CN104749336A - Positive air pressure transmission device for online water quality monitoring instrument - Google Patents
Positive air pressure transmission device for online water quality monitoring instrument Download PDFInfo
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- CN104749336A CN104749336A CN201510171893.0A CN201510171893A CN104749336A CN 104749336 A CN104749336 A CN 104749336A CN 201510171893 A CN201510171893 A CN 201510171893A CN 104749336 A CN104749336 A CN 104749336A
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Abstract
The invention discloses a positive air pressure transmission device for an online water quality monitoring instrument. The positive air pressure transmission device for the online water quality monitoring instrument comprises a peristaltic pump set, an air pump, a liquid inlet chamber, a two-position three-way solenoid valve I, a two-position three-way solenoid valve II, a high-pressure valve I, a high-pressure valve II, a reaction chamber, a waste liquid bottle and corresponding pipelines, which are connected; a sample introduction channel, a gas path channel and a common channel communicated with the reaction chamber are formed on the liquid inlet chamber; the high-pressure valve and a three-way valve are connected on the reaction chamber up and down; the air pump is used as a power transmission device, liquid feeding and draining of the reaction chamber can be realized by positive air pressure through opening of the three-way valve and the high-pressure valve, a waste liquid cannot return to the liquid inlet chamber and the contamination of a liquid inlet system is avoided. The device has a simple structure, low cost, high measurement precision, high liquid inlet and drainage speed and short measurement time and has no interference and cross contamination of inlet liquid, can be widely applied to the online water quality monitoring of various indexes requiring heating digestion, such as COD, heavy metals and the like.
Description
Technical field
The present invention relates to a kind of water quality on-line monitoring instrument malleation air pressure transmitting device, belong to chemical analysis and environmental technology field.
Background technology
At present, water quality on-line monitoring instrument adopt fluid path transmitting device with CN101294907 patent for Typical Representative, generally be and adopt peristaltic pump or syringe pump as the power source device of transmission, produce negative pressure by peristaltic pump or the running of syringe pump forward, extract the liquid from multiple valve or reaction chamber; And oppositely operate generation malleation by peristaltic pump or syringe pump, by the fluid transport from multiple valve or reaction chamber to reaction chamber or discharge opeing, thus the feed liquor of realization response room and draining function.But this fluid path transmission mode makes reacted waste liquid return feed liquor or quantitative system, waste liquid may be caused to produce feed liquor or quantitative system pollute, be unfavorable for the anticorrosion of instrument and safeguard, and the transmission time be long, cause overall measuring period longer, be unfavorable for the jump embodying on-line computing model.
Summary of the invention
In view of above-mentioned Problems existing, the object of this invention is to provide a kind of water quality on-line monitoring instrument malleation air pressure transmitting device, only with feed liquor and the discharge opeing of the existing reaction chamber of positive pressure gas compacting, thoroughly can solve monitoring water quality on line analyser in fluid path transmitting procedure, reacted waste liquid returns the problem of feed liquor or quantitative system, thus efficiently solve waste liquid to feed liquor or quantitative system generation pollution, ensure that the accuracy of instrument detection data, decrease the workload to instrument maintenance.And short because enter discharge opeing flow process, utilize positive pressure gas compacting now to enter drain age velocity fast, decrease measuring period.
For achieving the above object, this invention takes following technical scheme:
A kind of water quality on-line monitoring instrument malleation air pressure transmitting device of the present invention, comprises peristaltic pump group, pneumatic pump, intake chamber, two-bit triplet solenoid valve one, two-bit triplet solenoid valve two, high-pressure valve one, high-pressure valve two, reaction chamber, waste liquid bottle and respective line and is formed by connecting.
The power device of the design using pneumatic pump as transmission, and by the unlatching of T-valve and high-pressure valve, only with feed liquor and the discharge opeing of the existing reaction chamber of positive pressure gas compacting, and waste liquid does not return intake chamber, avoids the pollution of feed liquor system.
Air delivery side of pump described in the design is connected with a mouth in intake chamber, is also connected with a mouth on reaction chamber by two-bit triplet solenoid valve one, high-pressure valve one simultaneously; And by two-bit triplet solenoid valve one and two-bit triplet solenoid valve two, the switching control of promoting the circulation of qi road is compressed into the positive pressure gas from pneumatic pump.
Intake chamber described in the design is tubular structure, a mouth in an intake chamber is arranged at top, a lower mouth of intake chamber is arranged at bottom, and the side pipe wall of the left and right sides is provided with the collateral mouth of intake chamber, and the number of the collateral mouth of intake chamber can be determined according to the kind of the reagent of on-line computing model needs.
