CN212693377U

CN212693377U - Improved device for collecting soil carbon dioxide

Info

Publication number: CN212693377U
Application number: CN202021108913.2U
Authority: CN
Inventors: 陈帅君; 边嘉宾; 周鑫伟
Original assignee: Tianjin Agricultural University
Current assignee: Tianjin Agricultural University
Priority date: 2020-06-16
Filing date: 2020-06-16
Publication date: 2021-03-12
Anticipated expiration: 2030-06-16

Abstract

The utility model relates to the technical field of soil carbon dioxide determination, in particular to an improved device for collecting soil carbon dioxide, which comprises a collecting barrel body with a bottomless structure, wherein the collecting barrel body is arranged on soil through a sealing device, a plurality of automatic air exhaust devices for extracting gas in the collecting barrel body for a plurality of times are arranged in the collecting barrel body, and the automatic air exhaust devices are connected with a gas storage device; the utility model discloses the collection staving internally mounted of equipment has a plurality of automatic air exhaust device that are used for extracting the internal gas of collection staving many times, and automatic air exhaust device is connected with gaseous storage device, can bleed automatically and save gas, has reduced workman's work load, and built-in gaseous storage device makes the workman no longer need hand-carry the receiving flask, has reduced workman's carrying volume and heavy burden.

Description

Improved device for collecting soil carbon dioxide

Technical Field

The utility model relates to a soil carbon dioxide surveys technical field, concretely relates to collect soil carbon dioxide's improvement device.

Background

The emission and the measurement of carbon dioxide are hot spots and difficulties in the field of climate change, and the collection mode of the existing soil carbon dioxide collection device is as follows: placing a collecting barrel with a bottomless structure on soil at a designated position near a plant, extracting gas in the barrel by using an injector four times a day at different time periods, releasing the gas in a collecting device (a collecting bottle, a collecting tank and the like), and bringing the gas back to a laboratory for detection;

however, the following problems have been found by long-term use: firstly, because the collecting barrel is placed in the field, workers need to go to the field for multiple times at different time intervals every day to extract gas in the barrel body by using the injector, and then inject the extracted gas into the collecting device, the workload is large, the load is heavy, the temperature in the field is high, the workers need to carry the collecting device with them every time, and the workers are easy to heatstroke; secondly, because the collecting barrel with a bottomless structure is placed on the soil, but the soil surface is not flat, a gap exists between the contact surface of the collecting barrel and the soil sometimes, and external air can enter the collecting barrel to influence the accuracy of collected data.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a collect soil carbon dioxide's improvement device solves above-mentioned problem.

The utility model provides an improve device of collection soil carbon dioxide, includes the collection staving of no bottom structure, the collection staving is installed on soil through a sealing device, collection staving internally mounted has the automatic air exhaust device who is used for extracting the internal gas of collection staving many times, automatic air exhaust device is connected with built-in gaseous storage device.

Preferably, the sealing device comprises an annular mounting frame, and the annular blade is fixedly connected to the bottom of the annular mounting frame.

Preferably, the bottom of the collection barrel body is provided with an annular convex block, the annular mounting frame is provided with an annular groove matched with the annular convex block at the bottom of the collection barrel body, one side of the annular groove is connected with a water supply pipe, and one end of the water supply pipe is connected with a water supply device.

Preferably, the automatic air-extracting device comprises a micro air-extracting pump, and the micro air-extracting pump is connected with the gas storage device through a hose.

Preferably, the gas storage device is a vacuum gas storage bag with an air inlet provided with a reverse gas valve.

Preferably, a partition plate is fixedly installed in the collection barrel body, the collection barrel body is divided into a double-layer structure by the partition plate, the vacuum gas storage bag is placed on the partition plate, and the micro air pump is installed on the other surface of the partition plate; the hose penetrates through the partition plate, and the joint of the hose and the partition plate is sealed by gluing.

