CN207260052U - A kind of blocking pervious concrete pavement original position water penetration recovery device rinsed based on reverse flow - Google Patents
A kind of blocking pervious concrete pavement original position water penetration recovery device rinsed based on reverse flow Download PDFInfo
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- CN207260052U CN207260052U CN201720663943.1U CN201720663943U CN207260052U CN 207260052 U CN207260052 U CN 207260052U CN 201720663943 U CN201720663943 U CN 201720663943U CN 207260052 U CN207260052 U CN 207260052U
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Abstract
The utility model discloses a kind of blocking pervious concrete pavement original position water penetration recovery device rinsed based on reverse flow, described device includes packaged type and aspirates with being pressurized integrated device and road surface flushing head device, packaged type is aspirated is equipped with vacuum aspirator with supercharging integrated device top, lower part is equipped with water tank and flushing water booster water pump, intercommunicating pore is set between the space of upper and lower part and is furnished with strainer, water tank sets filling pipe and emptying pipe；Head device is rinsed on road surface includes sealing vacuum backwash head and outer annular sparge pipe, and sealing vacuum backwash head top is catchment covers, and the lower part contacted with ground is rubber gasket；Packaged type is aspirated sets air intake duct and pressure pipe to be connected respectively with sealing vacuum backwash head and annular spray pipe between supercharging integrated device and road surface flushing head device, and air admission valve is set on air intake duct, flow control valve is set on pressure pipe.The utility model is recovered by efficient current back-flushing method in situ to blocking pervious concrete pavement water penetration, has recovery rate high, the characteristics of recovery more thoroughly, feasible means are provided for the operation and maintenance of pervious concrete pavement.
Description
Technical field
The invention belongs to municipal works subject water ＆ wastewater engineering field, specifically, is related to a kind of based on reverse
The blocking pervious concrete pavement original position water penetration recovery device that current rinse.
Background technology
Urban waterlogging problem has become the problem of urgent need to resolve in the development of current city, according to the Ministry of Construction 2010 to 349
The situation of a urban waterlogging Survey and Inquiry, 2008-2010 share 289 cities there occurs different degrees of waterlogging, account for investigation
The 80% of city number.In October, 2015, State Council prints and distributes《On promoting the instruction of sponge urban construction》In propose and adopt
With ooze, it is stagnant, store, net, use, the measure such as row by rainfall on-site elimination and the sponge urban construction policy utilized, carry forward vigorously sponge
Urban construction.Pervious concrete pavement is a kind of Eco-friendly concrete pavement material, has abatement urban pavement rainfall footpath
Stream, pavement runoff pollution purification, recharge groundwater, the influence of alleviation urban heat land effect, sqouynd absorption lowering noise and mitigation reflection action etc.
Advantage, due to its good performance, has become in sponge urban construction one of the technical measures of " oozing " and " net ", mainly
For light load road surfaces such as pavement, city square, outdoor parking lot, garden landscape roads.But pervious concrete pavement makes
It is its blockage problem with the greatest problem faced, the external relatively early national long-term follow for using pervious concrete pavement shows,
In the case where lacking maintenance condition, after 5-6 uses, more than 85% pervious concrete pavement coefficient of permeability is less than 50mm/h,
Even there is excess surface water in the rainy day and production is flowed, so as to develop into waterproof pavement and fail.According to applicant to domestic permeable mixed
Solidifying natives trade water penetration test result, dense population areas pervious concrete pavement have been lost saturating substantially after 3-4 is built up
Outlet capacity, the rainy day ground occur ponding and production flow.At present, domestic correlative study focus on pervious concrete pavement structure,
Material mix proportion, water penetration and runoff abatement efficiency etc..But the obstruction of pervious concrete hole and its maintenance and recovery
Method and apparatus lacks, and seriously limits the application of the technology, it is also difficult to provides and can borrow to the regular maintenance for having built up road surface
The means of mirror.
The blockage recovery of pervious concrete pavement takes daily cleaning mainly by strengthening regular maintenance, high pressure water flushing,
Tamper is removed in the measures such as vacuum suction.It is existing practice have shown that, daily cleaning, vacuum suction can only remove the particle on surface
Thing, regular cleaning can slow down the accumulation of tamper to a certain extent, but glutinous for what is formed in hole
Tie tamper, it is difficult to preferable to remove, high pressure water washing is a kind of common restoration methods, but due to pervious concrete surface layer
Hole is smaller and irregular, and flushing current from top to down are difficult the flushing current that larger flow velocity is formed in the duct of blocking,
Thus more difficult to develop the intrapore tamper that coheres, water penetration recovery rate is usually within the 20% of initial permeability rate.