Peristaltic pump group described in the design pumps into reagent by the collateral mouth of intake chamber in intake chamber, and in intake chamber, a mouth is connected with air delivery side of pump; The lower mouth of intake chamber is connected with the lower mouth of high-pressure valve two and reaction chamber by two-bit triplet solenoid valve two; Intake chamber adopts heat-resisting silicon boron glass material to make, and has good thermal stability and acid-proof alkaline.
Reaction chamber described in the design is tubular structure, and a mouth on a reaction chamber is arranged at top, and a lower mouth of reaction chamber is arranged at bottom, and described reaction chamber periphery is provided with the absorbance device of heating, cooling, thermometric, measurement reactant liquor; Reaction chamber adopts silica glass material to make, and has outstanding thermal stability and high temperature resistant, high pressure resistant, strong alkali-acid resistance performance.
The normal-closed end NC of the two-bit triplet solenoid valve one described in the design is connected with outlet of air pump, and the Chang Kaiduan NO of two-bit triplet solenoid valve one is connected with air, and the common port COM of two-bit triplet solenoid valve one is connected with high-pressure valve one.
Described in the design the normal-closed end NC of two-bit triplet solenoid valve two be connected with waste liquid bottle, the Chang Kaiduan NO of two-bit triplet solenoid valve two is connected with the intake chamber of an intake chamber lower mouth, and the common port COM of two-bit triplet solenoid valve two is connected with high-pressure valve two.
Beneficial effect: the design's structure is simple, cost is low, measuring accuracy is high, enter that drain age velocity is fast, Measuring Time is short, fluid path is without interference and cross pollution.The monitoring water quality on line of the many indexes needing heating and decompose can be widely used in, as COD, heavy metal etc.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described.
(in each figure, same section label is consistent)
Fig. 1 is structural representation of the present invention.
Fig. 2 is the structural representation of intake chamber in the present invention.
Fig. 3 is the structural representation of reaction chamber in the present invention.
In figure: 1. peristaltic pump group, 2. pneumatic pump, 3. intake chamber, a mouth in 3-1. intake chamber, the lower mouth of 3-2. intake chamber, the collateral mouth of 3-3 ~ 3-6. intake chamber, 4. two-bit triplet solenoid valve one, 5. two-bit triplet solenoid valve two, 6. high-pressure valve one, 7. high-pressure valve two, 8. reaction chamber, a mouth on 8-1. reaction chamber, the lower mouth of 8-2. reaction chamber, 9. waste liquid bottle.
Embodiment
Below in conjunction with accompanying drawing, concrete structure of the present invention and embodiment are described in detail:
The design comprises peristaltic pump group, pneumatic pump, intake chamber, two-bit triplet solenoid valve one, two-bit triplet solenoid valve two, high-pressure valve one, high-pressure valve two, reaction chamber, waste liquid bottle and respective line and is formed by connecting.
The power device of the design using pneumatic pump as transmission, and by the unlatching of T-valve and high-pressure valve, only with feed liquor and the discharge opeing of the existing reaction chamber of positive pressure gas compacting, and waste liquid does not return intake chamber, avoids the pollution of feed liquor system.
Air delivery side of pump described in the design is connected with a mouth in intake chamber, is also connected with a mouth on reaction chamber by two-bit triplet solenoid valve one, high-pressure valve one simultaneously; And by two-bit triplet solenoid valve one and two-bit triplet solenoid valve two, the switching control of promoting the circulation of qi road is compressed into the positive pressure gas from pneumatic pump.
Intake chamber described in the design is tubular structure, a mouth in an intake chamber is arranged at top, a lower mouth of intake chamber is arranged at bottom, the side pipe wall of the left and right sides is provided with the collateral mouth of intake chamber, the number of the collateral mouth of intake chamber can be determined, for 4 collateral mouths of intake chamber in the design according to the kind of the reagent of on-line computing model needs.
Peristaltic pump group described in the design pumps into reagent by the collateral mouth of intake chamber in intake chamber, and in intake chamber, a mouth is connected with air delivery side of pump; The lower mouth of intake chamber is connected with the lower mouth of high-pressure valve two and reaction chamber by two-bit triplet solenoid valve two; Intake chamber adopts heat-resisting silicon boron glass material to make, and has good thermal stability and acid-proof alkaline.
Reaction chamber described in the design is tubular structure, and a mouth on a reaction chamber is arranged at top, and a lower mouth of reaction chamber is arranged at bottom, and described reaction chamber periphery is provided with the absorbance device of heating, cooling, thermometric, measurement reactant liquor; Reaction chamber adopts silica glass material to make, and has outstanding thermal stability and high temperature resistant, high pressure resistant, strong alkali-acid resistance performance.
