CN207317838U - It is a kind of to be used to detect the experimental rig that biology is detained facility operation efficiency - Google Patents

Abstract

The utility model discloses a kind of experimental rig for being used to detect biology delay facility operation efficiency, including rainwater-collecting bucket, water-carriage system, flow monitoring system, biology to be detained bucket, gas permeability measurement component and electric expansion awning；Rainwater in rainwater-collecting bucket is detained simulated rainfall in bucket by water-carriage system conveying spray in biology；Gas permeability measurement component is used for during simulated rainfall the infiltration coefficient for calculating filter layer medium；Flow monitoring system is used to record the amount of rainfall that biology is detained bucket disengaging；Electric expansion awning is arranged on biology and is detained above bucket, and can block natural rain by its stretching is detained in bucket into biology.The utility model installation cost is cheap, it is easy to operate, data are reliable, it is and convenient to gather, it is repeatable to utilize, the hydrology-water quality effect of biological delaying basin when different rain types, different filling mixture ratio, different floristics can be simulated, relevant basic research is for promoting sponge urban construction to be of great significance.

Description

It is a kind of to be used to detect the experimental rig that biology is detained facility operation efficiency

Technical field

It the utility model is related to sponge urban construction technical field, and in particular to one kind is used to detect biology delay facility fortune The experimental rig of row efficiency.

Background technology

Sponge city, is new generation of city storm water man- agement concept, it follows the principles such as Ecology Precedence, by natural way and people Work measure is combined, and on the premise of municipal drainage prevention waterlogging safety is ensured, realizes product of the rainwater in urban area to greatest extent Deposit, permeate and purify, promote the utilization and ecological environmental protection of rainwater resource.It is not to make a new start to build " sponge city ", Substitute traditional drainage system, but one kind " Reduction of Students' Study Load " and supplement to conventional drainage systems, farthest play city sheet The effect of body, water suction when raining, water storage, infiltration, water purification, it is necessary to when by the water stored " release " and be used.

Biological delaying basin be it is a kind of be located at the relatively low region of physical features, stored by plant, soil and microflora and ooze, purify The facility of runoff rainwater, is a crucial technology in sponge urban construction.China for biological delaying basin research starting compared with Evening, existing biology delaying basin experimental rig have ground type as the underground type and experiment bucket, chamber of simulating actual conditions Deng, but function is all relatively single, underground type can not observe the growing state and pool inner water position situation of root system of plant, and flow The installation inconvenience of the monitoring devices such as gauge, interference of the actual catchment to experiment can not be excluded by addition simulating rain making.

In November, 2014, the firmly portion's of building issue《Sponge urban construction technical manual》, it is pointed out that the hydrology, waterpower can be used Calculate with successively being decomposed to annual flow overall control the methods of modeling, substep is analyzed, but biology is detained facility feelings Condition is complex, it is necessary to which actual test data verification modeling and the correctness of calculating, continue to optimize model, same to duration The data accumulation of phase is also the specified offer more fully foundation of urban planning.

The content of the invention

The purpose of the utility model is to overcome problem above existing in the prior art, there is provided one kind is used to detect biological stagnant The experimental rig of facility operation efficiency is stayed, the utility model is easy to operate, and data are reliable, and convenient collection, repeats and utilizes, The hydrology-water quality of biological delaying basin is imitated when different rain types, different filling mixture ratios, different floristics can be simulated Should, relevant basic research is for promoting sponge urban construction to be of great significance.

