Rainfall simulation experiment experience teaching platform

Abstract

The invention discloses a rainfall simulation experiment experience teaching platform, including a simulation cabin, a PC, and a rainfall control module, a wind speed control module, and a temperature monitoring module uniformly controlled by the PC. The invention has the advantages that the rainfall simulation experience teaching is realized through wind speed control, rainfall simulation control, and temperature monitoring, and the trainees can experience it in person in an experimental way, so as to cultivate the observation business personnel's intuitive judgment ability on rainfall intensity, and can also understand the influence of different wind fields on precipitation observation and the influence of precipitation on temperature, and the training effect is significantly improved.

Description

Technical Field

[0001] The invention relates to the technical field of rainfall simulation, and in particular to a rainfall simulation experiment experience teaching platform. Background Art

[0002] Precipitation observation is one of the important elements in ground-based meteorological observation. Mastering the skills of identifying precipitation intensity and understanding the relationship between precipitation observation and wind and temperature are one of the difficulties in teaching. According to the ground-based meteorological observation specifications, rainfall is divided into three intensities: small, medium, and large according to the intensity of manual qualitative observations, which are characterized by clearly distinguishable raindrops, rain falling in lines, and rapid accumulation of water into puddles. In automated quantitative observations, the rainfall intensity generally ranges from 0.1 mm to 4.0 mm per minute. How to train trainees to master more detailed discrimination skills has become a difficult problem. In addition, the observation of precipitation is greatly affected by wind speed, and precipitation will cause changes in temperature. These are relatively obvious in theory. If students can experience it personally through experiments in teaching, the training effect will certainly be significantly improved. Summary of the invention

[0003] The purpose of the present invention is to provide a rainfall simulation experiment experience teaching platform, which realizes rainfall simulation experience teaching through wind speed control, rainfall simulation control and temperature monitoring.

[0004] The present invention achieves the above-mentioned purpose through the following technical solutions:

[0005] The rainfall simulation experiment experience teaching platform includes a simulation cabin, a PC, and a rainfall control module, a wind speed control module, and a temperature monitoring module uniformly controlled by the PC;

[0006] The rainfall control module is used to simulate rainfall for the simulation cabin. The wind speed control module includes a connected fan and a frequency converter. The fan blows air from the side of the simulation cabin. The frequency converter is communicated with the PC and is used to control the wind speed and air volume. The temperature monitoring module includes a temperature sensor arranged inside the simulation cabin and a temperature sensor arranged outside the simulation cabin. The temperature sensors are both communicated with the PC and are used to obtain temperature data.

[0007] A further improvement is that the output end of the fan is connected to an air duct, the end of the air duct is provided with a bellows, the bellows is installed at the side opening of the simulation cabin, and the fan blows air evenly to the inside of the simulation cabin from the side through the bellows.

[0008] A further improvement is that the simulation cabin is assembled from an alloy frame and a glass panel.

[0009] A further improvement is that the model of the fan is CF3A, and the model of the inverter is VFD1R5GB / 43A.

[0010] A further improvement is that the model of the temperature sensor is CWDZ18-DZ-RS-G.

[0011] A further improvement is that the rainfall control module includes a control box, a water tank, a water pump, a water outlet pipe, a nozzle, a valve and a rain gauge. One end of the water outlet pipe is connected to the water tank through the water pump, and the other end is laid on the top of the simulation cabin. There are several nozzles, each of which is equipped with a valve. The nozzle is installed on the water outlet pipe on the top of the simulation cabin, and the nozzle extends downward into the interior of the simulation cabin. The rain gauge is placed in the simulation cabin. The signal output end of the control box is connected to the water pump and the valve, the signal input end of the control box is connected to the rain gauge, and the control box is connected to the PC for communication.

[0012] A further improvement is that the rainfall control module also includes a return pipe, one end of which is connected to a floor drain arranged in the simulation cabin, and the other end of which is connected to a water tank.

[0013] A further improvement is that the water outlet pipe is divided into three interconnected pipes at the top of the simulation cabin, and six nozzles are installed on each water outlet pipe.