Preferably, the collecting barrel further comprises a collecting barrel cover, a fixing device used for fixing the collecting barrel cover on the collecting barrel body is installed on the collecting barrel cover, the fixing device comprises a plurality of lock boxes installed on the inner side of the collecting barrel cover, openings are formed in two ends of each lock box, and abutting blocks are fixedly connected to the inner wall of each lock box; a strip-shaped fixture block is installed in the lock box, two sides of the end part of the strip-shaped fixture block are fixedly connected with a stop block, a spring is sleeved outside the strip-shaped fixture block, one end of the spring is abutted against the stop block, the other end of the spring is abutted against the abutting block, a stop block for preventing the fixture block from falling off is further fixedly installed on the inner wall of the lock box, and one end of the stop block is abutted against the stop block; one end of the clamping block is connected with a steel rope, and one end of the steel rope is connected with an opening device for controlling the clamping block to move.

Preferably, the opening device comprises a diamond plate and a rotating shaft, the diamond plate is connected with the steel rope, and the diamond plate is fixedly connected with the end part of the rotating shaft; the collecting barrel cover is provided with a mounting hole, a bearing is fixedly mounted in the mounting hole, and the rotating shaft penetrates through the bearing; still include and prevent first stationary blade and the second stationary blade that the pivot drops, first stationary blade is in with the fixed suit of second stationary blade in the pivot, first stationary blade is contradicted collect the upper surface of bung, the second stationary blade is contradicted collect the lower surface of bung.

Preferably, the collecting barrel further comprises a pulley, the pulley is rotatably mounted on the collecting barrel cover, after the steel rope surrounds the pulley, one end of the steel rope is fixedly connected with the clamping block, and the other end of the steel rope is fixedly connected with the rhombic plate.

Preferably, a clamping groove matched with the clamping block is formed in the inner wall of the collecting barrel body.

Compared with the prior art, the utility model discloses the beneficial effect of equipment is:

1. the utility model discloses the collection staving of equipment is installed in soil through a sealing device, and there is the gap in the contact surface of having avoided collecting staving and soil, and inside the outside gas got into the collection staving, the accuracy of data was collected in the influence.

2. The utility model discloses the collection staving internally mounted of equipment has a plurality of automatic air exhaust device that are used for extracting the internal gas of collection staving many times, and automatic air exhaust device is connected with gaseous storage device, can bleed automatically and save gas, has reduced workman's work load, and built-in gaseous storage device makes the workman no longer need hand-carry the receiving flask, has reduced workman's carrying volume and heavy burden.

Drawings

Fig. 1 is a schematic structural diagram of an improved device for collecting soil carbon dioxide in the embodiment.

Fig. 2 is an exploded view I of an improved apparatus for collecting soil carbon dioxide in this embodiment.

Fig. 3 is an exploded view II of an improved apparatus for collecting soil carbon dioxide in this embodiment.

Fig. 4 is a schematic structural diagram I of a collection barrel cover of the improved device for collecting soil carbon dioxide in the embodiment.

Fig. 5 is a schematic structural diagram II of a collection barrel cover of the improved device for collecting soil carbon dioxide in the embodiment.

FIG. 6 is a sectional view of an improved apparatus for capturing carbon dioxide from soil in this embodiment.

FIG. 7 is a schematic structural view of a rotating shaft for collecting carbon dioxide in soil according to the present embodiment.

In the drawings: the device comprises a collecting barrel body 1, an annular convex block 1-1, an annular groove 1-2, a water supply pipe 1-3, an annular mounting rack 2, an annular blade 3, a water supply device 4, a miniature air pump 5, a partition plate 6, a collecting barrel cover 7, a lock box 7-1, a butting block 7-2, a strip-shaped fixture block 7-3, a stop block 7-4, a spring 7-5, a steel rope 7-6, a stop block 7-7, a diamond plate 7-8, a rotating shaft 7-9, a bearing 7-10, a first fixing plate 7-11, a second fixing plate 7-12 and a pulley 7-13.