To realize above-mentioned technical purpose and the technique effect, the utility model is achieved through the following technical solutions：

It is a kind of to be used to detect the experimental rig that biology is detained facility operation efficiency, including rainwater-collecting bucket, water-carriage system, stream Measure monitoring system, biology is detained bucket, gas permeability measurement component and electric expansion awning；

The rainwater-collecting bucket is placed on the ground of building downpipe side, the water inlet of the rainwater-collecting bucket with Building downpipe connects, and the water outlet of the rainwater-collecting bucket is connected with water-carriage system, is also set up on the rainwater-collecting bucket There is intake；

The water-carriage system includes water delivery manifold and flow controller, and the water delivery manifold passes through water pump and rainwater-collecting bucket Water outlet connection, be additionally provided with some delivery pipe branches on the water delivery manifold, be provided with and automatically control on the delivery pipe branch Valve and nozzle, the autocontrol valve are adjusted by flow controller and are opened and closed；

The biology is detained bucket and is arranged on below nozzle, and the biology, which is detained in bucket, is provided with filler, is planted on the filler There is plant and be equipped with plant growth sight gauge, the biology, which is detained on bucket, is provided with water outlet, overflow port and some sample taps, institute The water outlet for stating biology delay bucket is connected with externally drained pipe, and the overflow port that the biology is detained bucket is connected with overflow pipe, overflow Steel wire filter screen is equipped with mouthful, U-tube is both provided with the externally drained pipe and overflow pipe, the U-tube is stagnant positioned at biology The end set of barrel side is stayed highly to be less than the end set height that U-tube is detained bucket side away from biology, the sample tap tool There is opening and closing function, the flow monitoring system includes feed water flow gauge, water flow meter, excess flow meter and flow registering instrument, The feed water flow gauge is arranged on delivery pipe branch, and the water flow meter is arranged on externally drained pipe, and is located at water outlet Between U-tube, the excess flow meter is arranged on overflow pipe, and between overflow port and U-tube, the flow of inlet water Meter, water flow meter and excess flow meter are connected with flow registering instrument；

The gas permeability measurement component includes pressure-measuring pipe and installing plate, and described pressure-measuring pipe one end penetrates biology and is detained bucket simultaneously It is arranged in filler, the installing plate is fixed at the side that biology is detained bucket.

The electric expansion rain cover is arranged on biology and is detained above bucket.

Further, it is transparent plastics material that the biology, which is detained bucket, and the biology, which is detained on bucket outer surface, to be also wrapped on Black spongy layer.

Further, the filler is divided into filter layer, transition zone, water conservation layer and drainage blanket, the life from top to bottom The sample tap that thing is detained bucket is arranged on filter layer and the bucket wall of water conservation layer side, and respectively close to the bottom of filter layer and water conservation layer Portion is set, and the water outlet that the biology is detained bucket is arranged on the bucket wall of transition zone side, and perforation is provided with the drainage blanket Drainpipe, described perforated drain pipe one end are connected with backwash tube, and the backwash tube sequentially passes through drainage blanket, water conservation layer, mistake Cross layer and filter layer and protrude from the biology and be detained at the top of bucket, the perforated drain pipe other end is connected with soil stack, institute Soil stack is stated to be connected with water outlet through drainage blanket and water conservation layer.

Further, the filler is divided into filter layer, transition zone and drainage blanket from top to bottom, and the biology is detained bucket Sample tap be arranged on the bucket wall of filter layer side, and close to filter layer bottom set, it is described biology be detained bucket water outlet Mouthful be arranged on the bucket wall of drainage blanket side, be provided with perforated drain pipe in the drainage blanket, described perforated drain pipe one end with Backwash tube connects, and the backwash tube, which sequentially passes through drainage blanket, transition zone and filter layer and protrudes from the biology, is detained bucket Top, the perforated drain pipe other end are connected with water outlet.

Further, delay height is provided between the overflow port and filter layer.

Further, the quantity of the pressure-measuring pipe be 3, three pressure-measuring pipes set gradually from top to bottom and one end all It is arranged in filter layer, the spacing between adjacent pressure-measuring pipe is equal, and the pressure-measuring pipe is fixedly installed on a mounting board, pressure-measuring pipe The setting height of the other end is more than the setting height of overflow port, and scale strip is additionally provided with the installing plate.

Further, the motor of the electric expansion awning is connected with rainwater inductive switch.

