CN114155773A - Teaching type greenhouse effect analogue means - Google Patents
Teaching type greenhouse effect analogue means Download PDFInfo
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- CN114155773A CN114155773A CN202111239005.6A CN202111239005A CN114155773A CN 114155773 A CN114155773 A CN 114155773A CN 202111239005 A CN202111239005 A CN 202111239005A CN 114155773 A CN114155773 A CN 114155773A
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- Prior art keywords
- reaction chamber
- carbon dioxide
- greenhouse effect
- gas
- effect simulation
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- 230000000694 effects Effects 0.000 title claims abstract description 26
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims abstract description 114
- 239000001569 carbon dioxide Substances 0.000 claims abstract description 57
- 229910002092 carbon dioxide Inorganic materials 0.000 claims abstract description 57
- 230000005540 biological transmission Effects 0.000 claims abstract description 22
- 238000004088 simulation Methods 0.000 claims abstract description 22
- 230000001105 regulatory effect Effects 0.000 claims abstract description 12
- 239000000872 buffer Substances 0.000 claims abstract description 7
- 239000000463 material Substances 0.000 claims abstract description 6
- 238000006243 chemical reaction Methods 0.000 claims description 91
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid group Chemical group C(CC(O)(C(=O)O)CC(=O)O)(=O)O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 57
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 28
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 14
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 14
- 239000003380 propellant Substances 0.000 claims description 12
- 239000003795 chemical substances by application Substances 0.000 claims description 8
- 239000010902 straw Substances 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 229920000098 polyolefin Polymers 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 238000009792 diffusion process Methods 0.000 abstract description 3
- 230000008635 plant growth Effects 0.000 description 3
- 239000002994 raw material Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 230000012010 growth Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
Images
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
- G09B23/38—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for botany
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B23/00—Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
Abstract
A teaching-type greenhouse effect simulation apparatus, comprising: a plant cultivation room, wherein the plant cultivation room is sealed and cultivated with plants; a carbon dioxide generator for generating carbon dioxide; one end of the transmission pipeline is connected with the carbon dioxide generator; the gas disperser comprises a gas inlet end and a plurality of gas outlet ends, the gas inlet end is connected with the other end of the transmission pipeline, and the plurality of gas outlet ends are respectively connected with different positions of the plant culture chamber; and the gas flow rate regulating valve is arranged on the transmission pipeline and is used for regulating the flow rate of the gas flow in the transmission pipeline. The teaching type greenhouse effect simulation device disclosed by the invention realizes regulation and control of carbon dioxide in a plant production environment, is simple and easily available in materials, is convenient to manually build, and is suitable for teaching demonstration; the flow rate of carbon dioxide is accurately regulated, the diffusion in the plant culture chamber is uniform, and the experimental precision is high; the pressure buffer meter is arranged, so that the equipment safety is high, and the teaching instrument is suitable for students in teaching to operate.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of teaching experiment devices, in particular to a teaching type greenhouse effect simulation device.
[ background of the invention ]
With the continuous aggravation of climate change, researches in recent years find that the greenhouse effect can cause the reduction of crop nutrition quality and bring hidden dangers to human health, but a solution cannot be brought out at present. The current face (free Air centralized experiment) experimental equipment for the carbon dioxide enrichment technology has high cost and short equipment, which severely limits scientific research.
[ summary of the invention ]
The invention aims to provide a teaching type greenhouse effect simulation device which is simple, convenient, safe and low in cost.
The purpose of the invention is realized by the following technical scheme:
a teaching-type greenhouse effect simulation apparatus, comprising:
a plant cultivation room, wherein the plant cultivation room is sealed and cultivated with plants;
a carbon dioxide generator for generating carbon dioxide;
one end of the transmission pipeline is connected with the carbon dioxide generator;
the gas disperser comprises a gas inlet end and a plurality of gas outlet ends, the gas inlet end is connected with the other end of the transmission pipeline, and the plurality of gas outlet ends are respectively connected with different positions of the plant culture chamber;
and the gas flow rate regulating valve is arranged on the transmission pipeline and is used for regulating the flow rate of the gas flow in the transmission pipeline.
