An apparatus for simulating a forest nitrogen deposition environment

Abstract

The utility model relates to forest nitrogen deposition technical field, concretely is a kind of device of simulating forest nitrogen deposition environment, including lifting pipe frame, the bottom of lifting pipe frame is provided with gasification unit, the front of gasification unit is fixedly connected with liquid inlet seat, the both sides of liquid inlet seat are fixedly connected with recovery side frame, the side of lifting pipe frame is fixedly connected with first arc side frame, the other side of lifting pipe frame is fixedly connected with second arc side frame.The utility model is provided with lifting pipe frame, gasification unit, liquid inlet seat, first arc side frame, second arc side frame, contraction rubber cover, butt joint plate, air-distribution inner bag and air-distribution channel, can make the equipment to carry out the simulated forest nitrogen deposition environment test operation around single tree, in actual use process, staff first moves lifting pipe frame whole to the side of tree, then the contraction rubber cover of two sides is respectively pulled out from the inside of the first arc side frame and the second arc side frame of lifting pipe frame two sides.

Description

Technical Field

[0001] This utility model relates to the field of forest nitrogen deposition technology, specifically a device for simulating a forest nitrogen deposition environment. Background Technology

[0002] Atmospheric nitrogen deposition is one of the major global climate change issues. Studies have shown that improper fertilization of farmland, poor management of livestock and poultry manure in farms, coal combustion, and vehicle exhaust emissions all increase the emission of anthropogenic reactive nitrogen into the atmosphere. These gases, as well as the aerosols / fine particulate matter formed through secondary reactions, lead to a decline in air quality or air pollution. At the same time, the quantity and form of reactive nitrogen deposited from the atmosphere into terrestrial and aquatic ecosystems also affect the function and stability of ecosystems.

[0003] For example, patent document CN 209894796 U discloses a device for simulating a forest nitrogen deposition environment, including a frame, spray pipes, and nozzles. The spray pipes are mounted on the frame, and the nozzles are mounted on the spray pipes. The frame is a cubic frame structure, which consists of two inverted U-shaped frames and connecting pipes. The two inverted U-shaped frames are arranged in parallel and connected by the connecting pipes. Each of the two inverted U-shaped frames has a slide rail on its outer side, and the two slide rails are parallel to each other on the two inverted U-shaped frames. Each slide rail has a vertical section and a horizontal section, which are connected by an arc. This utility model changes the pyramidal spray tower to a cubic frame structure. During installation, it can be pre-installed in an open area around the target trees in the test plot, and then transported to the top of the target trees. Since there are no target trees to obstruct the installation, the installation efficiency is greatly improved.

[0004] However, when this structure is used in actual simulated forest nitrogen deposition environments, due to its own structural limitations, it can only adopt open forest nitrogen deposition operations and cannot carry out closed simulated nitrogen deposition operations for individual trees. This results in poor uniformity of the simulated forest nitrogen deposition environment and waste of simulated nitrogen agents, which cannot meet the needs of daily use. Therefore, it is urgent to design a device to simulate forest nitrogen deposition environment to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a device for simulating forest nitrogen deposition environment, in order to solve the problem mentioned in the background art that, when the existing structure is used in actual simulated forest nitrogen deposition environment, it can only adopt open forest nitrogen deposition operation due to its own structural limitations, and cannot carry out closed simulated nitrogen deposition operation for individual trees. This results in poor uniformity of simulated forest nitrogen deposition environment and waste of simulated nitrogen agents, which cannot meet the needs of daily use.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a device for simulating a forest nitrogen deposition environment, comprising a lifting pipe frame, a gasification unit being provided at the bottom end of the lifting pipe frame, a liquid inlet seat being fixedly connected to the front of the gasification unit, and recovery side frames being fixedly connected to both sides of the liquid inlet seat.

[0007] The first arc-shaped side frame and the second arc-shaped side frame are fixedly connected to one side of the lifting pipe frame and the second arc-shaped side frame are fixedly connected to the other side of the lifting pipe frame. Shrinkable rubber covers are provided inside the first arc-shaped side frame and the second arc-shaped side frame.

[0008] Preferably, a mating plate is provided between the two sets of shrink covers, and the shrink covers are adapted to the first arc side frame and the second arc side frame.

[0009] Preferably, the inner wall of the shrinkable cover is provided with a uniform air liner, and the inner wall of the uniform air liner is provided with a uniform air passage.