Its test method comprises the following steps：

Step 1) selects corresponding storm recurrence period and rainfall duration, determines simulation according to local Rain Intensity Formula Based The rainfall intensity and quantum of rainfall of rainfall；

Feed water flow gauge, water flow meter, the flow reading of excess flow meter under step 2) record original state, are recorded as Q1, Q2, Q3, and feed water flow gauge, water flow meter, excess flow meter are connected with flow registering instrument, flow registering instrument is real-time Gathered data, flow controller adjust flow by adjusting the autocontrol valve on delivery pipe branch, determine working time, rainfall Start；

After step 3) rainfall, record feed water flow gauge, water flow meter, the flow reading of excess flow meter, record For Q11, Q22, Q33；

Quantum of rainfall in step 4) record rainfall, go out to flow overflowing after total amount and rainfall after rainfall Total amount is flowed, is recorded as Q1 ', Q2 ', Q3 ' respectively, quantum of rainfall Q1 '=(Q11-Q1), goes out to flow total amount Q2 '=(Q22-Q2), overflow Total amount Q3 '=(Q33-Q3)；

Step 5) reads rainfall from flow registering instrument and goes out the curve that stream changes over time, and computer is accessed, according to curve Can directly read out flow delay time t1, flood peak time delay t2, runoff volume reduction rate=(Q1 '-Q2 '-Q3 ')/(Q1 '- Q3 ') × 100% and flood peak reduction rate=(q1-q2)/q1, wherein q1 be the maximum flow rate in rainfall, q2 is to flow through Maximum flow rate in journey.

Further, in step 3) after rainfall, treat that biology is detained in bucket between surface level and filtering layer surface The reading of three pressure-measuring pipes is recorded when spacing is 10cm, h1, h2, h3 is recorded as and goes out flow velocity q, the infiltration coefficient of filter layer K=qL/Ah, wherein q be flow velocity, L is adjacent pressure measurement tube spacing, A is that biology is detained bucket surface area and h=[(h1-h2) +(h2-h3)]/2。

Further, the intake in rainwater-collecting bucket fetches water and detects to obtain contaminants associated concentration in original rainwater and refers to Mark, contaminants associated concentration refers in then fetching water at the water outlet port of exterior drainpipe and detecting the rainwater after being purified Mark, going for each pollutant is calculated by contaminants associated concentration in contaminants associated concentration in original rainwater and purified rainwater Except rate.The beneficial effects of the utility model are:

1st, this experimental rig prepares biology delay bucket, outside black sponge wrapping, simulation ground using transparent plastic material The environment of lower lucifuge, can tear the growing state of observation of plant root system at any time；Barrel side face installation pressure-measuring pipe is tested, can long term monitoring The situation of change of the infiltration coefficient of filter layer medium.

2nd, biology is detained installation induction type awning above bucket, and simulated rainfall nozzle be located at awning lower section, rain during natural rainfall Canopy is pulled on automatically, is packed up automatically after not raining for a period of time, receives illumination without prejudice to plant, also ensure that simulated rain trails is complete It is complete controllable, influenced from external condition, highly practical, intelligent effect is good, is particularly suitable for the rainy south of the lower reaches of the Yangtze River.

3rd, simulated rain trails is the rain water on roof collected with water, can be toward in rainwater-collecting bucket if do not rained for a long time Tap water is supplemented, and according to the rainfall runoff water quality test preparation water of actual measurement；Experiment is set to be limited from natural conditions, and can be with According to the Runoff test preparation water on the different road surfaces of actual measurement, study biology and be detained place of the bucket to different type runoff pollution Manage effect.

4th, the enterprising water flow data of flowmeter can be directly read, its data changed over time is uploaded to discharge record Instrument, then inputs computer, convenient further processing and application, can also directly read, intuitive and reliable, easy to operate.

