Volatile gas collecting device for whole plant seedlings

Abstract

The invention provides a volatile gas collection device for whole plant seedlings, and relates to the field of plant research, the volatile gas collection device comprises a tripod, the upper part of the tripod is slidably provided with a telescopic rod, the upper end of the telescopic rod is in threaded connection with a mounting sleeve, and the middle part of the mounting sleeve is slidably connected with a support rod; a detection device is arranged on the right side of the supporting rod, and a power output device is arranged on the left side of the supporting rod. Through the detection device, the influence of environmental factors on the generated volatile gas in the development process of the whole plant seedling can be clearly known, so that the change of the volatile gas generated by the whole plant seedling caused by temperature, humidity and photosynthetically active radiation in different change ranges can be subjected to data monitoring, and the experiment accuracy is improved; volatile gas generated in the development process of the whole seedlings of the plant can be collected through the gas collecting device, the mass of the collected gas is measured through the mass flow meter, and the gas collecting convenience is improved.

Description

Technical Field

[0001] The invention relates to the technical field of plant research, in particular to a volatile gas collection device for whole plant seedlings. Background Art

[0002] The emission of plant-derived volatile organic compounds (BVOCs) accounts for about 90% of the global total VOCs emissions. Its emissions are easily affected by environmental factors (temperature, light, soil moisture, saturated water vapor pressure difference, wind speed, wind direction, O3 and CO2 concentrations, etc.). The significance of studying plant volatile gases (BVOCs) lies in the fact that BVOCs are highly active and have large emissions, and play an important role in the formation of atmospheric ozone and secondary organic aerosols.

[0003] BVOCs are low-boiling, volatile hydrocarbons synthesized in plants through secondary metabolism, mainly including isoprene, monoterpenes and other active and inactive VOCs. Due to their strong chemical activity and high total emissions, BVOCs play an important role in atmospheric chemical processes. They are not only carriers of various pollutants in the air, but also important precursors in atmospheric chemistry and photochemical processes. In recent years, with the increase in urban photochemical pollution events, the impact of global environmental changes on the release of plant BVOCs has attracted much attention.

[0004] During the growth process of plants, volatile gases are mainly collected through adsorption solvent elution method and adsorption thermal desorption method. At the same time, the volatile gases produced by the whole plant seedlings are different under the influence of temperature, humidity and photosynthetic active radiation in the environment. Most of the existing plant volatile gas collection devices cannot effectively measure the specific data of volatile gases produced by the whole plant seedlings under the influence of different environmental factors. It is necessary to design a volatile gas collection device for whole plant seedlings to solve the above-mentioned problems. Summary of the invention

[0005] In view of the deficiencies in the prior art, the present invention provides a volatile gas collection device for whole plant seedlings, which solves the problem of inconvenience in collecting volatile gases from whole plant seedlings in the prior art.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: a volatile gas collection device for whole plant seedlings, comprising a tripod and a gas collection device, a telescopic rod is slidably provided on the upper part of the tripod, a mounting sleeve is threadedly connected to the upper end of the telescopic rod, a support rod is slidably connected to the middle part of the mounting sleeve, a detection device is provided on the right side of the support rod, and an electric power output device is provided on the left side of the support rod; the detection device comprises a fixed plate, a temperature sensor is provided on the upper left side of the fixed plate, a humidity sensor is provided on the upper right side of the fixed plate, and a bottom front side of the fixed plate is provided There is a photosynthetically active radiation sensor, and a photosynthetically active radiation display is arranged on the upper front side of the fixed disk; a plurality of connecting frames are equidistantly arranged on the bottom of the fixed disk, and a shading film is arranged on the outer side of the connecting frame; the gas collecting device includes a fixed frame, an air diffuser, a first connecting pipe and a collecting box, a fan is fixedly connected to the middle of the fixed frame, a first connecting head is arranged at the left end of the connecting pipe, and a second connecting head is arranged at the right end of the connecting pipe, the first connecting head is threadedly connected to the upper part of the air diffuser, a connecting pipe is arranged on the left side of the collecting box, and the second connecting head is threadedly connected to the left end of the connecting pipe.

[0007] Preferably, a mass flow meter is provided on the outer side of the connecting pipe, and a solenoid valve is provided on the outer side of the connecting pipe.

[0008] Preferably, a first locking bolt is provided on the outer side of the upper part of the tripod, support plates are provided at the bottom ends of the three legs of the tripod, sockets are provided on the upper parts of the support plates, and ground bolts are provided inside the sockets.

[0009] Preferably, a second locking bolt is provided on the upper portion of the mounting sleeve.