Detailed Description

In the following, the technical solutions in the embodiments of the present invention will be clearly and completely described with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When a component is referred to as being "connected" to another component, it can be directly connected to the other component or intervening components may also be present. When a component is referred to as being "disposed on" another component, it can be directly on the other component or intervening components may also be present. The terms "vertical," "horizontal," "left," "right," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

An improved device for collecting soil carbon dioxide comprises a collecting barrel body 1 with a bottomless structure, wherein the collecting barrel body 1 is installed on soil through a sealing device, a plurality of automatic air extracting devices used for extracting gas in the collecting barrel body 1 for multiple times are installed inside the collecting barrel body 1, and the automatic air extracting devices are connected with a built-in gas storage device;

the existing collection device needs workers to manually use an injector to extract gas in a barrel body in different time periods, then the gas is injected into the collection device (a collection bottle, a collection tank and the like) by using the injector and is brought back to a laboratory for detection; the workload of workers is large, the collection device is carried with the workers each time, the load is large, a gap exists between the contact surface of the collection barrel and soil, and the sealing property is poor; therefore the utility model discloses equipment is provided with sealing device, and sealing device installs completely on soil, collects staving 1 and installs on sealing device, and there is the gap to cause outside gas to get into, influence detection effect in the contact surface that prevents to collect staving 1 and soil.

The sealing device comprises an annular mounting frame 2, and an annular blade 3 is fixedly connected to the bottom of the annular mounting frame 2; when the annular mounting frame 2 is installed, the annular blade 3 is pressed into soil, and because the annular blade 3 is pricked into the soil, no gap exists between the annular blade 3 and the contact surface of the soil, so that the external gas is prevented from entering the collection barrel body 1 through the joint of the annular blade 3 and the soil.

The bottom of the collecting barrel body 1 is provided with an annular convex block 1-1, the annular mounting frame 2 is provided with an annular groove 1-2 matched with the annular convex block 1-1 at the bottom of the collecting barrel body 1, one side of the annular groove 1-2 is connected with a water supply pipe 1-3, and one end of the water supply pipe 1-3 is connected with a water supply device 4; when the device is used, the collecting barrel body 1 is arranged on the annular mounting frame 2, the annular convex block 1-1 is clamped in the annular groove 1-2 to play a role in initially isolating external gas from entering the barrel body 1, water is injected into the annular groove 1-2 through the water supply device 4 to seal a gap between the annular convex block 1-1 and the annular groove 1-2 with water, and a role in secondarily isolating external gas from entering the barrel body 1 is played; in this embodiment, the water supply device 4 is a water tank, and a water supply valve is installed at the connection between the water tank and the water supply pipes 1 to 3.

The automatic air extraction device comprises a micro air extraction pump 5, and the micro air extraction pump 5 is connected with the gas storage device through a hose; in the embodiment, considering that the worker collects the gas four times in different time intervals within 12 hours, four micro air pumps 5 and four gas storage devices corresponding to the four micro air pumps 5 are arranged, and the collection time interval is 3 hours; the device also comprises a controller, a timer, a thermometer, a display and a storage, wherein the controller is electrically connected with the timer, the micro air pump 5, the thermometer, the storage and the display; when the timer reaches the time set for the first time, the controller controls the micro air pump I to be started, the micro air pump I pumps the gas in the collection barrel body 1 to the gas storage device I at the time, the storage device records the temperature and the number of the storage device I at the time and displays the temperature and the number of the storage device I through the display, when the timer reaches the time set for the second time, the controller controls the micro air pump II to be started, the micro air pump II pumps the gas in the collection barrel body 1 to the gas storage device II at the time, the storage device records the temperature and the number of the storage device II at the time, and when the timer reaches the time set for the third time and the fourth time, the controller starts the corresponding micro air pumps 5 in sequence according to the operation steps.

