If you want to learn air conditioning and refrigeration, is there a future for learning refrigeratio

Don't just want to take theoretical classes, the important thing is practice, you can't learn nothing, if you want to learn refrigeration, it's best to find a place to learn after-sales service, no theory, if you want to learn refrigeration well, practical experience is the most important.

The refrigeration system consists of 4 parts, namely compressor, condenser, flow restrictor and evaporator. The four parts are connected in a certain order by the pipe to form a closed system, and a certain amount of refrigerant is filled into the system. Although now Freon will be limited in the future.

However, it is still the mainstream refrigerant, and ammonia (R717) is also the main refrigerant. The refrigerant absorbs heat from the outside in the evaporator and evaporates into a gas. The evaporated gas is compressed by the compressor and becomes a high-temperature and high-pressure gas, and then enters the condenser, in which the refrigerant is cooled into a liquid by the cooling medium, (there are many kinds of cooling medium, including water, brine, and ethylene glycol, etc.) The liquid refrigerant will then pass through the throttling mechanism, reduce the pressure and temperature into a gas-liquid mixture, and enter the evaporator again to absorb the heat of the surrounding objects, so as to achieve a refrigeration cycle.

Some systems will also have an economizer before the refrigerant enters the evaporator to achieve subcooling of the refrigerant, so as to produce a larger cooling capacity.

My language skills are not good, forgive me. That's pretty much how it works.

Refrigeration is relatively easy to learn, and if you can't find a job, you can do maintenance on your own.

Learning refrigeration is promising.

Refrigeration has become a major discipline in the development of science and technology in China. In recent years, refrigeration technology has been widely used in all fields of the national economy and all aspects of people's lives. Such as, large and medium-sized cold storage, all kinds of civil and public building air conditioning, commercial and household refrigerators, commercial refrigerators, etc.

Bending Spring. Refrigeration plays an important role in the production process of the petrochemical industry. Processes such as the liquefaction of natural gas and petroleum gas, as well as gas separation, are inseparable from refrigeration technology. The application of refrigeration technology in soil freezing provides safety assurance and good economic benefits for mining and tunneling.

The application of refrigeration technology has promoted the production and development of medical and health care and pharmaceutical products. Medical effects of certain diseases. Low temperature provides a guarantee for the preservation and transplantation of biological organs.

Developments in cryobiology and bioengineering. This profession can also be engaged in the manufacture of equipment for the refrigeration industry.

Employment direction and employment positions.

For mechanical engineering technicians, refrigeration and air-conditioning system installation and maintenance workers, first-class air-conditioning system operation operators and other occupations, refrigeration and air-conditioning product refrigeration system designers, product manufacturing technicians, quality inspectors, product maintenance personnel, engineering designers, budget personnel, installation, commissioning, operation and maintenance technicians, refrigeration and air-conditioning products and engineering marketing personnel, technical support personnel and other positions (groups).

Press "Mode" on the remote control until the snowflake icon appears, and you can adjust the cooling by adding or decreasing gears.

The snowflake icon is as follows:

The principle of air conditioning and refrigeration.

Household air conditioners generally use compressors as the power of electric air conditioners, the refrigeration principle of this kind of air conditioning is actually relatively simple, the air conditioner in the process of operation of the compressor will inhale the gaseous refrigerant trapped to compress it into a high temperature and high pressure gas, and then transport it to the condenser ruler.

In the condenser, the high-temperature and high-pressure refrigerant will become a low-temperature and high-pressure liquid after condensation, and then enter the evaporator after capillary throttling and decompression.

Extended information: Air conditioner refers to the process of adjusting and controlling the temperature, humidity, cleanliness, speed and other parameters of the ambient air in buildings and structures by artificial means.

Generally, it includes cold source, heat source equipment, cold and hot medium transmission and distribution system, terminal device and other major parts and other auxiliary equipment. It mainly includes pumps, fans and piping systems. The terminal device is responsible for using the cold and heat from the transmission and distribution to treat the air specifically to make the air parameters of the target environment meet the requirements.

First of all, you can select the mode of cooling through the remote control, and then adjust the temperature of the refrigeration to the refrigeration temperature that suits you.

How to adjust the cooling of the air conditioner? Looking at the indoor temperature, it is generally adjusted to 223 degrees.

How to adjust the refrigeration of the air conditioner, press the remote control to select the mode, and then select the snowflake is refrigerated.

It must be learned from "Engineering Thermodynamics", and it doesn't matter if you learn it simply, but at least you must understand the T-S diagram and the like.

To get started, you have to start from installation and after-sales, and cooperate with relevant professional books, such as "Refrigeration Principles and Devices", "Refrigeration Compressors", etc.

There are three main aspects to learn:

1. Electrical appliances, learn the control system hardware and software of air conditioning.

2. Zheng Xiande, editor-in-chief of refrigeration professional "Refrigeration Principles and Devices", and Miao Daoping and Wu Yezheng of "Refrigeration Compressor".

3. Machinery manufacturing, mechanical design, etc.

I think it's better to start with the installation of water and electricity! Because water and electricity are the basic skills of air conditioning.

The best way is to start from installation and after-sales, and cooperate with relevant professional books, such as "Refrigeration Principles and Devices", "Refrigeration Compressors", etc.

Let's learn the principle of refrigeration first! Then look at the refrigerator. Book of Air Conditioner Repair!

Summary. Hello dear, not for girls. You can go to supermarkets, hospitals, airports, stations and intelligent buildings for the installation, commissioning, maintenance and operation management of air conditioning devices; Production and management of refrigeration and air-conditioning equipment manufacturing units.

Hello dear, not for girls. You can go to the city, hospitals, airports, stations and intelligent buildings to install and clear the air conditioning, commissioning, maintenance and operation management of Anhong; Production and management of refrigeration and air-conditioning equipment manufacturing units.

What major is better for a girl to study?

Hello, the majors suitable for girls are finance, public finance, taxation, nursing, stomatology, minor languages, normal majors, etc.

The maintenance of refrigeration equipment belongs to the specialty of electronic appliances.

Refrigeration equipment is more popular, that is, it is easy on the surface, but it is actually technical.

Refrigeration equipment devices are relatively few, and relatively simple.

People engaged in refrigeration maintenance must first grasp the principle of the refrigeration process and what devices are needed to complete the entire refrigeration process.

One more point, practice welding more. Gas welding is still very important, that is, you have mastered the principle of refrigeration, if the welding process is not proficient, you will not be able to complete the assembly and fault repair.