Drainage experimental device

 

This device is dedicated to set up water conservancy related majors such as water -supply dr--nage engineering, construction electrical, building intelligent equipment, building equipment, municipal engineering and other civil water conservancy related majors for professional colleges. The characteristics of the system adopt engineering object system design tr--ning model. Through the operation tr--ning of this device, students can evaluate the comprehensive capabilities of installation and control of water dr--nage equipment, such as pipe cutting and connection, pipeline installation, equipment installation, electrical installation, equipment wiring, and equipment wiring. Programming control, f--lure investigation, etc.; At the same time, you can cultivate students' team cooperation, work efficiency, quality awareness, safety awareness, professional ethics, and professional literacy.

 

2. System structure and composition

 

The overall st--nless steel framework is designed with a dr--nage object model. It is m--nly installed on the steel frame base for the dr--nage pipeline equipment. It has an open characteristics. Part of the composition.

 

The water supply system is composed of water tanks, pumps, water pipe pipes, pressure transmitters, pulse water meters, faucet and shower head. The pipeline is designed with a st--nless steel composite tube. It can perform the cutting, installation and water traffic test operation of the st--nless steel composite tube. By controlling the control system, the variable frequency constant voltage water supply function of the water system can be achieved. Function; the measurement of the amount of water can be completed through the pulse water meter.

 

Firefighting water supply systems m--nly include water tanks, spray pumps, stabilization tanks, wet alarm valves, pressure switches, water flow indicators, fire water supply pipes, and closed spray heads. The pipeline is designed with a galvanized pipe, which can perform cutting, filaments, installation, and water -pass test operations of galvanized pipes. The control system can be used to achieve spraying fire extinguishing function.

 

The hot water supply system is composed of electric heating boilers, hot water supply pipes, faucet and shower head. The pipeline is designed with a PPR tube, which can be cut, fused, installed, and water -pass test operation of PPR pipes.

 

The dr--nage system is m--nly composed of sewage tanks, liquid level sensors, dr--nage pumps, dr--nage pipes, and water treatment units. The dr--nage pipeline is m--nly designed with the UPVC tube. It can perform cutting, bonding, installation, and water -pass test operation of the UPVC tube. Combined with the control system, the water level detection of sewage tanks and the start -stop control of dr--nage pumps can be achieved.

1. Experimental goals

1) Meet the simulation experiment of mechanical speed fluctuation test. Adjust the speed fluctuations of speed observation machinery, solve the uneven coefficient of the system operation, and draw the measured and simulation contrast curve.

2) Meet the mechanical speed fluctuation adjustment experiment. Change the size of the flywheel and the size of the work resistance, observe the changes in mechanical speed fluctuations, and compare analysis with the theoretical calculation results, then master the adjustment method and design indicators of periodic speed fluctuations, master the flywheel design method and calculate the turning inertia of the flywheel.

2. Performance characteristics:

1) Equipped with flywheels with large and small flywheels, which can compare the speed regulation effect of different flywheel quality.

2) Equipped with springs with different rigidity as the working resistance of slider, testing the working resistance and speed fluctuation of mechanical operation in different load states.

3) The speed of the working mechanical system can be adjusted to test the speed fluctuations at different speeds and the speed adjustment effect at different speeds.

4) Make sure that each motion component of the experimental table has a good cooperation gap and has a long service life.

3. M--n technical parameters:

Big flywheel 1 φ175 × 28;

Little flywheel 1 φ145 × 25;

Base circle radius R = 40mm push rod lift H = 15;

DC speed adjustment motor 1 voltage 220V; n = 125W speed n = 1500r/min;

2 angle shift sensors;

Output voltage/pulse number: 5V/1000P, 5V/360P;

1 software disc;

Dimensions: 500x600x460mm