The gas storage device is a vacuum gas storage bag with a reverse gas valve at the gas inlet, and since the equipment needs to collect all the four times, workers collect all the vacuum gas storage bags again, the vacuum gas storage bags need to be placed in the collection barrel body 1 for a long time, the micro air pump 5 is closed after the collection amount is completed, and the reverse gas valve can prevent gas pumped into the vacuum gas storage bags from leaking from the gas inlet.

A partition plate 6 is fixedly arranged in the collection barrel body 1, the collection barrel body 1 is divided into a double-layer structure by the partition plate 6, the vacuum gas storage bag is arranged on the partition plate 6, and the micro air suction pump 5 is arranged on the other surface of the partition plate 6; the hose penetrates through the dividing plate 6, and the joint of the hose and the dividing plate 6 is sealed by gluing;

the upper layer of the collecting barrel body 1 can be used for placing vacuum gas storage bags, a worker does not need to carry collecting devices such as a gas collecting bottle at every time, a sealed cavity is still formed between the lower layer of the collecting barrel body 1 and soil, the micro air pump 5 collects gas and then discharges the gas into the vacuum gas storage bag on the upper layer of the collecting barrel body 1 through a hose, and the joint of the hose and the partition plate 6 is glued and sealed to avoid gas leakage in the sealed cavity formed between the lower layer of the collecting barrel body 1 and the soil.

The collecting barrel is characterized by further comprising a collecting barrel cover 7, wherein a fixing device for fixing the collecting barrel cover 7 on the collecting barrel body 1 is arranged on the collecting barrel cover 7, the fixing device comprises a plurality of lock boxes 7-1 arranged on the inner side of the collecting barrel cover 7, openings are formed in two ends of each lock box 7-1, and abutting blocks 7-2 are fixedly connected to the inner wall of each lock box 7-1; a bar-shaped fixture block 7-3 is installed in the lock box 7-1, two sides of the end portion of the bar-shaped fixture block 7-3 are fixedly connected with a stop dog 7-4, a spring 7-5 is sleeved outside the bar-shaped fixture block 7-3, one end of the spring 7-5 abuts against the stop dog 7-4, the other end of the spring 7-5 abuts against the abutting block 7-2, one end of the fixture block 7-3 is connected with a steel rope 7-6, and one end of the steel rope 7-6 is connected with an opening device for controlling the fixture block 7-3 to move; in the embodiment, the inner wall of the lock box 7-1 is also fixedly provided with a stop block 7-7 for preventing the fixture block 7-3 from falling off, one end of the stop block 7-4 is abutted against the stop block 7-7,

the opening device comprises a diamond plate 7-8 and a rotating shaft 7-9, the diamond plate 7-8 is connected with the steel rope 7-6, and the diamond plate 7-8 is fixedly connected with the end part of the rotating shaft 7-9; a mounting hole is formed in the collecting barrel cover 7, a bearing 7-10 is fixedly mounted in the mounting hole, and the rotating shaft 7-9 penetrates through the bearing 7-10; the rotating shaft is characterized by further comprising a first fixing piece 7-11 and a second fixing piece 7-12 which are used for preventing the rotating shaft 7-9 from falling off, wherein the first fixing piece 7-11 and the second fixing piece 7-12 are fixedly sleeved on the rotating shaft 7-9, the first fixing piece 7-11 is abutted against the upper surface of the collecting barrel cover 7, and the second fixing piece 7-12 is abutted against the lower surface of the collecting barrel cover 7;

in the embodiment, a rope ring I is arranged on the diamond plate 7-8, a rope ring II is arranged at the bottom end of the clamping block 7-3, one end of the steel rope 7-6 is connected with the rope ring I, and one end of the steel rope 7-6 is connected with the rope ring II.