In one embodiment, the carbon dioxide generator comprises a first reaction chamber and a second reaction chamber which respectively contain different generants, the first reaction chamber is communicated with the second reaction chamber, the second reaction chamber is communicated with the transmission pipeline, and the generants in the first reaction chamber are introduced into the second reaction chamber and react with the generants in the second reaction chamber to generate carbon dioxide.
In one embodiment, the generating agent contained in the first reaction chamber is a citric acid solution, and the generating agent contained in the second reaction chamber is a sodium bicarbonate solution.
In one embodiment, the first reaction chamber and the second reaction chamber are formed by a bottle of flexible material.
In one embodiment, the first reaction chamber is communicated with the second reaction chamber through a straw, one end of the straw is inserted into the generating agent in the first reaction chamber, and the other end of the straw is suspended above the generating agent in the second reaction chamber.
In one embodiment, a conduit is further disposed between the first reaction chamber and the second reaction chamber, and two ends of the conduit are respectively suspended above the propellant in the first reaction chamber and the propellant in the second reaction chamber.
In one embodiment, a pressure buffer gauge is arranged on the second reaction chamber.
In one embodiment, the input end of the gas flow rate regulating valve is connected with a damper.
In one embodiment, the plant culture chamber is formed by enclosing a fully transparent polyolefin film and a steel pipe framework, a zipper is arranged at the top of the plant culture chamber, and the plant culture chamber can be opened or closed by opening or closing the zipper.
In one embodiment, the method further comprises the following steps:
and the gas detector is connected with the plant culture chamber through a hose, and detects and displays the concentration of carbon dioxide in the plant culture chamber.
Compared with the prior art, the invention has the following beneficial effects: the teaching type greenhouse effect simulation device disclosed by the invention realizes regulation and control of carbon dioxide in a plant production environment, is simple and easily available in materials, is convenient to manually build, and is suitable for teaching demonstration; the flow rate of carbon dioxide is accurately regulated, the diffusion in the plant culture chamber is uniform, and the experimental precision is high; the pressure buffer meter is arranged, so that the equipment safety is high, and the teaching instrument is suitable for students in teaching to operate.
[ description of the drawings ]
FIG. 1 is a schematic of the present invention.
[ detailed description ] embodiments
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientation or positional relationship indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and are not to be considered limiting of the scope of the present application. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the invention of the present application, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art through specific situations.
Referring to fig. 1, an instructional greenhouse effect simulation apparatus includes: a plant culture chamber 6, a carbon dioxide generator, a transmission pipeline, a gas disperser 7 and a gas flow rate regulating valve 5. The plant cultivation room 6 simulates the growing environment of plants, and plants are cultivated in the room in a closed mode. In order to further simulate the growth effect of plants under the condition of carbon dioxide elevation, a carbon dioxide generator for generating carbon dioxide is provided, and is communicated with the plant cultivation chamber 6, and carbon dioxide is supplied into the plant cultivation chamber 6. Specifically, a transmission pipeline is arranged, one end of the transmission pipeline is connected with the carbon dioxide generator, and the other end of the transmission pipeline can be communicated with the plant culture chamber 6. Preferably, the transmission pipeline is a flexible pipeline, so that the relative positions of the carbon dioxide generator and the plant culture chamber 6 can be flexibly adjusted, and the transmission pipeline is prevented from being damaged and gas is prevented from leaking.
In order to allow carbon dioxide to diffuse more evenly into the plant growth chamber 6, a gas disperser 7 is provided, which comprises an inlet end and a plurality of outlet ends. The gas inlet end of the gas disperser 7 is connected with the other end of the transmission pipeline, the gas outlet ends are respectively connected with different positions of the plant cultivation chamber 6, namely, the transmission pipeline is communicated with the plant cultivation chamber 6 through the gas disperser 7, and the carbon dioxide is dispersed and guided into the plant cultivation chamber 6 through the gas outlet ends of the gas disperser 7 positioned at different positions of the plant cultivation chamber 6. In view of the relatively high quality of carbon dioxide, it is preferred that the gas outlet end is provided at the top of the plant growth chamber 6. Of course, the gas outlet ends may be two, three, four, five, etc., and are not limited in number, and preferably, the gas outlet ends have two and are provided at the top middle position of the plant cultivation room 6.
