Refrigeration experiment (practical training) device

Abstract

The invention relates to a refrigeration experiment (practical training) device comprising a compressor, a first condenser, a drying filter, a capillary tube and a first evaporator, which are connected in sequence to form a loop. A first cut-off valve and a second cut-off valve are arranged on the inlet pipeline and the outlet pipeline of the first condenser, respectively. A branch loop is connected between the output end of the compressor and the input end of the drying filter. The branch loop comprises a third cut-off valve, a fourth cut-off valve and a second condenser or a first liquid reservoir connected between the third cut-off valve and the fourth cut-off valve. The increase or the decrease of the refrigerant inside the refrigeration system is implemented by the on-off combination of the cut-off valves, so that students can easily complete the gradual adjustment of the refrigerant and clearly know the relationship between the quantity of the refrigerant and the variation of parameters in the refrigeration system. Therefore, the refrigeration experiment (practical training) device can effectively increase the perceptual knowledge, the experimental fun and the operation ability of adjustment and maintenance in students. Additionally, the refrigeration experiment (practical training) device has the advantages of complete recovery and utilization of the refrigerant, low resource consumption, environmental protection and long service life of the compressor.

Description

technical field [0001] The present invention relates to a teaching experiment equipment, in particular to a refrigeration experiment (training) equipment that can be adjusted gradually and enables students to clearly observe different phenomena and improve students' debugging and maintenance skills. It is also suitable for the refrigerant of refrigeration equipment Recycle. Background technique [0002] At present, the development of refrigeration experiment (training) equipment in China is relatively slow, there are fewer innovative experiment (training) equipment, and there are not many equipment suitable for students to do it, which is far behind the rapid development of secondary vocational and higher education. The refrigeration education industry is eager to have innovative refrigeration experiment (training) equipment as soon as possible to improve the students' hands-on ability, and at the same time improve the students' comprehensive ability to analyze and solve ref...

AI Technical Summary

Problems solved by technology

[0004] At the same time, the invention solves the problem that the original refrigeration experiment equipment directly discharges the refrigerant into the air when reducing the refrigerant, which causes a large waste of resources, also destroys the atmosphere and pollutes the environment, and excessive discharge times will also cause the compressor to lose oil. Dead technical problem; provide a kind of refrigeration experiment (training) equipment that does not need to discharge the refrigerant into the air, the refrigerant can be 100% recycled, saves resources, protects the environment, and does not cause damage to the compressor

[0005] The invention also solves the technical problem that when the original refrigeration experiment equipment adds refrigerant from the outside, it is easy to bring air into the refrigeration system, which affects the experimental effect and misleads the students; Add, avoid bringing air into the refrigeration system, so as to ensure the accurate refrigeration experiment (training) equipment of the experimental effect

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