CN203858138U - Rice field volatile ammonia collecting device with adjusting valve - Google Patents
Rice field volatile ammonia collecting device with adjusting valve Download PDFInfo
- Publication number
- CN203858138U CN203858138U CN201420073222.1U CN201420073222U CN203858138U CN 203858138 U CN203858138 U CN 203858138U CN 201420073222 U CN201420073222 U CN 201420073222U CN 203858138 U CN203858138 U CN 203858138U
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- CN
- China
- Prior art keywords
- ammonia
- main pipeline
- boric acid
- rice field
- control valve
- Prior art date
- 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 - Fee Related
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Abstract
The utility model provides a rice field volatile ammonia collecting device with an adjusting valve. The device consists of a ventilating pipe, an ammonia absorption sealed room, H3BO3 absorption bottles, flow control valves, vacuum evacuating equipment, a main pipeline, three-way joints and branch pipelines. The device with the flow control valves and the branch pipelines is capable of controlling the flow of gas and monitoring partitioned monitoring of quarters or consistency of simultaneous ventilating of fields, so that the accuracy and reliability of monitoring data are improved, and the influence on the accuracy of a whole test of unstable airflow caused by change of external environment can be alleviated or buffered. The device is relatively suitable for research features of batch measurement of ammonia volatilization flux, improves the test efficiency, has useful effects and is simple to operate.
Description
Technical field
The utility model relates to rice field ammonia volatilization gathering-device, particularly a kind of installation control valve rice field ammonia volatilization gathering-device.
Background technology
At present, continuous airtight venting method is more common for measuring the method for soil ammonia volatilization, is applicable to community, field contrast experiment, and its ultimate principle is to using large-scale vacuum as power source, utilizes the NH in air displacement confined chamber
3, the NH evaporating
3along with pumping airflow enters in absorption bottle, using contain be mixed with indicator 2% BAS as ammonia absorption liquid, finally with the titration of standard dilution heat of sulfuric acid, calculate ammonia volatilization amount.Because boric acid belongs to weak acid, resiliency is better, and this method does not need exact instrument, at field energy Fast Measurement, therefore domestic correlative study adopts the method more when measuring the ammonia volatilization in field, based on the method principle, there is corresponding device at present, but deposited problem both ways with regard to current ammonia volatilization gathering-device, the one, uncontrollable gas flow; The 2nd, for a plurality of plot experiments, cannot carry out independent mensuration.
Summary of the invention
The purpose of this utility model is in order to overcome above-mentioned the deficiencies in the prior art, and a kind of installation control valve rice field ammonia volatilization gathering-device is provided.
For achieving the above object, the utility model provide a kind of installation control valve rice field ammonia volatilization gathering-device its by snorkel, ammonia absorbs confined chamber, boric acid absorption bottle, flowrate control valve, vacuum-pumping equipment, main pipeline, threeway, subtube forms, ammonia absorbs on confined chamber two openings is set, an opening is snorkel, another opening is connected with boric acid absorption bottle by connecting pipe, its boric acid absorption bottle is connected with main pipeline by connecting pipe, on main pipeline, be provided with a plurality of subtubes, mensuration in the time of can carrying out multiple sectors at same by subtube, make each community there is relative independentability, main pipeline one end is provided with the vacuum-pumping equipment of negative pressure ventilation, at boric acid absorption bottle and main pipeline interface, be provided with flowrate control valve, its flowrate control valve can be adjusted gas flow size, the ventilation frequency of guaranteeing each processing is as far as possible consistent, and the situation of each single-point can not affect the accuracy of whole system
.
The beneficial effects of the utility model are a kind of flowrate control valves of installing on control valve rice field ammonia volatilization gathering-device, can control gas flow size, can monitor the subregion monitoring of community or the consistance that field is taken a breath simultaneously, thereby improve accuracy and the reliability of Monitoring Data, can reduce or cushion because external environment changes and cause the unstable accuracy that affects whole test of air-flow, especially be applicable to measuring in batches ammonia volatilization flux Research Characteristics, improved test efficiency, effective, simple to operate.
accompanying drawing explanation
Fig. 1 is the utility model structural representation.
