Soil carbon process dynamic monitoring simulation device

Abstract

The technical scheme of the utility model provides a soil carbon process dynamic monitoring simulation device which comprises a constant temperature box, a box cover, an extraction valve, a weighing seat, a sample tube, a water replenishing assembly and a controller, and a plurality of compartments are arranged in the constant temperature box; the incubator cover is covered on the incubator; the extraction valves and the compartments are arranged on the box cover in a one-to-one correspondence manner; the weighing seats and the compartments are mounted in the compartments in a one-to-one correspondence manner; the sample tubes are inserted into the weighing seat in a one-to-one correspondence manner, and capillary pore tubes are arranged on the inner sides of the sample tubes along the axis; the water supplementing assembly is installed on the box cover and used for independently supplementing water to all the capillary hole pipes. The controller is electrically connected with the weighing base and the water supplementing assembly. According to the utility model, through the weighing seat, the water replenishing assembly and the controller, water can be replenished in a targeted and controllable manner according to the weight change of a sample contained in the sample tube, and the water can be efficiently and uniformly immersed into a soil layer under the action of the capillary tube on the middle shaft of the sample tube.

Description

Technical Field

[0001] This utility model relates to the technical field of soil research and monitoring tools, and in particular to a dynamic monitoring and simulation device for soil carbon processes. Background Technology

[0002] Returning crop straw to the field is an agricultural practice that refers to returning the remaining crop straw (such as corn and wheat stalks) directly to the field after harvesting through mechanical crushing or natural decomposition. To dynamically monitor the soil carbon process during straw return, it is necessary to simulate the soil carbon process indoors under controlled conditions such as temperature and moisture. For example, Chinese Patent 202420137206.8 discloses an indoor simulation device for dynamic monitoring of soil carbon processes, including a container and a sample tube containing a soil sample placed inside the container. A perforated support is installed inside the container, and water is placed at the bottom of the container below the perforated support. The sample tube is placed vertically on the perforated support.

[0003] In the aforementioned existing technologies, soil water replenishment adopts the natural evaporation method. In a closed space, water evaporates from the surface of the water body and enters the air, forming water vapor. As the air humidity in the closed space gradually increases, the water vapor may condense on the container wall, top, or other cold surfaces and drip back into the soil or water body. This can easily lead to uneven water circulation, affecting the stability of soil moisture, uneven water distribution, and making it difficult to control the water replenishment efficiency and amount. Utility Model Content

[0004] In view of this, it is necessary to provide a dynamic monitoring and simulation device for soil carbon processes to solve the technical problems of uneven water distribution, water replenishment efficiency and water replenishment amount that are not easy to control in the existing technology.

[0005] To achieve the above technical objectives, the present invention provides a dynamic monitoring and simulation device for soil carbon processes, comprising:

[0006] The incubator has multiple compartments inside;

[0007] A lid that fits over the constant temperature chamber;

[0008] The exhaust valves are installed on the cover of the box, corresponding one-to-one with the compartments;

[0009] Weighing stands are installed in the compartments, one for each compartment;

[0010] The sample tubes are inserted one-to-one on the weighing base, and capillary tubes are provided on the inner side along the axis.

[0011] A water replenishment assembly, mounted on the tank cover, is used to independently replenish water to each capillary tube; and

[0012] A controller is electrically connected with the weighing seat and the water supplement assembly, and is configured to control the water supplement assembly according to the sample weight data obtained by the weighing seat.

[0013] Further, the water supplement assembly comprises a water tank, conduits and a valve.

[0014] Further, the bottom of the tank cover is provided with a sealing sleeve corresponding to the compartments.

[0015] Further, the air extraction valve is a three-way valve, and one end of the air extraction valve is provided with an extension pipe.

[0016] Further, the top of the tank cover is provided with a groove corresponding to the air extraction valve.

[0017] Further, the groove is provided with a sealing cover.

[0018] Further, the top of the tank cover is provided with a water inlet, and the water inlet is communicated with the water tank.

[0019] Further, the water inlet is provided with a sealing plug.

[0020] Further, the weighing seat comprises a weighing sensor and a support seat.

[0021] Further, the sample tube and the support seat are provided with a hollow portion, and the hollow portion is provided with a nylon mesh.

[0022] Compared with the prior art, the soil carbon process dynamic monitoring simulation device has the advantages that: the weighing seat, the water supplement assembly and the controller are used to supplement water according to the weight change of the sample in the sample tube, the water can be efficiently and uniformly immersed into the soil layer under the action of the capillary hole pipe on the central axis of the sample tube, and the water supplement is targeted and controllable. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 is a three-dimensional view of the soil carbon process dynamic monitoring simulation device according to an embodiment of the present application;

[0024] Figure 2 is a partial exploded view of the soil carbon process dynamic monitoring simulation device according to an embodiment of the present application;

[0025] Figure 3 is the box cover exploded view of the soil carbon process dynamic monitoring simulation device according to the embodiment of the utility model;

[0026] Figure 4 is the box cover exploded view of the soil carbon process dynamic monitoring simulation device according according to the embodiment of the utility model;

