CN202631504U - Liquid detector - Google Patents
Liquid detector Download PDFInfo
- Publication number
- CN202631504U CN202631504U CN 201220209390 CN201220209390U CN202631504U CN 202631504 U CN202631504 U CN 202631504U CN 201220209390 CN201220209390 CN 201220209390 CN 201220209390 U CN201220209390 U CN 201220209390U CN 202631504 U CN202631504 U CN 202631504U
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- China
- Prior art keywords
- liquid
- air pump
- sampler chamber
- sensor
- electric control
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- Withdrawn - After Issue
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Abstract
The utility model relates to a liquid detector which comprises a sensor, a sampling chamber, an electronically-controlled valve, a liquid storage tank, a spray nozzle, an air pump and a control circuit, wherein both the sampling chamber and the liquid storage tank are soaked in liquid to be detected, the sensor is arranged in the sampling chamber, the top of the sampling chamber is connected with the electronically-controlled valve through a first tube, the spray nozzle is arranged at the bottom of the sampling chamber and is sequentially connected with the liquid storage chamber and the air pump through a second tube, both the electronically-controlled valve and the air pump are positioned above the liquid level of the liquid to be detected, and the control circuit is respectively electrically connected with the electronically-controlled valve and the air pump and controls the same to be on alternately. By the liquid detector in the technical scheme, the valve and the air pump are on alternately by the aid of the control circuit, so that the internal sensor can contact with the liquid to be detected only when acquiring data and can be flushed by the aid of the spray nozzle when not acquiring the data, and further, the service life of the sensor is prolonged.
Description
Technical field
The utility model relates to a kind of device that is used for the characteristics of liquids parameter measurement, relates in particular to a kind of liquid-detecting.
Background technology
At present; All need use liquid sensor in a lot of occasions in industry or the civil area; Detect some parameter (for example, dissolved oxygen concentration) of water or other liquid, but more or less all there are some pollutions in these liquid to be detected; Thereby possibly cause sensor detecting element surface or sensor itself to be covered, damage or corrosion, and then cause sensor failure and life-span to reduce by fouling product.
Summary of the invention
The purpose of the utility model provides a kind of liquid-detecting, to solve that liquid sensor in the prior art is subject to that testing liquid pollutes and the problem that causes damaging.
In order to achieve the above object, the technical scheme of the utility model proposes a kind of liquid-detecting, comprises sensor, also comprises: sampler chamber, electric control valve, fluid reservoir, nozzle, air pump and control circuit;
Said sampler chamber and said fluid reservoir all are immersed in the testing liquid; Said sensor places in the said sampler chamber; The top of said sampler chamber links to each other with said electric control valve through first body; Said nozzle is arranged on the bottom of said sampler chamber, and this nozzle links to each other with said air pump with said fluid reservoir through second body successively, and said electric control valve and said air pump all are positioned at more than the liquid level of said testing liquid; Said control circuit electrically connects with said electric control valve and said air pump respectively, and controls this electric control valve and this air pump alternate conduction.
In the above-mentioned liquid-detecting, said sampler chamber is that the upper end is closed, the hollow cylinder of lower ending opening, and the upper end of this cylindrical shell is provided with the through hole that supplies said first body to insert, and said nozzle is placed on the lower ending opening center position of this cylindrical shell.
The liquid-detecting that the utility model technical scheme provides; Realize the alternate conduction of valve and air pump through control circuit; Can make built-in sensors only when image data, just contact fluid to be measured; And when image data not, can utilize nozzle to wash, prolong the sensor purpose in serviceable life thereby reach.
Description of drawings
Fig. 1 is the example structure figure of the utility model liquid-detecting.
Embodiment
Following examples are used to explain the utility model, but are not used for limiting the scope of the utility model.
Fig. 1 is the example structure figure of the utility model liquid-detecting, and is as shown in the figure, and the liquid-detecting of present embodiment comprises sensor 11, sampler chamber 12, electric control valve 13, fluid reservoir 14, nozzle 15, air pump 16 and control circuit 17.Wherein, sampler chamber 12 and fluid reservoir 14 all are immersed in the testing liquid 20; Sensor 11 places in the sampler chamber 12; The top of sampler chamber 12 links to each other with electric control valve 13 through first body 18; Nozzle 15 is arranged on the bottom of sampler chamber 12, and this nozzle 15 links to each other with air pump 16 with fluid reservoir 14 through second body 19 successively, and electric control valve 13 and air pump 16 all are positioned at more than the liquid level of testing liquid 20; Control circuit 17 electrically connects with electric control valve 13 and air pump 16 respectively, and controls this electric control valve 13 and these air pump 16 alternate conduction.
Further as shown in the figure; In the liquid-detecting of present embodiment; Sampler chamber 12 is that the upper end is closed, the hollow cylinder of lower ending opening, and the upper end of this cylindrical shell is provided with the through hole that supplies first body 18 to insert, and nozzle 15 is placed on the lower ending opening center position of this cylindrical shell.In one embodiment, above-mentioned first body 18 and second body 19 for example are flexible pipe.
