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Refrigerating system used for practical training

A refrigeration system and training technology, used in educational appliances, teaching models, instruments, etc., can solve problems such as difficulty in getting started, abstract and complicated electrical control systems, and few practical links, and achieve the effect of reducing consumption.

Inactive Publication Date: 2017-05-31
武汉华育诺为信息技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

To master refrigeration technology, it is necessary not only to master the refrigeration cycle system, but also to master the electrical control system. However, the refrigeration cycle system is an invisible cycle process. The abstraction is complex and difficult to start with, which cannot be fully grasped only from theoretical knowledge
At present, in the teaching of refrigeration, especially in the teaching of refrigerator refrigeration, there are few practical links, and the effect of practical teaching is poor, mainly because of the lack of suitable teaching tools, which directly leads to the lack of practical experience for students after graduation, and they cannot complete the teaching as soon as possible. immerse in work

Method used

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  • Refrigerating system used for practical training
  • Refrigerating system used for practical training
  • Refrigerating system used for practical training

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038]Embodiment 1: The refrigerant used in the present invention is R600a, and the gaseous R600a is compressed by the compressor 1 to become a high-temperature and high-pressure gas and enters the condenser through the high-pressure exhaust pipe 13. In the case of natural cooling, the high-temperature and high-pressure gaseous R600a becomes a liquid with high pressure and normal temperature, flows through the sight glass 3 and dry filter 4 through the pipeline, and enters the two-position three-way solenoid valve. When the two-position three-way solenoid valve is de-energized, the liquid passes through the two-position three-way solenoid valve. Flow from port 1 to port 3. At this time, the electromagnetic valve is closed, and the first capillary tube 6 is decompressed and throttling, and becomes a low-pressure medium-temperature liquid, and then first enters the evaporator 9 in the refrigerator room and then enters the evaporator 10 in the freezer room. The R600a liquid absorbs...

Embodiment 2

[0039] Embodiment 2: The refrigerant used in the present invention is R600a, and the gaseous R600a is compressed by the compressor 1 to become a high-temperature and high-pressure gas and enters the condenser through the high-pressure exhaust pipe 13. In the case of natural cooling, the high-temperature and high-pressure gaseous R600a becomes a liquid with high pressure and normal temperature, flows through the pipeline through the sight glass 3 and the dry filter 4, and enters the two-position three-way solenoid valve. When the two-position three-way solenoid valve is energized, the liquid passes through 1 of the two-position three-way valve. The flow from port 2 to port 2, at this time, the electromagnetic valve is opened, and the second capillary tube 7 is decompressed and throttling, and then goes to the evaporator 10 of the freezer through the solenoid valve, and the R600a liquid absorbs heat and expands, absorbing the heat of the items in the freezer, and then the low-temp...

Embodiment 3

[0040] Embodiment 3: the present invention is carried out leak detection, in the system, fill into the nitrogen of certain pressure or dry air, and close all outlets, generally fill into the nitrogen of 1.25Mpa pressure and carry out pressure test, and the pressure test time is 24 hours, sees that pressure has If there is no drop, if there is, it is necessary to carry out leak detection, and the common soapy water leak detection method is used for leak detection.

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Abstract

The invention relates to a refrigerating system used for practical training. The refrigerating system comprises a compressor, a condenser, a refrigerating chamber evaporator, a freezing chamber evaporator, a high-pressure exhaust pipe and a low-pressure returning pipe, and further comprises an electromagnetic valve, a two-position three-way electromagnetic valve, a first capillary tube and a second capillary tube. A port 2 of the two-position three-way electromagnetic valve is in pipeline connection with the inlet end of the second capillary tube, and the outlet end of the second capillary tube is connected between the outlet end of the refrigerating chamber evaporator and the inlet end of the freezing chamber evaporator through the electromagnetic vale and a pipeline. The refrigerating process is fully realized, sight glasses are arranged at the outlet end of each device so that the structure of an internal refrigeration cycle system can be seen clearly, and therefore students can understand the system more visually; furthermore, by arranging the two-position three-way valve in the pipeline, different refrigerating components can be selected to work as needed, and unnecessary consumption is reduced.

Description

technical field [0001] The invention relates to the field of refrigeration equipment, in particular to a refrigeration system for practical training. Background technique [0002] At present, the development of refrigeration training equipment in China is relatively slow, and there are fewer innovative experimental equipment, which lags behind the rapid development of secondary vocational and higher education. The education industry is eager to have innovative experimental equipment as soon as possible to improve students' hands-on ability. With the increasing use of refrigerators, the maintenance of refrigerators requires a lot of theoretical knowledge and practical foundation. To master refrigeration technology, it is necessary to master not only the refrigeration cycle system, but also the electrical control system. However, the refrigeration cycle system is an invisible cycle process. It is difficult to understand and grasp the changing process of refrigerant in the cycl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09B25/02
CPCG09B25/02
Inventor 黄升平胡松林张珍明罗文彩
Owner 武汉华育诺为信息技术有限公司