Air heating control experimental system

Abstract

The present invention relates to the field of atmospheric environment research, specifically, an air temperature increase control experimental system, comprising an open top box, a heating device and an adjustment mechanism, wherein the adjustment mechanism is arranged in the open top box, the heating device is installed on the corresponding adjustment mechanism, the adjustment mechanism comprises a lifting mechanism and an angle adjustment mechanism, wherein the lifting mechanism is provided with a lifting screw sleeve, a support rod is provided on one side of the lifting screw sleeve, a rotatable swing rod is provided on the support rod, and a reset torsion spring is provided on the swing rod rotating shaft, the heating device is installed on the lower end of the swing rod, the angle adjustment mechanism comprises a rotating motor, a wire rope drum, a wire rope and a pulley, the wire rope drum is driven to rotate by the rotating motor, the pulley is arranged on the lifting screw sleeve, the wire rope is wound on the wire rope drum, and one end extends upward and passes around the pulley and is connected to the upper end of the swing rod. The present invention uses an open top box to conduct air temperature increase experiments, avoiding the influence of natural wind force, etc., and the heating device can be automatically adjusted to ensure the continuity of the experiment.

Description

Technical Field

[0001] The invention relates to the field of atmospheric environment research, in particular to an air temperature increase control experimental system. Background Art

[0002] In response to global warming, simulating the impact of atmospheric warming on terrestrial plants has become a hot topic and frontier in ecological research. In the past, atmospheric warming was mostly done by directly heating the canopy of grassland plants with infrared radiation, which was greatly affected by natural wind and had poor warming efficiency. In addition, the heating device could not automatically adjust the height and angle during the experiment, and generally required manual adjustment by manually tightening the corresponding bolts. This required lowering the temperature of the heating device or turning off the heating device to avoid burns to the operators, affecting the continuity of the simulation experiment. Summary of the invention

[0003] The purpose of the present invention is to provide an air heating control experimental system, which uses an open top box to conduct air heating experiments, avoids the influence of natural wind and the like, and can realize automatic adjustment of the heating device. The operation is simple and convenient, effectively ensures the safety of the experimenters, and avoids destroying the continuity of the experiment.

[0004] The objective of the present invention is achieved through the following technical solutions:

[0005] An air heating control experimental system comprises an open-top box, a heating device and an adjustment mechanism, wherein the adjustment mechanism is arranged in the open-top box, and the heating device is installed on the corresponding adjustment mechanism, and the adjustment mechanism comprises a lifting mechanism and an angle adjustment mechanism, wherein the lifting mechanism is provided with a lifting screw sleeve, and a support rod is provided on one side of the lifting screw sleeve, and a rotatable rocker arm is provided on the support rod, and a reset torsion spring is provided on the rocker arm rotating shaft, and the heating device is installed on the lower end of the rocker arm, and the angle adjustment mechanism comprises a rotating motor, a wire rope drum, a wire rope and a pulley, the wire rope drum is driven to rotate by the rotating motor, the pulley is arranged on the lifting screw sleeve, the wire rope is wound on the wire rope drum, and one end extends upward and passes around the pulley and is connected to the upper end of the rocker arm.

[0006] The lifting mechanism includes a lifting motor, a lifting transmission assembly, a screw and a lifting screw sleeve. A base plate is provided at the lower end of the adjustment mechanism, a screw seat is provided on the upper side of the base plate, the lower end of the screw is inserted into the screw seat, and the screw is driven to rotate by the lifting motor. The lifting motor transmits torque through the lifting transmission assembly, and the lifting screw sleeve is sleeved on the screw.

[0007] The lifting transmission assembly comprises a meshing driving gear and a driven gear, wherein the driving gear is mounted on the output shaft of the lifting motor, and the driven gear is mounted on the screw rod.

[0008] When the lifting screw sleeve rises, the rotary motor rotates to release the wire rope, and when the lifting screw sleeve descends, the rotary motor rotates to reel in the wire rope.

[0009] A limit block is arranged at the upper end of the screw rod, and a rain shield is installed on the limit block.

[0010] A temperature sensor is arranged inside the open top box, a control box is arranged outside the open top box, and the heating device, the temperature sensor, the lifting motor and the rotating motor are respectively connected to the control box through lines.

[0011] The control box is provided with a display screen with an operation interface.

[0012] The upper end of the open top box is provided with a first fan, and the lower end is provided with a second fan.