The normal-closed end NC of the two-bit triplet solenoid valve one described in the design is connected with outlet of air pump, and the Chang Kaiduan NO of two-bit triplet solenoid valve one is connected with air, and the common port COM of two-bit triplet solenoid valve one is connected with high-pressure valve one.
Described in the design the normal-closed end NC of two-bit triplet solenoid valve two be connected with waste liquid bottle, the Chang Kaiduan NO of two-bit triplet solenoid valve two is connected with the intake chamber of an intake chamber lower mouth, and the common port COM of two-bit triplet solenoid valve two is connected with high-pressure valve two.
Specific works mode of the present invention is achieved like this:
When reaction chamber needs feed liquor, peristaltic pump group, pneumatic pump, high-pressure valve one, high-pressure valve two are opened, peristaltic pump group by reagent pump to intake chamber, and bring reaction chamber into through two-bit triplet solenoid valve two, high-pressure valve two successively by the air-flow from pneumatic pump, liquid stays in the reaction chamber, and air-flow is then expelled to air through high-pressure valve one, two-bit triplet solenoid valve one successively.At this moment gas also has agitating function, is uniformly mixed by the reagent in reaction chamber, is beneficial to follow-up reaction and measurement; Reagent after heating, cooling, measures result in the reaction chamber.
When reaction chamber needs discharge opeing, pneumatic pump, two-bit triplet solenoid valve one, two-bit triplet solenoid valve two, high-pressure valve one, high-pressure valve two are opened, air-flow from pneumatic pump enters reaction chamber through two-bit triplet solenoid valve one, high-pressure valve one successively, and the liquid in reaction chamber is expelled to waste liquid bottle through high-pressure valve two, two-bit triplet solenoid valve two successively; At this moment because the pressure from pneumatic pump is comparatively large, if there is the material of foam or particle precipitation in reaction chamber, equally can be pressed out to waste liquid bottle by the gas of malleation, ensure the cleaning of reaction chamber, be beneficial to follow-up reaction and measurement.
In the feed liquor, discharge opeing process of above-mentioned reaction chamber, the power source device transmitted using pneumatic pump as malleation air pressure, only with feed liquor and the discharge opeing of the existing reaction chamber of positive pressure gas compacting, and waste liquid does not return intake chamber, avoid the pollution of feed liquor system, and flow process is short, it is rapid to enter discharge opeing.
The parts that the liquid pumped into using intake chamber as peristaltic pump group crosses with the air-flow from pneumatic pump, not only can ensure that the liquid of different peristaltic pump can not pollute mutually, and itself can also, as pressure buffer bottle, make the air-flow from pneumatic pump more smooth-going and even.
The design's structure is simple, cost is low, measuring accuracy is high, enter that drain age velocity is fast, measuring period is short, feed liquor without interference and cross pollution, the monitoring water quality on line of the many indexes needing heating and decompose can be widely used in, as COD, heavy metal etc.
More than that a kind of water quality on-line monitoring instrument malleation of the present invention air pressure transmitting device is set forth; the present invention is understood for helping; any do not deviate from the principle of the invention under do change, modification, substitute, combination, simplify; all should be the substitute mode of equivalence, be included within protection scope of the present invention.
Claims (4)
1. a water quality on-line monitoring instrument malleation air pressure transmitting device, comprise peristaltic pump group, pneumatic pump, intake chamber, two-bit triplet solenoid valve one, two-bit triplet solenoid valve two, high-pressure valve one, high-pressure valve two, reaction chamber, waste liquid bottle and respective line to be formed by connecting, it is characterized in that:
Air delivery side of pump described in the design is connected with a mouth in intake chamber, is also connected with a mouth on reaction chamber by two-bit triplet solenoid valve one, high-pressure valve one simultaneously;
Intake chamber described in the design is tubular structure, and a mouth in an intake chamber is arranged at top, and a lower mouth of intake chamber is arranged at bottom, and the side pipe wall of the left and right sides is provided with the collateral mouth of intake chamber;
Peristaltic pump group described in the design pumps into reagent by the collateral mouth of intake chamber in intake chamber, and in intake chamber, a mouth is connected with air delivery side of pump; The lower mouth of intake chamber is connected with the lower mouth of high-pressure valve two and reaction chamber by two-bit triplet solenoid valve two;
Reaction chamber described in the design is tubular structure, and a mouth on a reaction chamber is arranged at top, and a lower mouth of reaction chamber is arranged at bottom, and described reaction chamber periphery is provided with the absorbance device of heating, cooling, thermometric, measurement reactant liquor;
The normal-closed end NC of the two-bit triplet solenoid valve one described in the design is connected with outlet of air pump, and the Chang Kaiduan NO of two-bit triplet solenoid valve one is connected with air, and the common port COM of two-bit triplet solenoid valve one is connected with high-pressure valve one;
Described in the design the normal-closed end NC of two-bit triplet solenoid valve two be connected with waste liquid bottle, the Chang Kaiduan NO of two-bit triplet solenoid valve two is connected with the intake chamber of an intake chamber lower mouth, and the common port COM of two-bit triplet solenoid valve two is connected with high-pressure valve two.