The pulley 7-13 is rotatably arranged on the collection barrel cover 7, the steel rope 7-6 surrounds the pulley 7-13, one end of the steel rope is fixedly connected with the clamping block 7-3, and the other end of the steel rope is fixedly connected with the rhombic plate 7-8;

in this embodiment, the pulleys 7 to 13 are rotatably installed on the rotating shaft II, one end of the rotating shaft II is fixedly installed with a blocking piece for preventing the pulleys 7 to 13 from falling off, and the other end of the rotating shaft II is fixedly installed on the collecting barrel cover 7.

The inner wall of the collection barrel body 1 is provided with clamping grooves 1-4 matched with the clamping blocks 7-3, when the rotating shaft 7-9 is rotated, the rotating shaft 7-9 drives the rhombic plates 7-8 to rotate, the rhombic plates 7-8 pull the steel ropes 7-6, the steel ropes 7-6 pull the clamping blocks 7-3, the clamping blocks 7-3 compress the springs 7-5 and then retract into the lock box 7-1, after the collection barrel cover 7 is buckled on the collection barrel body 1, the rotating shaft 7-9 is rotated reversely, the springs 7-5 expand again, the clamping blocks 7-3 are ejected out under the action of the springs 7-5 and enter the clamping grooves 1-4 in the inner wall of the collection barrel body, and the collection barrel cover 7 is fixed on the collection barrel body 1.

The working principle is as follows:

when the device is installed, the annular blade 3 is pressed into soil, and because the annular blade 3 is pricked into the soil, no gap exists on the contact surface of the annular blade 3 and the soil, so that external air is prevented from entering the collection barrel body 1 through the joint of the annular blade 3 and the soil; then, the collecting barrel body 1 is arranged on the annular mounting frame 2, the annular convex block 1-1 is clamped in the annular groove 1-2 to play a role in initially isolating external gas from entering the barrel body 1, water is injected into the annular groove 1-2 through the water supply device 4 to carry out water sealing on a gap between the annular convex block 1-1 and the annular groove 1-2, and a role in secondarily isolating external gas from entering the barrel body 1 is played;

when gas is collected, four micro air pumps 5 and four gas storage devices corresponding to the four micro air pumps 5 are arranged, and the collection time interval is 3 hours; the device also comprises a controller, a timer, a thermometer, a display and a storage, wherein the controller is electrically connected with the timer, the micro air pump 5, the thermometer, the storage and the display; when the timer reaches the time set for the first time, the controller controls the micro air pump I to be started, the micro air pump I pumps the gas in the collection barrel body 1 to the gas storage device I at the time, the storage device records the temperature and the number of the storage device I at the time and displays the temperature and the number of the storage device I through the display, when the timer reaches the time set for the second time, the controller controls the micro air pump II to be started, the micro air pump II pumps the gas in the collection barrel body 1 to the gas storage device II at the time, the storage device records the temperature and the number of the storage device II at the time, and when the timer reaches the time set for the third time and the fourth time, the controller starts the corresponding micro air pumps 5 in sequence according to the operation steps.

When the set time is reached, the worker opens the vacuum storage bag and takes out the four vacuum storage bags from the collection barrel body 1.

The above description is for the detailed description of the preferred possible embodiments of the present invention, but the embodiments are not intended to limit the scope of the present invention, and all equivalent changes or modifications accomplished under the technical spirit suggested by the present invention should fall within the scope of the present invention.

Claims

1. An improved device for collecting carbon dioxide from soil, characterized in that: the device comprises a collection barrel body (1) with a bottomless structure, wherein the collection barrel body (1) is installed on soil through a sealing device, an automatic air extractor used for extracting gas in the collection barrel body (1) for multiple times is installed inside the collection barrel body (1), and the automatic air extractor is connected with a built-in gas storage device.

2. The improved apparatus for capturing carbon dioxide from soil as recited in claim 1, wherein: the sealing device comprises an annular mounting frame (2), and an annular blade (3) is fixedly connected to the bottom of the annular mounting frame (2).