[0013] A door is provided on one side of the open top box.

[0014] The adjustment mechanisms are evenly distributed in the open top box along the circumferential direction.

[0015] The advantages and positive effects of the present invention are:

[0016] 1. The present invention uses an open-top box to conduct air heating experiments, so that tree seedlings or low herbaceous plants are in a relatively shielded and not completely closed (top open) environment, effectively reducing the impact of natural wind on the experiment, and multiple heating devices are evenly distributed in the box along the circumferential direction, greatly improving the heating efficiency.

[0017] 2. The present invention can automatically adjust the height and angle of the heating device, and the operation can be completed through the display screen with an operation interface on the control box. The operation is simple and convenient, effectively ensuring the safety of the experimenters and avoiding disruption of the continuity of the experiment.

[0018] 3. The present invention provides a temperature sensor in the open top box for real-time monitoring of the temperature in the box, thereby ensuring the smooth progress of the experiment and accurately controlling the temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention,

[0020] Figure 2 for Figure 1 Schematic diagram of the adjustment mechanism in

[0021] Figure 3 for Figure 1 Top view of the center open top box.

[0022] Among them, 1 is an open top box, 2 is an adjustment mechanism, 3 is a first fan, 4 is a second fan, 5 is a control box, 6 is an open door, 7 is a rain shield, 8 is a heating device, 9 is a lifting screw sleeve, 10 is a pulley, 11 is a wire rope, 12 is a screw, 13 is a driven gear, 14 is a screw seat, 15 is a bearing, 16 is a rotating motor, 17 is a wire rope drum, 18 is an anchor bolt, 19 is a base plate, 20 is a support frame, 21 is a lifting motor, 22 is a driving gear, 23 is a rocker arm, 24 is a support rod, 25 is a limit block, and 26 is a protective cover. DETAILED DESCRIPTION

[0023] The present invention will be further described below in conjunction with the accompanying drawings.

[0024] like Figures 1 to 3 As shown, the present invention includes an open-top box 1, a heating device 8 and an adjustment mechanism 2. The adjustment mechanism 2 is evenly distributed in the open-top box 1 along the circumferential direction, and the heating device 8 is installed on the corresponding adjustment mechanism 2. In this embodiment, the open-top box 1 is a plastic steel structure, 8mm thick transparent glass is installed on the 6 sides, the top is completely open, and the box body is 2.5 meters high. The entire open-top box 1 is fixed to a regular hexagonal cement concrete foundation with expansion screws. Tree seedlings or low herbaceous plants are placed in the open-top box 1, so that the tree seedlings or low herbaceous plants are in a relatively shielded and not completely closed (top open) environment to reduce the impact of natural wind on the experiment. Figure 3 As shown, in this embodiment, three adjustment mechanisms 2 and three heating devices 8 are provided, and the angle between adjacent heating devices 8 is 120°.

[0025] like Figure 2 As shown, the adjustment mechanism 2 includes a lifting mechanism and an angle adjustment mechanism, wherein the lifting mechanism includes a lifting motor 21, a lifting transmission assembly, a screw 12 and a lifting screw sleeve 9, a bottom plate 19 is provided at the lower end of the adjustment mechanism 2, and a fixing anchor bolt 18 is provided at the lower side of the bottom plate 19, and the lifting mechanism and the angle adjustment mechanism are both installed on the bottom plate 19, wherein a screw seat 14 is provided at the upper side of the bottom plate 19, and the lower end of the screw 12 is inserted into the screw seat 14 and is rotatably connected to the screw seat 14 through a bearing 15, and the lifting transmission assembly 2 includes a screw rod 12 and a screw rod 12. The driving assembly includes a meshing driving gear 22 and a driven gear 13. The driving gear 22 is installed on the output shaft of the lifting motor 21, and the driven gear 13 is installed on the screw 12. The lifting motor 21 transmits torque through the lifting transmission assembly to drive the screw 12 to rotate. The lifting screw sleeve 9 is sleeved on the screw 12. The rotation of the screw 12 drives the lifting screw sleeve 9 to rise and fall. A support rod 24 is provided on one side of the lifting screw sleeve 9. A rotatable rocker 23 is provided on the support rod 24, and a heating device 8 is installed at the lower end of the rocker 23.