[0010] Preferably, the power output device includes a fixed frame, a mobile power supply device is fixedly connected to the middle part of the fixed frame, a second connecting rod is provided at the middle part of the upper end of the fixed frame, and the mobile power supply device is used to power the temperature sensor, humidity sensor, photosynthetically active radiation sensor, photosynthetically active radiation display and mass flow meter.

[0011] Preferably, a first connecting rod is provided at the middle of the left and right sides of the upper end of the fixing plate.

[0012] Preferably, the fixing frame is fixedly connected to the middle part of the bottom end of the fixing plate, and the air diffuser is fixedly connected to the middle part of the fixing plate.

[0013] Preferably, the outer diameter of the connecting frame is 30 cm, the inner diameter of the connecting frame is 28 cm, the thickness of the connecting frame is 3 cm, the size of the shading film is 30 cm×180 cm, and the thickness of the shading film is 1 mm.

[0014] Working principle: first, place the whole plant seedling together with the cultivation pot on a flat ground, open the tripod support, extend the telescopic rod upward, tighten the first locking bolt to fix the position of the telescopic rod, and fix the tripod on the ground by inserting the ground bolt into the socket set on the upper part of the support plate to increase its stability. Then, the bottom end of the mounting sleeve is threadedly connected to the top of the telescopic rod, the support rod sleeve is set inside the mounting sleeve, and the second locking bolt is tightened to tighten the connection between the support rod and the mounting sleeve. Secondly, the fixed plate is installed on the right side of the support rod through the first connecting rod, and the fixed frame is installed on the left side of the support rod through the second connecting rod. The nuts are threadedly connected at the upper ends of the first connecting rod and the second connecting rod to fix the first connecting rod and the second connecting rod on the support rod. Further, the temperature sensor, humidity sensor, photosynthetic active radiation sensor and photosynthetic active radiation display are installed on the fixed plate, the fixing frame and the fan are installed at the bottom of the fixed plate, and the mobile electric The source device is installed inside the fixed frame, and the temperature sensor, humidity sensor, photosynthetically active radiation sensor and photosynthetically active radiation display are powered by the mobile power supply device. Finally, the first connector at the left end of the connecting pipe is installed with the upper end of the air diffuser, and the second connector at the right end of the connecting pipe is installed with the left end of the connecting pipe. During use, the connecting frame is first lowered to allow the shading film to cover the entire plant seedling together with the cultivation pot. Then, during the development of the entire plant seedling, the temperature and humidity in the plant growth environment are detected by the temperature sensor and the humidity sensor, and the photosynthetically active radiation in the spectral range of 400-700nm is measured by the photosynthetically active radiation sensor and the photosynthetically active radiation display, and the measurement data is displayed. Secondly, the volatile gas generated by the entire plant seedling during the development process is blown upward into the air diffuser through the fan, and is input into the collection box through the connecting pipe for collection. In this process, the mass of the collected volatile gas is measured by the mass flowmeter.

[0015] The present invention provides a volatile gas collection device for whole plant seedlings. The device has the following beneficial effects: 1. The present invention detects the temperature and humidity in the plant growth environment through a temperature sensor and a humidity sensor, measures the photosynthetically active radiation in the spectral range of 400-700nm through a photosynthetically active radiation sensor and a photosynthetically active radiation display, and displays the measurement data, so as to clearly understand the influence of environmental factors on the volatile gases produced by the whole plant seedlings during the development process, and monitor the changes of volatile gases produced by the whole plant seedlings caused by temperature, humidity and photosynthetically active radiation in different variation ranges, thereby increasing the accuracy of the experiment and increasing the support of experimental data.

[0016] 2. The present invention can effectively collect the volatile gases generated by the entire plant seedling during the development process through the gas collection device, and measure the mass of the collected volatile gases through a mass flow meter. Within different environmental change ranges, the gases can be collected in a collection box and then transported, so as to detect and study the volatile gases collected within different environmental change ranges, thereby increasing convenience and controllability of volatile gas changes.

[0017] 3. The present invention uses a tripod to fix and install the detection device, the power output device, the connecting frame and the shading film, which increases the convenience of shading the entire plant seedling, detecting and collecting volatile gases. It is also easy to carry, install and disassemble, and can adapt to different sites and environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the three-dimensional structure of the present invention; Figure 2 It is a front view of the present invention; Figure 3 It is a schematic diagram of the three-dimensional structure of the support rod, the detection device and the power output device of the present invention; Figure 4 It is a bottom view of the three-dimensional structure of the support rod, the detection device and the power output device of the present invention; Figure 5 It is a schematic diagram of the disassembled structure of the support rod, the fixing frame and the fixing plate of the present invention; Figure 6 It is a schematic diagram of the three-dimensional structure of the gas collection device of the present invention; Figure 7 It is a schematic diagram of the three-dimensional structure of the tripod of the present invention; Figure 8 It is a schematic diagram of the three-dimensional structure of the connecting frame and the light-shielding film of the present invention.

