CN209745939U - Automatic carbon dioxide concentration measuring system in field crop group - Google Patents
Automatic carbon dioxide concentration measuring system in field crop group Download PDFInfo
- Publication number
- CN209745939U CN209745939U CN201920584015.5U CN201920584015U CN209745939U CN 209745939 U CN209745939 U CN 209745939U CN 201920584015 U CN201920584015 U CN 201920584015U CN 209745939 U CN209745939 U CN 209745939U
- Authority
- CN
- China
- Prior art keywords
- gas
- air
- inlet end
- carbon dioxide
- outlet end
- 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.)
- Active
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Abstract
the utility model discloses an automatic measuring system for the concentration of carbon dioxide in field crop groups, which comprises a gas collecting device, wherein the gas collecting device comprises a multi-port gas bar, each gas inlet end of the multi-port gas bar is connected with a solenoid valve, the gas inlet end of the multi-port gas bar is communicated with the gas outlet end of the solenoid valve, and the gas inlet end of the solenoid valve is connected to a gas collecting area through a collecting channel; the air outlet end of the multi-port air exhaust is connected with an air pump, and the air outlet end of the air pump is communicated with the air inlet end of the gas analysis device; the electromagnetic valve and the air pump are both electrically connected with a controller. The gas collection device can collect carbon dioxide gas from field crops at the same time through the multi-channel gas exhaust, only one path of gas enters the air pump through the control of the electromagnetic valve at each time, and the gas enters the gas analysis device through the air pump to analyze the concentration of the carbon dioxide. And the influence of external factors on the gas concentration is avoided through the acquisition channel, so that the accuracy of the detection result is improved.
Description
Technical Field
The utility model relates to a carbon dioxide concentration determination technical field, concretely relates to automatic determination system of carbon dioxide concentration in field crop crowd.
Background
Carbon dioxide is a raw material for photosynthesis of crops and is also a product of respiration of crops. The concentration of carbon dioxide in the population is usually used for reflecting the photosynthetic performance of the crops, and the accurate determination of the concentration of the carbon dioxide in the population has important significance for exploring the photosynthetic capacity of the crop population.
Most of carbon dioxide measuring systems in the prior art measure carbon dioxide in a single gas path by using a carbon dioxide measuring instrument or by manually pumping and checking the area, namely, gas in the area to be measured is pumped by a gas pump or manually pumped to one or more carbon dioxide analyzers to measure the concentration.
However, due to the existence of instrument errors, the concentration of carbon dioxide processed by different tests is simultaneously measured by adopting a plurality of single gas path carbon dioxide analyzers, so that the measurement errors are inevitably increased, and the result is inaccurate. The system error can be reduced by using an analysis instrument to carry out measurement in a mode of manual air suction and inspection, but the labor intensity is greatly increased, and meanwhile, the concentration of carbon dioxide in a region is inevitably changed by breathing of a person, so that the detection result is inaccurate.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a solve above-mentioned technical problem, proposed following technical scheme:
In a first aspect, an embodiment of the present invention provides an automatic determination system for carbon dioxide concentration in field crop groups, which includes a gas collection device, wherein the gas collection device includes a multi-port gas bar, each gas inlet end of the multi-port gas bar is connected to a solenoid valve, the gas inlet end of the multi-port gas bar is communicated with the gas outlet end of the solenoid valve, and the gas inlet end of the solenoid valve is connected to a gas collection area through a collection channel; the air outlet end of the multi-port air exhaust is connected with an air pump, the air outlet end of the multi-port air exhaust is communicated with the air inlet end of the air pump, and the air outlet end of the air pump is communicated with the air inlet end of the gas analysis device; the electromagnetic valve and the air pump are both electrically connected with a controller, and the controller is used for controlling the electromagnetic valve and the air pump.
By adopting the implementation mode, the gas collection device can queue field crops through multi-channel gas to collect carbon dioxide gas at the same time, only one path of gas enters the air suction pump at each time through the control of the electromagnetic valve, and the gas enters the gas analysis device through the air suction pump to analyze the concentration of the carbon dioxide. Because the field crops are subjected to gas collection at different positions at the same time, the influence of external factors on the gas concentration is avoided through the collection channel, and the accuracy of the detection result is improved.
