CN-116718436-B - Sampling device for measuring greenhouse gas emission in wetland

Abstract

The invention discloses a sampling device for measuring greenhouse gas emission in a wetland, which comprises a power component and is characterized in that the power component comprises a motor, an output shaft of the motor is fixedly connected with an L-shaped rod, round rods of the L-shaped rod are arranged in straight grooves of a connecting rod, straight grooves are respectively arranged at two ends of the connecting rod, round blocks are respectively arranged in the symmetrical straight grooves, the round blocks are respectively and fixedly connected with a cross block, the cross blocks are respectively and fixedly connected with a hollow rod, vertical rods are respectively arranged in the hollow rods, and the vertical rods are respectively and rotatably connected with a U-shaped rod. The invention relates to the field of greenhouse gas emission sampling equipment, in particular to a sampling device for measuring greenhouse gas emission in a wetland. The invention aims to provide a sampling device for measuring greenhouse gas emission in a wetland, which is convenient for collecting greenhouse gas emission samples.

Inventors

• LIU XINYU
• HAN DONG
• WANG XIN
• YAO ZHENYU
• ZHAO TIANQI
• GUO JIANYING
• YANG FENG
• CHEN YANYAN
• ZHANG ZENGBAO
• DA GULA
• GUO HAIWEI

Assignees

• 水利部牧区水利科学研究所

Dates

Publication Date

20260512

Application Date

20230629

Claims (5)

1. 1. A sampling device for measuring greenhouse gas emissions at a wetland, comprising a power assembly (6), characterized in that: The power assembly (6) comprises a motor (61), an output shaft of the motor (61) is fixedly connected with an L-shaped rod (66), a round rod of the L-shaped rod (66) is arranged in a straight groove (64) of the connecting rod (62), and two ends of the connecting rod (62) are respectively provided with a straight slot (63); Round blocks (65) are respectively arranged in the symmetrical straight-mouth grooves (63), the symmetrical round blocks (65) are respectively and fixedly connected with cross blocks (67), the symmetrical cross blocks (67) are respectively and fixedly connected with hollow rods (611), vertical rods (610) are respectively arranged in the symmetrical hollow rods (611), and the symmetrical vertical rods (610) are respectively and rotatably connected with U-shaped rods (69); The symmetrical U-shaped rods (69) are respectively and fixedly connected with the square-shaped blocks (68), and the symmetrical square-shaped blocks (68) are respectively and fixedly connected with the ground breaking assembly (5); The soil breaking assembly (5) comprises symmetrical first mounting plates (51), the symmetrical first mounting plates (51) are respectively and fixedly connected with a group of connecting rods (52), each connecting rod (52) is respectively and fixedly connected with a second mounting plate (53), the symmetrical second mounting plates (53) are respectively and fixedly connected with soil breaking plates (54), the vertical side edges of the two soil breaking plates (54) are opposite in chamfering direction, one soil breaking plate (54) is fixedly connected with a group of uniformly distributed soil scraping blades (55), and the group of soil scraping blades (55) are sequentially shortened from top to bottom; The installation assembly (1) is further included, the installation assembly (1) comprises a first L plate (11), the first L plate (11) is fixedly connected with a circular ring (12), the first L plate (11) is fixedly connected with a rotating assembly (2), the rotating assembly (2) comprises a rotating motor (23), the first L plate (11) is fixedly connected with the rotating motor (23), an output shaft of the rotating motor (23) penetrates through the first L plate (11) and is fixedly connected with a gear (22), the circular ring (12) is in bearing connection with a gear ring (21), the gear (22) is meshed with the gear ring (21), the gear ring (21) is fixedly connected with a connecting plate (24), the connecting plate (24) is fixedly connected with a vertical plate (25), the vertical plate (25) is fixedly connected with a second L plate (26), the vertical plate (25) is provided with symmetrical cross grooves (27), the vertical plate (25) is fixedly connected with two groups of symmetrical cross bars (28), and each cross bar (28) is fixedly connected with an arc rod (29) respectively; The connecting rod (62) is rotationally connected with the second L-shaped plate (26), the motor (61) is fixedly connected with the vertical plate (25), an output shaft of the motor (61) penetrates through the vertical plate (25), symmetrical cross blocks (67) are respectively arranged in the corresponding cross grooves (27), and symmetrical arc rods (29) respectively penetrate through the corresponding square blocks (68); The collecting assembly (3) is fixedly connected with the circular ring (12), the collecting assembly (3) comprises a support (33), the circular ring (12) is fixedly connected with the support (33), the support (33) is fixedly connected with the electric push rod (32), the push rod end of the electric push rod (32) is fixedly connected with the cover barrel (34), and the cover barrel (34) is fixedly connected with the exhaust pipe (31); Connecting rod (62) fixed connection flattening subassembly (4), flattening subassembly (4) are including symmetrical connection stock (41), connecting rod (62) fixed connection symmetry connect stock (41), symmetry connect stock (41) fixed connection installation pole (42) respectively, symmetry installation pole (42) are a set of evenly distributed's flattening board (43) respectively.
2. 2. The sampling device for greenhouse gas emissions measurement on a wet land according to claim 1, wherein the shroud (34) and the exhaust pipe (31) are made of a waterproof, light-proof, gas-impermeable material.
3. 3. The sampling device for greenhouse gas emissions measurement on a wet land according to claim 1, wherein the ground breaking plate (54) and the scraping blade (55) are made of stainless steel material.
4. 4. The sampling device for greenhouse gas emissions measurement on a wet land according to claim 1, wherein each of the soil scraping blades (55) is fixedly connected with a pressure sensor (56), and when the pressure sensor (56) senses that the resistance of the soil is excessive, the rotating motor (23) is controlled to reciprocate, the soil is broken for a longer time, and the circumferential rotation is continued after the resistance is small.
5. 5. The sampling method of a sampling device for measuring greenhouse gas emissions at a wetland according to claim 1, comprising the steps of: S1, mounting the first L plate (11) on a moving mechanism, wherein the moving mechanism realizes movement along the height direction; s2, controlling the moving mechanism to move downwards and simultaneously controlling the rotating motor (23) and the motor (61) to rotate; S3, the soil scraping edge (55) with the shorter bottom is contacted firstly, the resistance is smaller, along with the descending, the longer soil scraping edge (55) is contacted, when the next soil scraping edge (55) is contacted with soil, one part of the soil scraping edge is broken by the next soil scraping edge (55), the resistance can be well reduced, and meanwhile, the soil scraping edge (55) can follow the alternate motion of the power assembly (6) and is not simply scraped, so that a certain buffer is realized; s4, the vertical side chamfering directions of the two ground breaking plates (54) are opposite, the two plates are combined to be driven by the power assembly (6) to move in a staggered mode, swing along the direction of the arc rod (29) to minimize the resistance of swinging ground breaking, two sides of the ground breaking are alternately cut, the resistance is much smaller than that of only one ground breaking plate (54), the cutting edge tips of the cut cutting edges are positioned in the center of the ground breaking, the chamfering directions of the two sides are opposite, and the alternate bearing pressure is smaller than that of the simple direct cutting in one direction; S5, driving the rotary motor (23), the soil breaking plate (54) and the soil scraping blade (55) to excavate a cylindrical soil column, and S6, controlling the electric push rod (32) to extend to enable the cover barrel (34) to be sleeved with the soil column, enabling the exhaust pipe to be communicated with a gas collecting mechanism, collecting gas for a period of time, sealing and taking down, and checking the displacement.

