CN2779400Y - Negative pressure air pressure transmission device for COD online monitoring&analyzing instrument - Google Patents
Negative pressure air pressure transmission device for COD online monitoring&analyzing instrument Download PDFInfo
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- CN2779400Y CN2779400Y CN 200520100476 CN200520100476U CN2779400Y CN 2779400 Y CN2779400 Y CN 2779400Y CN 200520100476 CN200520100476 CN 200520100476 CN 200520100476 U CN200520100476 U CN 200520100476U CN 2779400 Y CN2779400 Y CN 2779400Y
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- solenoid valve
- bit triplet
- triplet solenoid
- cod
- utility
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Abstract
The utility model provides a negative pressure air pressure transmission device for a COD online monitoring and analyzing instrument. The utility model comprises a sample injection container (a mixing chamber), a digester, a condensing tube, a detection device, a liquid-discharging chamber, a vacuum pump, three two-position three-way electromagnetic valves and corresponding pipe passages, which are in mutual connection. The utility model adopts the vacuum pump as a motive power device for transmitting. The switching control of air passages can be carried out by the three two-position three-way electromagnetic valves, so that a pressure gradient can be formed between the mixing chamber and the digester, therefore the liquids in the mixing chamber can be transmitted to the digester. Adopting the mode, the inner of the digester is in the negative pressure state, therefore the utility model can ensure that the transmitted liquids can not be transmitted to other containers. The direct contact for liquid passages and each pump and each valve from liquids with strong corrosion performance can be avoided. The maintaining workload and the operating cost of the instrument can be reduced.
Description
Technical field:
The utility model relates to a kind of COD on-line monitoring analyser transmitting device, belongs 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 utility model provides 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, following technical measures have been taked in this practicality:
COD on-line monitoring analyser negative pressure atmospheric transport device described in the utility model 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 utility model
Fig. 2 is the structural representation of the utility model digestion device
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 utility model 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 utility model 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 described in the utility model, 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, a kind of 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), 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, 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 two-bit triplet solenoid valve (8), two-bit triplet solenoid valve (9) is connected with the open top and the pick-up unit (4) of digestion device (2) respectively with two-bit triplet solenoid valve (7), and by two-bit triplet solenoid valve (7), two-bit triplet solenoid valve (8), 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 200520100476 CN2779400Y (en) | 2005-02-05 | 2005-02-05 | Negative pressure air pressure transmission device for COD online monitoring&analyzing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520100476 CN2779400Y (en) | 2005-02-05 | 2005-02-05 | Negative pressure air pressure transmission device for COD online monitoring&analyzing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779400Y true CN2779400Y (en) | 2006-05-10 |
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ID=36753489
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520100476 Expired - Lifetime CN2779400Y (en) | 2005-02-05 | 2005-02-05 | Negative pressure air pressure transmission device for COD online monitoring&analyzing instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779400Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648659B (en) * | 2005-02-05 | 2010-08-11 | 浙江小桥流水环境科技有限公司 | Negative pressure atmospheric transport device for COD on-line monitoring analyzer |
| CN110470527A (en) * | 2018-05-11 | 2019-11-19 | 中国石油化工股份有限公司 | A kind of dry gas quantifies enrichment system and method |
-
2005
- 2005-02-05 CN CN 200520100476 patent/CN2779400Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1648659B (en) * | 2005-02-05 | 2010-08-11 | 浙江小桥流水环境科技有限公司 | Negative pressure atmospheric transport device for COD on-line monitoring analyzer |
| CN110470527A (en) * | 2018-05-11 | 2019-11-19 | 中国石油化工股份有限公司 | A kind of dry gas quantifies enrichment system and method |
| CN110470527B (en) * | 2018-05-11 | 2022-07-15 | 中国石油化工股份有限公司 | Dry gas quantitative enrichment system and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20060510 Effective date of abandoning: 20100811 |