With reference to the first aspect, in a first possible implementation manner of the first aspect, a gas buffer bottle is disposed at one end of the collection channel, where the collection channel is disposed in the collection area, and the gas buffer bottle is communicated with a gas inlet end of the collection channel.
With reference to the first aspect, in a second possible implementation manner of the first aspect, an air inlet short pipe is disposed at an air inlet end of the electromagnetic valve, and the air inlet short pipe is respectively communicated with the air inlet end of the electromagnetic valve and an air outlet end of the collection channel.
with reference to the first aspect, in a third possible implementation manner of the first aspect, a T-shaped pipeline connecting piece is arranged between the air outlet end of the air pump and the air inlet end of the gas analysis device, the air inlet end of the T-shaped pipeline connecting piece (9) is communicated with the air outlet end of the air pump, the first air outlet end of the T-shaped pipeline connecting piece (9) is communicated with the air inlet end of the gas analysis device, and the second air outlet end of the T-shaped pipeline connecting piece (9) is communicated with the outside.
With reference to the third possible implementation manner of the first aspect, in a fourth possible implementation manner of the first aspect, an air dust filter is disposed between the T-shaped pipeline connecting piece (9) and the gas analysis device, and the air dust filter is respectively communicated with a first gas outlet end of the T-shaped pipeline connecting piece (9) and a gas inlet end of the gas analysis device.
With reference to the first aspect or any one of the first to fourth possible implementation manners of the first aspect, in a fifth possible implementation manner of the first aspect, the gas analysis device includes an infrared carbon dioxide analyzer having an automatic data recording function.
With reference to the fifth possible implementation manner of the first aspect, in a sixth possible implementation manner of the first aspect, the collection channel includes a transparent PVC hose.
With reference to the sixth possible implementation manner of the first aspect, in a seventh possible implementation manner of the first aspect, the controller further includes a power supply, and the power supply is electrically connected to the controller.
With reference to the seventh possible implementation manner of the first aspect, in an eighth possible implementation manner of the first aspect, a power switch is further disposed outside the gas collection device, and the power switch is electrically connected to the controller.
With reference to the eighth possible implementation manner of the first aspect, in a ninth possible implementation manner of the first aspect, the controller includes a single chip microcomputer controller.
Drawings
Fig. 1 is a schematic structural diagram of an automatic determination system for carbon dioxide concentration in field crop groups according to an embodiment of the present invention;
Fig. 2 is a schematic structural diagram of a gas collecting device according to an embodiment of the present invention;
In fig. 1-2, the symbols are represented as:
the device comprises a gas source, a gas outlet, a gas inlet short pipe, a gas outlet short pipe, a gas inlet short pipe, a gas.
Detailed Description
The present invention will be described with reference to the accompanying drawings and embodiments.
Fig. 1 is a schematic structural diagram of an automatic carbon dioxide concentration measuring system in a field crop group provided by the embodiment of the present invention, and fig. 2 is a schematic structural diagram of a gas collecting device provided by the embodiment of the present invention.
Referring to fig. 1 and 2, an embodiment of the present invention provides an automatic measuring system for carbon dioxide concentration in field crop groups, including a gas collecting device. The gas collection device comprises a multi-port gas exhaust 1, each gas inlet end of the multi-port gas exhaust 1 is connected with an electromagnetic valve 2, the gas inlet end of the multi-port gas exhaust 1 is communicated with the gas outlet end of the electromagnetic valve 2, the gas inlet end of the electromagnetic valve 2 is connected to a gas collection area through a collection channel 3, and the collection channel 3 comprises a transparent PVC hose. The electromagnetic valve 2 is used for controlling the gas in the collection channel 3 to enter the multi-port gas exhaust 1, and only one electromagnetic valve 2 controls the corresponding collection channel 3 to be communicated with the multi-port gas exhaust 1 at the same time. The air inlet end of the electromagnetic valve 2 is provided with an air inlet short pipe 8, the air inlet short pipe 8 is respectively communicated with the air inlet end of the electromagnetic valve 2 and the air outlet end of the acquisition channel 3, the air inlet short pipe 8 is connected with the acquisition channel 3, one end of the air inlet short pipe is extended out of the shell of the acquisition device, and the acquisition channel 3 is convenient to replace subsequently. Because the gaseous simultaneous processing of multichannel collection, for preventing that the rain and dew water droplet from getting into the gas circuit, consequently acquisition channel 3 sets up acquisition area's one end is provided with gaseous buffer bottle 7 for the gaseous of buffer memory collection, gaseous buffer bottle 7 with acquisition channel 3's inlet end communicates.
