CN102998148B - Soil water automatic sampling and monitoring method - Google Patents
Soil water automatic sampling and monitoring method Download PDFInfo
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- CN102998148B CN102998148B CN201210593003.1A CN201210593003A CN102998148B CN 102998148 B CN102998148 B CN 102998148B CN 201210593003 A CN201210593003 A CN 201210593003A CN 102998148 B CN102998148 B CN 102998148B
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Abstract
A soil water automatic sampling and monitoring method includes four steps: 1, embedding a sampling probe at a preset soil layer, wherein the embedding depth is 15-100cm, and the sampling probe is connected with a sampling bottle through a polyvinyl butral (pvb) tube; 2, controlling an intelligent vacuum pump to operate automatically through a time switch, and enabling the intelligent vacuum pump to automatically stop operating when the air pressure in the sampling bottle reaches 0.6 barometric pressure; 3, enabling the pressure of the sampling bottle to be maintained of 0.6 barometric pressure for 5-6 hours, enabling water in soil to permeate into the sampling probe, and further guiding the water into the sampling bottle through the pvb tube; and 4, enabling samples in the sampling bottle to automatically enter into a multifunctional water quality automatic detector after 6 hours, and enabling the multifunctional water quality automatic detector to automatically detect and record various water quality data. The soil water automatic sampling and monitoring method is simple in structure, easy and convenient to operate, and suitable for areas rich in soil water. A solar system is added, and the soil water automatic sampling and monitoring method can adapt to rural areas conveniently.
Description
Technical field:
The present invention relates to a kind of method that holard is automatically sampled and automatically monitored, belong to water environment protection technical field.
Background technology:
The holard in the present invention refers to the aqueous water in soil, and a part is absorbed by floor vegetation, and a part enters in underground water, and remainder is by soil evaporation or be retained in soil.The water quality of the holard has important impact to plant growth and quality of groundwater.Focused mostly at all kinds of surface water to water Quality Research in the past, less to the concern of the holard.Be an emerging content in water environment protection field to holard water Quality Research, the present invention is a kind of method of comparatively looking forward to the prospect.
Automatic monitoring system for surface water quality is very ripe.Water quality online auto monitoring system be one with on-line automatic analyzer device for core, use automatic control technology, computer technology and relevant dedicated analysis software and communication network, form one measures data processing and storage comprehensive system from water sampling, water sample pre-service, water sample, thus realize the on-line automatic operation of Water Automatic Monitoring System.
Water sample acquisition device generally has the modes such as soldier piles well formula, suspension bridge type, float-type, pontoon formula, water-bed fastening-type, sampling system is generally monitored by sampling water pump, sampling buoyant raft and thick isolated gate, water sample allocation units, pressure flow and water gathering tube road etc. forms, and mainly provides reliably to system, effective water sample.
On-line automatic analyzer device is the core of water quality online auto monitoring system.First should consider the needs of environmental management and the object of water quality monitoring when selecting on-line automatic analyzer device, determining monitoring project, thus select monitoring instrument according to monitoring project.Current domestic application more widely on-line automatic analyzer device has conventional 5 parameters (water temperature, pH value, conductivity, dissolved oxygen DO, turbidity) analyser, chemical oxygen demand (COD) (COD) analyser, permanganate index analyser, total organic carbon (TOC) analyser, nh 3-n analyser, total blood urea/nitrogen analyzer and total phosphorus analyser.
On-line automatic analyzer device generally has following function: data autostore; auto-shifted measurement; remote control, standard output interface and numerical monitor; automatic cleaning, state self-inspection and warning function (as: leak of liquid, line clogging, exceptional value, instrument internal temperature is too high, reagent is finished, high/low concentration, power-off etc.); dry running and power-off protection; incoming call recovers automatically, and the instruments such as COD, ammonia nitrogen, TOC, total phosphorus, total nitrogen have automatic Calibration calibration function.
The monitoring project of current national surface water quality automatic monitor station comprises water temperature, pH, dissolved oxygen DO (DO), conductivity, turbidity, permanganate index, total organic carbon (TOC), ammonia nitrogen, and the monitoring project of lake water quality automatic monitor station also comprises total nitrogen and total phosphorus.