[0019] Among them, 1. tripod; 101. telescopic rod; 102. first locking bolt; 103. support plate; 104. socket; 105. ground bolt; 2. installation sleeve; 201. second locking bolt; 3. support rod; 4. detection device; 401. fixing plate; 402. first connecting rod; 403. temperature sensor; 404. humidity sensor; 405. photosynthetically active radiation sensor; 406. photosynthetically active radiation display; 5. power output device; 501. fixing frame; 502. second connecting rod; 503. mobile power supply device; 6. gas collection device; 601. fixing frame; 602. fan; 603. air diffuser; 604. connecting pipe; 605. first connector; 606. second connector; 607. collection box; 608. connecting pipe; 609. solenoid valve; 610. mass flow meter; 7. connecting frame; 8. shading film. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention. Example

[0021] Please refer to the attached Figure 1 - Attachment Figure 8 The embodiment of the present invention provides a volatile gas collection device for whole plant seedlings, comprising a tripod 1 and a gas collection device 6, wherein a telescopic rod 101 is slidably provided on the upper part of the tripod 1, a mounting sleeve 2 is threadedly connected to the upper end of the telescopic rod 101, a support rod 3 is slidably connected to the middle part of the mounting sleeve 2, a detection device 4 is provided on the right side of the support rod 3, and a power output device 5 is provided on the left side of the support rod 3; the detection device 4 comprises a fixed plate 401, a temperature sensor 403 is provided on the upper left side of the fixed plate 401, a humidity sensor 404 is provided on the upper right side of the fixed plate 401, a photosynthetic active radiation sensor 405 is provided on the bottom front side of the fixed plate 401, and the fixed plate 40 1 is provided with a photosynthetically active radiation display 406; a plurality of connecting frames 7 are equidistantly provided at the bottom of the fixed disk 401, and a light shielding film 8 is provided on the outer side of the connecting frame 7; the gas collecting device 6 comprises a fixed frame 601, an air diffuser 603, a first connecting pipe 604 and a collecting box 607, a fan 602 is fixedly connected to the middle of the fixed frame 601, a first connecting head 605 is provided at the left end of the connecting pipe 604, a second connecting head 606 is provided at the right end of the connecting pipe 604, the first connecting head 605 is threadedly connected to the upper part of the air diffuser 603, a connecting pipe 608 is provided on the left side of the collecting box 607, and the second connecting head 606 is threadedly connected to the left end of the connecting pipe 608.

[0022] Please refer to the attached Figure 6 A mass flow meter 610 is provided on the outside of the connecting pipe 604, and a solenoid valve 609 is provided on the outside of the connecting pipe 608. The mass flow meter 610 is used to measure the mass of the collected volatile gas.

[0023] Please refer to the attached Figure 7 A first locking bolt 102 is provided on the outer side of the upper part of the tripod 1, and a support plate 103 is provided at the bottom end of each of the three legs of the tripod 1. A socket 104 is provided on the upper part of the support plate 103, and a ground bolt 105 is provided inside the socket 104, so as to increase the stability of the tripod 1 placed on the ground and prevent it from tipping over.

[0024] Please refer to the attached Figure 5A second locking bolt 201 is provided on the upper part of the mounting sleeve 2 to facilitate locking the mounting sleeve 2 and the support rod 3 to prevent falling off.

[0025] Please refer to the attached Figure 3 - Attachment Figure 5 The power output device 5 includes a fixed frame 501, a mobile power supply device 503 is fixedly connected to the middle of the fixed frame 501, and a second connecting rod 502 is provided in the middle of the upper end of the fixed frame 501. The mobile power supply device 503 is used to power the temperature sensor 403, the humidity sensor 404, the photosynthetic active radiation sensor 405, the photosynthetic active radiation display 406 and the mass flow meter 610. The power output device 5 is used to power the entire device, which increases the convenience of moving the power supply. At the same time, the weight of the left and right ends of the support rod 3 can be made the same, preventing one end from tilting and causing the stability of the device to be reduced.

[0026] Please refer to the attached Figure 5 A first connecting rod 402 is provided at the middle of the left and right sides of the upper end of the fixing plate 401 to facilitate the installation and fixation of the fixing plate 401 and the support rod 3.