2. a kind of water quality on-line monitoring instrument malleation air pressure transmitting device according to claim 1, is characterized in that: the number of the collateral mouth of intake chamber can be determined according to the kind of the reagent of on-line computing model needs.
3. a kind of water quality on-line monitoring instrument malleation air pressure transmitting device according to claim 1, is characterized in that: intake chamber adopts heat-resisting silicon boron glass material to make.
4. a kind of water quality on-line monitoring instrument malleation air pressure transmitting device according to claim 1, is characterized in that: reaction chamber adopts silica glass material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171893.0A CN104749336A (en) | 2015-04-03 | 2015-04-03 | Positive air pressure transmission device for online water quality monitoring instrument |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510171893.0A CN104749336A (en) | 2015-04-03 | 2015-04-03 | Positive air pressure transmission device for online water quality monitoring instrument |
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| CN104749336A true CN104749336A (en) | 2015-07-01 |
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| CN201510171893.0A Pending CN104749336A (en) | 2015-04-03 | 2015-04-03 | Positive air pressure transmission device for online water quality monitoring instrument |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107132109A (en) * | 2017-07-13 | 2017-09-05 | 四川久环环境技术有限责任公司 | Sealed microwave digestion colorimetric integrated apparatus |
| CN107843703A (en) * | 2017-11-22 | 2018-03-27 | 江苏蓝创智能科技股份有限公司 | The check system and method for calibration of water quality testing meter |
| CN107860717A (en) * | 2017-11-22 | 2018-03-30 | 江苏蓝创智能科技股份有限公司 | Improved water quality testing meter and its application method |
| CN108072648A (en) * | 2016-11-15 | 2018-05-25 | 杭州绿洁水务科技股份有限公司 | A kind of micro-fluidic chip integrated system for being used to detect total nitrogen total phosphorus |
| CN112730525A (en) * | 2020-12-25 | 2021-04-30 | 杭州绿洁环境科技股份有限公司 | Low-concentration trace water sample pH conductivity detector |
| CN116953053A (en) * | 2023-09-18 | 2023-10-27 | 深圳市希莱恒医用电子有限公司 | Electrolyte analyzer and automatic detection method thereof |
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| CN108072648A (en) * | 2016-11-15 | 2018-05-25 | 杭州绿洁水务科技股份有限公司 | A kind of micro-fluidic chip integrated system for being used to detect total nitrogen total phosphorus |
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| CN107132109A (en) * | 2017-07-13 | 2017-09-05 | 四川久环环境技术有限责任公司 | Sealed microwave digestion colorimetric integrated apparatus |
| CN107843703A (en) * | 2017-11-22 | 2018-03-27 | 江苏蓝创智能科技股份有限公司 | The check system and method for calibration of water quality testing meter |
| CN107860717A (en) * | 2017-11-22 | 2018-03-30 | 江苏蓝创智能科技股份有限公司 | Improved water quality testing meter and its application method |
| CN107843703B (en) * | 2017-11-22 | 2023-12-05 | 江苏蓝创智能科技股份有限公司 | Verification system and verification method of water quality detector |
| CN107860717B (en) * | 2017-11-22 | 2024-02-23 | 江苏蓝创智能科技股份有限公司 | Improved water quality detector and use method thereof |
| CN112730525A (en) * | 2020-12-25 | 2021-04-30 | 杭州绿洁环境科技股份有限公司 | Low-concentration trace water sample pH conductivity detector |
| CN112730525B (en) * | 2020-12-25 | 2024-01-16 | 杭州绿洁科技股份有限公司 | Low-concentration trace water sample pH conductivity detector |
| CN116953053A (en) * | 2023-09-18 | 2023-10-27 | 深圳市希莱恒医用电子有限公司 | Electrolyte analyzer and automatic detection method thereof |
| CN116953053B (en) * | 2023-09-18 | 2024-01-26 | 深圳市希莱恒医用电子有限公司 | Electrolyte analyzer and automatic detection method thereof |
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Application publication date: 20150701 |