[0014] The beneficial effects of the present invention are as follows: the present invention realizes rainfall simulation experience teaching through wind speed control, rainfall simulation control and temperature monitoring, allowing trainees to experience it in person in an experimental way, which can cultivate the observation personnel's intuitive judgment ability on rainfall intensity, and can also understand the impact of different wind fields on precipitation observation and the impact of precipitation on temperature, and the training effect is significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a physical structure diagram of the present invention;

[0016] Figure 2 The electrical structure diagram of the system of the present invention;

[0017] In the figure: 1. Simulation cabin; 2. PC; 3. Fan; 4. Inverter; 5. Temperature sensor; 6. Air duct; 7. Bellows; 8. Control box; 9. Water tank; 10. Water pump; 11. Water outlet pipe; 12. Nozzle; 13. Valve; 14. Rain gauge; 15. Return pipe; 16. Floor drain. DETAILED DESCRIPTION

[0018] The present application is further described in detail below in conjunction with the accompanying drawings. It is necessary to point out here that the following specific implementation methods are only used to further illustrate the present application and cannot be understood as limiting the scope of protection of the present application. Technical personnel in this field can make some non-essential improvements and adjustments to the present application based on the above application content.

[0019] Combination Figure 1 to Figure 2As shown, the rainfall simulation experiment experience teaching platform includes a simulation cabin 1, which is assembled from an alloy frame and a glass panel, and also includes a PC 2, which is connected to a display, and also includes a rainfall control module, a wind speed control module and a temperature monitoring module that are uniformly controlled by the PC 2.

[0020] The rainfall control module is used to simulate rainfall for the simulation cabin 1. The rainfall control module includes a control box 8, a water tank 9, a water pump 10, a water outlet pipe 11, a nozzle 12, a valve 13 and a rain gauge 14 (double-tip bucket rainfall sensor). One end of the water outlet pipe 11 is connected to the water tank 9 through the water pump 10, and the other end is laid on the top of the simulation cabin 1. There are several nozzles 12, each of which is equipped with a valve 13. The nozzles 12 are installed on the water outlet pipe 11 on the top of the simulation cabin 1. The nozzle 12 extends downward into the simulation cabin 1, and the water outlet pipe 11 is divided into three interconnected pipes at the top of the simulation cabin 1, and six nozzles 12 are installed on each water outlet pipe 11; the rain gauge 14 is placed in the simulation cabin 1, the signal output end of the control box 8 is connected to the water pump 10 and the valve 13, the signal input end of the control box 8 is connected to the rain gauge 14, and the control box 8 is connected to the PC 2 through the RS485 to RS232 module (Dite DT9015 model).

[0021] In addition, the rainfall control module also includes a return pipe 15, one end of which is connected to a floor drain 16 in the simulation cabin 1, and the other end is connected to the water tank 9. The return pipe 15 can return the sprayed water to the water tank 9, so as to achieve the purpose of recycling and saving water resources.

[0022] Among them, the wind speed control module includes a connected fan 3 and a frequency converter 4, the model of the fan 3 is CF3A, the model of the frequency converter 4 is VFD1R5GB / 43A, the fan 3 blows air from the side of the simulation cabin 1, and the frequency converter 4 is connected to the PC 2 through an RS485 to RS232 module (DT9015 model) for communication and control of wind speed and air volume. The output end of the fan 3 is connected to an air duct 6, and a bellows 7 is provided at the end of the air duct 6. The bellows 7 is installed at the side opening of the simulation cabin 1, and the fan 3 blows air evenly to the inside of the simulation cabin 1 from the side through the bellows 7.

[0023] Among them, the temperature monitoring module includes a temperature sensor 5 arranged inside the simulation cabin 1 and a temperature sensor 5 arranged outside the simulation cabin 1. The model of the temperature sensor 5 is CWDZ18-DZ-RS-G. The temperature sensor 5 is connected to the PC 2 through an RS485 to RS232 module (Dite DT9015 model) to obtain temperature data.

[0024] Before using the present invention, refer to Figure 2Power the electrical equipment in the rainfall control module, wind speed control module and temperature monitoring module. When conducting simulation teaching, the precipitation simulation teaching platform should realize the following three functions:

[0025] (1) Three-level simulation and fine-tuning of rainfall intensity and feedback monitoring

[0026] According to the three-level benchmark simulation of rainfall intensity of 1mm / minute, 2mm / minute and 4mm / minute, the simulation of different rainfall intensities is formed by adjusting the opening of the sprinkler 12 and superimposing the sprinkler 12, and the simulated rainfall is collected and displayed by the double-tipping bucket rainfall sensor.

