CN101701883A - Sampling device for analyzer and sampling analysis and control method - Google Patents
Sampling device for analyzer and sampling analysis and control method Download PDFInfo
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- CN101701883A CN101701883A CN200910227193A CN200910227193A CN101701883A CN 101701883 A CN101701883 A CN 101701883A CN 200910227193 A CN200910227193 A CN 200910227193A CN 200910227193 A CN200910227193 A CN 200910227193A CN 101701883 A CN101701883 A CN 101701883A
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Abstract
The invention provides a sampling device for an analyzer and a sampling analysis and control method. The sampling device for the analyzer comprises a sampling tank and a sampling pipeline, wherein the sampling pipeline comprises a plurality of paths of branch pipelines which are independently connected into the sampling tank, and each branch pipeline in the sampling pipeline is respectively provided with a sampling valve connected with a controller; and a sample discharging valve which is connected into a liquid discharging pipeline is arranged at the bottom of the sampling tank. The sampling analysis and control method corresponding to the sampling device for the analyzer automatically controls the switches of the sampling valve and the sample discharging valve through the controller according to the preset sequence and time to achieve the purpose of sampling measurement of a plurality of process point parameters by using one analyzer and one sampling tank, thereby effectively reducing investment cost, maintenance cost and production energy consumption.
Description
Technical field:
The present invention relates to industrial automation control field, specifically is a kind of sampler and sample analysis control method of analyser.
Background technology:
The analysis meter that is used for on-line measurement is used quite extensive at chemical field.At present, the external import analysis meter of the general employing of the conventional analysis meter that uses.And the single-point separate unit instrument measurement that each import analysis meter is all taked, the online measurement point 6 of every increase by one cover, then need to increase an analyser 4 and sampling jar 1, carry out corresponding sample analysis, increased production cost and maintenance cost greatly by opening manual sample valve 7.
For example, as shown in Figure 1, the Water Treatment production line is equipped with online silicon meter and hardness analysis instrument, and according to conventional design, each silicate ion and hardness measurement point all need to be equipped with an analytical instrument and to a measurement passage that should analytical instrument.Accordingly, each measurement point is equipped with separate sampling, analysis and output loop on hardware.When needs increase the online measurement point of a cover, then need the extra analyser that increases to carry out sampling analysis.Because the price of import analyser is very expensive, and in practice, process parameter measurement does not need continuous coverage, analysis meter does not reach good value, is unfavorable for saving cost and cuts down the consumption of energy.
Summary of the invention
Defective at above-mentioned prior art existence, purpose of the present invention aims to provide a kind of sampler and sample analysis control method that is used for analyser, to realize the sampling and measuring of an analyser, effectively reduce cost of investment, maintenance cost and energy consumption to a plurality of process point parameters.
For achieving the above object, the base case that the present invention takes is,
A kind of sampler that is used for analyser, comprise sampling jar and sampling pipe, the invention is characterized in that described sampling pipe comprises that multichannel independently inserts the bypass line of this sampling jar, each bypass line is respectively equipped with the sample valve that is connected with controller in the described sampling pipe; Described sampling jar bottom is provided with the stock layout valve that inserts Drainage pipe.
Based on above-mentioned foundation structure, for ease of sampling jar discharge opeing fast, preferred version of the present invention is, described sampling jar is a narrow reverse taper shape at the bottom of the top width, and 8～30 ° of taperings, end height ratio are 0.2～1.0.
According to embodiment, the optimum seeking site scheme that described sampling pipe inserts sampling jar is, the distance of the delivery outlet of described sampling pipe and top and bottom is than being 0.1～0.5.
For the ease of operating and making analysis result more directly perceived, described controller is connected to input-output unit, is preferably DCS active station interface according to embodiment, is convenient to the real-time input of control commands of operator, and the sense analysis data.