5th, it is both provided with one section of U-tube on the overflow pipe of the externally drained pipe and overflow port of water outlet, it is ensured that go out Water is full-section pipe-flow, and meter readings are more accurate；Water outlet can utilize the pneumatosis effect of U-tube elbow at the same time, at U-tube A large amount of loss of flood peakes are caused, make the discharge pressure of outlet pipe reduce, reduced velocity flow, in this case, biology are detained in bucket Moisture content will higher, can reach very high for the utilization rate in staving gap；Steel wire filter screen, anti-falling stop are equipped with overflow port The debris such as leaf, which enter overflow blockage pipeline, makes overflow tube failure.

6th, biology delay barrel side wall is equipped with some sample taps, can be in corresponding construction layer for the feature of its filler layering Water sample detection effects of purification quality is taken out in bottom, analyzes removal of each layer to the contribution margin and pollutant of pollutant removal Journey；It is also possible to take each layer filler to carry out microbiological analysis in sample tap, and then study the cutting mechanisms of pollutant.

Described above is only the general introduction of technical solutions of the utility model, in order to better understand the skill of the utility model Art means, and being practiced according to the content of specification, with the preferred embodiment of the utility model and coordinate attached drawing detailed below Describe in detail bright as after.Specific embodiment of the present utility model is shown in detail by following embodiments and its attached drawing.

Brief description of the drawings

In order to illustrate more clearly of the technical solution in the utility model embodiment technology, embodiment technology will be retouched below Attached drawing is briefly described needed in stating, it should be apparent that, drawings in the following description are only the utility model Some embodiments, for those of ordinary skill in the art, without creative efforts, can also basis These attached drawings obtain other attached drawings.

Fig. 1 is the dimensional structure diagram of an embodiment；

Fig. 2 is U-tube part-structure view；

Fig. 3 is that the biology with water conservation layer is detained barrel structure schematic diagram；

Fig. 4 is the biology delay barrel structure schematic diagram without water conservation layer.

Embodiment

The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without creative efforts All other embodiments obtained, shall fall within the protection scope of the present invention.

With reference to shown in Fig. 1 and Fig. 2, a kind of of the utility model is used to detect the experiment dress that biology is detained facility operation efficiency The embodiment put, including rainwater-collecting bucket 1, water-carriage system 2, flow monitoring system, biology are detained bucket 3, gas permeability measurement Component 4 and electric expansion awning；Rainwater-collecting bucket collects rainwater by building roof and downpipe, farthest reduction and Simulate the rainwater situation in actual environment；Rainwater in rainwater-collecting bucket is detained in bucket by water-carriage system conveying spray in biology Simulated rainfall, the flow of simulated rainfall is adjusted by flow controller；Gas permeability measurement component is used in simulated rainfall process In obtain the infiltration coefficient of filter layer medium；Flow monitoring system is used to record the amount of rainfall that biology is detained bucket disengaging；It is electronic to stretch Contracting awning is arranged on biology and is detained above bucket, and can block natural rain by its stretching is detained in bucket into biology, ensures complete The reliability and accuracy of weather experiment, the motor of electric expansion awning are connected with rainwater inductive switch, automatically control, without people It is good for operation, intelligent effect.

Above-mentioned rainwater-collecting bucket is placed on the ground of building downpipe side, the water inlet and building of rainwater-collecting bucket Thing downpipe connects, and after being fallen under rainwater on the roof of building, can be flowed into from building downpipe in rainwater-collecting bucket, rainwater The water outlet of collecting vessel is connected with water-carriage system, and intake is additionally provided with rainwater-collecting bucket, easy to chemical examination of fetching water；