[0027] (2) Wind farm control and regulation

[0028] A fan 3 is installed at an opening at one end of the simulation cabin 1, and the fan 3 is controlled by a frequency converter 4 to provide a wind speed below 18 m / s. Under the condition of constant rainfall intensity, the influence of wind on rainfall observation is observed by adjusting the wind speed.

[0029] (3) Monitoring of temperature changes during precipitation

[0030] A set of temperature sensors 5 are installed inside and outside the simulation cabin 1 to observe the temperature difference between the inside and outside during rainfall.

[0031] The above-mentioned rainfall intensity, wind speed and temperature are centrally managed through the PC 2 control system.

[0032] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention.

Claims

1. A rainfall simulation experiment experience teaching platform, comprising a simulation cabin (1), characterized in that: It also includes a PC (2) and a rainfall control module, a wind speed control module and a temperature monitoring module which are uniformly controlled by the PC (2); The rainfall control module is used to simulate rainfall for the simulation cabin (1); the wind speed control module comprises a connected fan (3) and a frequency converter (4); the fan (3) blows air from the side of the simulation cabin (1); the frequency converter (4) is connected to the PC (2) for controlling the wind speed and air volume; the temperature monitoring module comprises a temperature sensor (5) arranged inside the simulation cabin (1) and a temperature sensor (5) arranged outside the simulation cabin (1); the temperature sensors (5) are connected to the PC (2) for obtaining temperature data; The rainfall control module comprises a control box (8), a water tank (9), a water pump (10), a water outlet pipe (11), a nozzle (12), a valve (13) and a rain gauge (14); one end of the water outlet pipe (11) is connected to the water tank (9) through the water pump (10), and the other end is laid on the top of the simulation cabin (1); there are a plurality of nozzles (12), each of which is equipped with a valve (13); the nozzles (12) are installed on the water outlet pipe (11) at the top of the simulation cabin (1), and the nozzles (12) extend downward into the interior of the simulation cabin (1); the rain gauge (14) is placed in the simulation cabin (1); the signal output end of the control box (8) is connected to the water pump (10) and the valve (13); the signal input end of the control box (8) is connected to the rain gauge (14); and the control box (8) is connected to the PC (2) for communication; The rainfall control module further comprises a water return pipe (15), one end of which is in communication with a floor drain (16) provided in the simulation cabin (1), and the other end of which is in communication with a water tank (9); The output end of the fan (3) is connected to an air duct (6), the end of the air duct (6) is provided with a bellows (7), the bellows (7) is installed at the side opening of the simulation cabin (1), and the fan (3) blows air evenly from the side to the inside of the simulation cabin (1) through the bellows (7); By adjusting the opening of the nozzle (12) and superimposing the nozzles (12) to form simulations of different rainfall intensities, the simulated rainfall is collected and displayed through a rain gauge (14); The wind speed is provided by controlling the fan (3) through the frequency converter (4), and when the rainfall intensity is constant, the influence of the wind on the rainfall observation is observed by adjusting the wind speed; During the rainfall process, the temperature difference between the inside and outside of the simulation cabin (1) is observed through the temperature sensor (5).

2. The rainfall simulation experiment experience teaching platform according to claim 1 is characterized by: The simulation cabin (1) is assembled from an alloy frame and a glass panel.

3. The rainfall simulation experiment experience teaching platform according to claim 1 is characterized by: The model of the fan (3) is CF3A, and the model of the frequency converter (4) is VFD1R5GB / 43A.

4. The rainfall simulation experiment experience teaching platform according to claim 1 is characterized by: The model of the temperature sensor (5) is CWDZ18-DZ-RS-G.

5. The rainfall simulation experiment experience teaching platform according to claim 1 is characterized by: The water outlet pipe (11) is divided into three interconnected pipes at the top of the simulation cabin (1), and six spray heads (12) are respectively installed on each water outlet pipe (11).

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