CN104730178A - Full-automatic online in-situ ion chromatography detecting sampling and feeding device for high pressure water supply pipeline - Google Patents
Full-automatic online in-situ ion chromatography detecting sampling and feeding device for high pressure water supply pipeline Download PDFInfo
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- CN104730178A CN104730178A CN201510113025.7A CN201510113025A CN104730178A CN 104730178 A CN104730178 A CN 104730178A CN 201510113025 A CN201510113025 A CN 201510113025A CN 104730178 A CN104730178 A CN 104730178A
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Abstract
The invention discloses a full-automatic online in-situ ion chromatography detecting sampling and feeding device for a high pressure water supply pipeline. The device comprises a pressure reduction valve, a tangential flowing ultrafiltration device and a sampling control plate, wherein the pressure reduction valve is mounted on a water supply pipeline between a main tap water pipeline and the tangential flowing ultrafiltration device; a waste liquid tube is connected to the upper end sidewall of the tangential flowing ultrafiltration device, while the lower end of the tangential flowing ultrafiltration device is connected with a collecting bottle through the water supply pipeline; a photoelectric liquid level sensor is positioned on the top part of the collecting bottle; the lower end of the collecting bottle is connected with a feeding valve on an ion chromatograph main machine through a sampling tube; a peristaltic pump is arranged on the sampling tube; the sampling control plate is electrically connected with the pressure reduction valve, the photoelectric liquid level sensor, the peristaltic pump and the ion chromatograph main machine through control lines. With the adoption of the device, the probability that a chromatographic column is blocked by impurities in water in the pipeline can be greatly reduced; the maintenance cycle of the online ion chromatograph under online in-situ detection can be reduced, and meanwhile, the use and maintenance cost of the ion chromatograph can be greatly decreased.
Description
Technical field
The present invention relates to the online original position chromatography of ions of a kind of full-automatic high-pressure water supply line detect get, sampling device, mainly being adapted to high service pipeline online original position chromatography of ions detection field, is a kind of integrating device collecting on-line period, purification, ion chromatograph sample introduction.
Background technology
Chromatography of ions is a branch of liquid chromatography, be mainly used in the detection of ionic state compound, current chromatography of ions is mainly used to the detection carrying out inorganic anion, it is advantageous that can complete different kinds of ions separation and detection simultaneously, detection sensitivity is higher, can meet the detection demand in different fields.Ion chromatographic separation post is ion chromatography core component, and the inserts of separating column is generally the scion grafting functionalization spherical resin particle of 5-10um, and resin particle is generally sealed in cylindrical tube with the inertia sieve plate of 0.22um by the two ends of particles filled post.When ion chromatograph normally works, the working pressure of ion chromatography system is generally 3-17MPa, and too high post pressure can affect the chromatogram pump life-span and analyze the stability detected.In recent years along with the raising of drinking water safety demand, and the repeatedly generation of drinking water safety accident, cause the online precision monitor demand of potable water network strongly.Ion chromatograph is one of important instrument of Drinking Water water quality detection, and singly it is to the requirement of sample degree of purity, hinders ion chromatograph and uses carrying out of work online.How solving sample in-line purification is one of key issue of using online of ion chromatograph.
Summary of the invention
The object of the invention is to solve the problems of the technologies described above, there is provided can effectively realize the online original position chromatography of ions of high service pipeline detect get, sampling device, greatly can reduce the operation and maintenance cost of maintenance period that ion chromatograph uses online and ion chromatograph simultaneously.
The technical solution used in the present invention is:
The online original position chromatography of ions of a kind of full-automatic high-pressure water supply line detects to be got, sampling device, it is characterized in that: include reduction valve, tangential flow ultra-filtration unit, sampling control panel, reduction valve is arranged on the water supply line between tap water main pipeline and tangential flow ultra-filtration unit, the upper end sidewall of tangential flow ultra-filtration unit connects sewer pipe, the lower end of tangential flow ultra-filtration unit connects receiving flask by water supply line, the top of receiving flask is placed with photoelectric liquid level sensor, the lower end of receiving flask is connected with the sampling valve on ion chromatograph main frame by sampling pipe, sampling pipe is also provided with peristaltic pump, sampling control panel is electrically connected with reduction valve, photoelectric liquid level sensor, peristaltic pump, ion chromatograph main frame by operation circuit.