According to inventor's experimental study, therefore, by vacuum strong pumping, formed on the top layer of pervious concrete pavement superficial layer under
Back flush current on and, back flush flow rate of water flow is greatly improved compared with top layer high pressure water washing mode in duct, can will
Top layer is cohered tamper and is developed with current, has recovery rate high, is pervious concrete pavement the characteristics of recovery more thoroughly
Operation and maintenance provides feasible measure.
The content of the invention
1st, to solve the problems, such as
Its water permeability is caused to decrease up to failure due to inevitably blocking during pervious concrete pavement use
The problem of not yet cause enough attention, " reconstruction is set, light pipe support " causes the porous pavement water penetration rapid decrease much built up, such as
What is established daily maintenance and blocks recovery measure, avoids its water penetration rapid decrease urgent need to resolve.It is external some researches show that
Take daily cleaning, high pressure water flushing, the measure such as vacuum suction is mainly effective to top layer loose particulate material, and recovery effects are limited, hair
Person of good sense's experimental study shows that blocking is concentrated mainly in the 2cm of top layer, based on the glues such as clay, sand grains.By live in situ
It is to remove road crust glue that a kind of reversely high-speed punching wash water stream is created in top course, recovers having for porous pavement water penetration
Effect, economy, feasible method, recover to provide effective means, are promoting " sponge city " to block the water penetration of porous pavement
Build and urban flood defence aspect plays an important roll.
2nd, technical solution
To achieve the above object, patent of the present invention uses following technical scheme：
Invent a kind of blocking pervious concrete pavement original position water penetration recovery device rinsed based on reverse flow, its feature
It is：Described device Method And Principle is to utilize to rinse head negative-pressure ward, and back flush water is formed in pervious concrete surface layer
Stream, forms tamper in porous pavement efficient reversed flushing and makes its removal, so as to fulfill good water penetration recovery effects.
The blocking pervious concrete pavement original position current backwash water penetration recovery device includes packaged type suction and supercharging device
Head device is rinsed with road surface, vacuum aspirator is arranged at packaged type suction and supercharging device top, and lower part is equipped with water tank and punching
Wash water booster water pump, intercommunicating pore is set between upper down space and intercepts impurity equipped with strainer, water tank sets filling pipe and emptying pipe；Road
Head device is rinsed in face includes sealing vacuum backwash head and outer annular sparge pipe, and sealing vacuum backwash head top is
Catchment covers, the lower part contacted with ground are rubber gasket；Packaged type aspirates and supercharging device rinses head device with road surface
Between set air intake duct and pressure pipe to be connected respectively with sealing vacuum backwash head and annular spray pipe, vacuum is set on air intake duct
Destructive valve, sets flow control valve on pressure pipe.
Preferably, the vacuum aspirator should be able to provide >=30kPa vacuums, and air intake duct preferably uses corrugated flexible hose, and
It is flat without being inhaled to bear vacuum aspirator vacuum, intake valve is set on air intake duct and destroys vacuum aspirator vacuum, there is provided
Pulsed of having a rest aspirates current.
The water tank is placed in vacuum aspirator lower part, and the backwashing water of suction can flow back into water tank part certainly and follow
Ring uses, it is preferable that sets diameter to be not less than 50mm intercommunicating pores (pipe) between vacuum aspirator and water tank, and is set in aperture
4-12 mesh filter screen impurity trappeds, the neighbouring shell in aperture, which is set, can open sealing breast hole to exclude strainer impurity trapped as needed.
The vacuum aspirator and water tank should use metal material can bear to be sucked by vacuum and indeformable, the storage
Water tank upper sets water inlet pipe, Guan Shangshe inlet valves, moisturizing as needed, and the bottom of storage tank sets emptying pipe to exclude bottom deposition
And emptying water tank when not used.
The water storage lower box part sets flushing water booster water pump, and the Pump Suction mouth of a river sets Steel net to prevent impurity from inhaling
Enter, the outer ring annular spray pipe that pumping line rinses head device with road surface is connected, and valve is set on outlet pipe, can pass through valve
Open degree, which is adjusted, rinses current size.
The sealing vacuum backwash head top that head device is rinsed on the road surface is catchment covers, is contacted down with ground
Portion is rubber gasket.
Preferably, the catchment covers use steel material, and planar dimension is rectangle, and rectangle long side can use 0.5-1.5m,
Short side dimension is not more than 20cm, and the rubber gasket uses individual layer or inside and outside double-layer structure, can be under vacuum suction state
Sealing is realized between ground.