The end of giving vent to anger of multi-port gas row 1 connects an aspiration pump 4, the end of giving vent to anger of multi-port gas row 1 with the inlet end of aspiration pump 4 communicates, the end of giving vent to anger of aspiration pump 4 communicates with the inlet end of gas analysis device 5, in this embodiment gas analysis device 5 is including the infrared carbon dioxide analysis appearance of automatic data recording function. The electromagnetic valve 2 and the air pump 4 are both electrically connected with a controller 6, the controller 6 is used for controlling the electromagnetic valve 2 and the air pump 4, specifically, the controller 6 is used for controlling the electromagnetic valve to be opened or closed, and when the gas collected by one collecting channel 3 is detected, the electromagnetic valve 2 corresponding to the current collecting channel 3 is closed. And then controlling the electromagnetic valve 2 corresponding to the other collecting channel 3 to be opened, and simultaneously controlling the air pump 4 to work to send the gas into the gas analysis device 5.
When the gas analysis device 5 analyzes the concentration of carbon dioxide, only a small amount of gas is needed, and the amount of gas collected in each collection channel 3 may be too much, so as to avoid high-pressure damage to the gas analysis device 5, a T-shaped pipeline connection 9 is arranged between the gas outlet end of the air pump 4 and the gas inlet end of the gas analysis device 5, the gas inlet end of the T-shaped pipeline connection 9 is communicated with the gas outlet end of the air pump 4, the first gas outlet end of the T-shaped pipeline connection 9 is communicated with the gas inlet end of the gas analysis device 5, and the second gas outlet end of the T-shaped pipeline connection 9 is communicated with the outside. The collected past gas can be discharged through the second gas outlet end of the T-shaped pipe joint 9.
Further, dust impurities may exist in the collected gas, and may cause unnecessary damage to the gas analysis apparatus 5 after entering the gas analysis apparatus 5, so an air dust filter 10 is disposed between the T-shaped pipe joint 9 and the gas analysis apparatus 5 to filter off the dust impurities in the collected gas. The air dust filter 10 is respectively communicated with a first air outlet end of the T-shaped pipeline connecting piece 9 and an air inlet end of the gas analysis device 5.
The system for automatically measuring the concentration of carbon dioxide in a field crop group provided by the embodiment further comprises a power supply 11, wherein the power supply 11 is electrically connected with the controller 6. The outer side of the gas collecting device is also provided with a power switch 12, and the power switch 12 is electrically connected with the controller 6. The controller 6 in this embodiment comprises a single-chip controller.
In the automatic measuring system for the concentration of carbon dioxide in the field crop group provided by the embodiment, the starting time of the gas collecting device is 0 time point, the controller 6 controls the electromagnetic valves 2 to be sequentially opened, the opening time of a single electromagnetic valve 2 is 4 minutes, the next electromagnetic valve 2 is opened after 1 minute intervals, and the process is recycled from the initially opened electromagnetic valve 2 after the opening and closing of all the electromagnetic valves 2 are finished. Meanwhile, the controller 6 controls the air pump 4 to start working when the electromagnetic valve 2 is used for ventilation, and the air pump 4 stops working when the electromagnetic valve 2 is completely closed, so that the aim of sequentially and respectively pumping air is fulfilled. Gas collected by the gas collecting device is subjected to dust filtration by the air dust filter 10, then is sent to the gas analyzing device for concentration measurement, and data are automatically stored.
The system for automatically measuring the concentration of carbon dioxide in the field crop group can measure the concentrations of carbon dioxide in different crop groups treated by different tests or different parts in the same crop group in real time for a long time in a short time. The system can be arranged in a rainproof box to run for a long time after being assembled, and the heating problem of the air pump 4 during long-time work can be effectively relieved by the design that the sampling is controlled by the controller 6 at four-minute intervals and one minute, so that the system provides guarantee for long-time continuous measurement.