[0010] Preferably, the inner wall of the recycling side frame is provided with an air suction mesh groove, and the bottom end of the recycling side frame is fixedly connected to a support base.

[0011] Preferably, a fan frame is provided at one end of the recycling side frame, and an air intake fan is provided inside the fan frame.

[0012] Preferably, an exhaust fan is provided at the top of the lifting pipe frame, and an inlet port is provided on the surface of the liquid inlet seat.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This device, simulating a forest nitrogen deposition environment, consists of a lifting frame, a gasification unit, a liquid inlet seat, a first arc-shaped side frame, a second arc-shaped side frame, shrink-fit covers, a connecting plate, a gas-distributing inner liner, and a gas-distributing channel. It allows the equipment to conduct simulated forest nitrogen deposition environment experiments around a single tree. In actual use, the operator first moves the lifting frame to one side of the tree. Then, the shrink-fit covers on both sides are pulled out from inside the first and second arc-shaped side frames on either side of the lifting frame. The connection is then made through the connecting plate at one end of each set of shrink-fit covers. The rapid docking operation involves using a ring structure composed of the first arc side frame, the second arc side frame, and the shrink-fit cover to cover a single tree. Then, the gasification unit at the bottom of the lifting pipe frame is activated, allowing nitrogen agent to be vaporized and sprayed through the liquid inlet seat and its surface inlet interface. The simulated nitrogen deposition gas is then transported upward along the lifting pipe frame and sprayed layer by layer through the gas equalization channel on the inner wall of the shrink-fit cover. This allows the tree to undergo a more uniform and stable nitrogen deposition simulation experiment, demonstrating the practicality of the equipment design.

[0015] This device, simulating a forest nitrogen deposition environment, enhances overall equipment performance through its integrated components: a lifting frame, liquid inlet, recovery side frame, suction mesh trough, support base, fan frame, suction fan, and exhaust fan. During routine use, when nitrogen deposition occurs inside the first arc side frame, second arc side frame, and shrink-fit cover, the suction fan inside the fan frame can be simultaneously activated. This allows the suction fan to draw nitrogen from the ground at the bottom of the device via the recovery side frames on both sides of the liquid inlet. The nitrogen is drawn in through the suction mesh trough of the recovery side frame and then returns to the lifting frame, continuously conducting nitrogen deposition tests inside the first arc side frame, second arc side frame, and shrink-fit cover, thus fully utilizing the nitrogen reagent. Once nitrogen deposition is complete, the exhaust fan at the top of the lifting frame can be activated to expel all test gases through a top-down flow, significantly improving overall equipment efficiency and demonstrating the comprehensiveness of the equipment design. Attached Figure Description

[0016] Figure 1 This is a three-dimensional schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the overall structure of the lifting pipe frame of this utility model;

[0018] Figure 3 This is a schematic diagram of the overall structure of the recycling side frame of this utility model;

[0019] Figure 4 This utility model Figure 1 An enlarged schematic diagram of the structure at point A in the middle.

[0020] In the diagram: 1. Lifting pipe frame; 2. Gasification unit; 3. Liquid inlet seat; 4. Recovery side frame; 5. First arc side frame; 6. Second arc side frame; 7. Shrink cover; 8. Connecting plate; 9. Gas equalization inner liner; 10. Gas equalization channel; 11. Suction mesh channel; 12. Support base; 13. Fan frame; 14. Suction fan; 15. Exhaust fan; 16. Liquid inlet port. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Please see Figure 1-4 One embodiment provided by this utility model:

[0023] A device for simulating a forest nitrogen deposition environment includes a lifting pipe frame 1, a gasification unit 2 at the bottom of the lifting pipe frame 1, a liquid inlet seat 3 fixedly connected to the front of the gasification unit 2, recovery side frames 4 fixedly connected to both sides of the liquid inlet seat 3, an air suction mesh groove 11 provided on the inner wall of the recovery side frame 4, a support base 12 fixedly connected to the bottom of the recovery side frame 4, a fan frame 13 at one end of the recovery side frame 4, an air suction fan 14 provided inside the fan frame 13, an exhaust fan 15 provided at the top of the lifting pipe frame 1, and a liquid inlet port 16 opened on the surface of the liquid inlet seat 3.

