CN1648659B - Negative pressure atmospheric transport device for COD on-line monitoring analyzer - Google Patents
Negative pressure atmospheric transport device for COD on-line monitoring analyzer Download PDFInfo
- Publication number
- CN1648659B CN1648659B CN 200510049052 CN200510049052A CN1648659B CN 1648659 B CN1648659 B CN 1648659B CN 200510049052 CN200510049052 CN 200510049052 CN 200510049052 A CN200510049052 A CN 200510049052A CN 1648659 B CN1648659 B CN 1648659B
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- CN
- China
- Prior art keywords
- solenoid valve
- bit triplet
- triplet solenoid
- cod
- line monitoring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 238000012544 monitoring process Methods 0.000 title claims abstract description 17
- 230000029087 digestion Effects 0.000 claims description 24
- 230000005540 biological transmission Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000007788 liquid Substances 0.000 abstract description 26
- 238000005260 corrosion Methods 0.000 abstract description 3
- 230000007797 corrosion Effects 0.000 abstract description 3
- 238000012423 maintenance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Sampling And Sample Adjustment (AREA)
Abstract
The negative pressure transport device for on-line COD monitoring analyzer includes sampler (mixing chamber), slaking unit, condensing pipe, detecting unit, liquid exhausting chamber, vacuum pump, and 3 two-position three-way solenoid valves connected via pipeline. By means of the vacuum pump as the driving unit and the 3 two-position three-way solenoid valves for gas path control, certain pressure gradient is formed between the mixing chamber and the slaking unit to transmit liquid from the mixing chamber to the slaking unit without being transmitted to other containers to avoid corrosion.
Description
Technical field:
The present invention relates to a kind of COD on-line monitoring analyser transmitting device, belong to chemical analysis and environmental technology field.
Background technology:
At present, the liquid road transmitting device that the COD on-line detector adopts generally is the liquid road transmission mode by pump or solenoid control, this liquid road transmission mode makes the extremely strong digestion solution of corrosivity produce and directly contact with the pump that is adopted, control valve device, like this, both be unfavorable for the transmission of liquid, be unfavorable for the anticorrosion of instrument and maintenance again.In addition, owing in the liquid transfer process, easily deposit raffinate in the liquid line, and on pipeline, form incrustation easily, can have a strong impact on the accuracy that detects data.
Summary of the invention:
In view of the problem of above-mentioned existence, the purpose of this invention is to provide a kind of COD on-line monitoring analyser negative pressure atmospheric transport device.This negative pressure atmospheric transport device can thoroughly solve COD on-line monitoring analyser in the transmission course of liquid road, the extremely strong digestion solution of corrosivity produces and directly contacts with the pump that is adopted, control valve device, thereby solved effectively in the COD on-line monitoring analyser liquid transfer process, digestion solution is anticorrosion for instrument, reduced workload, guaranteed the accuracy of instrument detecting data instrument maintenance.
For achieving the above object, the present invention has taked following technical measures:
COD on-line monitoring analyser negative pressure atmospheric transport device of the present invention comprises that sample introduction container (mixing chamber), digestion device, condenser pipe, pick-up unit, discharge opeing chamber, vacuum pump, three two-bit triplet solenoid valves and respective line are formed by connecting.With the power device of vacuum pump, and carry out the switching controls of gas circuit by three two-bit triplet solenoid valves as transmission.Transmission between mixing chamber and digestion device adopts vacuum pump to carry out, and bleeds from the digestion device top, forms a barometric gradient between mixing chamber and digestion device two containers, thus with the liquid transfer in the mixing chamber in digestion device.Adopting this mode to make digestion device inner is negative pressure state, has guaranteed that thus the liquid that can not that is transmitted is transferred in other containers, has avoided the direct contact of strongly corrosion liquid to each pump of liquid road, valve, has reduced the maintenance workload and the operating cost of instrument.