The teaching type greenhouse effect simulation device of this embodiment still includes gas velocity of flow governing valve 5 for adjust the air current size. The gas flow rate regulating valve 5 is provided on the transport pipe and regulates the flow rate of the carbon dioxide gas in the transport pipe, thereby controlling the carbon dioxide concentration in the plant growth chamber 6.
In one embodiment, the carbon dioxide generator comprises a first reaction chamber 1 and a second reaction chamber 2 containing different generants, respectively. Wherein the first reaction chamber 1 is communicated with the second reaction chamber 2, and carbon dioxide is generated by introducing the generating agent in the first reaction chamber 1 into the second reaction chamber 2 and reacting with the generating agent in the second reaction chamber 2. The second reaction chamber 2 communicates with a transfer pipe to transfer the produced carbon dioxide to the plant cultivation chamber 6 via the transfer pipe.
In one embodiment, the propellant contained in the first reaction chamber 1 is a citric acid solution, and the propellant contained in the second reaction chamber 2 is a sodium bicarbonate solution. The citric acid solution in the first reaction chamber 1 is introduced into the sodium bicarbonate solution in the second reaction chamber 2 and starts to react to generate carbon dioxide.
To achieve the mixing reaction of the generant, i.e., the citric acid solution being continuously pressed into the sodium bicarbonate solution to sustain the production of carbon dioxide, an initial ambient pressure is required: the reaction was initiated by manually squeezing the first reaction chamber 1 to force a stream of citric acid solution through a conduit into the second reaction chamber 2 with sodium bicarbonate solution. To facilitate the pressing, in one of the embodiments, the first reaction chamber 1 and the second reaction chamber 2 are constituted by a bottle of a flexible material.
In one embodiment, the first reaction chamber 1 is communicated with the second reaction chamber 2 through a suction pipe 3, one end of the suction pipe 3 is inserted into the propellant in the first reaction chamber 1, and the other end is suspended above the propellant in the second reaction chamber 2. The initial generation of carbon dioxide gas in the second reaction chamber 2 results in an increase in pressure in the second reaction chamber 2, whereafter carbon dioxide gas is conducted from the second reaction chamber 2 through the conduit into the first reaction chamber 1, resulting in a consequent increase in gas pressure in the first reaction chamber 1 until the gas pressure in the first reaction chamber 1, e.g. above the citric acid solution, forces the citric acid solution again through the suction tube 3 into the second reaction chamber 2, thus forming a cyclic chemical reaction, with a continuous supply of carbon dioxide. Thereby realizing that: the reaction is started by manually squeezing the first reaction chamber 1 to press the citric acid solution into the second reaction chamber 2 to react with the sodium bicarbonate solution, then the citric acid solution can be automatically and circularly introduced due to the increase of the air pressure due to the generation of carbon dioxide gas, the citric acid solution is continuously pressed into the second reaction chamber 2 to maintain the generation of carbon dioxide, and the inflow of the carbon dioxide gas flow into the plant culture chamber 6 is automatically maintained.
In one embodiment, a conduit (not shown) is further disposed between the first reaction chamber 1 and the second reaction chamber 2, and two ends of the conduit are respectively suspended above the propellant in the first reaction chamber 1 and the propellant in the second reaction chamber 2, so as to balance the air pressure in the first reaction chamber 1 and the second reaction chamber 2, thereby pressing the citric acid solution into the straw 3.
In one embodiment, the second reaction chamber 2 is provided with a pressure buffer gauge 4, the pressure buffer gauge 4 is formed by connecting a straight-through hose capable of automatically releasing pressure with a carbon dioxide pressure gauge, the carbon dioxide pressure gauge can read the air pressure in the second reaction chamber 2, and when the air pressure reaches 2kg/cm2When in use, the hose automatically deflates to slowly release pressure, thereby eliminating potential safety hazards.
In one embodiment, the input end of the gas flow rate adjusting valve 5 is connected with a damper for consuming the energy of the gas flow inputted into the gas flow rate adjusting valve 5, so that a more accurate flow rate control can be realized (within the range of 450 ppm and 2000ppm, the error reaches + -50 ppm).
In one embodiment, the plant cultivation chamber 6 is formed by enclosing a full-transparent polyolefin film and a steel pipe framework, the top of the plant cultivation chamber is provided with a zipper 8, and the plant cultivation chamber 6 can be opened or closed by opening or closing the zipper 8.