[0026] like Figure 2 As shown, the angle adjustment mechanism includes a rotating motor 16, a wire rope drum 17, a wire rope 11 and a pulley 10. The wire rope drum 17 and the rotating motor 16 are both arranged on the bottom plate 19, and the wire rope drum 17 is driven to rotate by the rotating motor 16. The pulley 10 is arranged on the lifting screw sleeve 9. The wire rope 11 is wound on the wire rope drum 17, and one end extends upward and passes around the pulley 10 and is connected to the upper end of the swing rod 23. The wire rope 11 is rotated and released by the wire rope drum 17 and drives the swing rod 23 to swing. A reset torsion spring is arranged on the rotating shaft that is rotatably connected to the support rod 24. When the wire rope drum 17 retracts the wire rope 11, the wire rope 11 pulls the upper end of the swing rod 23 and adjusts the angle of the heating device 8. When the wire rope drum 17 releases the wire rope 11, the swing rod 23 automatically returns to a vertical position under the action of the torsion spring. In this embodiment, an encoder is provided at the rear end of the rotating motor 16 for controlling the rotation angle of the motor shaft when the angle of the heating device 8 is adjusted, thereby controlling the movement of the wire rope 11 and the swing amplitude of the rocker arm 23. The encoder is a well-known technology in the art and is a commercially available product.

[0027] In addition, when the heating device 8 adjusts its height, the rotating motor 16 rotates in coordination. When the lifting screw sleeve 9 rises, the rotating motor 16 rotates clockwise to release the wire rope 11, ensuring that the length of the wire rope 11 increases as the height of the lifting screw sleeve 9 increases. When the lifting screw sleeve 9 descends, the rotating motor 16 rotates counterclockwise to retract the wire rope 11, ensuring that the length of the wire rope 11 decreases as the height of the lifting screw sleeve 9 decreases. Figure 1 As shown, a control box 5 is provided on the outside of the open top box 1, and the cooperation between the rotating motor 16 and the lifting motor 21 is controlled by a control unit in the control box 5, which is a well-known technology in the art.

[0028] like Figure 2 As shown, a support frame 20 is provided on the bottom plate 19, and the lifting motor 21 is installed on the support frame 20. A limit block 25 is provided at the upper end of the screw rod 12 to prevent the lifting screw sleeve 9 from being separated from the screw rod 12. Figure 1 As shown, a rain shield 7 is installed on the limit block 25 .

[0029] like Figure 2 As shown, a protective cover 26 is provided on the bottom plate 19 , and the lifting motor 21 , the lifting transmission assembly, the screw seat 14 , the wire rope drum 17 and the rotating motor 16 are all arranged in the protective cover 26 .

[0030] A temperature sensor is provided in the open top box 1 for real-time monitoring of the temperature inside the box. Figure 1As shown, a control box 5 is provided on the outside of the open top box 1, and the heating device 8, temperature sensor, lifting motor 21 and rotating motor 16 are connected to the control box 5 through lines respectively, and are controlled by the control unit in the control box 5, wherein when the temperature in the box detected by the temperature sensor is lower than or higher than the set temperature, a signal is sent to the control box 5, so that the control unit in the control box 5 adjusts the heating temperature of the heating device 8, and when the heating device 8 adjusts the height and angle, the lifting motor 21 and the rotating motor 16 are controlled and coordinated by the control unit. In addition, a display screen with an operation interface can be provided on the control box 5, and the real-time temperature and other conditions when the temperature in the box is adjusted can be displayed on the display screen, which is also convenient for the experimenter to adjust the height and angle of the heating device 8 and adjust the temperature of the heating device 8 as needed. The heating device 8, temperature sensor, control box 5 and touch display screen are all well-known technologies in the art and are commercially available products. In this embodiment, the heating device 8 adopts a far-infrared ceramic heating tube (power 1KW).

[0031] like Figure 1 As shown, the open top box 1 is provided with a first fan 3 at the upper end and a second fan 4 at the lower end. The first fan 3 and the second fan 4 are used to realize ventilation in the box. The first fan 3 and the second fan 4 are both controlled by the control box 5.

[0032] like Figure 1 As shown, a door is provided on one side of the open top box 1 to facilitate entry and exit of personnel.

[0033] The working principle of the present invention is:

[0034] When the present invention is used, tree seedlings or low herbaceous plants are placed in the open-top box 1, so that the tree seedlings or low herbaceous plants are in a relatively shielded and not completely closed (top open) environment to reduce the impact of natural wind on the experiment, and the heating device 8 can automatically adjust the height and angle as needed. During the adjustment, the experimenter can operate through the display screen with an operation interface on the control box 5. When the lifting motor 21 in the lifting mechanism is started, the lifting screw sleeve 9 is driven to drive the heating device 8 to lift and lower, and during the lifting process, the rotating motor 16 is controlled by the control unit in the control box 5 to rotate in coordination. When the lifting screw sleeve 9 rises, the rotating motor 16 rotates in coordination to release the wire rope 11. When the lifting screw sleeve 9 descends, the rotating motor 16 rotates in coordination to reel in the wire rope 11. When the height of the lifting screw sleeve 9 is determined, the rotating motor 16 is started and the angle of the swing arm 23 is adjusted through the wire rope 11. In addition, the present invention provides a temperature sensor in the open top box 1 for real-time monitoring of the temperature inside the box. When the temperature inside the box detected by the temperature sensor is lower than or higher than the set temperature, a signal is sent to the control box 5, so that the control unit in the control box 5 adjusts the heating temperature of the heating device 8, and the temperature control is accurate (the error does not exceed 0.2 degrees).

Claims

1. An air temperature increase control experimental system, characterized in that: The invention comprises an open top box (1), a heating device (8) and an adjustment mechanism (2), wherein the adjustment mechanism (2) is arranged in the open top box (1), the heating device (8) is installed on the corresponding adjustment mechanism (2), the adjustment mechanism (2) comprises a lifting mechanism and an angle adjustment mechanism, wherein the lifting mechanism is provided with a lifting screw sleeve (9), one side of the lifting screw sleeve (9) is provided with a support rod (24), the support rod (24) is provided with a rotatable swing rod (23), and the swing rod (23) is provided with a reset torque on its rotating shaft. A spring, a heating device (8) is installed at the lower end of the swing rod (23), the angle adjustment mechanism comprises a rotating motor (16), a wire rope drum (17), a wire rope (11) and a pulley (10), the wire rope drum (17) is driven to rotate by the rotating motor (16), the pulley (10) is arranged on the lifting screw sleeve (9), the wire rope (11) is wound around the wire rope drum (17), and one end of the wire rope (11) extends upward and passes around the pulley (10) and is connected to the upper end of the swing rod (23); The lifting mechanism comprises a lifting motor (21), a lifting transmission assembly, a screw (12) and a lifting screw sleeve (9); a bottom plate (19) is provided at the lower end of the adjustment mechanism (2); a screw seat (14) is provided on the upper side of the bottom plate (19); the lower end of the screw (12) is inserted into the screw seat (14); the screw (12) is driven to rotate by the lifting motor (21); the lifting motor (21) transmits torque through the lifting transmission assembly; and the lifting screw sleeve (9) is sleeved on the screw (12); A temperature sensor is provided inside the open top box (1), a control box (5) is provided outside the open top box (1), and the heating device (8), the temperature sensor, the lifting motor (21) and the rotating motor (16) are respectively connected to the control box (5) through lines.

2. The air temperature increase control experimental system according to claim 1 is characterized in that: The lifting transmission assembly comprises a meshing driving gear (22) and a driven gear (13), wherein the driving gear (22) is mounted on the output shaft of the lifting motor (21), and the driven gear (13) is mounted on the screw rod (12).

3. The air temperature increase control experimental system according to claim 1 is characterized in that: When the lifting screw sleeve (9) rises, the rotating motor (16) rotates to release the steel wire rope (11), and when the lifting screw sleeve (9) descends, the rotating motor (16) rotates to reel in the steel wire rope (11).

4. The air temperature increase control experimental system according to claim 1 is characterized in that: A limit block (25) is provided at the upper end of the screw rod (12), and a rain shield (7) is installed on the limit block (25).

5. The air temperature increase control experimental system according to claim 1 is characterized in that: The control box (5) is provided with a display screen with an operation interface.

6. The air temperature increase control experimental system according to claim 1 is characterized in that: The upper end of the open top box (1) is provided with a first fan (3), and the lower end is provided with a second fan (4).

7. The air temperature increase control experimental system according to claim 1 is characterized in that: One side of the open top box (1) is provided with an opening door.

8. The air temperature increase control experimental system according to claim 1 is characterized in that: The adjustment mechanisms (2) are evenly distributed in the open top box (1) along the circumferential direction.

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