The online original position chromatography of ions detection of described full-automatic high-pressure water supply line is got, sampling device, it is characterized in that: described tangential flow ultra-filtration unit includes ultrafiltration housing, ultra filtration membrane has been horizontally disposed with in ultrafiltration housing, the side of ultrafiltration housing is provided with water inlet, opposite side is communicated with sewer pipe, water (flow) direction is parallel with ultra filtration membrane, realizes the clean of ultrafiltration membrane surface while realizing ultrafiltration; The lower end of ultrafiltration housing is provided with receiving flask interface, current direction receiving flask interface after ultrafiltration.
After sampling valve in ion chromatograph main frame enters to go to sample introduction position, utilize peristaltic pump by current water sample injected system, and with current water sample as cleaning fluid flushing line, avoid the residual interference of sample introduction last time.
Advantage of the present invention is:
The present invention effectively can realize the online original position chromatography of ions of high service pipeline and detect sampling and sample introduction, greatly reduce pipeline impurities in water to the possibility of the blocking of chromatographic column, reduce the maintenance period of the online in situ detection of online ion chromatograph, the tangential flow ultra-filtration unit simultaneously adopted effectively realizes the ultrafiltration of water sample and cleaning of self, also significantly reduces the operation and maintenance cost of ion chromatograph while reducing maintenance period.
Accompanying drawing explanation
Fig. 1 is the principle schematic of apparatus of the present invention.
Fig. 2 is the schematic diagram of tangential flow ultra-filtration unit.
Embodiment
As shown in Figure 1, the online original position chromatography of ions of a kind of full-automatic high-pressure water supply line detects to be got, sampling device, include reduction valve 2, tangential flow ultra-filtration unit 3, sampling control panel 4, reduction valve 2 is arranged on the water supply line between tap water main pipeline 1 and tangential flow ultra-filtration unit 3, the upper end sidewall of tangential flow ultra-filtration unit 3 connects sewer pipe 6, the lower end of tangential flow ultra-filtration unit 3 connects receiving flask 12 by water supply line, the top of receiving flask 12 is placed with photoelectric liquid level sensor 11, the lower end of receiving flask 12 is connected with the sampling valve 8 on ion chromatograph main frame 7 by sampling pipe 10, sampling pipe 10 is also provided with peristaltic pump 9, sampling control panel 4 is electrically connected with reduction valve 2, photoelectric liquid level sensor 11, peristaltic pump 9, ion chromatograph main frame 7 by operation circuit 5.
As shown in Figure 2, tangential flow ultra-filtration unit 3 includes ultrafiltration housing 14, ultra filtration membrane 13 has been horizontally disposed with in ultrafiltration housing 14, the side of ultrafiltration housing 14 is provided with water inlet 17, opposite side is communicated with sewer pipe 6, water (flow) direction is parallel with ultra filtration membrane 13, realizes the clean of ultra filtration membrane 13 surface while realizing ultrafiltration; The lower end of ultrafiltration housing 14 is provided with receiving flask interface 16, and after ultrafiltration, water 15 flows to receiving flask interface 16.
Embodiment
1, ion chromatograph main frame 7 completes current sample analysis, and enter idle condition and notify to sample control panel 4 simultaneously, sampler enters sampling state.
2, sampling control panel 4 controls to open reduction valve 2 and tap water is introduced sampler, tap water flows to tangential flow ultra-filtration unit 3, carry out online ultrafiltration, the dense water that ultrafiltration produces containing various granule foreign discharges system through sewer pipe 6, water after ultrafiltration enters receiving flask 12 through receiving flask interface 16, and constantly accumulates wherein.
3, when the liquid level of receiving flask 12 arrives the position of photoelectric liquid level sensor 11, sampling control panel 4 starts peristaltic pump 9, peristaltic pump 9 starts to rinse sample introduction pipeline with preset flow rate, sample flows through the quantitative loop of sampling valve 8, sample control panel 4 after arriving Preset Time, notice ion chromatograph main frame 7 can realize sample feeding by switch sampling valve 8.
4, after sampling valve 8 switching, sampling control panel 4 controls to close reduction valve 2, and now peristaltic pump 9 works on liquid remaining in receiving flask 12 discharge system.