In one embodiment, the teaching type greenhouse effect simulation apparatus further comprises: and a gas detector 9. The gas detector 9 is connected with the plant cultivation chamber 6 through a hose, so that the gas in the plant cultivation chamber 6 can be conveniently detected and the gas can flexibly move. Specifically, the gas detector 9 is used for detecting and displaying the concentration of carbon dioxide in the plant cultivation chamber 6, and the gas flow is adjusted by the gas flow rate adjusting valve 5 according to the reading on the detector 9, so that the concentration of carbon dioxide in the plant cultivation chamber 6 is controlled. After 4-8 hours of mixing, the concentration of carbon dioxide in the culture chamber fluctuates by + -3%. Then, according to the growth requirement of the plants, the whole plant culture chamber 6 is placed in an external environment with proper illumination temperature, thereby simulating the greenhouse effect.
The invention also discloses a case of carrying out simulation experiments by the teaching type greenhouse effect simulation device.
Case 1: the sodium bicarbonate and citric acid are 150g each, and can maintain the carbon dioxide concentration of 450 + -50 ppm in the cultivation room (plant cultivation room 6) of 1 cubic meter for one week, and the preset concentration can be reached when the reaction occurs for 4-5 hours.
Case 2: the sodium bicarbonate and citric acid are 200g of raw materials respectively, the concentration of carbon dioxide in a cultivation room with 1 cubic meter can be maintained for 700 +/-50 ppm for one week, and the preset concentration can be reached when the reaction occurs for 4-5 hours.
Case 3: the sodium bicarbonate and citric acid are 250g each, and can maintain the carbon dioxide concentration of 950 +/-50 ppm in a cultivation room of 1 cubic meter for one week, and the preset concentration can be reached when the reaction occurs for 5-6 hours.
Case 4: the sodium bicarbonate and citric acid are respectively 300g, the concentration of carbon dioxide in a cultivation room with 1 cubic meter can be maintained for 1200 +/-50 ppm for one week, and the preset concentration can be reached when the reaction occurs for 6-7 hours.
Case 5: 350g of sodium bicarbonate and citric acid raw materials respectively can maintain the carbon dioxide concentration in a cultivation room with 1 cubic meter of 1500 +/-50 ppm for one week, and the preset concentration can be reached when the reaction occurs for 6-7 hours.
Case 6: the sodium bicarbonate and citric acid are 400g of raw materials respectively, the concentration of carbon dioxide in a cultivation room with 1 cubic meter can be maintained for 1800 +/-50 ppm for one week, and the preset concentration can be reached when the reaction occurs for 7-8 hours.
Case 7: the concentration of the carbon dioxide in the cultivation room of 1 cubic meter can be maintained for 2000 +/-50 ppm for one week by 450g of the sodium bicarbonate and the citric acid respectively, and the preset concentration can be reached when the reaction occurs for 7 to 8 hours.
Compared with the prior art, the invention has the following beneficial effects: the teaching type greenhouse effect simulation device disclosed by the invention realizes regulation and control of carbon dioxide in a plant production environment, is simple and easily available in materials, is convenient to manually build, and is suitable for teaching demonstration; the flow rate of carbon dioxide is accurately regulated, the diffusion in the plant culture chamber is uniform, and the experimental precision is high; the pressure buffer meter is arranged, so that the equipment safety is high, and the teaching instrument is suitable for students in teaching to operate.
In light of the foregoing description of the preferred embodiments according to the present application, it is to be understood that various changes and modifications may be made without departing from the spirit and scope of the invention. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. A teaching type greenhouse effect simulation device, comprising:
a plant cultivation room, wherein the plant cultivation room is sealed and cultivated with plants;
a carbon dioxide generator for generating carbon dioxide;
one end of the transmission pipeline is connected with the carbon dioxide generator;
the gas disperser comprises a gas inlet end and a plurality of gas outlet ends, the gas inlet end is connected with the other end of the transmission pipeline, and the plurality of gas outlet ends are respectively connected with different positions of the plant culture chamber;
and the gas flow rate regulating valve is arranged on the transmission pipeline and is used for regulating the flow rate of the gas flow in the transmission pipeline.