The Monitoring frequency of country's surface water quality automatic monitor station generally adopts sampling analysis in every 4 hours once.Every day, each monitoring project can obtain 6 monitoring results, can improve Monitoring frequency according to managerial demand.Monitoring Data is sent to the trustship station of each water quality automatic Weather Station, provincial monitoring center station and China Environmental Monitoring General Station by public outer net VPN mode.
Summary of the invention:
1, object: the object of the invention is the vacancy for prior art, proposes a kind of method that holard is automatically sampled and automatically monitored.The present invention utilizes negative-pressure penetration method and Multifunctional water automatic tester to realize monitoring with automatic the automatic sampling of the holard, can save a large amount of artificial samples and measuring time.Add solar energy system, range of application of the present invention is more extensive.
2, technical scheme: for achieving the above object, the technical scheme set by the present invention is:
The method that the holard is automatically sampled and automatically monitored, the method concrete steps are as follows:
Step 1, be embedded in by sampling probe in predetermined soil layer, the pre-buried degree of depth is generally 15 ~ 100cm, and sampling probe is connected with sampling bottle by pvb pipe.
Step 2, controls the automatic operation of intelligent vacuum pump by time switch, intelligent vacuum pump is selected " limit " work pattern, and when air pressure in sampling jar reaches 0.6 atmospheric pressure, intelligent vacuum pump is automatically out of service.
Step 3, sampling bottle favorable sealing property, maintains 0.6 atmospheric pressure 5 ~ 6 hours, makes the water permeation in soil enter sampling probe, and is managed by pvb and import sampling bottle further.
Step 4, Multifunctional water automatic tester is auto injection from sampling bottle after 6 hours, automatically detects various water quality data (as ammonia nitrogen, total phosphorus and COD etc.) and record.
Wherein, automatically sampling with automatically monitor, design frequency is within one day, adopt a sample and automatically to monitor once.
Wherein, sampling bottle specification is 1L/2L sampling bottle, requires good airproof performance, can maintain the air pressure needed for sampling.Sampling bottle has three interfaces, manages (sampling probe), intelligent vacuum pump and water quality automatic tester be respectively connected with pvb.Wherein, manage with pvb the interface be connected and be positioned in the middle part of sampling bottle side, be positioned at the bottom side of sampling bottle with the interface of intelligent vacuum pump, be positioned at sampling bottle bottom side with the interface of water quality automatic tester and slightly go up.
Wherein, the intelligent vacuum pump maximum pressure chosen is 0.8 atmospheric pressure, adopts " limit " mode of operation; If setting maximum gas pressure is 0.6 atmospheric pressure, when namely sampling bottle reaches 0.6 atmospheric pressure, vacuum pump quits work, and utilizes time switch automatically to control this vacuum pump.
Wherein, setting water quality automatic tester when 17:00 from sampling bottle draw samples measure water quality, under normal circumstances, sampling probe was embedded in predetermined soil layer after 6 hours, existing about 20 ~ 35ml sample in sampling bottle.
3, advantage and effect: the method that a kind of holard of the present invention is automatically sampled and automatically monitored, its advantage is: achieve the automatic collection to holard water sample and monitoring automatically, wherein solar energy system makes suitable application region of the present invention more extensive.
Accompanying drawing explanation
Fig. 1 is the process flow diagram of this method
Fig. 2 is sampling bottle schematic diagram
Fig. 3 is that schematic diagram buried underground by sampling probe
Wherein, 1 is the interface be connected with intelligent vacuum pump, and 2 is the interface be connected with Multifunctional water automatic tester, and 3 is manage with pvb the interface be connected, and 4 is pvb pipe, and 5 is sampling probe.The scope of the depth of burying of sampling probe: 15 ~ 100cm.