Wherein, water-carriage system includes water delivery manifold 21 and flow controller, and water delivery manifold passes through water pump 22 and rainwater-collecting The water outlet of bucket connects, and is additionally provided with some delivery pipe branches 23 on water delivery manifold, autocontrol valve is provided with delivery pipe branch 32 and nozzle 24；Nozzle is arranged on biology and is detained above bucket, and flow controller is by adjusting the autocontrol valve on delivery pipe branch Door adjustment flow of inlet water size, reaches the effect that simulated rainfall and water catchment area runoff import from rainfall；Biology is detained in bucket Filler is provided with, kind has plant and is equipped with plant growth sight gauge on filler, and easy to record plant growth situation in real time, biology is stagnant Stay and water outlet, overflow port and some sample taps 31 are provided with bucket, water outlet can discharge purified rainwater, overflow port energy The rainwater discharge oozed under enough having little time, the water outlet that biology is detained bucket are connected with externally drained pipe 11, and biology delay bucket overflows Head piece is connected with overflow pipe 12, and in the case where rainfall intensity is excessive, rainwater oozes under having little time, therefore overflow pipe can be by excess Rainwater is drained, and is avoided excessive rainfall from being detained barrel edge from biology and is overflowed, influences the accuracy of result of the test；It is equipped with overflow port Steel wire filter screen, prevents the debris such as fallen leaves from entering overflow blockage pipeline and making overflow tube failure；Sample tap has opening and closing function, day Often it is closed during work, when sampling opens.

U-tube 13 is provided with externally drained pipe and overflow pipe, the end set that U-tube is detained bucket side positioned at biology is high Degree is less than the end set height that U-tube is detained bucket side away from biology, and U-tube can ensure that water outlet is full-section pipe-flow, make flow It is more accurate to count reading；Water outlet can utilize the pneumatosis effect of U-tube elbow at the same time, cause a large amount of heads to damage at U-tube Lose, make the discharge pressure of outlet pipe reduce, reduced velocity flow, in this case, biology delay bucket in moisture content will higher, It can reach very high for the utilization rate in staving gap.

Flow monitoring system includes feed water flow gauge 51, water flow meter 52, excess flow meter 53 and flow registering instrument, into Water ga(u)ge is arranged on delivery pipe branch, to monitor the water for flowing into biology through delivery pipe branch and being detained bucket, water flow meter in real time It is arranged on externally drained pipe, and between water outlet and U-tube, to monitor the water from the outflow of externally drained pipe in real time, Excess flow meter is arranged on overflow pipe, and between overflow port and U-tube, to monitor the water from overflow pipe outflow in real time Amount, feed water flow gauge, water flow meter and excess flow meter are connected with flow registering instrument, and flow registering instrument can be by flowmeter Monitoring data collect, and then input computer, convenient record and the data processing in later stage；

Above-mentioned gas permeability measurement component includes pressure-measuring pipe 41 and installing plate 42, and pressure-measuring pipe one end penetrates biology and is detained bucket And be arranged in filler, installing plate is fixed at the side that biology is detained bucket, during the rainfall by recording pressure-measuring pipe Liquid level data and go out flow velocity, the infiltration coefficient of filter layer medium can be calculated.

Wherein, it is transparent plastics material that biology, which is detained bucket, can intuitively observe inner stuffing layer status and root system of plant Growing state, biology, which is detained on bucket outer surface, is also wrapped on black spongy layer, and it is dark to simulate underground while convenient observe Environment, reduces the interference of the extraneous factors such as illumination.

