CN102346059B - Simple device for measuring surface runoff quantity and collecting runoff liquid - Google Patents

Simple device for measuring surface runoff quantity and collecting runoff liquid Download PDF

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Publication number
CN102346059B
CN102346059B CN 201010536786 CN201010536786A CN102346059B CN 102346059 B CN102346059 B CN 102346059B CN 201010536786 CN201010536786 CN 201010536786 CN 201010536786 A CN201010536786 A CN 201010536786A CN 102346059 B CN102346059 B CN 102346059B
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China
Prior art keywords
shaped pipe
runoff
flow liquid
tap hole
water inlet
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Expired - Fee Related
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CN 201010536786
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Chinese (zh)
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CN102346059A (en
Inventor
曾招兵
姚建武
艾绍英
李盟军
王艳红
唐明灯
余丹妮
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GUANGDONG AAS SOIL AND FERTILIZER RESEARCH INSTITUTE
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GUANGDONG AAS SOIL AND FERTILIZER RESEARCH INSTITUTE
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Priority to CN 201010536786 priority Critical patent/CN102346059B/en
Publication of CN102346059A publication Critical patent/CN102346059A/en
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Publication of CN102346059B publication Critical patent/CN102346059B/en
Expired - Fee Related legal-status Critical Current
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Abstract

The invention relates to the field of agricultural environments, in particular relates to a scientific research auxiliary device for monitoring the agricultural environment, and particularly provides a simple device for measuring a surface runoff quantity and collecting a runoff liquid. The simple device comprises a U-shaped pipe partially buried under the ground, wherein a water inlet and a water outlet are formed at two ends of the U-shaped pipe respectively; the water inlet is arranged on the surface of the ground and the water outlet is arranged in a drainage ditch; a flow splitting hole is formed in the U-shaped pipe below the water outlet; a hard flow guide pipe is arranged on the flow splitting hole; a liquid receiving funnel is arranged below the hard flow guide pipe; the liquid receiving funnel is connected with a collection bucket in an underground bucket tank through a flow guide hose; and a bucket tank cover is arranged on the upper side of the bucket tank. Compared with the prior art, the simple device has the characteristics of simple structure, lower construction cost, convenience for operation and easiness in popularization.