Accordingly, the present invention also provides a kind of sample analysis control method that is used for analyser, and it comprises the steps:
1) flushing:
Close the stock layout valve; According to the sampling order of setting, open the sample valve of having selected on the pipeline, corresponding liquid stream rotates in the sampling jar along the sampling jar inwall, delays time to overflow situation; Open the stock layout valve, delay time to the sampling jar emptying;
2) feed liquor:
Close the stock layout valve, delaying time to sampling jar is in overflow situation;
3) analysis to measure:
By controller control survey module the liquid in the sampling jar is taken a sample, and open to measure passage, measurement data is delivered to the controller analyzing and processing, arrive to Measuring Time;
4) discharge opeing:
Close the measurement passage, keep current measured value; Controller control stock layout valve is opened, and gets rid of the last waste liquid of measuring;
5) choose next bar sampling line in proper order by setting, return step 1), the circulation above-mentioned steps is closed up to the cycle controller function.
Preferred version is to carry out 2～4 to repeat flushing in the flushing process.Can eliminate or reduce because of test solution is last time all cleaned and finish, and to the interference of liquid testing result to be measured.
Sampler and its corresponding sample analysis control method that is used for analyser of the present invention, by taking the method for multichannel sampling pipe cycle sampling, realize that an analysis meter can realize the Measurement and analysis to a plurality of process point parameters, cost of investment and maintenance cost have been saved so greatly, not only economy but also practicality.
Description of drawings
Fig. 1 is a schematic diagram of device of the prior art;
Fig. 2 is a schematic diagram of device of the present invention;
Fig. 3 is the FB(flow block) of control method of the present invention.
Embodiment
Embodiment:
As shown in Figure 2, present embodiment provides a kind of sampler that is used for Water Test Kits, comprises sampling jar 1 and sampling pipe, and wherein sampling jar 1 is a narrow reverse taper shape at the bottom of the top width, and 10.5 ° of taperings, end height ratio are 0.275.Described sampling pipe comprises that multichannel independently inserts the bypass line 2 of this sampling jar 1, and each bypass line 2 is respectively equipped with the sampling solenoid valve 3 that is connected with controller in the described sampling pipe; Described sampling jar bottom is provided with the stock layout valve 8 that inserts Drainage pipe.The delivery outlet of described sampling pipe in the distance of top and bottom than being 0.1～0.5 interval the arrangement.Liquid flow path direction and radial angle＜90 °, liquid flow path direction level are slightly downwards.The open top overflow, overflow liquid is concentrated at the bottom catch tray.
Controller in the present embodiment is made up by the DCS control function module, as input media and output unit, is used for real-time input of control commands, operation display interface and analysis data with the DCS active station.
Sampling jar and analyser 4 supporting uses in the above-mentioned sampler, described analyser 4 inserts above-mentioned sampling jar 1 by measuring channel 5, and the liquid stream in the sampling jar is carried out analysis to measure.
With the corresponding sample analysis control method of above-mentioned sampler is to work out the DCS control program according to requirement of actual working condition, and via controller controls each ducted solenoid valve and realizes the cycle sampling of a shared analyser to multichannel measurement point, and the operating process of described automatic sample analysis is:
The DCS operator station demonstrates the control interface, and whether prompting selects the automatic sampling and measuring of multichannel for use.The optional "No" of operator is only carried out single channel and is measured; Or select "Yes", enter the automatic sampling and measuring state of multichannel, as shown in Figure 3:
1, injects liquid to be taken a sample, clean the sampling jar inwall, interfere with each other with the test solution that prevents different measuring points.
2, after the discharging cleaning process was finished, controller was controlled the opening time and the unlatching duration of the solenoid valve of corresponding sampling pipe, reaches punctual capacity and introduces measured medium.
3, because the Measurement and analysis of Water Test Kits can be provided with the cycle, after the user is provided with feed liquor and finishes according to working condition requirement, the online beginning continuous coverage of the measurement passage 30S that is connected with analyser.Because measuring in advance can waste measurement standard liquid, postponement may influence the measurement result accuracy, therefore needs to select suitable time-delay to reach the most economical efficient of analysis meter to be used.Another that is provided with in the analyser this moment measured passage and is in redundant standby state.