Description

Sampling device for measuring greenhouse gas emission in wetland Technical Field The invention relates to the field of greenhouse gas emission sampling equipment, in particular to a sampling device for measuring greenhouse gas emission in a wetland. Background In recent years, under the influence and action of various factors such as global climate change, excessive development of water resources, land reclamation, overgrowth of grasslands, overgrazing of the grasslands and the like, the degradation degree of the ecological system of the desert grasslands is increasingly serious, so that a series of ecological environment problems such as river flow break, wetland degradation and the like occur in most rivers in the grasslands, and further, the space-time coupling unbalance of the carbon circulation of the wetlands of the rivers under the driving of multiple factors is caused. The hydrographic environment of the inland river beach wetland changes obviously, but the research on the spatial and temporal distribution and influence mechanism of the CO 2 and CH 4 emission is lacking at present, and particularly the research on the intermittent inland river beach wetland is seriously insufficient. At present, a device is lacking, so that a cylindrical soil column is excavated, and after the soil column is surrounded by a cover barrel and the like, CO 2 and CH 4 emission sampling is carried out. Disclosure of Invention The invention aims to provide a sampling device for measuring greenhouse gas emission in a wetland, which is convenient for collecting greenhouse gas emission samples. The invention adopts the following technical scheme to realize the aim of the invention: A sampling device for measuring greenhouse gas emission in a wetland comprises a power component and is characterized in that the power component comprises a motor, an output shaft of the motor is fixedly connected with an L-shaped rod, round rods of the L-shaped rod are arranged in straight grooves of connecting rods, two ends of each connecting rod are respectively provided with a straight groove, round blocks are respectively and fixedly connected with cross blocks, the cross blocks are respectively and fixedly connected with hollow rods, vertical rods are respectively and symmetrically arranged in the hollow rods, the vertical rods are respectively and rotatably connected with U-shaped rods, the U-shaped rods are respectively and fixedly connected with return blocks, the return blocks are respectively and fixedly connected with a soil breaking component, the soil breaking component comprises first symmetrical mounting plates, each first mounting plate is respectively and fixedly connected with a group of connecting rods, each connecting rod is respectively and fixedly connected with a second mounting plate, the second symmetrical mounting plates are respectively and fixedly connected with a soil breaking plate, the vertical sides of the two soil breaking plates are opposite in direction, one soil breaking plate is respectively and fixedly connected with a group of scraping blades which are uniformly distributed from top to bottom. As a further limitation of this technical scheme, still include the installation component, the installation component includes first L board, first L board fixed connection ring, first L board fixed connection rotating component, rotating component includes the rotating electrical machines, first L board fixed connection the rotating electrical machines, the output shaft of rotating electrical machines passes first L board fixed connection gear, ring bearing connects the ring gear, gear engagement the ring gear, ring gear fixed connection connecting plate, connecting plate fixed connection riser, riser fixed connection second L board, the riser is provided with the cross groove of symmetry, riser fixed connection two sets of symmetries horizontal poles, every the horizontal pole is fixed connection arc pole respectively. As a further limitation of the technical scheme, the connecting rod is rotationally connected with the second L plate, the motor is fixedly connected with the vertical plate, an output shaft of the motor penetrates through the vertical plate, the symmetrical cross blocks are respectively arranged in the corresponding cross grooves, and the symmetrical arc rods respectively penetrate through the corresponding square blocks. As a further limitation of the technical scheme, the circular ring is fixedly connected with the collecting assembly, the collecting assembly comprises a support, the circular ring is fixedly connected with the support, the support is fixedly connected with the electric push rod, the push rod end of the electric push rod is fixedly connected with the cover barrel, and the cover barrel is fixedly connected with the exhaust pipe. As a further limitation of the technical scheme, the connecting rod is fixedly connected with the leveling component, the leveling component comprises symm