Refrigerator history

1. What are the historical records of the invention of the refrigerator? As early as thousands of years ago, people knew how to preserve food with natural ice, but it was also a luxury, because there was no refrigeration equipment at that time, and it was difficult to find natural ice in tropical areas or hot summer.

/kloc-in the 0/8th century, Australia's animal husbandry developed rapidly, and mutton production was surplus. Local herders want to sell mutton to Europe and freeze it with natural ice. Once, they loaded a ship with 20 tons of mutton, which contained a lot of natural ice.

However, when we arrived in England, 20 tons of mutton had melted, rotted and deteriorated. It turned out that the ice in the cabin melted because of the high temperature when the ship passed through the equator.

This incident made people realize that it is not reliable to freeze food by natural ice. Therefore, some scientists are committed to studying new freezing methods.

Jacoby, an American who works in Britain? Perkins' discovery led to the invention of the refrigerator. In 1834, he found that some liquids can cool down when they evaporate, so he invited a group of technicians to make a model to prove this idea.

Sure enough, this device really produced some ice in one night. The mechanics excitedly picked up the ice and showed Perkins their achievements.

Because Perkins was old, he didn't show his invention to the public. The person who turned this invention into commercial sales was a Scottish printer living in Australia-John? Harrison.

Harrison may have discovered the cooling effect without knowing Perkins' results. One day, he washed metal type with ether and noticed the cooling effect of this substance.

1862, his first batch of refrigerators went on the market. Harrison also set up the first refrigeration workshop in Bendigo, Victoria.

Faraday, a British physicist, had already discovered the principle of artificial refrigeration in his experiments, but he didn't think of how to use it at that time. This refrigeration principle provided a research basis for later scientists.

Chemist Linde first noticed Faraday's discovery. Through a lot of experiments, he put forward the idea of making a refrigerator and made a refrigerator with ammonia as refrigeration. 1876, the chemist Thiel built a refrigerated ship using the refrigerator made by Linde Company, and an ammonia vapor compression refrigerator was installed on the ship.

However, due to water leakage in cooling coils during the voyage, the system failed. When the ship sailed for London, all the mutton on board went bad.

After that, the researchers continued to improve, until 1880, the world's first frozen ship safely transported Australian mutton to London. 1879, German engineer Karl? Feng? Linde made the first household refrigerator.

In the 1920s, before the invention of the refrigerator, it was not popular in the family, so some people began to study small household refrigerators. 1923, Swedish engineers Brighton and Mendes invented a refrigerator with a compressor driven by a motor.

The compressor of this refrigerator is separate from the food freezer. The compressor is placed on the ground and connected to the freezer through a pipeline. Because the refrigerant in this refrigerator has a strong smell, which affects people's health and is too large, it has not been commercialized.

19 10, the world's first household refrigerator with compression refrigeration came out in the United States. 1925, Lido Company of Sweden developed the household absorption refrigerator.

1927, the American general electric company developed a fully enclosed refrigerator. From 65438 to 0930, air-cooled continuous diffusion absorption refrigerators with different heating methods were put on the market.

1930, American engineer Midley chose a group of chlorofluorocarbons as the research object according to the periodic law of chemical elements, and successfully found an ideal and efficient refrigerant-freon. This kind of refrigerant is low in toxicity, nonflammable and highly volatile, so it is a good refrigeration material.

Later, it was found that freon destroyed the ozone layer, and began to study the refrigerator with electromagnetic vibrator as the main power to drive the compressor and the refrigerator with solar energy as the cold energy in fluorine-free green ice.

2. the history of the refrigerator Frey Quidel refrigerator: cold, clean, large capacity.

Before the 20th century, it was inconceivable to put food in the refrigerator, and life without refrigerator in the 20th century was inconceivable. Before the refrigerator appeared, we were always worried that food would taste bad or even rot if it was kept for a long time. The invention of food storage method in low temperature environment has a lot to do with slaughter industry.

/kloc-at the end of 0/9, butchers in Europe have to transport live livestock to other places by train before they can be slaughtered. They couldn't stand the railway department getting most of the profits from them for a long time, and finally invented the low-temperature transport vehicle, which can transport the meat to other places in a short time without deterioration or even corruption. So that livestock can be slaughtered anytime and anywhere.