3. The improvement of claim 2, wherein: the bottom of the collecting barrel body (1) is provided with an annular convex block (1-1), the annular mounting frame (2) is provided with an annular groove (1-2) matched with the annular convex block (1-1) at the bottom of the collecting barrel body (1), one side of the annular groove (1-2) is connected with a water supply pipe (1-3), and one end of the water supply pipe (1-3) is connected with a water supply device (4).

4. An improved device for collecting carbon dioxide from soil as claimed in claim 3, wherein: the automatic air extraction device comprises a micro air extraction pump (5), and the micro air extraction pump (5) is connected with the gas storage device through a hose.

5. The improvement of claim 4 wherein: the gas storage device is a vacuum gas storage bag with a reverse gas valve at a gas inlet.

6. The improvement of claim 5 wherein: a partition plate (6) is fixedly installed in the collection barrel body (1), the collection barrel body (1) is divided into a double-layer structure by the partition plate (6), the vacuum gas storage bag is placed on the partition plate (6), and the micro air pump (5) is installed on the other surface of the partition plate (6); the hose penetrates through the dividing plate (6), and the joint of the hose and the dividing plate (6) is sealed by gluing.

7. The improved apparatus for capturing carbon dioxide from soil as recited in claim 1, wherein: the collecting barrel is characterized by further comprising a collecting barrel cover (7), wherein a fixing device used for fixing the collecting barrel cover (7) on the collecting barrel body (1) is installed on the collecting barrel cover (7), the fixing device comprises a plurality of lock boxes (7-1) installed on the inner side of the collecting barrel cover (7), openings are formed in two ends of each lock box (7-1), and a supporting block (7-2) is fixedly connected to the inner wall of each lock box (7-1); a bar-shaped clamping block (7-3) is installed in the lock box (7-1), two sides of the end portion of the bar-shaped clamping block (7-3) are fixedly connected with check blocks (7-4), a spring (7-5) is sleeved outside the bar-shaped clamping block (7-3), one end of the spring (7-5) abuts against the check blocks (7-4), the other end of the spring (7-5) abuts against the abutting block (7-2), a blocking block (7-7) for preventing the clamping block (7-3) from falling off is further fixedly installed on the inner wall of the lock box (7-1), and one end of the check block (7-4) abuts against the blocking block (7-7);

one end of the clamping block (7-3) is connected with a steel rope (7-6), and one end of the steel rope (7-6) is connected with an opening device for controlling the clamping block (7-3) to move.

8. The improvement of claim 7 wherein: the opening device comprises a diamond plate (7-8) and a rotating shaft (7-9), the diamond plate (7-8) is connected with the steel rope (7-6), and the diamond plate (7-8) is fixedly connected with the end part of the rotating shaft (7-9); a mounting hole is formed in the collecting barrel cover (7), a bearing (7-10) is fixedly mounted in the mounting hole, and the rotating shaft (7-9) penetrates through the bearing (7-10); the novel collecting barrel is characterized by further comprising a first fixing piece (7-11) and a second fixing piece (7-12) which are used for preventing the rotating shaft (7-9) from falling off, wherein the first fixing piece (7-11) and the second fixing piece (7-12) are fixedly sleeved on the rotating shaft (7-9), the first fixing piece (7-11) is abutted to the upper surface of the collecting barrel cover (7), and the second fixing piece (7-12) is abutted to the lower surface of the collecting barrel cover (7).

9. The improvement of claim 8 wherein: the collecting barrel is characterized by further comprising pulleys (7-13), the pulleys (7-13) are rotatably mounted on the collecting barrel cover (7), one end of the steel rope (7-6) is fixedly connected with the clamping block (7-3) after the steel rope (7-6) surrounds the pulleys (7-13), and the other end of the steel rope is fixedly connected with the rhombic plate (7-8).

10. The improvement of claim 9, wherein: and the inner wall of the collecting barrel body (1) is provided with a clamping groove (1-4) matched with the clamping block (7-3).