CN104568512A - Online analysis instrument sampling control method - Google Patents
Online analysis instrument sampling control method Download PDFInfo
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- CN104568512A CN104568512A CN201510000018.6A CN201510000018A CN104568512A CN 104568512 A CN104568512 A CN 104568512A CN 201510000018 A CN201510000018 A CN 201510000018A CN 104568512 A CN104568512 A CN 104568512A
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Abstract
The invention relates to an online analysis instrument sampling control method and belongs to the field of automatic control on sewage water quality detection. According to the method, when more than two water quality online analysis instruments are mounted at the same sampling point, intermediate relays of which the number is the same as that of the water quality online analysis instruments are mounted; a 220V AC (Alternating Current) power supply output when each instrument samples firstly respectively controls the corresponding relay to act and then normally-opened contacts of the relays are connected in series into a water pump control loop after being connected in parallel so as to control a sampling pump to be started or shut down; when any one water quality online analysis instrument takes water, firstly, the relay corresponding to the water quality online analysis instrument is triggered, the corresponding normally-opened contact is closed after the relay is powered on, the water pump loop is switched on and a water pump is started so as to realize sampling of more than two water quality online analysis instruments by one water pump. According to the online analysis instrument sampling control method, water samples can be provided for a plurality of water quality online analysis instruments by one sampling pump, so that detection on a plurality of parameters is realized, the cost is reduced, and maintenance is convenient.
Description
Technical field
The invention belongs to sewage detection automation field, be specifically related to a kind of on-line analysis instrument sampling control method.
Background technology
In order to control water environment pollution, in some large enterprise's freeing port, corresponding water quality on-line monitoring instrument table to be installed, to arrange water-quality guideline, protection of the environment outside controlling.Such as common COD and the online water analysis such as ammonia nitrogen and PH instrument.Because the on-line analysis such as COD and ammonia nitrogen instrument is all on-the-spot periodic sample formula, need, by water pump timing, water sample is evacuated to instrument measurement room from catch gutter, carry out periodic sample analysis.Therefore, every platform instrument also needs outfit submersible pump, and installs water intaking pipeline.
Sampling type analysis meter is all by the menu setting sample period.When measurement starts, first instrument trigger internal relay, exports a 220VAC voltage signal to sampling pump, and sampling pump starts, and water sample is evacuated to instrument pretreatment system, through filtering, sends into measuring chamber, and when reaching the sample size of instrument needs, pump stops.Instrumentation system according to program sampling, carries out optical measurement, finally draws data again.
If every platform instrument is equipped with a water pump water intaking separately, on the one hand multiple stage water pump to be installed, overlap watering pipeline more, general water channel is all in outdoor, instrument will be contained in indoor, and relating to the length of pipeline, pipeline heat insulation etc. can increase front-end investment cost, in addition, because water is dirty, often want scavenging pump entrance, the pump therefore filled is more, and later maintenance amount is also larger.
For some Sewage outlets, in order to control water-quality guideline, need to carry out on-line continuous sampling monitoring to water quality, measuring instrument needs, by water pump, sample is got instrument measurement room and carries out periodicity analysis, to draw measurement data.
Be provided with multiple stage sampling type online water analysis instrument at same floss hole, if arrange every platform instrument arrangement sampling pump and a set of sampling line according to routine, construction work amount is large, and operation and maintenance cost is high.
If arrange set of device by electrical auxiliary service, only an installation sampling pump and a set of water intaking pipeline share by multiple stage instrument, just can be cost-saving, improve operational efficiency.
Summary of the invention
The situation of multiple stage sampling type on-line analysis instrument is installed for same place, by installing this sampling control equipment, realizing multiple stage instrument and sharing a water pump and circuits sampling, both can save installation cost of investment, additionally reduce later stage operation and maintenance cost, play effect of energy.
Technical scheme of the present invention:
A kind of on-line analysis instrument sampling control method, is characterized in that installing at least two water quality online analyzer tables in same place; And by after normal parallel connection battle of the relay identical with water quality online analyzer table quantity, seal in water pump loop.
The 220VAC power supply contact exported when being fetched water by water quality online analyzer table is connected to the line bag loop of corresponding relay respectively, again the normal opened contact parallel connection of each relay is sealed in water pump loop, then by submersible pump submerged, water pump upper hose pipeline has arrived water quality online analyzer table sample tap to be separated by threeway; Any water quality online analyzer table water intaking, first triggers the relay corresponded, relay obtain electric after, often make war closed accordingly, water pump loop is connected, and starts water pump, realizes a pump multiplex.