Further, the gas flow (1 liter/min) of the air pump 4 used by the gas collecting device of the automatic carbon dioxide concentration measuring system in the field crop group provided by the embodiment is far greater than the gas flow (300 ml/min) of the air pump arranged in the gas analyzing device, so that the original gas in the pipeline can be emptied in a short time when the collecting device is used for sampling, meanwhile, the redundant gas can be discharged through the second gas outlet end of the additionally arranged T-shaped pipeline connecting piece 9, and meanwhile, when the sampling unit does not work, the gas analyzing device can suck air from the second gas outlet end of the T-shaped pipeline connecting piece 9, so that the high-pressure and negative-pressure damages of the gas analyzing device are effectively avoided.
Known by the above-mentioned embodiment, this embodiment provides an automatic survey system of carbon dioxide concentration in field crop crowd, including gaseous collection system, gaseous collection system includes that the multi-port gas is arranged 1, an solenoid valve 2 is all connected to every inlet end of the multi-port gas is arranged 1, the inlet end of the multi-port gas is arranged with the end intercommunication of giving vent to anger of solenoid valve 2, the inlet end of solenoid valve 2 is connected to the gas collection region through an acquisition channel 3. The air outlet end of the multi-port air exhaust 1 is connected with an air pump 4, the air outlet end of the multi-port air exhaust 1 is communicated with the air inlet end of the air pump 4, and the air outlet end of the air pump 4 is communicated with the air inlet end of the gas analysis device 5. The electromagnetic valve 2 and the air pump 4 are both electrically connected with a controller 6, and the controller 6 is used for controlling the electromagnetic valve 2 and the air pump 4. The gas collection device can collect carbon dioxide gas from field crops at the same time through the multi-channel gas exhaust, only one path of gas enters the air pump through the control of the electromagnetic valve at each time, and the gas enters the gas analysis device through the air pump to analyze the concentration of the carbon dioxide. Because the field crops are subjected to gas collection at different positions at the same time, the influence of external factors on the gas concentration is avoided through the collection channel, and the accuracy of the detection result is improved.
It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and if it is replaced, the present invention is only combined with and described in detail with reference to the preferred embodiments, and those skilled in the art should understand that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should also belong to the protection scope of the claims of the present invention.
Claims (10)
1. an automatic measuring system for the concentration of carbon dioxide in a field crop group comprises a gas collecting device, and is characterized in that the gas collecting device comprises a multi-port gas exhaust (1), each gas inlet end of the multi-port gas exhaust (1) is connected with an electromagnetic valve (2), the gas inlet end of the multi-port gas exhaust (1) is communicated with the gas outlet end of the electromagnetic valve (2), and the gas inlet end of the electromagnetic valve (2) is connected to a gas collecting area through a collecting channel (3); the air outlet end of the multi-port air exhaust (1) is connected with an air pump (4), the air outlet end of the multi-port air exhaust (1) is communicated with the air inlet end of the air pump (4), and the air outlet end of the air pump (4) is communicated with the air inlet end of a gas analysis device (5); the electromagnetic valve (2) and the air pump (4) are both electrically connected with a controller (6), and the controller (6) is used for controlling the electromagnetic valve (2) and the air pump (4).
2. The system for automatically determining the concentration of carbon dioxide in a field crop group according to claim 1, wherein a gas buffer bottle (7) is arranged at one end of the collection channel (3) arranged in the collection area, and the gas buffer bottle (7) is communicated with a gas inlet end of the collection channel (3).
3. The system for automatically measuring the concentration of carbon dioxide in a field crop group according to claim 1, wherein an air inlet short pipe (8) is arranged at the air inlet end of the electromagnetic valve (2), and the air inlet short pipe (8) is respectively communicated with the air inlet end of the electromagnetic valve (2) and the air outlet end of the collection channel (3).
4. The system for automatically measuring the concentration of carbon dioxide in a field crop group according to claim 1, wherein a T-shaped pipeline connecting piece (9) is arranged between the air outlet end of the air pump (4) and the air inlet end of the gas analysis device (5), the air inlet end of the T-shaped pipeline connecting piece (9) is communicated with the air outlet end of the air pump (4), the first air outlet end of the T-shaped pipeline connecting piece (9) is communicated with the air inlet end of the gas analysis device (5), and the second air outlet end of the T-shaped pipeline connecting piece (9) is communicated with the outside.
5. The system according to claim 4, wherein an air dust filter (10) is disposed between the T-shaped pipe connection member (9) and the gas analysis device (5), and the air dust filter (10) is respectively communicated with the first gas outlet end of the T-shaped pipe connection member (9) and the gas inlet end of the gas analysis device (5).