3rd, beneficial effect
Compared with prior art method, technical scheme has the advantages that：
The technical program advantage is by under vacuum aided swabbing action, in the pervious concrete pavement surface layer of blocking
Form high-speed reverse and rinse current, the glue blocked in surface layer is washed off, so that it is permeable to recover pervious concrete pavement
Property.This method is limited mainly for the maintenance measure permeability rate recovery effects such as daily road cleaning, vacuum cleaning, high pressure water flushing
Problem and develop efficient block restoration methods.This method is rinsed compared to top layer giant, can be blocked up in porous pavement surface layer
Current are rinsed in the repercussion that more high speed is formed in consent road, and strength is formed to tamper in duct and washes away and removes, good from obtaining
Water permeable ability regeneration effect.Field test shows that the device is a kind of economic, feasible mode, by periodically regenerating dimension
Shield measure can extend the water permeability and service life of pervious concrete pavement, promote " sponge city " to build, realize benign
Urban Hydrologic circulates.
Brief description of the drawings
Fig. 1 recovery device plans
Fig. 2 recovery device A-A profiles
Fig. 3 recovers testing site 1 and recovers front and rear permeability rate change
Fig. 4 recovers testing site 2 and recovers front and rear permeability rate change
In figure：1st, vacuum aspirator；2nd, water tank；3rd, breast hole；4th, filling pipe；5th, moisturizing tube valve；6th, air intake duct；7、
Flow control valve；8th, flushing water booster water pump；9th, outlet pipe；10th, annular spray pipe mouth；11st, catchment covers；12nd, elastic rubber is close
Mounting；13rd, air admission valve；14th, intercommunicating pore and strainer；15th, emptying pipe (valve).
Embodiment
Experiment selection Nanjing many places are completed porous pavement progress, below by way of two example combination attached drawings to the present invention's
Device embodiments are described.
Embodiment 1
1. pervious concrete pavement basic situation and blockage
(1) pervious concrete pavement basic situation
Recover testing site 1 and be located at Nanjing Ding Huaimen street road section sidewalk, pervious concrete road pavement is created in August, 2016
Face, due to around pavement construction, in pervious concrete pavement section heap sand, places the facilities such as interim container builder's temporary shed, different permeable
Concrete section is respectively present typical sand grains blocking and sanitary sewage, machine oil, and dust granule mixing blockage, causes permeable road
Face water penetration comparatively fast declines.The road surface basic situation for recovering testing site 1 is as shown in table 1 below：
Table 1 recovers the road surface basic situation of testing site 1
| Road surface types | Building time | Groundwork thickness/particle diameter | Surface thickness/particle diameter | Block type |
| Pervious concrete pavement | 2016.08 | 6-8cm/5-15mm | 8-10cm/4-6.5mm | Based on fine sand blocks |
(2) pervious concrete pavement permeability rate changes
By to the point on October 03rd, 2016, on December 31st, 2016, on 03 05th, 2017, on May 18th, 2017
Four times, same place used bicyclic method water penetration test result analysis every 2 months (see Fig. 3), it is found that the experiment
Point is less than the man's activities such as heap sand of constructing in 8 wheat harvesting periods due to around after building up, and sand grains blocking is more serious, and permeability rate have dropped
69%.
(3) scene is in situ recovers experiment
The scene use of on May 18th, 2017 Patent equipment of the present invention is recovered.Concrete operations mode is as follows：
Block before recovering, recover the permeability rate of testing site 1 using bicyclic method water penetration measurements determination, then dust catcher aspirates
Remove road crust impurity chip.Device is placed in the road surface after cleaning, road surface flushing head device, which is positioned at, needs recovery point, stores up
Water tank water-filling is completed to recover preparation.Flushing water booster water pump 8 is opened, outlet pipe flow control valve 7 is opened and adjusts it and open
Qi Du makes annular spray pipe 10 keep reasonable water spray, then starts vacuum aspirator 1, under vacuum suction, elastic rubber is close
Vacuum is backwashed and sealed between head and ground by mounting 12, and negative pressure is formed in catchment covers 11, and 11 outer ring of catchment covers is sprayed water
The lower infiltration stream that pipe 10 sprays reversely aspirates back in cover and enters vacuum aspirator 1, and water storage is flowed back to by intercommunicating pore and strainer 14
Case 2 recycles.Adjusting 8 outlet pipe flow control valve of flushing water booster water pump, 7 open degree makes ejection current and vacuum suction water
Stream matching, ground is without obvious cross flow.For Smoking regime by the way of lasting suction backwash, backwash recovery time is 5min.
Breast hole 3 is opened after the completion of recovery and removes 14 impurity of strainer in case next time uses.