Described water quality online analyzer table adopts sampling type water quality online analyzer table.
Beneficial effect of the present invention: just can provide water sample for multiple stage water quality online analyzer table by a sampling pump, realize the detection of multiple parameter, cost-saving, maintain easily.
Embodiment
To install A, B two sampling type on-line analysis instrument in same place.
A, B are two sampling type water quality online analyzer tables, water quality online analyzer table measure start time first trigger internal relay, export a 220VAC voltage signal to sampling pump, sampling pump starts, and water sample is evacuated to instrument pretreatment system, through filtering, send into measuring chamber, when reaching the sample size of instrument needs, pump stops, and starts to measure.
Two auxiliary reclays are installed put up a bridge, make A, B two water quality online analyzer tables share a water pump.
The 220VAC power supply contact exported when A instrument being fetched water is connected to the first relay line bag loop, when B instrument is fetched water export 220VAC power supply contact be connected to the second relay line bag loop, then by the normal battle of the first relay and the normal battle of the second relay in parallel after seal in water pump loop.
Then by submersible pump submerged, watering pipeline has arrived A, B two water quality online analyzer table sample tap places installation threeways and water route has been passed into respectively A, B two water quality online analyzer tables.
When any water quality online analyzer table water intaking, first trigger corresponding relay, relay obtain electric after, often make war closed accordingly, water pump loop is connected, and starts water pump, realizes a pump dual-purpose.
In addition: for multiple stage sampling type instrument, then equally use multiple auxiliary reclay, after normal parallel connection battle of multiple relay, seal in water pump loop, realize a pump multiplex.
Claims (1)
1. an on-line analysis instrument sampling control method, is characterized in that when same sampling spot installs more than two water quality online analyzer tables, only installs a set of water pump system by increasing auxiliary reclay just can to meet the water intaking of multiple stage instrument shared;
The 220VAC power supply contact exported during each water quality online analyzer table water intaking is connected to respectively the line bag loop of the relay corresponding with water quality online analyzer table; Connect after the normal opened contact parallel connection of corresponding relay with water pump control loop again;
Any water quality online analyzer table water intaking, first triggers the relay corresponded, relay obtain electric after, often make war closed accordingly, water pump loop is connected, and starts water pump, realizes a water pump for multiple stage water quality online analyzer table.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000018.6A CN104568512A (en) | 2015-01-01 | 2015-01-01 | Online analysis instrument sampling control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510000018.6A CN104568512A (en) | 2015-01-01 | 2015-01-01 | Online analysis instrument sampling control method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104568512A true CN104568512A (en) | 2015-04-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510000018.6A Pending CN104568512A (en) | 2015-01-01 | 2015-01-01 | Online analysis instrument sampling control method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104568512A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115551A (en) * | 2018-07-11 | 2019-01-01 | 钟丽菊 | A kind of environment monitoring system |
| CN112764383A (en) * | 2020-12-22 | 2021-05-07 | 中国核电工程有限公司 | Method and system for displaying and alarming different pipeline signals |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2558996Y (en) * | 2002-07-04 | 2003-07-02 | 张衍林 | Flowing injection apparatus |
| US20080115594A1 (en) * | 2006-11-16 | 2008-05-22 | Mangan, Inc. | High temperature enclosure system for flare gas sampling |
-
2015
- 2015-01-01 CN CN201510000018.6A patent/CN104568512A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2558996Y (en) * | 2002-07-04 | 2003-07-02 | 张衍林 | Flowing injection apparatus |
| US20080115594A1 (en) * | 2006-11-16 | 2008-05-22 | Mangan, Inc. | High temperature enclosure system for flare gas sampling |
Non-Patent Citations (1)
| Title |
|---|
| 百度文库: "《"中间继电器作用（经典）https://wenku.baidu.com/view/a3f2ea978762caaedd33d489.html》", 31 May 2013 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109115551A (en) * | 2018-07-11 | 2019-01-01 | 钟丽菊 | A kind of environment monitoring system |
| CN112764383A (en) * | 2020-12-22 | 2021-05-07 | 中国核电工程有限公司 | Method and system for displaying and alarming different pipeline signals |
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Application publication date: 20150429 |
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| RJ01 | Rejection of invention patent application after publication |