5, the residue water sample of receiving flask is got rid of rear pump trip by peristaltic pump 9 in Preset Time, and whole sampler enters idle condition, waits for that ion chromatograph main frame 7 completes current sample analysis, enters the sampling sample introduction work that idle condition restarts a new round.
Claims (2)
1. the online original position chromatography of ions of full-automatic high-pressure water supply line detects and gets, sampling device, it is characterized in that: include reduction valve, tangential flow ultra-filtration unit, sampling control panel, reduction valve is arranged on the water supply line between tap water main pipeline and tangential flow ultra-filtration unit, the upper end sidewall of tangential flow ultra-filtration unit connects sewer pipe, the lower end of tangential flow ultra-filtration unit connects receiving flask by water supply line, the top of receiving flask is placed with photoelectric liquid level sensor, the lower end of receiving flask is connected with the sampling valve on ion chromatograph main frame by sampling pipe, sampling pipe is also provided with peristaltic pump, sampling control panel is electrically connected with reduction valve, photoelectric liquid level sensor, peristaltic pump, ion chromatograph main frame by operation circuit.
2. the online original position chromatography of ions of full-automatic high-pressure water supply line according to claim 1 detect get, sampling device, it is characterized in that: described tangential flow ultra-filtration unit includes ultrafiltration housing, ultra filtration membrane has been horizontally disposed with in ultrafiltration housing, the side of ultrafiltration housing is provided with water inlet, opposite side is communicated with sewer pipe, water (flow) direction is parallel with ultra filtration membrane, and the lower end of ultrafiltration housing is provided with receiving flask interface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510113025.7A CN104730178B (en) | 2015-03-13 | 2015-03-13 | The online chromatography of ions in situ detection of full-automatic high-pressure water supply line takes, sampling device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510113025.7A CN104730178B (en) | 2015-03-13 | 2015-03-13 | The online chromatography of ions in situ detection of full-automatic high-pressure water supply line takes, sampling device |
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| CN104730178A true CN104730178A (en) | 2015-06-24 |
| CN104730178B CN104730178B (en) | 2016-10-19 |
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Citations (7)
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| JP2013210239A (en) * | 2012-03-30 | 2013-10-10 | Kurita Water Ind Ltd | Pre-treatment equipment for on-line measurement in water type, on-line measurement device using pre-treatment equipment for on-line measurement and pre-treatment method in on-line measurement and on-line measurement method using pre-treatment method |
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2015
- 2015-03-13 CN CN201510113025.7A patent/CN104730178B/en active Active
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| US20030229212A1 (en) * | 2002-04-26 | 2003-12-11 | Robert Fahrner | Non-affinity purification of proteins |
| US20090163350A1 (en) * | 2007-12-20 | 2009-06-25 | Da Costa Andre R | Heavy oil upgrade process including recovery of spent catalyst |
| JP2013210239A (en) * | 2012-03-30 | 2013-10-10 | Kurita Water Ind Ltd | Pre-treatment equipment for on-line measurement in water type, on-line measurement device using pre-treatment equipment for on-line measurement and pre-treatment method in on-line measurement and on-line measurement method using pre-treatment method |
| CN103969388A (en) * | 2014-05-13 | 2014-08-06 | 力合科技（湖南）股份有限公司 | Online perchlorate monitoring system |
| CN203965275U (en) * | 2014-06-30 | 2014-11-26 | 北京永兴精佳仪器有限公司 | A kind of system of online detection crude oil |
| CN104198749A (en) * | 2014-09-11 | 2014-12-10 | 天俱时工程科技集团有限公司 | Mounting method of sampling pipeline for online real-time detection of online analysis instrument |
| CN204514880U (en) * | 2015-03-13 | 2015-07-29 | 安徽皖仪科技股份有限公司 | The online original position chromatography of ions detection of full-automatic high-pressure water supply line is got, sampling device |
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Address after: High tech Zone Wenqu 230088 Hefei Road, Anhui province No. 8 Patentee after: ANHUI WANYI SCIENCE & TECHNOLOGY Co.,Ltd. Address before: Tianda high tech Zone 230088 Hefei Road, Anhui province No. 71 Huayi Science Park building B building Anhui instrument Patentee before: ANHUI WANYI SCIENCE & TECHNOLOGY Co.,Ltd. |
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