DYLR-2017D home smart electric water heater maintenance and installation experimental platform

The household electric water heater m*ntenance and installation experimental device is based on the "Technical Specifications for Vocational Skills Tr*ning and Appr*sal Equipment for "Household Electronic Product Rep*rers" issued by the Ministry of Labor and Social Security of the People's Republic of China, and in accordance with the teaching and tr*ning requirements of vocational education. The products developed are suitable for practical tr*ning and teaching of courses such as TV principles and m*ntenance, household electronics principles and m*ntenance, etc. in applied electronic technology, electronic and electrical appliance application and m*ntenance in higher vocational colleges and vocational schools.

This tr*ning device simultaneously meets the needs of vocational colleges, technical schools, vocational tr*ning for migrant workers, vocational education centers, appr*sal stations/institutes for home appliance majors and home appliance m*ntenance workers, as well as skill appr*sal assessments for intermediate and senior workers.

2. System composition of household intelligent electric water heater m*ntenance and installation experimental device

1. This device consists of four parts: a tr*ning control screen, a tr*ning table, an electric water heater and a tr*ning component. The tr*ning control screen (iron double-layer matte dense spray-p*nted structure, aluminum-plastic panel)

2. AC power supply (all with overcurrent protection)

Output power supply: m*ns non-isolated output 220V 50HZ, isolation transformer output 220V 50HZ

3. DC power supply: ± 24V/+12V/+5V

4. Electric water heater: Remote-controlled sealed storage-type electric water heater

5. Refrigeration , heating and home appliance m*ntenance skills teaching software: This system is in apk format and can be used on PC or mobile terminals. This system can set faults manually or automatically. This system can set faults manually through the circuit diagram. The green box selects manual setting of fault points (up to 39 fault points can be set), or the system can automatically set one random fault point, two random fault points, three random fault points, and four random fault points automatically. Settings, five random fault points are set. This system has functions such as toolbox, component library, magnifying glass, circuit diagram, etc. You can select a multimeter for detection through the toolbox, select appropriate components through the component library, and clearly understand each component through the magnifying glass. Components and circuits. This system allows students to understand the working principle and circuit structure of the motor star-delta start control circuit through the setting of faults in the motor star-delta start control circuit and various investigations.

(3) Practical tr*ning components

This device consists of a remote-controlled sealed water storage electric water heater module, an experimental water tank, a circulating water pump, and an intelligent practical tr*ning and assessment system.

1. Electric water heater tr*ning module

It is equipped with a schematic diagram of the electric heater's internal circuit control system, fault simulation detection points, and a built-in troubleshooting system (which can randomly identify fault points by the computer). The fault points use replaceable transparent components, that is, students can troubleshoot damaged components based on the fault phenomenon, using a plug-in type. Replace components.

2. Intelligent practical tr*ning and assessment system

(1) The computer can monitor 1-126 household appliances intelligent assessment station

(2) Multiple fault points have been set up.

(3) With curling function

(4) With rewinding function

(5) It has the function of clearing single and all experimental benches

(6) Automatically detect the communication connection status of each household appliance assessment station

(7) Can generate student personal transcripts

(8) Statistics and analysis of student assessments can be carried out

(9) There is a password to enter the system, and you can change the password after entering the system.

(10) With printing function

(11) With the function of limiting the number of answers

(12) The student station is equipped with an intelligent clicker. Students can exchange data with the teacher through the clicker.

(4) Tr*ning table: The overall structure adopts steel-wood floor-standing table, which is convenient for laboratory layout. The desktop is made of waterproof, fireproof, and resistant high-density board, with solid structure and beautiful appearance. Equipped with drawers and cabinet doors for placing tools and materials.

3. Technical performance of household smart electric water heater m*ntenance and installation experimental device

1. Input power supply: single-phase three-wire AC220V ± 10% 50HZ

2. Working environment: temperature -10 ℃ ~ + 50 ℃, relative humidity < 85% (25 ℃)

3. Overall machine capacity: < 2KW

4. Safety protection: action current ≤ 30mA, action time ≤ 0.1s

5. Overall dimensions: 100cm × 70cm × 165cm

6． Equipped with laboratory management system, with password boot and scheduled shutdown functions

4. Household smart electric water heater m*ntenance and installation experimental device tr*ning project

1. Electric water heater installation and pipeline design experiment

2. M*nboard +12V power supply f*lure

3. The infrared receiver is damaged.

4. The indicator light is on but the heating is not on, the problem and its rep*rs

5. The heating temperature of the electric water heater is lower than the set temperature, fault phenomenon and rep*r

6. Electric water heater temperature sensor f*lure

7. The key switch is damaged

8. Leakage switch f*lure

9. Electric heating f*lure

10. Water heater temperature fuse f*lure