As shown in figure 3, in one embodiment, filler is divided into filter layer 14, transition zone 15, water conservation layer 16 from top to bottom With drainage blanket 17, above-mentioned four-layer structure is the packing layer of experiment, and the height of each layer can adjust within the specific limits, each layer Filler can need voluntarily to select to replace according to experiment, and relevant hydrology-water quality data are obtained eventually through simulated rain trails, on Stating kind on filter layer has plant；The sample tap 31 that biology is detained bucket is arranged on filter layer and the bucket wall of water conservation layer side, and point Do not set close to filter layer and water conservation layer bottom, sample tap can distinguish water sampling and a small amount of filler carries out water quality and microorganism point Analysis, studies the process and mechanism of pollutant removal；The water outlet that biology is detained bucket is arranged on the bucket wall of transition zone side, draining Perforated drain pipe 18 is provided with layer, rainwater can enter into and through perforation after above-mentioned packing layer from the perforation of perforated drain pipe Drainpipe is discharged, and perforated drain pipe one end is connected with backwash tube 19, and backwash tube sequentially passes through drainage blanket, water conservation layer, transition Layer and filter layer simultaneously protrude from biology and are detained at the top of bucket, when some impurity or the grains of sand block perforated drain pipe, pass through recoil Washing pipe can be dredged, and be provided with block at the top of backwash tube, and the leaf etc. that prevents from dropping in perforated drain pipe results in blockage And secondary pollution problems；The perforated drain pipe other end is connected with soil stack 181, and soil stack passes through drainage blanket and water conservation Layer is connected with water outlet, and soil stack extends from bottom to top, and rainwater is enabled in perforated drain pipe by rainwater gravity pressure Can be pressed into soil stack, final discharge, thus part of the rainwater below soil stack drain height be can not by from Weight pressure venting, the effect for reaching water conservation improves the Regulation capacity that biology is detained bucket.Water conservation layer provides anaerobism Environment, is easy to the growth of anaerobe, improves removal effect of the system to nitrogen, while the season of drought can also be for The moisture needed to plant growth.

As shown in figure 4, in one embodiment, filler is divided into filter layer 14, transition zone 15 and drainage blanket from top to bottom 17, the sample tap 31 that biology is detained bucket is arranged on the bucket wall of filter layer side, and is set close to the bottom of filter layer, sample tap Water sampling can be distinguished and a small amount of filler carries out water quality and microbiological analysis, study the process and mechanism of pollutant removal；Biology is stagnant Stay the water outlet of bucket to be arranged on the bucket wall of drainage blanket side, perforated drain pipe 18, perforated drain pipe one are provided with drainage blanket End is connected with backwash tube 19, and backwash tube sequentially passes through drainage blanket, transition zone and filter layer and protrudes from biological treatment case top Portion, the perforated drain pipe other end are connected with water outlet, it is not present water conservation layer, therefore rainwater can be from perforated drain pipe directly to going out The mouth of a river is discharged, and the biology to simulate without water conservation layer is detained the hydrologic effect and effects of purification quality of facility, and with guarantor The result of the test that the biology of water layer is detained facility is contrasted.

Delay height is provided between above-mentioned overflow port and filter layer, when rainfall is excessive, rainwater oozes under having little time, rain Water can be trapped in filtering layer surface, and after depth of immersion reaches overflow port, rainwater can be discharged from overflow pipe, the rainwater being detained herein Certain depth of water is formed, can so increase the storage capacity that biology is detained in bucket, further improves the effect for the slow row that avoids the peak hour.

The quantity of pressure-measuring pipe is 3, and three pressure-measuring pipes are set gradually from top to bottom and one end is all disposed within filter layer, phase Spacing between adjacent pressure-measuring pipe is equal, and pressure-measuring pipe is fixedly installed on a mounting board, and the setting of the other end of pressure-measuring pipe is highly more than The setting of overflow port highly, is additionally provided with scale strip on installing plate, facilitates direct reading.

To improve the accuracy of experiment and convincing power, its test method comprises the following steps：

Step 1) selects corresponding storm recurrence period and rainfall duration, determines simulation according to local Rain Intensity Formula Based The rainfall intensity and quantum of rainfall of rainfall；

Feed water flow gauge, water flow meter, the flow reading of excess flow meter under step 2) record original state, are recorded as Q1, Q2, Q3, and feed water flow gauge, water flow meter, excess flow meter are connected with flow registering instrument, flow registering instrument is real-time Gathered data, flow controller adjust flow by adjusting the autocontrol valve on delivery pipe branch, determine working time, rainfall Start；

After step 3) rainfall, record feed water flow gauge, water flow meter, the flow reading of excess flow meter, record For Q11, Q22, Q33；

