Teaching training table for alternating-current variable-frequency multi-unit air conditioning unit

Abstract

The invention discloses a teaching training table for an alternating-current variable-frequency multi-unit air conditioning unit. The teaching training table consists of an alternating-current variable-frequency multi-unit air conditioning unit and a manipulation training table; the alternating-current variable-frequency multi-unit air conditioning unit comprises a refrigerating system, an electrical control system and an air heat exchange system; the refrigerating system consists of a variable-frequency compressor, a fixed-frequency compressor, a main four-way valve, an auxiliary four-way valve, a condenser, a throttling component and a multi-unit indoor unit; and the electrical control system comprises a sensor, a master control board, a variable-frequency controller and a plurality of electric apparatus executing mechanisms. The teaching training table is characterized in that: a structural drawing for pipelines of the refrigerating system is printed on the front face of the manipulation training table; and a thermo-dynamical parameter instrument and an electric quantity parameter instrument for displaying real-time parameters are arranged on the front face of the manipulation training table. In the teaching training table, design functions of comprehensive teaching training such as learnings of a running mechanism, signal measurement, fault setting and diagnosis, signal acquisition and real-time demonstration, performance tracking research and the like, and experiments and the like are realized through a simulation run mode and an actual run mode.

Description

technical field [0001] The invention relates to the field of teaching appliances, and more particularly, to a teaching training platform for an AC variable frequency multi-connected air conditioner unit. Background technique [0002] The AC inverter multi-connected air conditioner can automatically select the heating, cooling and dehumidifying operation modes according to the ambient temperature, so that the room can quickly reach the required temperature in a short time and fluctuate with a small temperature difference under low speed and low energy consumption. Fast, energy-saving and comfortable temperature control. AC variable frequency multi-connected air-conditioning units are widely used because of their energy saving and comfort, but the frequency conversion technology complicates the entire electrical control system, and the refrigeration pipeline control system with frequency conversion capability adjustment is also relatively complex. With the increase of use tim...

AI Technical Summary

Problems solved by technology

However, for the teaching of the working principle of the inverter air conditioner and the detection and maintenance of common faults, it lacks intuition and demonstration functions, and the test bench needs to add various control and adjustment equipment, data acquisition computers, and requires a lot of investment. , cannot meet the needs of professional teaching practice

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