[0027] Please refer to the attached Figure 3 - Attachment Figure 4 The fixing frame 601 is fixedly connected to the middle of the bottom end of the fixing plate 401, and the air diffuser 603 is fixedly connected to the middle of the fixing plate 401, which facilitates the installation and disassembly of the fixing frame 601 and the air diffuser 603, increases the convenience of installation and disassembly, and can also facilitate the collection of volatile gases.

[0028] Please refer to the attached Figure 8 The outer diameter of the connecting frame 7 is 30 cm, the inner diameter of the connecting frame 7 is 28 cm, the thickness of the connecting frame 7 is 3 cm, the size of the shading film 8 is 30 cm × 180 cm, the thickness of the shading film 8 is 1 mm, and the whole seedlings of plants of different sizes can be shielded to increase convenience.

[0029] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A volatile gas collection device for whole plant seedlings, comprising a tripod (1) and a gas collection device (6), characterized in that: A telescopic rod (101) is slidably provided on the upper part of the tripod stand (1); a mounting sleeve (2) is threadedly connected to the upper end of the telescopic rod (101); a support rod (3) is slidably connected to the middle part of the mounting sleeve (2); a detection device (4) is provided on the right side of the support rod (3); and a power output device (5) is provided on the left side of the support rod (3); The detection device (4) comprises a fixed plate (401), a temperature sensor (403) is arranged on the left side of the upper part of the fixed plate (401), a humidity sensor (404) is arranged on the right side of the upper part of the fixed plate (401), a photosynthetically active radiation sensor (405) is arranged on the front side of the bottom of the fixed plate (401), and a photosynthetically active radiation display (406) is arranged on the front side of the upper part of the fixed plate (401); A plurality of connecting frames (7) are arranged at equal intervals on the bottom of the fixed plate (401), and a light shielding film (8) is arranged on the outer side of the connecting frame (7); The gas collection device (6) comprises a fixing frame (601), an air diffuser (603), a first connecting pipe (604) and a collection box (607); a fan (602) is fixedly connected to the middle of the fixing frame (601); a first connecting head (605) is provided at the left end of the connecting pipe (604); a second connecting head (606) is provided at the right end of the connecting pipe (604); the first connecting head (605) is threadedly connected to the upper part of the air diffuser (603); a connecting pipe (608) is provided on the left side of the collection box (607); and the second connecting head (606) is threadedly connected to the left end of the connecting pipe (608).

2. The volatile gas collection device for whole plant seedlings according to claim 1, characterized in that: A mass flow meter (610) is provided on the outside of the connecting pipe (604), and a solenoid valve (609) is provided on the outside of the connecting pipe (608).

3. The volatile gas collection device for whole plant seedlings according to claim 1, characterized in that: A first locking bolt (102) is arranged on the outer side of the upper part of the tripod stand (1), a support plate (103) is arranged at the bottom end of each of the three legs of the tripod stand (1), a socket (104) is arranged on the upper part of each of the support plates (103), and a ground bolt (105) is arranged inside each of the sockets (104).

4. The volatile gas collection device for whole plant seedlings according to claim 1, characterized in that: A second locking bolt (201) is provided on the upper portion of the installation sleeve (2).

5. The volatile gas collection device for whole plant seedlings according to claim 1, characterized in that: The power output device (5) comprises a fixed frame (501), a mobile power supply device (503) is fixedly connected to the middle of the fixed frame (501), a second connecting rod (502) is provided at the middle of the upper end of the fixed frame (501), and the mobile power supply device (503) is used to supply power to the temperature sensor (403), the humidity sensor (404), the photosynthetically active radiation sensor (405), the photosynthetically active radiation display (406), and the mass flow meter (610).

6. The volatile gas collection device for whole plant seedlings according to claim 1, characterized in that: First connecting rods (402) are provided at the middle of the left and right sides of the upper end of the fixing plate (401).

7. The volatile gas collection device for whole plant seedlings according to claim 1, characterized in that: The fixing frame (601) is fixedly connected to the middle of the bottom end of the fixing plate (401), and the air diffuser (603) is fixedly connected to the middle of the fixing plate (401).

8. The volatile gas collection device for whole plant seedlings according to claim 1, characterized in that: The outer diameter of the connecting frame (7) is 30 cm, the inner diameter of the connecting frame (7) is 28 cm, the thickness of the connecting frame (7) is 3 cm, the size of the shading film (8) is 30 cm×180 cm, and the thickness of the shading film (8) is 1 mm.

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