1), abandoned stream supporting rack (2), water-supply-pipe (3), downpipe (4),

Characterized by further comprising cistern (5), water blocking floating ball (6), ultraviolet disinfecting lamp tube (7), immersible pump (8), level-one mistakes Strainer (9), filter drum (10), bypass branch's rain pipe (11), filtering cut a dirty collecting vessel (12), cistern access hole (13), Ventilation overflow pipe (14), soil cleaning port (15), annular floating ball baffle (16), abandoned stream container (17), drum filtration case (18), two level mistake Strainer (19), catch basin (20), grab (21), rhampotheca (22), lug (23), handle (24), arc scraper plate (25),

The downpipe (4) is vertically-mounted along building wall, and the upper port of the downpipe (4) is connected with roof drain (1)；

Downpipe (4) the lower end connection abandoned stream container (17), abandoned stream container (17) bottom is equipped with abandoned stream supporting rack (2), and the abandoned stream container (17) bottom is also formed with soil cleaning port (15), is accumulated in the abandoned stream container (17) for initial stage Muddy rainwater abandoned stream, the water blocking floating ball met and be capable of free floating after water is placed in the cavity of the abandoned stream container (17) (6), the downpipe (4) is formed with the annular floating ball baffle of circle protrusion on the inner wall above the abandoned stream container (17) (16), and the sphere diameter of the water blocking floating ball (6) is more than described in the downpipe (4) at annular floating ball baffle (16) Caliber, while less than the tube chamber caliber of the downpipe (4)；

Upper position of the downpipe (4) at the annular floating ball baffle (16) is provided with through-hole, and through hole is equipped with level-one mistake Strainer (9), and the through-hole is connected with bypass branch rain pipe (11) one end, it is described to bypass the another of branch's rain pipe (11) End is connected with the catch basin (20) in drum filtration case (18)；

Meanwhile the inner wall of downpipe (4) and bypass branch's rain pipe (11) is the contorted pipe design of downward spiral, enhances water The flow velocity of rainwater in pipe；

It is formed at the top of the drum filtration case (18) and pulls and pushes the opening that filtering cuts dirty collecting vessel (12), bottom is equipped with secondary filtration Net (19), the filter drum (10) is designed for cylinder shape to be placed in drum filtration case (18) babinet, the filtering rolling Cylinder (10) is rolled for aperture stainless steel strainer, and filter drum (10) top is equipped with the filtering and cuts dirty collecting vessel (12) and the catch basin (20)；

The filtering cuts dirty collecting vessel (12) top surface and is formed with lug (23) and handle (24), bottom and the filter drum (10) Bucket face contact position is equipped with the arc scraper plate (25) being used cooperatively with the filter drum (10) bucket face, and the filtering cuts dirt Collecting vessel (12) is formed with grab (21) with the side that the catch basin (20) contacts, and lug (23) the limiting filtering cuts dirt It is fixed to be cut dirty collecting vessel (12) in the plate face of drum filtration case (18) top open part by collecting vessel (12) for the filtering In the drum filtration case (18), the handle (24) cuts dirty collecting vessel (12) for lifting or being put into the filtering, depending on The phase cleaning filtering cuts the dirt in dirty collecting vessel (12)；

The arc scraper plate (25) is close to the filter drum (10), and is no more than 1mm with the spacing of the filter drum (10), It will be attached under the dirt scraping of the filter drum (10), and the dirt scraped is with described during filter drum (10) rotation The rotation of filter drum (10), which is got rid of, to cut into the filtering in dirty collecting vessel (12), meanwhile, the filter drum (10) is got rid of when rotating The flow gone out, which can also impact dirt, to be entered in the dirty collecting vessel (12) of the filtering section；

The bottom of the catch basin (20) is formed with circular shape opening matched with the round tank face of the filter drum (10), And leakproof adhesive tape is installed with the edge of opening of the bucket face contact position of the filter drum (10) for preventing rainwater from letting out Dew；The filtering cuts dirty collecting vessel (12) and is communicated with the contact surface of the catch basin (20), for collecting the filter drum (10) dirt that the filtering is cut in dirty collecting vessel (12) is got rid of when rotating；And it is formed with and the card on the catch basin (20) Hook (21) coordinates the rhampotheca (22) of grafting so that and the filtering cuts dirty collecting vessel (12) and the catch basin (20) is fixed, and The catch basin (20) cuts dirty collecting vessel (12) contact position edge with the filtering and is formed with leakproof adhesive tape；

Rainwater sweeps away by bypass branch's rain pipe (11) and is rolled along filter drum (10) tangential direction impact filtering Cylinder (10) makes its fast scroll, and the dirt that the dirt in rainwater or the arc scraper plate (25) scrape is got rid of and cuts dirt into the filtering In collecting vessel (12), hole of the rainwater Jing Guo the filter drum (10) after filtering is flowed into the drum filtration case (18), Dirt enters the filtering and cuts dirty collecting vessel (12)；

Rainwater after filtering again by the bottom for being installed on the drum filtration case (18) secondary filtration net (19) mistake Cistern (5) is flowed into after filter；

Cistern (5) bottom is equipped with ultraviolet disinfecting lamp tube (7) and immersible pump (8), the ultraviolet disinfecting lamp tube (7) Carry out disinfection to the rainwater in entrance pond processing, and the immersible pump (8) connects with water-supply-pipe (3), the water-supply-pipe (3) and outside Watering equipment connects, meanwhile, cistern access hole (13) and ventilation overflow pipe (14) at the top of the cistern (5) are installed, used The overflow of rainwater when maintenance and heavy rain.

2. device according to claim 1, it is characterised in that the filter drum (10) rolls packet for 120 mesh of stainless steel filtering net It encloses, the by-pass filtration net (9) is 18 mesh stainless steel filter screens, and the secondary filtration net (19) is 120 mesh stainless steel filtering nets.

3. device according to claim 1, it is characterised in that the annular floating ball baffle (16) is rubber enclosed.

4. device according to claim 1, it is characterised in that catch basin (20) side waist is arcwall face.