Description

A kind of simple and easy flow path surface is measured and footpath flow liquid harvester
Technical field
The present invention relates to the agricultural environment field, particularly a kind of scientific research servicing unit of Agricultural Environmental Monitoring specifically provides a kind of simple and easy flow path surface to measure and footpath flow liquid harvester.
Background technology
In recent years, along with effective improvement of industrial point source, agricultural nonpoint source pollution comes into one's own day by day.Rainwash is the main path that the agricultural nonpoint source pollution logistics is lost, and also is the hot issue of Researches on Agricultural Non-Point in recent years.The loss law of each pollutant such as nitrogen phosphorus, agricultural chemicals, heavy metal is significant to coordinating agricultural production and water environment protection problem in the research rainwash.
Domestic research means for rainwash pollutant loss rule is mainly by long-term actual observation and quantitative test, set up the correlationship of flow path surface and pollutant load, research method adopts runoff testing field method more, namely in survey region, select an area little, can represent closure or the semiclosed property test site of each category feature of survey region, by the water yield of long term monitoring test site rainwash and the concentration of various pollutants, determine the pollutant load per unit amount, then take advantage of the survey region area by the specific load amount, estimate the non-point source pollution load.Runoff testing field method can alleviate workload, and expense is also lower, and the objective loss law of the rainwash pollutant that the result of monitoring can more accurate image study zone relatively is suitable for the few reality of China's research funding, therefore is used widely.
At present, the run-off of runoff testing field method is measured and footpath flow liquid harvester generally is comprised of runoff pond and other utility appliance, this device is collected into the runoff pond with whole footpaths flow liquid that the test site produces, calculate run-off by the measuring cell depth of water, then collecting part footpath flow liquid is used for measuring the content of rainwash pollutant, this runoff pool device can the Measurement accuracy test site run-off, get the concentration that part can be used for measuring pollutant behind the footpath flow liquid mixing of collecting, the monitoring result that obtains also can represent the pollutant levels of whole test site, but there are 2 deficiencies in the actual application: one, the volume in runoff pond need to be determined according to the maximum diameter flow that the test site can produce, therefore the runoff pool volume requires design enough large, and this is so that the construction project floor area is more; Two, the runoff pool area is large, and the cleaning of drawing water of runoff pond waits operating process to waste time and energy, operation inconvenience.
Therefore, be badly in need of these problems that a kind of simple and easy flow path surface of design is measured and directly the flow liquid harvester solves the method existence of runoff testing field.
Summary of the invention
The present invention be directed to above problem, provide a kind of simple and easy flow path surface to measure and footpath flow liquid harvester, its solved present runoff testing field method run-off measure and footpath flow liquid gatherer process in the occupied ground that exists greatly, not easy-operating deficiency, have simple in structure, construction cost is lower, operation is convenient, the characteristics promoted easily, energy Accurate Determining run-off size, and can obtain simultaneously representative mixing runoff water sample, can satisfy testing requirements.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of simple and easy flow path surface is measured and footpath flow liquid harvester, comprise that part is embedded in underground U-shaped pipe, described U-shaped pipe two ends arrange respectively water inlet and water delivering orifice, described water inlet is arranged at the earth's surface, described water delivering orifice is arranged in the trench drain, be provided with several tap holes on the U-shaped pipe of described water delivering orifice below, each tap hole aperture is identical, and each aperture center is in the same level height, be provided with the hard mozzle on the described tap hole, described hard mozzle below arranges funnel, and described funnel is by the gathering barrel in the stream guiding tube connection RVB groove, and described bucket groove top is provided with a barrel groove lid.
Be provided with filter mantle on the water inlet of U-shaped pipe.
The hard mozzle is L shaped.
Tap hole is 10~20, and it is periphery on the tube wall of the water delivering orifice below of U-shaped pipe, is provided with the hard mozzle on each tap hole.
A kind of simple and easy flow path surface of the present invention is measured and footpath flow liquid harvester, relate generally to hydraulic pressure drainage principle and shunting principle, namely at U-shaped Guan Yiduan design water inlet, and at the identical some tap holes in sustained height Position Design aperture, U-shaped pipe other end side, utilize water inlet to be higher than the difference in height that tap hole produces, make and enter footpath of the present invention flow liquid and form certain hydraulic pressure in the tap hole position, because the hydraulic pressure intensity of sustained height all directions equates, therefore the footpath flowing liquid that flows out from each hole is long-pending all equal, and the footpath flow liquid that flows to like this device is divided into some equal portions through behind the tap hole.The footpath flow liquid that one of them hole is discharged is collected rear measurement volumes, get final product the runoff volume that estimating test district single produces according to osculum quantity; This part footpath flow liquid of collecting can represent the content that is used for measuring pollutant when time rainwash of generation.
The present invention mainly partly is comprised of trench drain, filter mantle, U-shaped pipe, tap hole, funnel, bucket groove, gathering barrel etc.
1, trench drain, major function is in time discharged for guaranteeing unnecessary footpath flow liquid, and runoff collecting device of the present invention requires more than the ditch depth 40cm of trench drain.
2, filter mantle, major function is to prevent that the particle that moves with runoff water from stopping up the runoff device, be shaped as hemispherical, width of mesh is advisable between 5mm~8mm, mesh too Xiao Yi is stopped up the unfavorable runoff water draining of mesh by finely ground particle substance, mesh too Da Yi causes the field larger particles to flow to drainpipe obstruction osculum, and also unfavorable runoff water is discharged.
3, U-shaped pipe and tap hole, major function control water inlet and draining.The PVC of material take the internal diameter specification as 6~12cm is advisable, and an end places in the test site, and the opening level is used for water inlet up, and its height is consistent with the freeing port of test site, and upper surface cover has " filter mantle "; The other end places the trench drain, same opening level up, 10~20 tap holes evenly distribute in the side that is lower than test site freeing port 10~20cm, each tap hole is socketed with internal diameter 5~10mm " hard mozzle ", " hard mozzle " is L-type, and the footpath flow liquid of discharge is flowed out vertically downward.
4, funnel, major function are to receive the footpath flow liquid that L-type " hard mozzle " flows out, and by flexible pipe drainage to " gathering barrel ".The diameter of funnel mouth requires greater than " tap hole " aperture more than 1 times.
5, bucket groove, major function is for preventing from leaking and placing " gathering barrel ", material can be used brick and cement masonry, it is circular that shape is preferably, diameter 60~120cm, and the degree of depth is 130cm (the following 100cm in earth's surface wherein that is advisable, the above 30cm in earth's surface), notch covers with asbestos tile or other material.
6, gathering barrel, major function are to collect the footpath flow liquid that flows out from " tap hole ", and material is that the common plastics bucket gets final product.
A kind of simple and easy flow path surface of the present invention is measured and footpath flow liquid harvester, and its footpath flow liquid collection process is as follows:
When the test site produces rainwash, the footpath flow liquid flows into from the inlet end of U-shaped pipe, larger particle is filtered the cover gear outside, because water inlet is higher than tap hole, the footpath flow liquid forms certain hydraulic pressure in the tap hole position, runoff water flows out from each tap hole immediately, and a copy of it footpath flow liquid is by the hard mozzle---and funnel is collected in the gathering barrel, and the footpath flow liquid that all the other tap holes flow out directly enters in the trench drain discharges.Measurement flows to the footpath flow liquid of gathering barrel, multiply by the footpath flow liquid total amount that is the test site after the quantity of tap hole, again with the water mixing in the gathering barrel, takes back use for laboratory in test with less container splendid attire.
A kind of simple and easy flow path surface of the present invention is measured and footpath flow liquid harvester, for the runoff pool device of present use, has following advantage and effect:
(1) floor area is little, is 1/tens of present operative installations;
(2) construction cost is lower, and quantities is little;
(3) runoff water is easy to gather and clean;
(4) antileaking, maintenance cost is low.
Description of drawings
Fig. 1 is the structural representation of a kind of simple and easy flow path surface mensuration and footpath flow liquid harvester.
Embodiment
Below in conjunction with the drawings and specific embodiments a kind of simple and easy flow path surface mensuration of the present invention and footpath flow liquid harvester are further described.
As shown in drawings, a kind of simple and easy flow path surface is measured and footpath flow liquid harvester, comprise that part is embedded in underground U-shaped pipe 1, described U-shaped pipe 1 two ends arrange respectively water inlet and water delivering orifice, described water inlet is arranged at the earth's surface, described water delivering orifice is arranged in the trench drain 2, be provided with tap hole 3 on the U-shaped pipe 1 of described water delivering orifice below, be provided with hard mozzle 4 on the described tap hole 3, described hard mozzle 4 belows arrange funnel 5, the gathering barrel 8 that described funnel 5 connects in the RVB groove 7 by stream guiding tube 6, described bucket groove 7 tops are provided with a barrel groove lid 9.
Be provided with filter mantle 10 on the water inlet of U-shaped pipe 1.
Hard mozzle 4 is L shaped.
Tap hole 3 is 10~20, and it is periphery on the tube wall of the water delivering orifice below of U-shaped pipe 1, is provided with hard mozzle 4 on one of them tap hole 3.
Above-described embodiment, the present invention embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solution of the present invention scope and replacing all should be included in protection scope of the present invention.