Recover 24 it is small when after, measure recover testing site 1 permeability rate see Fig. 3.At the beginning of when due to shortage, in August, 2016 is just built up
Beginning permeability rate data, this average permeability rate for sentencing in October, 2016 8.5cm/s see initial permeability rate as, can from Fig. 3
Go out, by recovering, permeability rate returns to the 63.5% of initial value from the 30.1% of initial value, before the permeability rate after recovery is recovery
The 207% of permeability rate, the traditional vacuum relatively reported both at home and abroad at present clean, and the recovery rate of high pressure water surface purging method report is bright
Aobvious height.
Embodiment 2
1. pervious concrete pavement basic situation and blockage
(1) pervious concrete pavement basic situation
Recover testing site 2 and be similarly positioned in Nanjing Ding Huaimen street road section sidewalk, positioned at the street pair for recovering testing site 1
Face, to create pervious concrete pavement in January, 2016, relatively recovers testing site 1 and builds early 9 months.Predominantly occupied around testing site
People's cell, simultaneously because section is urban district major trunk roads, vehicle, pedestrian's amount are larger, section vehicle flowrate and pedestrian's amount point in 10 minutes
Not Wei 95 and 65 people, it is mainly that dust and pedestrian trample the tampers such as caused sand grains, clay particle to block, and can all be represented noisy
The stopping state of urban district typical case pavement use environment.The road surface basic situation for recovering testing site 2 is as shown in table 2 below：
Table 2 recovers the road surface basic situation of testing site 2
(2) pervious concrete pavement permeability rate changes
By to the point on March 05th, 2016, on July 23rd, 2016, on December 31st, 2016, on March 5th, 2017,
Five time points of May 18 day in 2017 use bicyclic method water penetration test result analysis (see Fig. 4), Ke Yifa to same place
It is existing, the testing site after building up less than, due to road surface silt particle, dust, pedestrian, which tramples, brings soil etc. into 16 wheat harvesting periods, block compared with
Seriously, the measure of May 18 in 2017 permeability rate have dropped 74.2% compared with measurement result permeability rate on March 05th, 2016.
(3) scene is in situ recovers experiment
On May 18th, 2017 scene recovered using apparatus of the present invention.Concrete operations mode is as follows：
Block before recovering, using the permeability rate of bicyclic method water penetration measurements determination recovery point 2, then dust catcher suction removes
Road crust impurity chip.Device is placed in the road surface after cleaning, road surface flushing head device, which is positioned at, needs recovery point, water tank
Water-filling is completed to recover preparation.Flushing water booster water pump 8 is opened, outlet pipe flow control valve 7 is opened and adjusts its open degree
Annular spray pipe 10 is kept reasonable water spray, then start vacuum aspirator 1, under vacuum suction, elastic rubber diaphragm seal
12 will seal between vacuum backwash head and ground, negative pressure be formed in catchment covers 11, by 11 outer ring sparge pipe 10 of catchment covers
The lower infiltration stream sprayed reversely aspirates back in cover and enters vacuum aspirator 1, flows back to water tank 2 by intercommunicating pore and strainer 14 and follows
Ring uses.Adjusting 8 outlet pipe flow control valve of flushing water booster water pump, 7 open degree makes ejection current and vacuum suction current
Match somebody with somebody, ground is without obvious cross flow.Smoking regime, which is used, opens the pulse backwashing side that air admission valve 13 destroys a vacuum per 30s
Formula, by varying hole in flow velocity glue in hole is developed, backwash recovery time is 8min, is beaten after the completion of recovery
Opening or cleaning cinder notch 3 removes 14 impurity of strainer in case next time uses.
Recover 24 it is small when after, the permeability rate that measure recovers testing site 2 is shown in Fig. 4, due to when lacking that in November, 2015 just builds up
Initial permeability rate data, this average permeability rate for sentencing 6.2cm/s on March 5th, 2016 see initial permeability rate as, can from Fig. 4
To find out, by recovering, permeability rate returns to the 62.9% of initial value from the 25.8% of initial value, and the permeability rate after recovery is extensive
The 244% of permeability rate before multiple, the traditional vacuum relatively reported both at home and abroad at present clean, the recovery of high pressure water surface purging method report
Rate is substantially higher.