The real refrigerator was invented in the 1920s. 1920. A flat-panel printer named Willis H in Brooklyn, new york, Carrier engineers designed a system that can control temperature and humidity.

The cellar owner and the manager of the milk company storing fur further improved the mechanical refrigerator technology as needed. During the First World War, some smaller household refrigerators appeared. This is a new invention, which is noisy and easy to leak. In fact, it just installed a motor and a rotating belt in the old "ice box" shell, which made it look like an experiment.

1923, when Quidel Danfray was a branch of general motors, it introduced a new mechanical refrigerator component and assembled it into a refrigerator. FreyGuide refrigerator is designed to put the "ice box" for storing perishable food and refrigeration machinery into a special cabinet.

This device is quiet, convenient and compact. At this point, a new refrigerator style was born, and brand names were everywhere.

Since then, with the sharp increase in output, the price of refrigerators has plummeted. By 1944, about 85% of American families have mechanical refrigerators.

"Ice box" has only been handed down as a word. If there is no refrigerator, not only housewives will be much tired, but also many life comforts, including drinking whisky with ice, will be greatly reduced.

Before the 20th century, it was inconceivable to put food in the refrigerator, and life without refrigerator in the 20th century was inconceivable. .

3. The history of refrigerators allows fresh goods to be easily taken out of Frey Quidel refrigerators: cold, clean and large in capacity.

Before the 20th century, it was inconceivable to put food in the refrigerator, and life without refrigerator in the 20th century was inconceivable. Before the refrigerator appeared, we were always worried that food would taste bad or even rot if it was kept for a long time. The invention of the method of storing food in low temperature environment has a great relationship with the slaughter industry.

/kloc-at the end of 0/9, butchers in Europe have to transport live livestock to other places by train before they can be slaughtered. They couldn't stand the railway department getting most of the profits from them for a long time, and finally invented the low-temperature transport vehicle, which can transport the meat to other places in a short time without deterioration or even corruption. So that livestock can be slaughtered anytime and anywhere.

The real refrigerator was invented in the 1920s. 1920, Willis H. Carrier, an engineer in a flat-panel printing factory in Brooklyn, new york, designed a system to control temperature and humidity. The cellar owner and the manager of the milk company storing fur further improved the mechanical refrigerator technology as needed.

During the First World War, some smaller household refrigerators appeared. This is a new invention, which is noisy and easy to leak. In fact, it just installed a motor and a rotating belt in the old "ice box" shell, which made it look like an experiment. 1923, when Quidel Danfray was a branch of general motors, it introduced a new mechanical refrigerator component and assembled it into a refrigerator.

FreyGuide refrigerator is designed to put the "ice box" for storing perishable food and refrigeration machinery into a special cabinet. This device is quiet, convenient and compact.

At this point, a new refrigerator style was born, and brand names were everywhere. Since then, with the sharp increase in output, the price of refrigerators has plummeted.

By 1944, about 85% of American families have mechanical refrigerators. "Ice box" has only been handed down as a word.

If there is no refrigerator, not only housewives will be much tired, but also many life comforts, including drinking whisky with ice, will be greatly reduced. Before the 20th century, it was inconceivable to put food in the refrigerator, and life without refrigerator in the 20th century was inconceivable.

The invention of the refrigerator, an American working in Britain, jacoby? Perkins' new discovery led to the invention of refrigerator. In 1834, he found that when some liquids evaporate, there will be a cooling effect.

Perkins asked a group of technicians to make a working model that could prove the idea. Sure enough, this device really produced some ice in one night.

The mechanics excitedly took the ice cubes, jumped into a carriage and hurried to Perkins' house to show him their achievements. Perkins was old at this time. Although Harrison didn't sell his invention in the market, his work paved the way for early household refrigerators.

The life of an inventor-John, a Scottish printer living in Australia? Harrison. Harrison may have discovered the cooling effect without knowing Perkins' results.

He cleaned metal type with ether, and one day he noticed the cooling effect of this substance. By 1862, his first refrigerator was on the market.

Harrison also established the first refrigeration workshop in a brewery in Bendigo, Victoria. /kloc-at the end of 0/9, only the rich who build an ice bank can enjoy this benefit.

What most people expect is a refrigerator. At that time, one of the most important uses of refrigerators was on ships.