Description of drawings:
Fig. 1 is a structural representation of the present invention
Fig. 2 is the structural representation of digestion device of the present invention
Among the figure: 1-sample introduction container or mixing chamber 2-digestion device 3-condenser pipe 4-pick-up unit 5-discharge opeing chamber 6-vacuum pump 7-two-bit triplet solenoid valve 8-two-bit triplet solenoid valve 9-two-bit triplet solenoid valve 10-hydraulic pressure transducer 11-cooling chamber 12-opening 13-liquid transfer water inlet pipe 14-liquid transfer rising pipe
Embodiment:
Below in conjunction with accompanying drawing, concrete structure of the present invention and embodiment are elaborated:
COD on-line monitoring analyser negative pressure atmospheric transport device comprises that sample introduction container or mixing chamber 1, digestion device 2, condenser pipe 3, pick-up unit 4, discharge opeing chamber 5, vacuum pump 6 and two-bit triplet solenoid valve 7, two-bit triplet solenoid valve 8, two-bit triplet solenoid valve 9 and respective line are formed by connecting.Negative pressure atmospheric transport device is with the power device of vacuum pump 6 as transmission; Vacuum pump 6 is connected with the open top and the pick-up unit 4 of digestion device 2 respectively by two-bit triplet solenoid valve 8, two-bit triplet solenoid valve 9 and two-bit triplet solenoid valve 7, and carries out switching controls by two-bit triplet solenoid valve 7, two-bit triplet solenoid valve 8 and 9 pairs of gas circuits of two-bit triplet solenoid valve.
Digestion device 2 in the COD on-line monitoring analyser negative pressure atmospheric transport device is a tubular structure, is divided into two parts up and down; Its top is double cavity structure, and its exocoel is provided with cooling chamber 11, and the top is provided with opening 12.Opening 12 is connected with vacuum pump 6 through two-bit triplet solenoid valve 9, two-bit triplet solenoid valve 8 by pipeline.Digestion device 2 adopting quartz glass material have the corrosive nature of good thermal stability and high temperature resistant, anti-strong acid, strong oxidation material.
Hydraulic pressure transducer 10 in the COD on-line monitoring analyser negative pressure atmospheric transport device is an induction element, and hydraulic pressure transducer 10 is connected with condenser pipe 3 with digestion device 2 respectively, and the pressure that is used for sensing digestion device 2 and condenser pipe 3 changes.
Concrete working method of the present invention is achieved like this:
COD on-line monitoring analyser negative pressure atmospheric transport device provides power by vacuum pump 6, carry out the switching controls of gas circuit by two-bit triplet solenoid valve 8, two-bit triplet solenoid valve 9 and two-bit triplet solenoid valve 7, make in the digestion device 2 and be attached thereto in the pipeline that connects to produce negative pressure.At this moment, under the effect of the negative pressure that the liquid to be detected in sample introduction container or the mixing chamber 1 is produced in digestion device 2, cleared up in the liquid transfer water inlet pipe 13 suction digestion devices 2, through the liquid after clearing up, enter condenser pipe 3 through liquid transfer rising pipe 14, after condenser pipe 3 cooling, enter pick-up unit 4 and detect, the liquid after the detection through pipeline transportation to discharge opeing chamber 5, then, by 5 effluent discharges of discharge opeing chamber.
Because COD on-line monitoring analyser liquid delivery device of the present invention, the silica glass material that has well high temperature resistant, anti-strong acid, strong oxidation material corrosive nature from the liquid transfer to be checked in the mixing chamber to employing is made in the digestion device, be in negative pressure state always, and guaranteed that the liquid that can not that is transmitted is transferred in other containers or the controlling parts, so avoided the direct contact of strongly corrosion liquid effectively, reduced the maintenance workload and the operating cost of instrument to each pump of liquid road, valve.