Quantum of rainfall in step 4) record rainfall, go out to flow overflowing after total amount and rainfall after rainfall Total amount is flowed, is recorded as Q1 ', Q2 ', Q3 ' respectively, quantum of rainfall Q1 '=(Q11-Q1), goes out to flow total amount Q2 '=(Q22-Q2), overflow Total amount Q3 '=(Q33-Q3)；

Step 5) reads rainfall from flow registering instrument and goes out the curve that stream changes over time, and computer is accessed, according to curve Can directly read out flow delay time t1, flood peak time delay t2, runoff volume reduction rate=(Q1 '-Q2 '-Q3 ')/(Q1 '- Q3 ') × 100% and flood peak reduction rate=(q1-q2)/q1, wherein q1 be the maximum flow rate in rainfall, q2 is to flow through Maximum flow rate in journey.

In order to detect infiltration coefficient, in step 3) after rainfall, treat that biology is detained surface level and filter layer in bucket The reading of three pressure-measuring pipes is recorded when spacing between surface is 10cm, h1, h2, h3 is recorded as and goes out to flow flow velocity q, filter layer Osmotic coefficient k=qL/Ah, wherein q be flow velocity, L is adjacent pressure measurement tube spacing, A is that biology is detained bucket surface area and h =[(h1-h2)+(h2-h3)]/2.

By the restriction of above-mentioned formula and and collection data record, biology delay can be obtained under corresponding filling-material structure The relevant parameter of the hydrologic effect of bucket.

In addition, in order to detect effects of purification quality,：Fetch water in the intake of rainwater-collecting bucket and detect to obtain original rainwater In contaminants associated concentration index, then fetch water at the water outlet port of exterior drainpipe and detect in the rainwater after being purified Contaminants associated concentration index, passes through contaminants associated concentration in contaminants associated concentration in original rainwater and purified rainwater The removal rate of each pollutant is calculated, computational methods are as follows：If the initial concentration of certain pollutant index is C1, water outlet dirt after purification The concentration for contaminating thing is C2, then the removal rate of the whole process pollutant=(C1-C2)/C1 × 100%.

In one embodiment, the quantity that biology is detained bucket is 4, and two of which biology is detained bucket and is equipped with water conservation layer, in addition two A biology is detained bucket and does not set water conservation layer, to simulate influence of the different filling-material structures to plant growth, sets check experiment to improve Test accuracy and test efficiency.

The above embodiments, can comprehensively complete to test on the ground, without carrying out ground excavation, pass through the receipts of rainwater Collection can also avoid carrying out experiment in the case where not raining, and have great convenience, shorten the test period；It is stagnant in biology Stay the packing layer in bucket also to replace at any time, it is small to replace difficulty.

The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or new using this practicality Type.A variety of modifications to these embodiments will be apparent for those skilled in the art, determine herein The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause This, the utility model is not intended to be limited to the embodiments shown herein, and is to fit to and principles disclosed herein The most wide scope consistent with features of novelty.

Claims (7)

1. a kind of be used to detect the experimental rig that biology is detained facility operation efficiency, it is characterised in that：Including rainwater-collecting bucket, defeated Water system, flow monitoring system, biology are detained bucket, gas permeability measurement component and electric expansion awning；

The rainwater-collecting bucket is placed on the ground of building downpipe side, the water inlet and building of the rainwater-collecting bucket Thing downpipe connects, and the water outlet of the rainwater-collecting bucket is connected with water-carriage system, is additionally provided with and takes on the rainwater-collecting bucket The mouth of a river；

The water-carriage system includes water delivery manifold and flow controller, and the water delivery manifold is gone out by water pump and rainwater-collecting bucket Water end (W.E.) connects, and is additionally provided with some delivery pipe branches on the water delivery manifold, autocontrol valve is provided with the delivery pipe branch And nozzle, the autocontrol valve are adjusted by flow controller and are opened and closed；