4, measure end when Water Test Kits, data feed back to the controller inner analysis and handle, and demonstrate analysis result by the output unit that is attached thereto.Simultaneously, controller control stock layout valve begins to carry out discharge opeing, and the automatic measurement of finishing first measurement point finishes.
5, controller control enters the measurement state of the automatic water analysis of second measurement point, repeats step last time, circulates with this, realizes automatic multi-path cycle analysis measurement.
Analyser does not limit to and is formed on Water Test Kits described in the present embodiment among the present invention, also can be used for other similar analysis instrument, for example uses carbonated drink conductivity analyser, flue gas analyzer or the like more widely in power plant.Every Apparatus and method for of sampler of the present invention and sample analysis control method that adopted all belongs to protection domain of the present invention.
Claims (6)
1. sampler that is used for analyser, comprise sampling jar and sampling pipe, it is characterized in that described sampling pipe comprises that multichannel independently inserts the bypass line of this sampling jar, each bypass line is respectively equipped with the sample valve that is connected with controller in the described sampling pipe; Described sampling jar bottom is provided with the stock layout valve that inserts Drainage pipe.
2. according to the described sampler that is used for analyser of claim 1, it is characterized in that described sampling jar is a narrow reverse taper shape at the bottom of the top width, 8～30 ° of taperings, end height ratio are 0.2～1.0.
3. according to the described sampler that is used for analyser of claim 1, it is characterized in that the distance of the delivery outlet of described sampling pipe and top and bottom is than being 0.1～0.5.
4. according to the described sampler that is used for analyser of one of claim 1-3, it is characterized in that described controller is connected with input-output unit.
5. sample analysis control method that is used for analyser is characterized in that:
Set in advance opening sequence, time and the cycle of each sample valve or stock layout valve in the controller; Control corresponding sample valve or stock layout valve events according to opening time and the cycle set by controller again, realize the break-make of this sample valve place sampling pipe, corresponding liquid stream is taken a sample and stock layout control, comprise the steps:
1) flushing:
Close the stock layout valve; According to the sampling order of setting, open the sample valve on the sampling line of having selected, corresponding liquid stream rotates in the sampling jar along the sampling jar inwall, delays time to overflow situation; Open the stock layout valve, delay time to the sampling jar emptying;
2) feed liquor:
Close the stock layout valve, delaying time to sampling jar is in overflow situation;
3) analysis to measure:
By controller control survey module the liquid in the sampling jar is taken a sample, and open to measure passage, measurement data is delivered to the controller analyzing and processing, arrive to Measuring Time;
4) discharge opeing:
Close the measurement passage, keep current measured value; Controller control stock layout valve is opened, and gets rid of the last waste liquid of measuring;
5) choose next bar bypass line in the sampling pipe in proper order by setting, return step 1), the circulation above-mentioned steps is closed up to the cycle controller function.
6. according to the described sample analysis control method that is used for analyser of claim 5, it is characterized in that: described flushing process is to repeat flushing for 2～4 times.