Large cold storage means that ships can carry edible fresh meat on long-distance voyages, such as mutton, which can be exported from New Zealand to Europe. German engineer Carl? Feng? Linde manufactured the first household refrigerator in 1879.

But before the invention of refrigerators in the 1920s, refrigerators did not enter the home on a large scale. Refrigerator is one of the earliest domestic refrigeration appliances in China, which began in the early 1980s. After nearly 20 years of development, refrigerators in China have accounted for 16% of the world's total output, ranking first in the world.

As the domestic market has entered a mature stage, the basic feature of market operation is relative stability, and there will be no ups and downs in demand. The consumption of refrigerators is mainly concentrated in cities and towns. Due to the limitation of income level and living habits, the number of refrigerators in rural areas is much lower than that in cities and towns.

Origin: The first household refrigerator came from Germany, which is one of the absolutely indispensable appliances in our life. In the early years, when there was no refrigerator, many people would prepare a big wooden cabinet, under which ice cubes could be stored, and the shelf in the middle could store all kinds of foods that needed to be refrigerated.

But even so, not every household can enjoy it. But when it comes to the invention of the first refrigerator, it dates back to19th century.

Jacoby Perkins, an Englishman, discovered in 1834 that liquid would have a cooling effect when it evaporated, so he recruited a group of workers to build a simple working model. On the day when the model was officially put into operation, some ice cubes were indeed produced.

Later, a Scottish printer named Harrison noticed the cooling effect of the liquid when cleaning metal movable type, and set up a refrigeration workshop in a brewery in Victoria. German engineer Karl von Linde invented the first household refrigerator.

But unfortunately, electricity was not widely used at that time, so the scale of refrigerator entering the family was still limited. It was not until the mid-1920s that an inventor introduced electrical equipment into the household refrigerator, and finally the household refrigerator was born.

4. The history of refrigerator development Before the 20th century, it was unthinkable to put food in the refrigerator, and life without refrigerator in the 20th century was also unimaginable.

Before the refrigerator appeared, we were always worried that food would taste bad or even rot if it was stored for a long time. The real refrigerator was invented in the 1920s. 1920, Willis H. Carrier, an engineer in a flat-panel printing factory in Brooklyn, new york, designed a system to control temperature and humidity. The cellar owner and the manager of the milk company storing fur further improved the mechanical refrigerator technology as needed. During the First World War, some smaller household refrigerators appeared. This is a new invention, which is noisy and easy to leak. In fact, it just installed a motor and a rotating belt in the old "ice box" shell, which made it look like an experiment.

1923, when Quidel Danfray was a branch of general motors, it introduced a new mechanical refrigerator component and assembled it into a refrigerator. FreyGuide refrigerator is designed to put the "ice box" for storing perishable food and refrigeration machinery into a special cabinet. This device is quiet, convenient and compact. At this point, a new refrigerator style was born, and brand names were everywhere.

Since then, with the sharp increase in output, the price of refrigerators has plummeted. By 1944, about 85% of American families have mechanical refrigerators. "Ice box" has only been handed down as a word.

If there is no refrigerator, not only housewives will be much tired, but also many life comforts, including drinking whisky with ice, will be greatly reduced. Before the 20th century, it was inconceivable to put food in the refrigerator, and life without refrigerator in the 20th century was inconceivable.

Refrigerator principle

Refrigerator uses evaporative cooling or gasification to absorb heat to achieve the purpose of refrigeration. At the throat of the refrigerator, there is a refrigerant called freon commercially, commonly known as snow seed. Commonly used is difluoromethane (CCL2F2), which is a colorless, odorless and nontoxic gas with a boiling point of 29℃. Freon is pressurized by a compressor when it is gaseous.

After being pressurized, it flows to the condenser at the back of the refrigerator through the throat, is cooled by the radiator (the temperature of the substance will rise after being compressed), and then condenses into liquid. After the liquid freon enters the valve of the evaporator, it immediately turns into steam because it is out of the pressure of the compressor, and absorbs the latent heat of vaporization from the air and food in the refrigerator, causing the refrigerator to be cold. The vaporized freon is pressed back to the condenser outside the box by the compressor to dissipate heat, and then becomes liquid, so the heat energy in the refrigerator is pumped out of the box.