In figure: 1. snorkel 2. ammonia absorb confined chamber 3. boric acid absorption bottle 4. flowrate control valve 5. vacuum-pumping equipment 6. main pipeline 7. threeway 8. subtubes.
embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
Refer to shown in Fig. 1, a kind of installation control valve rice field ammonia volatilization gathering-device, it is comprised of snorkel (1), ammonia absorption confined chamber (2), boric acid absorption bottle (3), flowrate control valve (4), vacuum-pumping equipment (5), main pipeline (6), threeway (7), subtube (8), ammonia is absorbed to confined chamber (2) and be placed in the paddy field that needs mensuration, ammonia absorbs confined chamber (2) openend and inserts in soil downwards, boric acid absorption bottle (3) will be housed and be positioned over safety and steady area, the power supply of connecting vacuum-pumping equipment (5), Preparatory work of experiment is ready.Open vacuum-pumping equipment (5), slow adjust flux operation valve (4), make air-flow velocity stable, under the negative pressure of vacuum suction device (5), the ammonia that ammonia absorbs in confined chamber (2) enters boric acid absorption bottle (3) by connecting pipe, after ammonia is absorbed, boric acid color changes, when boric acid color no longer changes, illustrate that boric acid has absorbed saturated, now can close cell flow operation valve (4), other communities can be measured simultaneously, the boric acid absorption bottle (3) of having collected is brought back to testing laboratory, with the titration of standard dilute sulfuric acid, calculate ammonia volatilization amount.
Claims (1)
1. one kind control valve rice field ammonia volatilization gathering-device is installed, it is by snorkel, ammonia absorbs confined chamber, boric acid absorption bottle, flowrate control valve, vacuum-pumping equipment, main pipeline, threeway, subtube forms, it is characterized in that, ammonia absorbs on confined chamber two openings is set, an opening is snorkel, another opening is connected with boric acid absorption bottle by connecting pipe, its boric acid absorption bottle is connected with main pipeline by connecting pipe, on main pipeline, be provided with a plurality of subtubes, main pipeline one end is provided with the vacuum-pumping equipment of negative pressure ventilation, at boric acid absorption bottle and main pipeline interface, be provided with flowrate control valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073222.1U CN203858138U (en) | 2014-02-20 | 2014-02-20 | Rice field volatile ammonia collecting device with adjusting valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420073222.1U CN203858138U (en) | 2014-02-20 | 2014-02-20 | Rice field volatile ammonia collecting device with adjusting valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203858138U true CN203858138U (en) | 2014-10-01 |
Family
ID=51607984
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420073222.1U Expired - Fee Related CN203858138U (en) | 2014-02-20 | 2014-02-20 | Rice field volatile ammonia collecting device with adjusting valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203858138U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954072A (en) * | 2016-06-23 | 2016-09-21 | 江苏省农业科学院 | Field farmland volatilized ammonia collecting device based on photovoltaic power generation |
| CN106932531A (en) * | 2017-04-07 | 2017-07-07 | 北京市农林科学院 | A kind of ammonia absorbs and monitoring device and its application method |
| CN108008065A (en) * | 2017-11-02 | 2018-05-08 | 潍坊中创生物科技有限公司 | Ammonia gas detection device and ammonia gas detection method |
| CN111579318A (en) * | 2020-06-09 | 2020-08-25 | 苏州方元智能环保科技有限公司 | Sampling device and sampling method applied to determination of ammonium nitrogen isotope |
-
2014
- 2014-02-20 CN CN201420073222.1U patent/CN203858138U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105954072A (en) * | 2016-06-23 | 2016-09-21 | 江苏省农业科学院 | Field farmland volatilized ammonia collecting device based on photovoltaic power generation |
| CN106932531A (en) * | 2017-04-07 | 2017-07-07 | 北京市农林科学院 | A kind of ammonia absorbs and monitoring device and its application method |
| CN108008065A (en) * | 2017-11-02 | 2018-05-08 | 潍坊中创生物科技有限公司 | Ammonia gas detection device and ammonia gas detection method |
| CN111579318A (en) * | 2020-06-09 | 2020-08-25 | 苏州方元智能环保科技有限公司 | Sampling device and sampling method applied to determination of ammonium nitrogen isotope |
| CN111579318B (en) * | 2020-06-09 | 2022-12-23 | 苏州方元智能环保科技有限公司 | Sampling device and sampling method applied to determination of ammonium nitrogen isotope |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141001 Termination date: 20150220 |
|
| EXPY | Termination of patent right or utility model |