6. The system for automatically determining the concentration of carbon dioxide in a field crop population according to any one of claims 1 to 5, wherein the gas analysis device (5) comprises an infrared carbon dioxide analyzer having an automatic data recording function.
7. The system according to claim 6, wherein the collection channel (3) comprises a transparent PVC hose.
8. The system according to claim 7, further comprising a power source (11), wherein the power source (11) is electrically connected to the controller (6).
9. The system for automatically determining the concentration of carbon dioxide in a field crop population according to claim 8, wherein a power switch (12) is further arranged outside the gas collection device, and the power switch (12) is electrically connected with the controller (6).
10. The system according to claim 9, wherein the controller (6) comprises a single-chip microcomputer controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584015.5U CN209745939U (en) | 2019-04-26 | 2019-04-26 | Automatic carbon dioxide concentration measuring system in field crop group |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920584015.5U CN209745939U (en) | 2019-04-26 | 2019-04-26 | Automatic carbon dioxide concentration measuring system in field crop group |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209745939U true CN209745939U (en) | 2019-12-06 |
Family
ID=68721992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920584015.5U Active CN209745939U (en) | 2019-04-26 | 2019-04-26 | Automatic carbon dioxide concentration measuring system in field crop group |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209745939U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917084A (en) * | 2019-04-26 | 2019-06-21 | 山东农业大学 | Gas concentration lwevel automatic measuring system and measuring method in field crop group |
| CN109917084B (en) * | 2019-04-26 | 2024-05-31 | 山东农业大学 | Automatic determination system and determination method for carbon dioxide concentration in large Tian Zuowu group |
-
2019
- 2019-04-26 CN CN201920584015.5U patent/CN209745939U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109917084A (en) * | 2019-04-26 | 2019-06-21 | 山东农业大学 | Gas concentration lwevel automatic measuring system and measuring method in field crop group |
| CN109917084B (en) * | 2019-04-26 | 2024-05-31 | 山东农业大学 | Automatic determination system and determination method for carbon dioxide concentration in large Tian Zuowu group |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6904815B2 (en) | Configurable multi-point sampling method and system for representative gas composition measurements in a stratified gas flow stream | |
| CN206594052U (en) | A kind of self-alignment gas-detecting device | |
| CN112526070B (en) | LEL and VOC combination formula waste gas analysis system | |
| CN205643314U (en) | Gaseous composition sensor probe of integrated form and detection structure | |
| CN105737905A (en) | Livestock house air environment quality testing system and use method thereof | |
| CN115876508B (en) | Improved generation computer lab new trend system | |
| CN204909457U (en) | Animal expired gas detector | |
| CN207336476U (en) | Smoke flue gas sampling survey meter | |
| CN103454379B (en) | A kind of gas measuring method and device | |
| US6976397B2 (en) | Multi-point sampling method for obtaining isokinetic fluid composition flows in a non-uniform velocity flow field | |
| CN209745939U (en) | Automatic carbon dioxide concentration measuring system in field crop group | |
| CN209841839U (en) | Factory boundary type monitor used among different odor source manufacturers | |
| CN114200087A (en) | Expiration tester and using method thereof | |
| CN205384482U (en) | Grain feelings intelligence observing and controlling system | |
| CN210923465U (en) | Carbon dioxide on-line monitoring system of coal-fired power plant | |
| CN113865647B (en) | Carbon emission monitoring system based on CEMS | |
| CN109917084B (en) | Automatic determination system and determination method for carbon dioxide concentration in large Tian Zuowu group | |
| CN107085079A (en) | A kind of Artificial Olfactory device and organic pollution control device | |
| CN212111353U (en) | Environmental air monitoring system | |
| CN106918475B (en) | Ship tail gas particulate matter dilution sampling system | |
| CN106123951B (en) | A kind of film covering aerobic compost dual-purpose type gas, pressure monitoring device | |
| CN211576948U (en) | Automatic comprehensive smoke and dust tester | |
| CN208399470U (en) | A kind of gridding air auto-monitoring station on-Line Monitor Device | |
| CN201229293Y (en) | Negative-pressure pipe mash gas getting and measuring device | |
| CN213481827U (en) | Continuous sampling device of aerosol |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |