Artificial rainfall simulation equipment

Abstract

The utility model discloses artificial rainfall simulation equipment which comprises a main frame body, the main frame body comprises two transverse plates and three guide rails uniformly arranged between the two transverse plates, the three guide rails are all provided with sliding grooves, a plurality of sliding frames are arranged in the sliding grooves in a sliding mode, each sliding frame is provided with a plurality of branch pipes, and the branch pipes are arranged on the main frame body. The bottom ends of the branch pipes penetrate out of the lower surfaces of the sliding frames and are connected with the nozzles, the top ends of the branch pipes penetrate out of the upper surfaces of the sliding frames and are connected with the branch pipes, each sliding frame is provided with one branch pipe, and the end of each branch pipe is communicated with the main pipe; the sliding frame is driven by the driving device to move along the guide rail, each spray head can be driven to move, so that the simulated rainfall belt is moved to a designated position, artificial rainfall simulation better conforming to the natural rainfall condition can be performed according to the rainfall conditions of different regions and different seasons, and the natural rainfall simulation effect is greatly improved; the research on water and soil conservation and ecological restoration of the mining area is facilitated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of water and soil conservation research, and specifically to an artificial rainfall simulation equipment. BACKGROUND

[0002] Coal is the most widely distributed and largest conventional energy resource in the world, and is crucial to the global economy and China's social development. Large coal mines in China are mostly located in ecologically fragile arid and semi-arid regions such as the Inner Mongolia Plateau. Globally, open-pit mining is one of the main methods, and open-pit coal production in China accounts for 15% of the global total. Open-pit coal mining directly strips the overburden of the topsoil and coal seam, and the stripped rock and soil are stacked in layers inside and outside the mining area to form a dump. The dump is stacked in layers, with platforms and slopes alternating and gradually rising upwards, resembling a tower-shaped hill. The high and steep slopes of the dump, which are loosely structured, can cause severe water and soil loss, and are the most serious areas of water and soil loss in industrial and mining construction areas. Related studies have shown that the amount of water and soil loss on the slopes of the dump can be 239.2 times that of natural topography. Due to strict design during the accumulation process of the dump, standard platform and slope gradient control, and plant management measures, the dump has become a quantitative verification object for regional water and soil loss and soil erosion research. The stripped rock and soil of the dump are in a mixed and loose state, and have a unique form, serving as a source of sand for open-pit mines. Currently, most scholars have mainly studied water and soil loss on slopes in the Loess Plateau, but the rules of rock and soil dispersion, transportation, and deposition on the dump are different from those of loess and other soil erosion rules, so the research results of soil erosion on natural loess topography cannot be used. Therefore, the study of the process of runoff erosion and sediment production on the slopes of large open-pit mine dumps has important practical significance for mine area water and soil conservation and ecological restoration.

[0003] Natural rainfall is complex and difficult to control, while artificial rainfall simulation has the advantages of low difficulty in control, easy control, and less influence from external conditions. Artificial rainfall simulation can make up for the inability to obtain planned research results within the test period due to environmental changes under natural rainfall conditions, or further supplement the results obtained under natural rainfall conditions. Existing artificial rainfall simulation devices are usually fixed and not easy to move and adjust, and have poor simulation effects on natural rainfall, and cannot simulate different rainfall conditions. UTILITY MODEL CONTENT

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide an artificial rainfall simulation equipment that can simulate artificial rainfall more in line with natural rainfall conditions according to rainfall conditions in different regions and different seasons, greatly improving the simulation effect on natural rainfall, facilitating the study of mine area water and soil conservation and ecological restoration, and effectively solving the problems in the background art.

[0005] To achieve the above object, the utility model provides the following technical scheme: A kind of artificial simulation rainfall equipment, including main frame body, the main frame body includes two cross plates and three guide rails being evenly arranged between two cross plates, sliding slot is opened in three guide rails, several sliding frames are slidably arranged in sliding slot, several branch pipes are arranged on each sliding frame, the bottom end of branch pipe passes through the lower surface of sliding frame and is connected with spray head, the top end of branch pipe passes through the upper surface of sliding frame and is connected with branch pipe, one branch pipe is arranged on each sliding frame, and the end of each branch pipe is communicated with main pipe, and main pipe is connected with external water supply device;Driving device for driving sliding frame to move along guide rail is installed on guide rail, one fixed column is fixedly arranged on the two cross plates of main frame body, and the movable end of cylinder is rotatably connected to the outside of fixed column, and the fixed end of cylinder is arranged on external wall body or fixed frame.

[0006] As a preferred technical scheme of the utility model, the driving device includes two guide rods and a driving screw rod, the driving screw rod is rotatably arranged in the sliding slot of the guide rail in the middle and is threadedly connected with the screw hole opened in the side surface of the sliding frame, the end of the driving screw rod passes through the side surface of the upper cross plate of the main frame body and is connected with the output shaft of the driving motor through the shaft coupling, and the driving motor is installed on the side surface of the cross plate of the main frame body;Two guide rods are fixedly arranged in the sliding slot of the two guide rails on the two sides respectively, and the both ends of the sliding frame are respectively provided with sliding hole matched with guide rod.

[0007] As a preferred technical scheme of the utility model, the bottom end of the support column is provided with a wheel frame, and universal wheels are arranged on the wheel frame.

[0008] As a preferred technical scheme of the utility model, a connecting frame is arranged between the two fixed columns, a cylindrical hanger is rotatably arranged at the center position of the connecting frame, and the top end of the hanger is fixed to the external ceiling or fixed frame.

[0009] As a preferred technical scheme of the utility model, the two cylinders are symmetrically arranged with the center of the hanger as the symmetric center.

[0010] As a preferred technical scheme of the utility model, the outer side surface of the guide rail on the outside is provided with a groove parallel to the main pipe, a plurality of support frames are slidably arranged in the groove, a through slot matched with the main pipe is opened in the support frame, and the main pipe is arranged through the through slot.

[0011] Compared with the prior art, the beneficial effects of the utility model are: through the drive device drives the sliding frame to move along the guide rail, can drive each shower head to move, so that the simulated rainfall zone moves to the designated position, can according to the rainfall condition of different regions and different seasons to carry out the artificial simulated rainfall that is more in line with natural rainfall condition, greatly improves the simulation effect of natural rainfall, is favorable to the research of the water and soil conservation and ecological recovery of mining area;Through the expansion of pneumatic cylinder, the whole main frame body can be driven to rotate, adjusts the position of all shower heads, cooperates the drive of drive device and can simulate the situation that rainfall zone moves to different directions, is applicable to the influence research of the water and soil conservation and ecological recovery of mining area in different regions and different seasons and different rainfall conditions. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the structure schematic diagram of the utility model;

[0013] Figure 2 It is the side view structure schematic diagram of the utility model;

[0014] Figure 3 It is the overhead structure schematic diagram of the utility model;

[0015] Figure 4 It is the front view structure schematic diagram of the utility model.

[0016] In the drawing: 1 main frame body, 2 guide rail, 3 sliding frame, 4 drive motor, 5 guide rod, 6 branch pipe, 7 main pipe, 8 branch pipe, 9 shower head, 10 recess, 11 support frame, 12 fixed column, 13 pneumatic cylinder, 14 connecting frame, 15 hanging bracket, 16 support column, 17 wheel frame, 18 universal wheel. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model, obviously, the described embodiments only are a part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the ordinary skill in the art without making creative labor belong to the range of protection of the utility model.

[0018] Please refer to Figures 1-4The utility model provides a technical scheme: a kind of artificial simulated rainfall equipment, including main frame body 1, the main frame body 1 includes two cross plates and three guide rails 2 being evenly arranged between two cross plates, so that the overall main frame body 1 top view shape presents "day" character, three guide rails 2 are all provided with sliding slot, several sliding frames 3 are slidably arranged in sliding slot, several branch pipes 8 are arranged on each sliding frame 3, the bottom end of branch pipe 8 passes through the lower surface of sliding frame 3 and is connected with spray head 9, spray head 9 can select commonly used spray head in prior art, preferably BB1 / 8SS1 type solid cone-shaped spray head produced by Changyuan Mechanical and Electrical Business Department in Hanyang District of Wuhan, nominal orifice diameter 0.79mm, maximum free-flow passage diameter 0.64mm.BB solid cone-shaped spray nozzle generates solid cone-shaped spray shape when using, spray area is circular, spray angle is 43-120 degrees, can generate distribution uniform, droplet size is medium to large spray under large range flow and pressure, blade design is its design mechanism, and large and unobstructed passage and advanced jet control, the nozzle can exert excellent effect for the jet application field requiring complete coverage of a region.This spray head has certain initial velocity when spraying water, which helps raindrops to reach terminal velocity to obtain sufficient rainfall erosivity;And the raindrops generated by it are composed of different sizes of diameter, similar to the composition of natural rainfall droplet size, easy to obtain similar rainfall process with natural rainfall.

[0019] The top end of branch pipe 8 passes through the upper surface of sliding frame 3 and is connected with branch pipe 6, one branch pipe 6 is arranged on each sliding frame 3, and the end of each branch pipe 6 is communicated with main pipe 7, the main pipe 7 is connected with external water supply device, and the water pump used in the external water supply device is preferably a variable frequency self-priming pump, an SD-1100BP type variable frequency constant pressure single-phase self-priming booster pump produced by Zhongwei Pump Industry (Jiangsu) Co., Ltd., and specific parameters are as follows: working voltage 220V, rated power 1100W, maximum lift 50m, maximum flow 8m3 / h, rated lift 38m, rated flow 4m3 / h, maximum suction 8m, adjustable pressure 0-5bar. The pump is an intelligent variable frequency constant pressure pump, the pressure sensor attached thereto can monitor the outlet pipeline pressure in real time, and the outlet pipeline pressure is stabilized at the required pressure by adjusting the motor running speed. When adjusting rainfall intensity, only the button on the control panel needs to be adjusted, so that the pressure control of the entire rainfall device can be realized, and compared with replacing the variable diameter portion and installing pulley, it is convenient to move with the change of slope model.

[0020] Drive device for driving sliding frame 3 to move along guide rail 2 is installed on guide rail 2, sliding frame 3 is driven to move along guide rail 2 through drive device, each spray head 9 can be driven to move, so that the simulated rainfall belt can be moved to the specified position, artificial simulated rainfall more in line with natural rainfall conditions can be carried out according to rainfall conditions of different regions and different seasons, the simulation effect of natural rainfall is greatly improved, and it is favorable for the research on water and soil conservation and ecological restoration of mining area.

[0021] Two fixed columns 12 are fixedly arranged on the two horizontal plates of the main frame body 1, and the outer sides of the fixed columns 12 are rotationally connected with the movable ends of the air cylinders 13, the fixed ends of the air cylinders 13 are arranged on the external wall or the fixed frame, the stretching and retracting of the air cylinders 13 can drive the whole main frame body 1 to rotate, the positions of all the nozzles 9 are adjusted, the driving device is driven to simulate the situation that the rainfall moves in different directions, and the simulation device is suitable for studying the influence of different regions, different seasons and different rainfall conditions on the water and soil conservation and ecological restoration of the mining area.

[0022] In the preferred technical solution, the driving device comprises two guide rods 5 and a driving screw, the driving screw is rotationally arranged in the sliding groove of the middle guide rail 2 and is threadedly connected with the screw hole formed in the side surface of the sliding frame 3, the end of the driving screw penetrates through the side surface of the upper horizontal plate of the main frame body 1 and is connected with the output shaft of the driving motor 4 through a shaft coupling, the driving motor 4 is installed on the side surface of the horizontal plate of the main frame body 1, and the driving motor 4 drives the sliding frame 3 to slide in the sliding groove of the guide rail 2 through the driving screw; the two guide rods 5 are fixedly arranged in the sliding grooves of the two guide rails 2 at the two sides, respectively, and the two ends of the sliding frame 3 are respectively provided with sliding holes matched with the guide rods 5, so that the movement of the sliding frame 3 is balanced through the guide rods 5 at the two sides, and the sliding frame 3 and the nozzles 9 are more stable.

[0023] In the application, the driving motor 4 and the air cylinder 13 are electrically connected with an external control switch, and the driving motor 4 and the air cylinder 13 used in the application are common electronic components in the prior art, the specific structure, working principle and circuit connection thereof are all known technologies, and will not be described here in detail.

[0024] In the preferred technical solution, support columns 16 are fixedly arranged at the two ends of the lower surfaces of the two horizontal plates of the main frame body 1, and are used for supporting the main frame body 1 and improving the overall stability; a wheel frame 17 is installed at the bottom end of the support column 16, and universal wheels 18 are arranged on the wheel frame 17, so that the support column 16 can be rotationally matched with the universal wheels 18 when the whole main frame body 1 is driven to rotate and adjust the angle through the stretching and retracting of the air cylinder 13, and the adjustment is more convenient.

[0025] Further, a brake corresponding to the universal wheel 18 can be installed on the wheel frame 17, the universal wheel 18 is braked after the rainfall equipment is adjusted to the position, so as to ensure the stability of the simulated rainfall.

[0026] In the preferred technical solution, a connecting frame 14 is arranged between the two fixed columns 12, a cylindrical hanging frame 15 is rotationally arranged at the central position of the connecting frame 14, the top end of the hanging frame 15 is fixed to an external ceiling or a fixed frame, and the overall central position of the main frame body 1 can be fixed through the hanging frame 15, so that the center of the hanging frame 15 is taken as the center when the main frame body 1 is rotated through the air cylinder 13, and the stability of the adjustment process is ensured.

[0027] Optionally, the two cylinders 13 are symmetrically arranged with the center of the hanger 15 as the center of symmetry, the two cylinders 13 can be synchronously extended and retracted when the angle of the main frame body 1 is adjusted, and the control is simpler.

[0028] Optionally, the outer side surface of the outer guide rail 2 is provided with a groove 10 parallel to the main pipe 7, a plurality of support frames 11 are uniformly arranged in the groove 10, the support frame 11 is provided with a through slot matched with the main pipe 7, the main pipe 7 passes through the through slot, when the sliding frame 3 drives the respective branch pipes 6 to move so that the main pipe 7 also moves and is extended and retracted, the support frame 11 can limit and protect the main pipe 7, and the main pipe 7 is prevented from sliding and affecting water supply and simulated rainfall.

[0029] The non-disclosed parts in the utility model are all prior arts, and the specific structure, material and working principle are not described in detail. Although the embodiments of the utility model have been shown and described, it can be understood by those skilled in the art that various changes, modifications, replacements and variations can be made to the embodiments without departing from the principles and spirits of the utility model, and the scope of the utility model is defined by the appended claims and their equivalents.

Claims

1. An artificial rainfall device comprising a main frame (1), characterized in that: The main frame (1) includes two horizontal plates and three guide rails (2) evenly arranged between the two horizontal plates. Each of the three guide rails (2) has a sliding groove, and several sliding frames (3) are slidably arranged in the sliding groove. Each sliding frame (3) is provided with several branch pipes (8). The bottom end of the branch pipe (8) extends through the lower surface of the sliding frame (3) and is connected to the nozzle (9). The top end of the branch pipe (8) extends through the upper surface of the sliding frame (3) and is connected to the branch pipe (6). Each sliding frame (3) Each of the main frame (1) is provided with a branch pipe (6), and the end of each branch pipe (6) is connected to the main pipe (7). The main pipe (7) is connected to the external water supply device. A drive device for driving the sliding frame (3) to move along the guide rail (2) is installed on the guide rail (2). A fixed column (12) is fixedly installed on each of the two horizontal plates of the main frame (1). The outside of the fixed column (12) is rotatably connected to the movable end of the cylinder (13). The fixed end of the cylinder (13) is set on the external wall or fixed frame.

2. The artificial rainfall device according to claim 1, wherein: The driving device includes two guide rods (5) and a driving screw. The driving screw is rotatably set in the groove of the guide rail (2) located in the middle and threadedly connected to the screw hole opened on the side surface of the sliding frame (3). The end of the driving screw passes through the side surface of the horizontal plate of the main frame (1) and is connected to the output shaft of the driving motor (4) through a coupling. The driving motor (4) is installed on the side surface of the horizontal plate of the main frame (1). The two guide rods (5) are respectively fixedly set in the grooves of the two guide rails (2) located on both sides. The two ends of the sliding frame (3) are respectively provided with sliding holes that match the guide rods (5).

3. The artificial rainfall device of claim 1, wherein: The two horizontal plates of the main frame (1) are fixedly provided with support columns (16) at both ends. The bottom end of the support column (16) is equipped with a wheel frame (17) and a caster wheel (18) is provided on the wheel frame (17).

4. The artificial rainfall device of claim 1, wherein: A connecting frame (14) is provided between the two fixed columns (12), and a cylindrical hanger (15) is rotatably provided at the center of the connecting frame (14). The top of the hanger (15) is fixed to the external ceiling or the fixed frame.

5. The artificial rainfall apparatus according to claim 4, wherein: The two cylinders (13) are arranged symmetrically with the center of the hanger (15) as the center of symmetry.

6. The artificial rainfall device according to any one of claims 1-5, wherein: The outer surface of the guide rail (2) located on the outside is provided with a groove (10) parallel to the main pipe (7). Several support frames (11) are evenly slidably arranged in the groove (10). The support frame (11) is provided with a through groove that matches the main pipe (7). The main pipe (7) passes through the through groove.

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