[0024] The first arc side frame 5 and the second arc side frame 6 are fixedly connected to one side of the lifting pipe frame 1 and the second arc side frame 6 are fixedly connected to the other side of the lifting pipe frame 1. The first arc side frame 5 and the second arc side frame 6 are provided with shrinkable rubber covers 7 inside. A connecting plate 8 is provided between the two sets of shrinkable rubber covers 7. The shrinkable rubber covers 7 are adapted to the first arc side frame 5 and the second arc side frame 6. The inner wall of the shrinkable rubber cover 7 is provided with a uniform air liner 9. The inner wall of the uniform air liner 9 is provided with a uniform air passage 10.

[0025] Working Principle: During operation, the operator first moves the entire lifting frame 1 to one side of the tree. Then, the shrink-fit covers 7 on both sides are pulled out from inside the first arc-shaped side frame 5 and the second arc-shaped side frame 6 on both sides of the lifting frame 1. A quick docking operation is then performed using the docking plates 8 at one end of the two sets of shrink-fit covers 7. The ring structure formed by the first arc-shaped side frame 5, the second arc-shaped side frame 6, and the shrink-fit covers 7 covers the tree. Next, the gasification unit 2 at the bottom of the lifting frame 1 is activated, allowing nitrogen spraying through the liquid inlet seat 3 and its surface liquid inlet interface 16. The simulated nitrogen deposition gas rises along the lifting frame 1 and is evenly sprayed layer by layer through the gas equalization channels 10 on the gas equalization liner 9 inside the shrink-fit covers 7, resulting in more uniform and stable nitrogen deposition on the tree. In the simulation experiment, during daily use, when nitrogen precipitation occurs inside the first arc side frame 5, the second arc side frame 6, and the shrink sleeve 7, the suction fan 14 inside the fan frame 13 can be started simultaneously. This allows the suction fan to draw nitrogen from the ground at the bottom of the equipment through the recovery side frames 4 on both sides of the liquid inlet seat 3. The nitrogen is drawn in from the suction mesh groove 11 of the recovery side frame 4 and then returns to the inside of the lifting pipe frame 1, continuously performing nitrogen precipitation tests inside the first arc side frame 5, the second arc side frame 6, and the shrink sleeve 7, thus more fully utilizing the nitrogen reagent. After nitrogen precipitation is completed, the exhaust fan 15 at the top of the lifting pipe frame 1 can be started directly to discharge all the test gas through the top flow, greatly improving the overall efficiency of the equipment. The above is the complete working principle of this utility model.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A device for simulating a forest nitrogen deposition environment, comprising a lifting frame (1), characterized in that: The bottom end of the lifting pipe frame (1) is provided with a gasification unit (2), the front of the gasification unit (2) is fixedly connected with a liquid inlet seat (3), and the two sides of the liquid inlet seat (3) are fixedly connected with recovery side frames (4). The first arc side frame (5) and the second arc side frame (6) are fixedly connected to one side of the lifting pipe frame (1) and the second arc side frame (6) is fixedly connected to the other side of the lifting pipe frame (1). Shrinkable covers (7) are provided inside the first arc side frame (5) and the second arc side frame (6).

2. The device for simulating a forest nitrogen deposition environment according to claim 1, characterized in that: A mating plate (8) is provided between the two sets of shrink covers (7), and the shrink covers (7) are adapted to the first arc side frame (5) and the second arc side frame (6).

3. The device for simulating a forest nitrogen deposition environment according to claim 1, characterized in that: The inner wall of the shrinkable cover (7) is provided with a uniform air liner (9), and the inner wall of the uniform air liner (9) is provided with a uniform air passage (10).

4. The device for simulating a forest nitrogen deposition environment according to claim 1, characterized in that: The inner wall of the recycling side frame (4) is provided with an air suction mesh groove (11), and the bottom end of the recycling side frame (4) is fixedly connected to a support base (12).

5. The device for simulating a forest nitrogen deposition environment according to claim 1, characterized in that: One end of the recycling side frame (4) is provided with a fan frame (13), and an air intake fan (14) is provided inside the fan frame (13).

6. The device for simulating a forest nitrogen deposition environment according to claim 1, characterized in that: The top of the lifting pipe frame (1) is equipped with an exhaust fan (15), and the surface of the liquid inlet seat (3) is provided with a liquid inlet interface (16).

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