CN101556747A - Experimental demonstration device for researching influence of gas on plant growth - Google Patents
Experimental demonstration device for researching influence of gas on plant growth Download PDFInfo
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- CN101556747A CN101556747A CNA2008101953095A CN200810195309A CN101556747A CN 101556747 A CN101556747 A CN 101556747A CN A2008101953095 A CNA2008101953095 A CN A2008101953095A CN 200810195309 A CN200810195309 A CN 200810195309A CN 101556747 A CN101556747 A CN 101556747A
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Abstract
The invention provides an experimental demonstration device for researching influence of gas on plant growth, comprising a process chamber, a contrast chamber, a gas generator, a plurality of gas tubes, a suction machine, a gas tube filled with active carbon, and a gas separating valve. The gas separating valve comprises a tee pipe, one end of which is communicated with the process chamber by one gas tube, another end of which is communicated with the contrast chamber by another gas tube, and a third end of which is communicated with the gas tube filled with active carbon. A baffle plate parallel with the gas tube filled with active carbon is arranged in the middle of the tee pipe and tightly matched with the inner wall of the tee pipe. The other end of the gas tube with active carbon is communicated with the suction machine, the gas generator is communicated with the gas tube communicating the process chamber with the gas separating valve, all gas tubes are sealed hermetically, and the process chamber and the top of the contrast chamber are provided with holes.
Description
Technical field:
The present invention relates to a kind of experimental demonstration teaching aid, particularly a kind of experimental demonstration teaching aid of probing into gas to the plant growth effect.
Background technology:
Same soil, fertilizer, light, hot the same, gas is one of key factor essential in the growing process, its role and influence to plant are the important contents in primary school, middle school, high medium different phase science and the biological course.In order to make the student can observe directly the influence of gas to the plant growth, simultaneously also, the student that surplus energy is still arranged provides condition for carrying out more deep probing into, make a gas experimental demonstration teaching aid of plant growth effect is just seemed necessary, by this experimental demonstration teaching aid, the student can carry out scientific experiment, probe into influencing each other between plant and environment, very helpful for the designed capacity that improves student's scientific experiment.
At present, phytotron is widely used in the experiment and research in fields such as plant physiology ecology, plant protection.It is the various weather conditions of simulating nature circle well, accurately control the required various envirment factors of plant growth, thereby realize long-term observation and research to the plant physiology ecological index, disclose plant structure, function and with interactional process of weather and mechanism.
Summary of the invention:
Purpose of the present invention just provides a kind of phytotron of simple semiautomatic control and also realizes probing into the experimental demonstration teaching aid of gas to the plant growth effect, and for achieving the above object, the present invention adopts following technical proposals:
The present invention includes a process chamber and a contrast chamber, a gas generator, an air inlet machine, one contains the wireway of activated charcoal, one divided gas flow valve and some wireways, described process chamber and described contrast chamber adopt light transmissive material to make in shape, volume, towards all identical with aspect such as material, top drilling, same experimental plant is placed in the inside.Described divided gas flow valve comprises a three-way pipe, one end communicates with process chamber through a wireway, one end communicates with the contrast chamber through another wireway, one end communicates with the described wireway that has activated charcoal, be provided with one at the center position of described three-way pipe and be parallel to the described division board that has the wireway of activated charcoal, described division board edge and three-way pipe inner tubal wall closely cooperate, thereby the air that enters is divided into two, feed process chamber and contrast chamber respectively, guarantee the air that the two can obtain to wait homogenous quantities, the wireway other end of described band activated charcoal communicates with the air inlet machine, described gas generator is connected with the wireway that is communicated with process chamber and divided gas flow valve, and the connection between all wireways is hermetic seal.The effect of activated charcoal is that the air that enters is cleaned, and is caused thereby the variation that guarantees plant is the gas that produced by gas generator.The air inlet machine provides aerodynamic force, gets rid of the influence of natural air to experimental plant, sends into experimental gas simultaneously in process chamber.During use, at first some kindred plants should be put into the same position of process chamber and contrast chamber respectively; Open the air inlet machine then, up to the clean gas that the air in process chamber and the contrast chamber all is changed to behind active carbon purifying; Open gas generator subsequently, begin to experimentize.In experimentation, the air inlet machine is worked all the time, finishes up to experiment.And gas generator is determined the opening time according to the experiment needs.As in experimentation, noting the time of gas generator operation, then quantitatively learning gas to the influence of plant.
This device material therefor is simple, is convenient to make, in addition, can also the better controlled environmental baseline, guarantee experimental result accurately and reliably, as be used photosynthetic analyser, plant physiology analytical equipments such as capnograph can also be carried out the further investigation of plant physiology aspect.
