Simulation experimental device for water supply plants

Simulation experimental device for water supply plants,Thermal resistance and thermocouple temperature sensor verification experimental device

1. Experimental purpose and principle:

The task of treatment of water is to improve the quality of water, which makes it meet the water quality standards for drinking water and industrial production water.

This device is a medicine before the pump. The pump impeller is quickly mixed to quickly and evenly disperse the downtime water, which immediately dissolves, and the chemical reaction occurs, so that the colloid impurities in the water form a tiny velvet body. This process can be completed within 10-30 seconds (the water temperature is low and it will not exceed 2 minutes). In order to quickly sink the impurities particles, it must also have particles with larger particle size (0.6 ～ 1.0mm) and sufficient weight and strength (not easy to break). The task of the reaction phase is to create hydraulic conditions, so that the micro velvet can be condensed into a "alum flower" visible to the naked eye in a cert--n practice, and then enter the sedimentation pool to precipitate. The sedimentation tank uses a 60 ° sedimentation tank, which m--nly removes the suspended particles that can be removed through the effect of sinking. According to the theory of shallow pond, when the suspended particles are free to settle, the shallower the pool is shallow, the smaller the sinking speed of the suspended particles that can be intercepted, and the larger the intercepted suspended particles. This theory is suitable for pre -sinking pools for dr--nage treatment.

The process of this set of water plants, its theoretical and technical research, allows students to achieve the following goals:

1. Understand the process and technical design parameters of the wastewater factory;

2. Deepen the understanding of the basic concept of the water plant experiment.

2. M--n technical indicators and parameters:

1. Environmental temperature: 5 ℃ ～ 45 ℃

2. Treatment of water: 0.5 ～ 1m3/h,

3. Water inlet turbidity: 30 ～ 100 °,

4. Water turbidity: 2 ～ 5 °,

5. Filtering speed of fast filter pool: 8 ～ 10m/h,

6. Total size of the device: 3200mm × 500mm × 2100mm

7. Power control system: 1 double -sided sub -light -dense -densely pattern plastic control box, leakage protector, voltage meter, lock button switch, wire tube, etc.

Simulation experimental device for water supply plants,Thermal resistance and thermocouple temperature sensor verification experimental device

At present, the measurement temperature uses indirect measurement methods. It uses the characteristics of the performance of some materials or components to change with temperature, and obt--n the size of the test temperature by measuring the performance parameters. It is used to measure the temperature characteristics: thermal expansion, resistance, thermal electromotive motivation, magnetic conductivity, dielectric coefficient, optical characteristics, elasticity, etc. of the material. The first three are particularly mature and obt--ned widely used. The structure of thermal resistance and thermocouple temperature sensor is simple, easy to manufacture and wider in temperature measurement, so it is widely used. However, thermal resistance and thermocouple are affected by materials, temperature, wiring and other environmental factors, which affects temperature measurement accuracy. To be corrected for this. This experimental desk is simple and reliable. It is suitable for students to conduct heat work experiments. It can also be applied to the product quality inspection of scientific research and manufacturers.

1. The function of the experimental device

1. Calculate and calibrate the thermal and thermocouple thermometers.

2. The thermal resistance line method can adopt the second -line, third -line, and fourth heating resistor connection lines.

3. Thermocouple K, J, and T. The electromotive force can be manually measured by the potential difference meter, or it can be automatically measured by the computer.

4. Multiple thermocouple or heat resistance can be performed at a time.

5. For the automatic test system, collect automatic processing through computer data, you can display the measurement results by multiple screens, and automatically analyze.

2. The characteristics and technical indicators of experimental devices

1. Simple structure and convenient installation;

2. Have manual and automatic test functions, the test process is intuitive, fast, accurate, and convenient;

3. The system uses a constant temperature water bath, the temperature volatility is less than ± 0.5 ° C, and the temperature measurement range is 0-100 ° C.

4. For automatic testing, the data collection device uses a high -precision collection card.

5. Evolution results uncert--nty: hot electric puppet: less than 0.7 ° C; heat resistance: less than 0.05 ° C