Based on the structure explanation of aforesaid liquid pick-up unit embodiment, will briefly introduce the course of work of this device below.
Step 1, when needs carry out data acquisition to testing liquid, 13 conductings of control circuit 17 control electric control valves, and control air pump 16 cuts out; At this moment, sampler chamber 12 internal gas pressure balances, thus the liquid levels in the sampler chamber 12 will reach the liquid level 21 identical with the outer testing liquid of sampler chamber 12 20, thus sensor 11 is immersed in the testing liquid 20 to accomplish data acquisition; Simultaneously, also will fill testing liquid 20 in the fluid reservoir 14.
Step 2, when a data collection period was accomplished, control circuit 17 control electric control valves 13 were closed, and 16 conductings of control air pump; At this moment, the testing liquid 20 in the fluid reservoir 14 will be used for washing sensor 11 through nozzle 15, and the testing liquid 20 in sampler chamber 12 and fluid reservoir 14 all is drained; At this moment, the liquid level in the sampler chamber 12 will reach the liquid level 22 with sampler chamber 12 bottom coplanes, and testing liquid 20 will be accomplished flushing, cleaning to sensor with air-flow in this process.
Step 3, in the gap of data acquisition, control circuit 17 all remains on closed condition with electric control valve 13 and air pump 16, is effectively protected thereby make sensor 11 in airtight sampler chamber 12, can not come in contact with testing liquid 20.
Next data collection cycle repeats above-mentioned steps 1-step 3 when beginning operation gets final product.
In sum; The liquid-detecting that the utility model technical scheme provides; Realize the alternate conduction of valve and air pump through control circuit; Can make built-in sensors only when image data, just contact fluid to be measured, and when image data not, can utilize nozzle to wash, prolong the sensor purpose in serviceable life thereby reach.
More than be the preferred forms of the utility model, according to the disclosed content of the utility model, those of ordinary skill in the art can obviously expect some identical, replacement schemes, all should fall into the scope of the utility model protection.
Claims (2)
1. a liquid-detecting comprises sensor, it is characterized in that, also comprises: sampler chamber, electric control valve, fluid reservoir, nozzle, air pump and control circuit;
Said sampler chamber and said fluid reservoir all are immersed in the testing liquid; Said sensor places in the said sampler chamber; The top of said sampler chamber links to each other with said electric control valve through first body; Said nozzle is arranged on the bottom of said sampler chamber, and this nozzle links to each other with said air pump with said fluid reservoir through second body successively, and said electric control valve and said air pump all are positioned at more than the liquid level of said testing liquid; Said control circuit electrically connects with said electric control valve and said air pump respectively, and controls this electric control valve and this air pump alternate conduction.
2. liquid-detecting as claimed in claim 1; It is characterized in that; Said sampler chamber is that the upper end is closed, the hollow cylinder of lower ending opening, and the upper end of this cylindrical shell is provided with the through hole that supplies said first body to insert, and said nozzle is placed on the lower ending opening center position of this cylindrical shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220209390 CN202631504U (en) | 2012-05-11 | 2012-05-11 | Liquid detector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220209390 CN202631504U (en) | 2012-05-11 | 2012-05-11 | Liquid detector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202631504U true CN202631504U (en) | 2012-12-26 |
Family
ID=47384695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220209390 Withdrawn - After Issue CN202631504U (en) | 2012-05-11 | 2012-05-11 | Liquid detector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202631504U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645520A (en) * | 2012-05-11 | 2012-08-22 | 常州智能农业装备研究院有限公司 | Liquid detection device and control method thereof |
| WO2015109664A1 (en) * | 2014-01-24 | 2015-07-30 | 深圳市华星光电技术有限公司 | Oscillating sensor assembly |
| CN105510539A (en) * | 2015-12-31 | 2016-04-20 | 北京雪迪龙科技股份有限公司 | Gas toxicity detection method and system |
-
2012
- 2012-05-11 CN CN 201220209390 patent/CN202631504U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102645520A (en) * | 2012-05-11 | 2012-08-22 | 常州智能农业装备研究院有限公司 | Liquid detection device and control method thereof |
| CN102645520B (en) * | 2012-05-11 | 2014-12-17 | 常州智能农业装备研究院有限公司 | Liquid detection device and control method thereof |
| WO2015109664A1 (en) * | 2014-01-24 | 2015-07-30 | 深圳市华星光电技术有限公司 | Oscillating sensor assembly |
| CN105510539A (en) * | 2015-12-31 | 2016-04-20 | 北京雪迪龙科技股份有限公司 | Gas toxicity detection method and system |
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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: 20121226 Effective date of abandoning: 20141217 |
|
| RGAV | Abandon patent right to avoid regrant |