References:

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5. The development history of refrigerator The invention of refrigerator jacoby, an American who works in Britain? Perkins' new discovery led to the invention of refrigerator.

In 1834, he found that when some liquids evaporate, there will be a cooling effect. Perkins asked a group of technicians to make a working model that could prove the idea.

Sure enough, this device really produced some ice in one night. The mechanics excitedly took the ice cubes, jumped into a carriage and hurried to Perkins' house to show him their achievements.

Perkins was old at this time. Although Harrison didn't sell his invention in the market, his work paved the way for early household refrigerators. The life of an inventor-John, a Scottish printer living in Australia? Harrison.

Harrison may have discovered the cooling effect without knowing Perkins' results. He cleaned metal type with ether, and one day he noticed the cooling effect of this substance.

By 1862, his first refrigerator was on the market. Harrison also established the first refrigeration workshop in a brewery in Bendigo, Victoria.

/kloc-at the end of 0/9, only the rich who build an ice bank can enjoy this benefit. What most people expect is a refrigerator.

At that time, one of the most important uses of refrigerators was on ships. Large cold storage means that ships can carry edible fresh meat on long-distance voyages, such as mutton, which can be exported from New Zealand to Europe.

German engineer Carl? Feng? Linde manufactured the first household refrigerator in 1879. But before the invention of refrigerators in the 1920s, refrigerators did not enter the home on a large scale.

The principle of refrigerator is to use evaporative refrigeration or gasification to absorb heat to achieve the purpose of refrigeration. At the throat of the refrigerator, there is a refrigerant called freon commercially, commonly known as snow seed.

Commonly used is difluoromethane (CCL2F2), which is a colorless, odorless and nontoxic gas with a boiling point of 29℃. Freon is pressurized by a compressor when it is gaseous.

After being pressurized, it flows to the condenser at the back of the refrigerator through the throat, is cooled by the radiator (the temperature of the substance will rise after being compressed), and then condenses into liquid. After the liquid freon enters the valve of the evaporator, it immediately turns into steam because it is out of the pressure of the compressor, and absorbs the latent heat of vaporization from the air and food in the refrigerator, causing the refrigerator to be cold.

The vaporized freon is pressed back to the condenser outside the box by the compressor to dissipate heat, and then becomes liquid, so the heat energy in the refrigerator is pumped out of the box.

6. Seeking the development history of modern refrigerators In the 1920s, the world's first single-pressure absorption refrigerator was born in distant northern Europe and Sweden.

Who would have thought that the refrigerator that has brought great changes to our lives is just the homework done by two young students to get their degree certificates. 1922, two young engineers, Baltzar von Platen and Carl Munters, from the Royal Institute of Technology in Stockholm, Sweden, submitted a degree project that caught their attention-a refrigerator that simply uses the absorption process and is cooled by heat.

The energy of the heat source to start this process is provided by electricity, gasoline or kerosene, which makes the system extremely flexible. 1923, they set up their own two companies: arctic co., ltd and platen-Monte refrigeration system co., ltd.

However, both inventors are poor intellectuals. Like other young inventors, they are in urgent need of funds to develop products and bring them to market.

Some people in the world can always catch business opportunities most keenly, such as Weiner Green, the founder of Electrolux. He became the Bole of Balzar von Planlin and Karl Monte, and also seized the opportunity to make his company prosperous.

To tell the truth, when he grasped this information and became interested in the absorption refrigerator, the machine was far from good enough. Based on the degree homework of two little boys, it is bold to propose to buy these two companies.

But without such bold fanatics, I'm afraid our use of refrigerators will be delayed for several years! With the joining of Weiner Green and Electrolux, the refrigerator business of Arctic Refrigerator Factory has been greatly improved, and they started mass production. From 65438 to 0925, Electrolux introduced its first refrigerator, Model D, to the market.

The first version, model D, puts the cooling device and electrical accessories into a "hump" with a capacity of 9 1 liter. Many people find that "this wonderful box" solves the problem of keeping their food fresh.

1927, an American company named Severel was established and began to produce refrigerators in Electrolux, and was licensed to supply the American market. Severel provides refrigeration compressors for large refrigerators and refrigeration equipment.

Absorption technology is not enough to meet these challenges, and compressors are needed. The cooperation with Severel enabled Electrolux to enter the Swedish specialized refrigeration equipment market.