Embodiment
See Fig. 1-Fig. 3, the holard of the present invention is sampled automatic monitoring method automatically, and device is by sampling system (managed by sampling probe, pvb and sampling bottle is formed), and time switch, intelligent vacuum pump, water quality automatic tester and solar energy system are formed.Sampling probe is embedded in predetermined soil horizon, is linked together with sampling bottle by pvb pipe.Sampling bottle has three interfaces.Wherein, manage with pvb the interface be connected and be positioned in the middle part of sampling bottle side, be positioned at the bottom side of sampling bottle with the interface of intelligent vacuum pump, be positioned at sampling bottle bottom side with the interface of water quality automatic tester and slightly go up.Sampling probe (sampling probe for PARNART system): aperture: 2um; Size: OD(external diameter) 21mm x L(length) 95mm; Weight: 50g; Infiltrating area: 33cm
2; Water conduction: 3.31x10-7cm/sec; Vesicle pressure: >500mb; Water-taking efficiency: 6ml/cm
2/ hr (600mb).
See Fig. 1, a kind of method that holard is automatically sampled and automatically monitored, the method concrete steps are as follows:
Step 1, is embedded in sampling probe in predetermined soil layer, and sampling probe is connected with sampling bottle by pvb pipe.
Step 2, controls the automatic operation of intelligent vacuum pump by time switch, intelligent vacuum pump is selected " limit " work pattern, and when air pressure in sampling bottle reaches 0.6 atmospheric pressure, intelligent vacuum pump is automatically out of service.
Step 3, sampling bottle maintains 0.6 atmospheric pressure 5 ~ 6 hours.Holard infiltration enters sampling probe under suction function, and is managed by pvb and import sampling bottle further.
Step 4, Multifunctional water automatic tester is auto injection from sampling bottle after 6 hours, automatically detects various water quality data (as ammonia nitrogen, total phosphorus and COD etc.) and record.
Wherein, automatically sampling with automatically monitor, design frequency is within one day, adopt a sample and automatically to monitor once.
Wherein, sampling bottle specification is 1L/2L sampling bottle, requires favorable sealing property, can maintain the air pressure needed for sampling.Sampling bottle has 3 interfaces, manages (sampling probe), intelligent vacuum pump and water quality automatic tester be respectively connected with pvb.Wherein, manage with pvb the interface be connected and be positioned in the middle part of sampling bottle side, be positioned at the bottom side of sampling bottle with the interface of intelligent vacuum pump, be positioned at sampling bottle bottom side with the interface of water quality automatic tester and slightly go up.
Wherein, the intelligent vacuum pump maximum pressure chosen is 0.8 atmospheric pressure, adopts " limit " mode of operation; Setting maximum gas pressure is 0.6 atmospheric pressure, and when namely sampling bottle reaches 0.6 atmospheric pressure, vacuum pump quits work.Time switch is utilized to control automatic operation and the stopping of intelligent vacuum pump.
Wherein, set water quality automatic tester and measure water quality at 17:00 draw samples from sampling bottle.Generally, sampling bottle maintained 0.6 atmospheric pressure after 6 hours, and sampling bottle has about drawn 20 ~ 35ml holard sample.
Automatically the sample process of method of automatically monitoring of the holard comprises:
(1) pre-buried sampling probe.Pre-buried depth range is 15 ~ 100cm.
(2) the automatic operation of intelligent vacuum pump is controlled by time switch.Arranging the time switch automatic switching on time is 11:00, i.e. every 11:00, intelligent vacuum pump brings into operation automatically.Meanwhile, arranging the time of automatically closing is 11:05.
(3) intelligent vacuum pump is selected " limit mode ".Arranging maximum pressure is 0.6 atmospheric pressure, and when namely the air pressure of sampling bottle reaches 0.6 atmospheric pressure, intelligent vacuum pump is automatically out of service.
(4) sampling bottle sample introduction.Air pressure in sampling bottle maintains 0.6 atmospheric pressure, and the holard enters sampling bottle under atmospheric pressure effect, and this stage needs lasting 5 ~ 6 hours.