Claims (4)

1. a simple and easy flow path surface is measured and footpath flow liquid harvester, comprise that part is embedded in underground U-shaped pipe, it is characterized in that, described U-shaped pipe two ends arrange respectively water inlet and water delivering orifice, described water inlet is arranged at the earth's surface, described water delivering orifice is arranged in the trench drain, be provided with several tap holes on the U-shaped pipe of described water delivering orifice below, each tap hole aperture is identical, and each aperture center is in the same level height, is provided with the hard mozzle on the described tap hole, and described hard mozzle below arranges funnel, described funnel is by the gathering barrel in the stream guiding tube connection RVB groove, and described bucket groove top is provided with a barrel groove lid.
2. a kind of simple and easy flow path surface according to claim 1 is measured and footpath flow liquid harvester, it is characterized in that, is provided with filter mantle on the water inlet of described U-shaped pipe.
3. a kind of simple and easy flow path surface according to claim 1 is measured and footpath flow liquid harvester, it is characterized in that described hard mozzle is L shaped.
4. a kind of simple and easy flow path surface according to claim 1 is measured and footpath flow liquid harvester, it is characterized in that described tap hole is 10~20, and it is periphery on the tube wall of the water delivering orifice below of U-shaped pipe, is provided with the hard mozzle on each tap hole.
CN 201010536786 2010-11-08 2010-11-08 Simple device for measuring surface runoff quantity and collecting runoff liquid Expired - Fee Related CN102346059B (en)

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CN 201010536786 CN102346059B (en) 2010-11-08 2010-11-08 Simple device for measuring surface runoff quantity and collecting runoff liquid

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Application Number Priority Date Filing Date Title
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CN102346059B true CN102346059B (en) 2013-02-20

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CN104596798A (en) * 2015-01-20 2015-05-06 同济大学 Rainfall runoff collector

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CN102692492A (en) * 2012-06-20 2012-09-26 北京林业大学 Device for bearing litterthrough
CN103698156B (en) * 2013-12-02 2014-10-15 浙江大学 System and method for collecting runoffs from flooded rice field
CN104501881A (en) * 2014-12-29 2015-04-08 广东省农业科学院农业资源与环境研究所 Surface runoff rate measuring and separating flow sampling device
CN104730224B (en) * 2015-04-21 2016-08-24 中国矿业大学 Under land in gully, coal mining is to the experimental provision of earth's surface runoff influence and method
CN104964853B (en) * 2015-07-20 2018-03-23 清华大学深圳研究生院 A kind of event mean concentrations sampler
CN105823657A (en) * 2016-03-11 2016-08-03 无锡市环境科学研究所 High efficient runoff sampling method
CN106226128A (en) * 2016-09-21 2016-12-14 江苏省农业科学院 A kind of rice wheat agricultural run-off acquisition time and proportioning device and method

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