Claims (3)
1. COD on-line monitoring analyser transmitting device, comprise sample introduction container or mixing chamber (1), digestion device (2), condenser pipe (3), pick-up unit (4), discharge opeing chamber (5), the vacuum pump (6) and the first two-bit triplet solenoid valve (7), the second two-bit triplet solenoid valve (8), the 3rd two-bit triplet solenoid valve (9) and respective line are formed by connecting, it is characterized in that this COD on-line monitoring analyser transmitting device is with the power device of vacuum pump (6) as transmission, vacuum pump (6) is by the second two-bit triplet solenoid valve (8), the 3rd two-bit triplet solenoid valve (9) is connected with the open top and the pick-up unit (4) of digestion device (2) respectively with the first two-bit triplet solenoid valve (7), and by the first two-bit triplet solenoid valve (7), the second two-bit triplet solenoid valve (8), the 3rd two-bit triplet solenoid valve (9) carries out switching controls to gas circuit.
2. COD on-line monitoring analyser transmitting device according to claim 1 is characterized in that described digestion device (2) is a tubular structure, is divided into two parts up and down, and its top is double cavity structure, and its exocoel is provided with cooling chamber (11), and the top is provided with opening (12).
3. COD on-line monitoring analyser transmitting device according to claim 2 is characterized in that described digestion device (2) adopting quartz glass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049052 CN1648659B (en) | 2005-02-05 | 2005-02-05 | Negative pressure atmospheric transport device for COD on-line monitoring analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200510049052 CN1648659B (en) | 2005-02-05 | 2005-02-05 | Negative pressure atmospheric transport device for COD on-line monitoring analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1648659A CN1648659A (en) | 2005-08-03 |
| CN1648659B true CN1648659B (en) | 2010-08-11 |
Family
ID=34876516
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200510049052 Expired - Lifetime CN1648659B (en) | 2005-02-05 | 2005-02-05 | Negative pressure atmospheric transport device for COD on-line monitoring analyzer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1648659B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115436303A (en) * | 2022-09-27 | 2022-12-06 | 盐城工学院 | An integrated water quality COD detection device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2013883A (en) * | 1978-02-01 | 1979-08-15 | Siemens Ag | Reaction vessel for use in water analysis apparatus |
| CN2110876U (en) * | 1991-01-26 | 1992-07-22 | 新会县医疗器械厂 | Flow injection analysis-chemical oxygen demand measurer |
| CN2185437Y (en) * | 1994-01-14 | 1994-12-14 | 江苏省环境科学研究所 | Automatic tester for chemical oxygen demand of sewage |
| CN2779400Y (en) * | 2005-02-05 | 2006-05-10 | 浙江小桥流水环境科技有限公司 | Negative pressure air pressure transmission device for COD online monitoring&analyzing instrument |
-
2005
- 2005-02-05 CN CN 200510049052 patent/CN1648659B/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2013883A (en) * | 1978-02-01 | 1979-08-15 | Siemens Ag | Reaction vessel for use in water analysis apparatus |
| CN2110876U (en) * | 1991-01-26 | 1992-07-22 | 新会县医疗器械厂 | Flow injection analysis-chemical oxygen demand measurer |
| CN2185437Y (en) * | 1994-01-14 | 1994-12-14 | 江苏省环境科学研究所 | Automatic tester for chemical oxygen demand of sewage |
| CN2779400Y (en) * | 2005-02-05 | 2006-05-10 | 浙江小桥流水环境科技有限公司 | Negative pressure air pressure transmission device for COD online monitoring&analyzing instrument |
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| Publication number | Publication date |
|---|---|
| CN1648659A (en) | 2005-08-03 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20060714 Address after: The city of Hangzhou City, Zhejiang province Zhaohui Road No. 35 Applicant after: ZHEJIANG XIAOQIAOLIUSHUI ENVIRONMENTAL SCIENCE AND TECHNOLOGY CO.,LTD. Address before: Room 1, unit 25, Kaiyuan Road, 402, Zhejiang, Hangzhou Applicant before: Jin Chen Co-applicant before: Chen Ming Co-applicant before: Teng Donghua Co-applicant before: Su Wen |
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| C10 | Entry into substantive examination | ||
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| C14 | Grant of patent or utility model | ||
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Granted publication date: 20100811 |
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| CX01 | Expiry of patent term |