The biology is detained bucket and is arranged on below nozzle, and the biology, which is detained in bucket, is provided with filler, and kind has plant on the filler Thing is simultaneously equipped with plant growth sight gauge, and the biology, which is detained on bucket, is provided with water outlet, overflow port and some sample taps, the life The water outlet that thing is detained bucket is connected with externally drained pipe, and the overflow port that the biology is detained bucket is connected with overflow pipe, at overflow port Equipped with steel wire filter screen, U-tube is both provided with the externally drained pipe and overflow pipe, the U-tube is detained bucket positioned at biology The end set of side is highly less than the end set height that U-tube is detained bucket side away from biology, and the sample tap, which has, to be opened Function is closed, the flow monitoring system includes feed water flow gauge, water flow meter, excess flow meter and flow registering instrument, described Feed water flow gauge is arranged on delivery pipe branch, and the water flow meter is arranged on externally drained pipe, and positioned at water outlet with it is U-shaped Between pipe, the excess flow meter is arranged on overflow pipe, and between overflow port and U-tube, the feed water flow gauge, go out Water ga(u)ge and excess flow meter are connected with flow registering instrument；

The gas permeability measurement component includes pressure-measuring pipe and installing plate, and described pressure-measuring pipe one end penetrates biology and is detained bucket and sets In filler, the installing plate is fixed at the side that biology is detained bucket,

The electric expansion rain cover is arranged on biology and is detained above bucket.

2. a kind of experimental rig for being used to detect biology delay facility operation efficiency according to claim 1, its feature exist In：It is transparent plastics material that the biology, which is detained bucket, and the biology, which is detained on bucket outer surface, is also wrapped on black spongy layer.

3. a kind of experimental rig for being used to detect biology delay facility operation efficiency according to claim 1, its feature exist In：The filler is divided into filter layer, transition zone, water conservation layer and drainage blanket from top to bottom, and the biology is detained the sampling of bucket Mouth is arranged on filter layer and the bucket wall of water conservation layer side, and is set respectively close to the bottom of filter layer and water conservation layer, the life The water outlet that thing is detained bucket is arranged on the bucket wall of transition zone side, and perforated drain pipe is provided with the drainage blanket, described to wear Hole drainpipe one end is connected with backwash tube, and the backwash tube sequentially passes through drainage blanket, water conservation layer, transition zone and filter layer simultaneously Protrude from the biology to be detained at the top of bucket, the perforated drain pipe other end is connected with soil stack, and the soil stack passes through Drainage blanket and water conservation layer are connected with water outlet.

4. a kind of experimental rig for being used to detect biology delay facility operation efficiency according to claim 1, its feature exist In：The filler is divided into filter layer, transition zone and drainage blanket from top to bottom, and the sample tap that the biology is detained bucket is arranged on On the bucket wall of filter layer side, and set close to the bottom of filter layer, the water outlet that the biology is detained bucket is arranged on drainage blanket On the bucket wall of side, perforated drain pipe is provided with the drainage blanket, described perforated drain pipe one end is connected with backwash tube, institute State backwash tube and sequentially pass through drainage blanket, transition zone and filter layer and protrude from the biology and be detained at the top of bucket, the perforation row The water pipe other end is connected with water outlet.

5. a kind of experimental rig for being used to detect biology delay facility operation efficiency according to claim 1, its feature exist In：Delay height is provided between the overflow port and filter layer.

6. a kind of experimental rig for being used to detect biology delay facility operation efficiency according to claim 3 or 4, its feature It is：The quantity of the pressure-measuring pipe is 3, and three pressure-measuring pipes are set gradually from top to bottom and one end is all disposed within filter layer Interior, the spacing between adjacent pressure-measuring pipe is equal, and the pressure-measuring pipe is fixedly installed on a mounting board, the setting of the other end of pressure-measuring pipe Highly it is more than the setting height of overflow port, scale strip is additionally provided with the installing plate.

7. a kind of experimental rig for being used to detect biology delay facility operation efficiency according to claim 1, its feature exist In：The motor of the electric expansion awning is connected with rainwater inductive switch.