Description of drawings:
Accompanying drawing is a structure principle chart of the present invention.
Embodiment:
Below in conjunction with accompanying drawing the present invention is elaborated, the present invention includes a process chamber 1 and a contrast chamber 2,3, one air inlet machines 4, of a gas generator contain the wireway 5 of device activated charcoal, one divided gas flow valve 6 and some wireways, described process chamber 1 and described contrast chamber 2 adopt light transmissive material to make process chamber top drilling 10 in shape, volume, towards all identical with aspect such as material, contrast chamber top drilling 20, same experimental plant is placed in the inside.Described divided gas flow valve 6 comprises a three-way pipe 60, one end communicates with process chamber 1 through a wireway 11, one end communicates with contrast chamber 2 through another wireway 21, one end communicates with the described wireway 5 that has activated charcoal, be provided with one at the center position of described three-way pipe 60 and be parallel to the described division board 61 that has the wireway 5 of activated charcoal, the edge of described division board 61 and described three-way pipe 60 inner tubal walls closely cooperate, thereby the air that enters is divided into two, enter process chamber 1 and contrast chamber 2 respectively, guarantee that process chamber 1 and contrast chamber 2 can obtain to wait the air of homogenous quantities.The other end of the wireway 5 of described band activated charcoal communicates with air inlet machine 4, and described gas generator 3 is connected with the wireway 11 that is communicated with process chamber 1 and divided gas flow valve 6.The effect of activated charcoal is that the air that enters is cleaned, and is caused thereby the variation that guarantees plant is the gas that produced by gas generator 3.Air inlet machine 4 provides aerodynamic force, gets rid of the influence of natural air to experimental plant, sends into experimental gas simultaneously in process chamber 1.During use, at first the kindred plant that is no less than three strains should be put into the same position of process chamber 1 and contrast chamber 2 respectively; Open air inlet machine 4 then,, open gas generator 3 subsequently, begin to experimentize up to the clean gas that the air in process chamber 1 and the contrast chamber 2 all is changed to behind active carbon purifying.In experimentation, air inlet machine 4 is worked all the time, finishes up to experiment.And gas generator 3 determines when unlatching according to the experiment needs.As in experimentation, noting the time of gas generator 3 operation, then quantitatively learning gas to the influence of plant.
Claims (2)
1, a kind of experimental demonstration device of probing into gas to the plant growth effect, comprise a process chamber and a contrast chamber, a gas generator, some wireways, it is characterized in that also comprising an air inlet machine, a device has wireway and divided gas flow valve of activated charcoal, described divided gas flow valve comprises a three-way pipe, one end communicates with process chamber through a wireway, one end communicates with the contrast chamber through another wireway, one end has the wireway of activated charcoal to communicate with described device, be provided with one at the center position of described three-way pipe and be parallel to the described division board that has activated charcoal, described division board and three-way pipe inner tubal wall closely cooperate, the wireway other end of described band activated charcoal communicates with the air inlet machine, described gas generator is connected with the wireway that is communicated with process chamber and divided gas flow valve, and the connection between all wireways is hermetic seal, described process chamber and contrast chamber top drilling.
2, a kind of experimental provision of probing into gas to the plant growth effect according to claim 1 is characterized in that described process chamber and described contrast chamber in shape, volume, towards all identical with aspect such as material, adopt light transmissive material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101953095A CN101556747B (en) | 2008-10-13 | 2008-10-13 | Experimental demonstration device for researching influence of gas on plant growth |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008101953095A CN101556747B (en) | 2008-10-13 | 2008-10-13 | Experimental demonstration device for researching influence of gas on plant growth |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101556747A true CN101556747A (en) | 2009-10-14 |
| CN101556747B CN101556747B (en) | 2011-01-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008101953095A Expired - Fee Related CN101556747B (en) | 2008-10-13 | 2008-10-13 | Experimental demonstration device for researching influence of gas on plant growth |
Country Status (1)
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| CN (1) | CN101556747B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248887A (en) * | 2016-10-10 | 2016-12-21 | 南京林业大学 | A kind of smoke the experimental provision that gas is coerced for plant is carried out PM2.5 |
-
2008
- 2008-10-13 CN CN2008101953095A patent/CN101556747B/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106248887A (en) * | 2016-10-10 | 2016-12-21 | 南京林业大学 | A kind of smoke the experimental provision that gas is coerced for plant is carried out PM2.5 |
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| Publication number | Publication date |
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| CN101556747B (en) | 2011-01-12 |
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Granted publication date: 20110112 Termination date: 20111013 |