[0027] Figure 5 is the right section view of the soil carbon process dynamic monitoring simulation device according to the embodiment of the utility model;

[0028] Figure 6 is the control block diagram of the soil carbon process dynamic monitoring simulation device according to the embodiment of the utility model;

[0029] In the figure: 1, constant temperature box;101, compartment;2, box cover;201, sealing sleeve;202, recess;203, sealing cover;204, water inlet;205, sealing plug;3, air extraction valve;301, extension pipe;4, weighing seat;41, weighing sensor;42, support seat;5, sample tube;501, capillary hole pipe;6, water replenishing assembly;61, water tank;62, conduit;63, valve;7, controller;8, nylon mesh cloth. DETAILED DESCRIPTION

[0030] The preferred embodiments of the utility model are described in detail below in combination with the drawings, wherein the drawings constitute a part of the present application, and are used together with the embodiments of the utility model to explain the principles of the utility model, and are not used to limit the scope of the utility model.

[0031] As Figures 1-6The utility model provides a kind of soil carbon process dynamic monitoring simulation device, including thermostat 1, box cover 2, air extraction valve 3, weighing seat 4, sample tube 5, water replenishing component 6 and controller 7. Thermostat 1 is provided with multiple compartments 101, the number of compartment 101 is not only limited, and compartment 101 is six in this embodiment, and it is two rows array equidistant arrangement, the top of compartment 101 has open mouth, for putting sample tube 5;Box cover 2 is covered on the thermostat 1, after covering, each compartment 101 is also individually sealed, avoid compartment 101 between air flow, influence the detection data of single sample;Air extraction valve 3 is set on box cover 2 one by one with compartment 101, and each air extraction valve 3 corresponds each compartment 101 respectively, and the carbon dioxide gas generated in compartment 101 is extracted;Weighing seat 4 is installed in compartment 101 one by one with compartment 101, and each compartment 101 is installed with one weighing seat 4, for weighing the weight of sample tube 5, monitors the weight change of sample tube 5;Sample tube 5 is inserted on the weighing seat 4 one by one, and its inside is provided with capillary hole pipe 501 along axis, and sample tube 5 is used to fill in soil sample, wherein, capillary hole pipe 501 is located on the central axis, and it has multiple capillary holes, after filling in water in it, it can evenly supply soil, avoid water replenishing uneven distribution, and the problem that it is difficult to penetrate to deep layer of soil;Water replenishing component 6 is installed on box cover 2, for the independent water replenishing of each capillary hole pipe 501, water is injected into capillary hole pipe 501, and then from capillary hole pipe 501 on capillary hole into soil, reach water replenishing purpose;Controller 7 is electrically connected with the weighing seat 4 and water replenishing component 6, for the water replenishing on-off of water replenishing component 6 according to the sample weight data obtained by weighing seat 4, set a weight value range that needs water replenishing and the weight value range that water replenishing stops, and weighing seat 4 monitors that weight reaches the range, and controller 7 is fed back according to the value of monitoring, and controls water replenishing component 6 to water replenishing to this sample tube 5, and water is injected into capillary hole pipe 501 in it, when weight reaches the weight value range that water replenishing stops in injection, and controller 7 controls water replenishing component 6 to stop water replenishing.

[0032] It can be understood that controller 7 can adopt PLC programmable logic controller, and the start-stop of water replenishing component 6 is controlled according to the weight data monitored by weighing seat 4.

[0033] Further, in order to replenish water conveniently and controllably, the water replenishing assembly 6 comprises a water tank 61, conduits 62 and a valve 63. The water tank 61 is embedded in the tank cover 2 to avoid direct contact with external air, and the tank cover 2 is used to maintain the constant temperature of the water tank 61, so as to avoid the temperature difference between the replenished water and the soil temperature, and affect the monitoring data. The conduits 62 are connected with the water tank 61, penetrate the tank cover 2 downward, and are aligned with the axis of the capillary hole pipe 501 one by one. The valve 63 is arranged at the bottom end of the conduit 62. When the valve 63 is opened, water is caused to drop into the capillary hole pipe 501 along the conduit 62 by gravity.

[0034] It can be understood that when the water replenishing weight reaches, the valve 63 can be closed to interrupt the water replenishing.

[0035] Further, in order to position and weigh the sample tube 5, the weighing seat 4 comprises a weighing sensor 41 and a support seat 42. The weighing sensor 41 is installed on the inner bottom wall of the compartment 101. The support seat 42 is installed on the top of the weighing sensor 41. The sample tube 5 is inserted into the top of the support seat 42. The sample tube 5 is positioned by the support seat 42, and the weight is measured by the weighing sensor 41.

[0036] It can be understood that the valve 63 can be an electromagnetic valve. The electromagnetic valve and the weighing sensor 41 are electrically connected with a PLC programmable logic controller. A conventional control method in the art is adopted. The electromagnetic valve is controlled to open and close according to the monitoring data of the weighing sensor 41, so as to control the water replenishing. The above control method is a conventional technical means in the art, and is a mature control means. Therefore, no more description is made herein.