(5) water sample water quality detection.Multifunctional water automatic tester setting auto injection time 17:00, sample injection time is spaced apart 24 hours.Detection water-quality guideline comprises: conventional five parameters (pH etc.), chemical oxygen demand (COD) (COD), permanganate index, total organic carbon (TOC), ammonia nitrogen, total nitrogen and total phosphorus etc., selects different testing indexs as required.
(6) Multifunctional water automatic tester record preserve the various water quality datas of water sample.
(7) complete after one-time detection, within second day, 11:00 intelligent vacuum pump is run again automatically.First the water sample remained in sampling bottle is taken away, then start to manufacture negative pressure in sampling bottle.Repeat step (3) ~ step (6) afterwards.
(8) because sampling bottle cannot clean automatically, need manual cleaning or replace sampling bottle, advising about 7 days once.
As from the foregoing, the present invention is the automatic sampling automatic monitoring method of the holard.The present invention completes the automatic sampling of the holard by time switch, intelligent vacuum pump and sampling bottle, detects water quality by Multifunctional water automatic tester auto injection.The present invention can save holard sampling and the plenty of time required for measuring, is applicable to the region of the holard compared with horn of plenty.The present invention adds solar energy system, applicable equally in remote districts.
Claims (1)
1. the holard is sampled and a method of monitoring automatically automatically, it is characterized in that: the method device used is made up of sampling system, time switch, intelligent vacuum pump, water quality automatic tester and solar energy system;
Sampling system is managed by sampling probe, pvb and sampling bottle is formed;
Sampling probe is embedded in predetermined soil horizon, is linked together with sampling bottle by pvb pipe; Sampling bottle has three interfaces; Wherein, manage with pvb the interface be connected and be positioned in the middle part of sampling bottle side, be positioned at the bottom side of sampling bottle with the interface of intelligent vacuum pump, be positioned on sampling bottle bottom side with the interface of water quality automatic tester; Sampling probe is the sampling probe of PARNART system; Its aperture: 2um; External diameter OD 21mm; Length L95mm; Weight 50g; Infiltrating area 33cm
2; Water conduction 3.31x10-7cm/sec; Vesicle pressure >500mb; Water-taking efficiency 6ml/cm
2/ hr;
The method concrete steps are as follows:
Step 1, is embedded in sampling probe in predetermined soil layer, and sampling probe is connected with sampling bottle by pvb pipe;
Step 2, controls the automatic operation of intelligent vacuum pump by time switch, intelligent vacuum pump is selected " limit " work pattern, and when air pressure in sampling bottle reaches 0.6 atmospheric pressure, intelligent vacuum pump is automatically out of service;
Step 3, sampling bottle maintains 0.6 atmospheric pressure 5 ~ 6 hours; Holard infiltration enters sampling probe under suction function, and is managed by pvb and import sampling bottle further;
Step 4, Multifunctional water automatic tester is auto injection from sampling bottle after 6 hours, automatically detects various water quality data and record;
Wherein, automatically sampling with automatically monitor, design frequency is within one day, adopt a sample and automatically to monitor once;
Wherein, sampling bottle specification is 1L/2L sampling bottle, requires favorable sealing property, can maintain the air pressure needed for sampling; Sampling bottle has 3 interfaces, manages respectively, intelligent vacuum pump and water quality automatic tester be connected with pvb; Wherein, manage with pvb the interface be connected and be positioned in the middle part of sampling bottle side, be positioned at the bottom side of sampling bottle with the interface of intelligent vacuum pump, be positioned on sampling bottle bottom side with the interface of water quality automatic tester;
Wherein, the intelligent vacuum pump maximum pressure chosen is 0.8 atmospheric pressure, adopts " limit " mode of operation; Setting maximum gas pressure is 0.6 atmospheric pressure, and when namely sampling bottle reaches 0.6 atmospheric pressure, vacuum pump quits work; Time switch is utilized to control automatic operation and the stopping of intelligent vacuum pump;
