Educational instrument for refrigerating system of heat pump hot water machine

Abstract

The invention discloses an educational instrument for a refrigerating system of a heat pump hot water machine. The educational instrument comprises a host machine, an educational board and an electronic control board, a refrigerating pipeline system and a hot water pipeline system mounted in the host machine, and an electric control system consisting of a host machine parameter inputting device, a circuit board and an executing mechanism and an educational board. A front surface of the educational board is printed with a structure picture and provided with a plurality of electric signal measuring points for detecting electrical device execution mechanisms of the refrigerating pipeline system and the hot water pipeline system. The measuring points are wired at the back of the board and are wired on the execution mechanisms of the corresponding refrigerating pipeline system and the hot water pipeline system. A transform device and a parameter simulation module are arranged on the educational board. By using a one-selection mode, the parameter simulation module or the host machine parameter inputting device of the electric control system is connected to an input port of the circuit board. The front surface of the electronic control board is printed with a wiring diagram and is correspondingly provided with the circuit board and part of electronic elements. A back surface is connected to wires so as to electrically connect the circuit board on the board, the host machine parameter inputting device and the execution mechanism.

Description

technical field [0001] The invention relates to the field of teaching instruments, and more specifically relates to a teaching instrument for a refrigeration system of a heat pump water heater. Background technique [0002] Heat pump water heater is an air conditioner using heat pump technology. Compared with gas, electric and solar water heaters, it has many advantages such as high thermal efficiency, energy saving and environmental protection, low operating cost, safety and reliability, and has been promoted and used by more and more people. However, as a new type of refrigeration, heat pump water heaters are not yet familiar to people. In terms of overall structure, operating process principles, electrical control, engineering construction, and especially maintenance, there is a lack of systematic technical service support, which makes teaching more difficult. It is difficult to systematically and completely grasp the working process of the refrigeration system of the hea...

AI Technical Summary

Problems solved by technology

However, the main purpose of this technical solution is to reflect the characteristics of the state change of the refrigerant in the system during the refrigeration process, so that students can break away from the abstract understanding of the physical changes of the refrigerant, and it is impossible to teach and demonstrate a complex system

At present, there is no teaching instrument that can combine heat pump water heater performance research and comprehensive training of maintenance skills, so that the refrigeration technology, performance tracking research, and comprehensive training of troubleshooting and maintenance skills of heat pump water heaters can be used in an intuitive way. teaching and research work

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