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| Application Number | Priority Date | Filing Date | Title |
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| CN200910227193A CN101701883A (en) | 2009-12-11 | 2009-12-11 | Sampling device for analyzer and sampling analysis and control method |
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| CN200910227193A CN101701883A (en) | 2009-12-11 | 2009-12-11 | Sampling device for analyzer and sampling analysis and control method |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915824A (en) * | 2010-08-05 | 2010-12-15 | 哈尔滨工业大学 | Fast inspection device of effluent quality of immersed type membrane pond |
| CN104677687A (en) * | 2015-03-27 | 2015-06-03 | 山东钢铁股份有限公司 | Industrial liquid sampling device and industrial liquid sampling method |
| CN105223254A (en) * | 2015-11-16 | 2016-01-06 | 云南华联锌铟股份有限公司 | A kind of sampling pre-service and multithread road switch PH measurement mechanism |
| CN107543908A (en) * | 2017-09-13 | 2018-01-05 | 如皋福大工程技术研究院有限公司 | A kind of cultivation water pH value detection means and detection method |
| CN108057392A (en) * | 2017-09-27 | 2018-05-22 | 钦州市创华工控设备有限公司 | Pressure type lime milk concentration online detection and control system |
| CN109444371A (en) * | 2018-12-30 | 2019-03-08 | 广东新大禹环境科技股份有限公司 | A kind of liquid monitoring system and method |
| CN110836790A (en) * | 2019-11-18 | 2020-02-25 | 核工业北京化工冶金研究院 | Multi-channel automatic measuring device and method for centralized control room of in-situ leaching uranium mining area |
| CN111207960A (en) * | 2020-03-23 | 2020-05-29 | 江苏辐环环境科技有限公司 | Novel liquid sampling device |
| CN111607499A (en) * | 2020-06-02 | 2020-09-01 | 山东省科学院生物研究所 | Automatic sampling device and method for fermentation tank with multi-machine sharing sampling interface |
| CN115452472A (en) * | 2022-10-31 | 2022-12-09 | 山东天弘化学有限公司 | Petrochemical pipeline under-pressure detection sampling device and application method thereof |
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2009
- 2009-12-11 CN CN200910227193A patent/CN101701883A/en active Pending
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101915824A (en) * | 2010-08-05 | 2010-12-15 | 哈尔滨工业大学 | Fast inspection device of effluent quality of immersed type membrane pond |
| CN104677687A (en) * | 2015-03-27 | 2015-06-03 | 山东钢铁股份有限公司 | Industrial liquid sampling device and industrial liquid sampling method |
| CN104677687B (en) * | 2015-03-27 | 2017-04-19 | 山东钢铁股份有限公司 | Industrial liquid sampling device and industrial liquid sampling method |
| CN105223254A (en) * | 2015-11-16 | 2016-01-06 | 云南华联锌铟股份有限公司 | A kind of sampling pre-service and multithread road switch PH measurement mechanism |
| CN105223254B (en) * | 2015-11-16 | 2017-08-29 | 云南华联锌铟股份有限公司 | One kind sampling pretreatment and many streams switch PH measurement apparatus |
| CN107543908A (en) * | 2017-09-13 | 2018-01-05 | 如皋福大工程技术研究院有限公司 | A kind of cultivation water pH value detection means and detection method |
| CN108057392A (en) * | 2017-09-27 | 2018-05-22 | 钦州市创华工控设备有限公司 | Pressure type lime milk concentration online detection and control system |
| CN109444371A (en) * | 2018-12-30 | 2019-03-08 | 广东新大禹环境科技股份有限公司 | A kind of liquid monitoring system and method |
| CN110836790A (en) * | 2019-11-18 | 2020-02-25 | 核工业北京化工冶金研究院 | Multi-channel automatic measuring device and method for centralized control room of in-situ leaching uranium mining area |
| CN111207960A (en) * | 2020-03-23 | 2020-05-29 | 江苏辐环环境科技有限公司 | Novel liquid sampling device |
| CN111207960B (en) * | 2020-03-23 | 2022-05-03 | 江苏辐环环境科技有限公司 | Liquid sampling device |
| CN111607499A (en) * | 2020-06-02 | 2020-09-01 | 山东省科学院生物研究所 | Automatic sampling device and method for fermentation tank with multi-machine sharing sampling interface |
| CN111607499B (en) * | 2020-06-02 | 2023-01-31 | 山东省科学院生物研究所 | Automatic sampling device and method for fermentation tank with multiple machines sharing sampling interface |
| CN115452472A (en) * | 2022-10-31 | 2022-12-09 | 山东天弘化学有限公司 | Petrochemical pipeline under-pressure detection sampling device and application method thereof |
| CN115452472B (en) * | 2022-10-31 | 2023-01-31 | 山东天弘化学有限公司 | Petrochemical pipeline under-pressure detection sampling device and application method thereof |
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Open date: 20100505 |