[0037] Further, in order to seal the compartment 101 when the tank cover 2 is closed, a sealing sleeve 201 is arranged at the bottom of the tank cover 2 corresponding to the compartment 101. The sealing sleeve 201 is pressed on the top of the compartment 101. The top of the compartment 101 is lower than the bottom of the sample tube 5, so as to facilitate the taking of the sample tube 5.

[0038] Further, the air suction valve 3 is a three-way valve. One end of the air suction valve 3 is provided with an extension pipe 301. The extension pipe 301 penetrates the tank cover 2 downward and is inserted into the corresponding compartment 101. The three-way valve is used to switch the passage, close the extension pipe 301, and connect the extension pipe 301 and the air suction syringe.

[0039] Further, in order to avoid large temperature dissipation at the air suction valve 3, a groove 202 is arranged at the top of the tank cover 2 corresponding to the air suction valve 3, for accommodating the air suction valve 3. A sealing cover 203 is inserted into the groove 202 for heat preservation.

[0040] Further, in order to facilitate the injection of water storage, the top of the box cover 2 is provided with a water inlet 204, the water inlet 204 is communicated with the water tank 61, through the water inlet 204 can be injected into the water tank 61.

[0041] Further, the water inlet 204 is inserted with a sealing plug 205 for plugging the water inlet 204.

[0042] Further, in order to improve the soil permeability, the bottom of the sample tube 5 and the support seat 42 is provided with a hollow, the hollow is provided with a nylon mesh cloth 8, the nylon mesh cloth 8 is a fine pore size, avoiding soil falling.

[0043] The specific working process of the utility model: the soil mixed with straw residues and other fertilization materials is loaded into the sample tube 5, and then is inserted into the support seat 42 of the weighing seat 4 one by one, then the box cover 2 is covered, the sealing sleeve 201 is pressed on the top of the compartment 101 one by one, and the sealing is formed; in the soil carbon process, according to the weight of the sample tube 5 monitored by the weighing sensor 41, when the water loss of the soil in one sample tube 5 reaches the weight that needs to be watered, the controller 7 controls the valve 63 on the duct 62 above the sample tube 5 to open, and the capillary hole pipe 501 is watered until the valve 63 is closed; when the gas generated needs to be extracted, the sealing cover 203 is opened, the syringe is connected to the air extraction valve 3, that is, the three-way valve, then the channel is switched, the extension pipe 301 is communicated with the syringe, and then the gas is extracted.

[0044] The whole working process is ended, and the contents not described in detail in the specification all belong to the prior art known to those skilled in the art.

[0045] The above is only a preferred specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any person skilled in the art can easily think of changes or replacements within the technical range disclosed by the utility model, which should be covered in the protection scope of the utility model.

Claims

1. A dynamic monitoring simulation device for soil carbon processes, characterized in that The utility model relates to a constant temperature incubator, which comprises a constant temperature incubator with multiple compartments, a cover for covering the constant temperature incubator, an air extraction valve corresponding to each compartment on the cover, a weighing seat corresponding to each compartment in the compartment, a sample tube corresponding to each weighing seat with a capillary tube on the inner side along the axis, a water supply assembly on the cover for independent water supply to each capillary tube, and a controller electrically connected to the weighing seat and the water supply assembly for controlling the water supply of the water supply assembly according to the sample weight data obtained by the weighing seat. The water supply assembly comprises a water tank, multiple conduits and a valve, the water tank is embedded in the cover, the conduits are connected to the water tank, penetrate through the cover downward and are aligned with the capillary tubes, and the valve is arranged at the bottom end of the conduit. The bottom of the cover is provided with a sealing sleeve corresponding to each compartment, which is pressed on the top of the compartment. The air extraction valve is a three-way valve, one end of which is provided with an extension pipe penetrating through the cover downward and inserted into the corresponding compartment. The top of the cover is provided with a groove corresponding to each air extraction valve for accommodating the air extraction valve. The groove is provided with a sealing cover. The top of the cover is provided with a water inlet communicating with the water tank. The water inlet is provided with a sealing plug.

2. The soil carbon process dynamic monitoring simulation apparatus according to claim 1, characterized in that, The weighing seat comprises a weighing sensor and a support seat, the weighing sensor is installed on the inner bottom wall of the compartment, the support seat is installed on the top of the weighing sensor, and the sample tube is inserted into the top of the support seat.

3. The dynamic monitoring and simulation device of soil carbon processes according to claim 2, characterized in that, The bottom of the sample tube and the support seat is provided with a hollow part, and the hollow part is provided with a nylon mesh.

4. The soil carbon process dynamic monitoring simulation apparatus according to claim 3, characterized by, ​ 5. The soil carbon process dynamic monitoring simulation apparatus according to claim 4, wherein, ​ 6. The soil carbon process dynamic monitoring simulation apparatus according to claim 5, wherein, ​ 7. The dynamic monitoring and simulation device of soil carbon processes according to claim 6, characterized in that, ​ 8. The soil carbon process dynamic monitoring simulation device of claim 7, wherein, ​ 9. The dynamic monitoring and simulation device of soil carbon processes according to claim 8, characterized in that, ​ 10. The soil carbon process dynamic monitoring simulation apparatus according to claim 9, wherein, ​

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