Wherein, set water quality automatic tester and measure water quality at 17:00 draw samples from sampling bottle; Sampling bottle maintained 0.6 atmospheric pressure after 6 hours, and sampling bottle has about drawn 20 ~ 35ml holard sample;
The process of the method that the holard is automatically sampled and automatically monitored comprises:
(1) pre-buried sampling probe; Pre-buried depth range is 15 ~ 100cm;
(2) the automatic operation of intelligent vacuum pump is controlled by time switch; Arranging the time switch automatic switching on time is 11:00, i.e. every 11:00, and intelligent vacuum pump brings into operation automatically; Meanwhile, arranging the time of automatically closing is 11:05;
(3) intelligent vacuum pump is selected " limit mode "; Arranging maximum pressure is 0.6 atmospheric pressure, and when namely the air pressure of sampling bottle reaches 0.6 atmospheric pressure, intelligent vacuum pump is automatically out of service;
(4) sampling bottle sample introduction; Air pressure in sampling bottle maintains 0.6 atmospheric pressure, and the holard enters sampling bottle under atmospheric pressure effect, and this stage needs lasting 5 ~ 6 hours;
(5) water sample water quality detection; Multifunctional water automatic tester setting auto injection time 17:00, sample injection time is spaced apart 24 hours; Detection water-quality guideline comprises: conventional five parameters, chemical oxygen demand (COD), permanganate index, total organic carbon, ammonia nitrogen, total nitrogen and total phosphorus, selects different testing indexs as required;
(6) Multifunctional water automatic tester record preserve the various water quality datas of water sample;
(7) complete after one-time detection, within second day, 11:00 intelligent vacuum pump is run again automatically; First the water sample remained in sampling bottle is taken away, then start to manufacture negative pressure in sampling bottle; Repeat (3) ~ (6) afterwards;
(8) because sampling bottle cannot clean automatically, need manual cleaning or replace sampling bottle, about 7 days once.
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| CN201210593003.1A CN102998148B (en) | 2012-12-31 | 2012-12-31 | Soil water automatic sampling and monitoring method |
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| CN102998148B true CN102998148B (en) | 2014-12-31 |
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| CN107560894A (en) * | 2017-09-29 | 2018-01-09 | 北京东方园林环境股份有限公司 | A kind of unmanned plane device to keep sample automatically for water quality and the method that keeps sample |
| CN107560892A (en) * | 2017-09-29 | 2018-01-09 | 北京东方园林环境股份有限公司 | A kind of unmanned plane device sampled automatically for water quality and the method for sampling |
| CN112816265A (en) * | 2021-01-06 | 2021-05-18 | 中国电建集团贵阳勘测设计研究院有限公司 | Automatic time-sharing collection device for rice field leakage water |
Citations (5)
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|---|---|---|---|---|
| JPH116826A (en) * | 1997-06-16 | 1999-01-12 | Kurimoto Ltd | Water quality monitoring system |
| CN102128734A (en) * | 2010-12-14 | 2011-07-20 | 北京师范大学 | Automatic sampler for soil solution on different soil depths |
| KR20120034955A (en) * | 2010-10-04 | 2012-04-13 | 코오롱글로벌 주식회사 | Wireless type underwater monitering system using solar energy |
| CN102607679A (en) * | 2012-03-23 | 2012-07-25 | 山东农业大学 | Real-time soil moisture weight and percolating water quality monitoring system |
| CN102759463A (en) * | 2012-08-03 | 2012-10-31 | 北京师范大学 | System and method for soil solution sampling |
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2012
- 2012-12-31 CN CN201210593003.1A patent/CN102998148B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH116826A (en) * | 1997-06-16 | 1999-01-12 | Kurimoto Ltd | Water quality monitoring system |
| KR20120034955A (en) * | 2010-10-04 | 2012-04-13 | 코오롱글로벌 주식회사 | Wireless type underwater monitering system using solar energy |
| CN102128734A (en) * | 2010-12-14 | 2011-07-20 | 北京师范大学 | Automatic sampler for soil solution on different soil depths |
| CN102607679A (en) * | 2012-03-23 | 2012-07-25 | 山东农业大学 | Real-time soil moisture weight and percolating water quality monitoring system |
| CN102759463A (en) * | 2012-08-03 | 2012-10-31 | 北京师范大学 | System and method for soil solution sampling |
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