2. The teaching type greenhouse effect simulation apparatus of claim 1, wherein the carbon dioxide generator comprises a first reaction chamber and a second reaction chamber respectively containing different generants, the first reaction chamber is communicated with the second reaction chamber, the second reaction chamber is communicated with the transmission pipeline, and the generants in the first reaction chamber are introduced into the second reaction chamber and react with the generants in the second reaction chamber to generate carbon dioxide.
3. The teaching type greenhouse effect simulation apparatus of claim 2, wherein the generating agent contained in the first reaction chamber is a citric acid solution, and the generating agent contained in the second reaction chamber is a sodium bicarbonate solution.
4. The instructional greenhouse effect simulation device of claim 2, wherein the first reaction chamber and the second reaction chamber are composed of bottles of flexible material.
5. The instructional greenhouse effect simulation device of claim 2, wherein the first reaction chamber is communicated with the second reaction chamber through a straw, one end of the straw is inserted into the propellant in the first reaction chamber, and the other end of the straw is suspended above the propellant in the second reaction chamber.
6. The educational greenhouse effect simulation apparatus of claim 5, wherein a conduit is further disposed between the first reaction chamber and the second reaction chamber, and two ends of the conduit are suspended above the propellant in the first reaction chamber and the propellant in the second reaction chamber, respectively.
7. The instructional greenhouse effect simulation device of claim 2, wherein a pressure buffer gauge is provided on the second reaction chamber.
8. The instructional greenhouse effect simulation device of claim 1, wherein a damper is connected to an input end of the gas flow rate adjustment valve.
9. The teaching type greenhouse effect simulation device of claim 1, wherein the plant cultivation room is formed by enclosing a fully transparent polyolefin film and a steel pipe framework, a zipper is arranged at the top of the plant cultivation room, and the plant cultivation room can be opened or closed by opening or closing the zipper.
10. The instructional greenhouse effect simulation apparatus of claim 1, further comprising:
and the gas detector is connected with the plant culture chamber through a hose, and detects and displays the concentration of carbon dioxide in the plant culture chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111239005.6A CN114155773A (en) | 2021-10-25 | 2021-10-25 | Teaching type greenhouse effect analogue means |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111239005.6A CN114155773A (en) | 2021-10-25 | 2021-10-25 | Teaching type greenhouse effect analogue means |
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| CN114155773A true CN114155773A (en) | 2022-03-08 |
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| CN202111239005.6A Pending CN114155773A (en) | 2021-10-25 | 2021-10-25 | Teaching type greenhouse effect analogue means |
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| CN107146511A (en) * | 2017-06-24 | 2017-09-08 | 胡菊兰 | Photosynthesis experimental provision is used in one kind teaching |
| CN107182651A (en) * | 2017-06-16 | 2017-09-22 | 师靖轩 | Simulate greenhouse effects indoor placement Ecological flowerpot |
| CN110910741A (en) * | 2019-12-06 | 2020-03-24 | 南京晓庄学院 | Photosynthesis analogue means is used in biological assay teaching |
| CN210804943U (en) * | 2019-12-03 | 2020-06-19 | 李承轩 | Photosynthesis generator |
| CN213092634U (en) * | 2020-09-25 | 2021-04-30 | 贵州师范学院 | Experimental device for generating oxygen through photosynthesis |
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2021
- 2021-10-25 CN CN202111239005.6A patent/CN114155773A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012044873A (en) * | 2010-08-24 | 2012-03-08 | Ehime Univ | Facility for plant growth |
| CN204229728U (en) * | 2014-12-05 | 2015-03-25 | 甘肃德福生物科技有限公司 | A kind of chlorella photosynthesis teaching and experimental demonstration device |
| CN205902523U (en) * | 2016-08-18 | 2017-01-25 | 四川新生启航农业科技有限公司 | A gaseous conveyor for plant cultivation room |
| CN206451442U (en) * | 2016-12-14 | 2017-08-29 | 阳光富碳农业科技（天津）有限公司 | It is a kind of to be used to obtain gas concentration lwevel and the experimental provision of plant growth relation |
| CN107182651A (en) * | 2017-06-16 | 2017-09-22 | 师靖轩 | Simulate greenhouse effects indoor placement Ecological flowerpot |
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Application publication date: 20220308 |