Claims (6)
- A kind of 1. blocking pervious concrete pavement original position water penetration recovery device rinsed based on reverse flow, it is characterised in that： Described device includes packaged type and aspirates and be pressurized integrated device and road surface flushing head device, the packaged type suction and increasing Pressure integrated device top is equipped with vacuum aspirator (1), and lower part is equipped with water tank (2) and flushing water booster water pump (8), upper and lower part Intercommunicating pore is set between space and intercepts impurity equipped with strainer (14), water tank (2) side sets filling pipe (4), moisturizing tube valve (5) And emptying pipe (15)；Head device is rinsed on the road surface includes sealing vacuum backwash head and outer annular sparge pipe (10), It is catchment covers (11) to seal vacuum backwash head top, and the lower part contacted with ground is elastic rubber diaphragm seal (12)；It is removable Dynamic formula aspirate and supercharging integrated device and road surface rinse head device between set air intake duct (6) and pressure pipe (9) respectively with it is close Envelope vacuum backwash head is connected with annular spray pipe (10), air admission valve (13) is set on air intake duct (6), on pressure pipe (9) If flow control valve (7).
- 2. a kind of blocking pervious concrete pavement original position water penetration based on reverse flow flushing according to claim 1 is extensive Apparatus for coating, it is characterised in that：The suction should be able to be provided with supercharging integrated device top vacuum aspirator (1) to be not less than The vacuum of 30kPa, air admission valve (13) is set on air intake duct can destroy and aspirate its vacuum, so as to produce intermittent pulse type suction Current.
- 3. a kind of blocking pervious concrete pavement original position water penetration based on reverse flow flushing according to claim 1 is extensive Apparatus for coating, it is characterised in that：Diameter is set to be connected not less than 50mm between the top vacuum aspirator (1) and water tank (2) Hole, and strainer (14) impurity trapped is set in aperture, the backwashing water of suction by flowing back into certainly after strainer (14) impurity trapped Water storage box part recycles.
- 4. a kind of blocking pervious concrete pavement original position water penetration based on reverse flow flushing according to claim 1 is extensive Apparatus for coating, it is characterised in that：Described water tank (2) lower part sets flushing water booster water pump (8), and the Pump Suction mouth of a river sets stainless steel To prevent impurity from sucking, the outer ring annular spray pipe (10) that pumping line (9) rinses head device with road surface is connected wire gauze filter, It can be adjusted by the open degree of flow control valve (7) and rinse current size.
- 5. a kind of blocking pervious concrete pavement original position water penetration based on reverse flow flushing according to claim 1 is extensive Apparatus for coating, it is characterised in that：The sealing vacuum backwash head upper-part centralized water cover (11) that head device is rinsed on the road surface is flat Face size is rectangle, and rectangle long side preferably uses 0.5-1.5m, and short side dimension is not preferably greater than 20cm, the elastic rubber diaphragm seal (12) individual layer or interior outer double-layer structure can be used, can realize sealing between ground under vacuum suction state.
- 6. a kind of blocking pervious concrete pavement original position water penetration based on reverse flow flushing according to claim 1 is extensive Apparatus for coating, it is characterised in that：Vacuum aspirator (1), water tank (2) and the sealing vacuum backwash head upper-part centralized water cover (11) it is indeformable can bear vacuum suction preferably to use metal material, and the air intake duct (6) preferably uses corrugated flexible hose simultaneously to hold It is sucked by vacuum and indeformable.
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| CN201720663943.1U CN207260052U (en) | 2017-06-06 | 2017-06-06 | A kind of blocking pervious concrete pavement original position water penetration recovery device rinsed based on reverse flow |
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| CN201720663943.1U CN207260052U (en) | 2017-06-06 | 2017-06-06 | A kind of blocking pervious concrete pavement original position water penetration recovery device rinsed based on reverse flow |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999131A (en) * | 2017-06-06 | 2018-12-14 | 南京工业大学 | A kind of blocking pervious concrete pavement original position water penetration recovery device and restoration methods based on reverse flow flushing |
| CN111265926A (en) * | 2018-04-23 | 2020-06-12 | 杨久峰 | Multistage-filtration sewage treatment device |
-
2017
- 2017-06-06 CN CN201720663943.1U patent/CN207260052U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108999131A (en) * | 2017-06-06 | 2018-12-14 | 南京工业大学 | A kind of blocking pervious concrete pavement original position water penetration recovery device and restoration methods based on reverse flow flushing |
| CN111265926A (en) * | 2018-04-23 | 2020-06-12 | 杨久峰 | Multistage-filtration sewage treatment device |
| CN111282322A (en) * | 2018-04-23 | 2020-06-16 | 杨久峰 | Working method of sewage treatment device with multi-stage filtration |
| CN111265926B (en) * | 2018-04-23 | 2021-12-21 | 温州耐特尔自动化设备有限公司 | Multistage-filtration sewage treatment device |
| CN111282322B (en) * | 2018-04-23 | 2022-04-22 | 中交未名环保有限公司 | Working method of sewage treatment device with multi-stage filtration |
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