1. How was the refrigerator invented? Chinese composition

In 1862, American Jacoby Perkins invented the first batch of refrigerators.

A refrigerator consists of a cabinet, a refrigeration system, a control system and accessories. In the refrigeration system, it mainly consists of four parts: compressor, condenser, evaporator and capillary restrictor, forming a closed cycle system.

My refrigerator is a "Siemens" brand. It is white and has been used for 7 years. Its appearance is a rectangular, three-dimensional "cold cabinet", 1.4 meters long and 0.5 meters wide. There are two "doors" in the front. The upper "door" is used for refrigeration and can hold drinks, fruits, vegetables and other refrigerated foods. , the lower part is used for freezing, specifically for ice cream, meat and other frozen foods.

When you open the upper door, you will see three plastic shelves, a fruit and vegetable box and a temperature regulator on the left. There are also four "baskets" of different sizes on the right, including a It is specially placed for eggs, and there are three drawers on the lower level. In summer, the sun's fierce rays shine on the earth and the sea.

Whenever I come home from school, I rush to the refrigerator and take out a bottle of frozen drink or ice cream, and eat and drink it with relish. It’s so enjoyable! After buying vegetables, my mother always puts part of the vegetables in the refrigerator to keep the vegetables fresh. It can be seen how important the refrigerator is to people's lives! I sometimes decorate the refrigerator, such as a pattern of Mickey Mouse eating ice cream or a lamb blowing on the air conditioner.

I have posted everything about "cold"! Refrigerators play a great role in people's present and even future. 2. A 200-word essay on the invention of the refrigerator by a scientist

This summer I invented a "refrigerator power saver". Do you want to know how it saves electricity? Then read the short article.

This "power saver" is actually just an ordinary lunch box, but it can not only be used for eating, but also can be used to save electricity! In the morning, put cold water in the lunch box, then put it in the freezer. After freezing for 4-6 hours, at night, put the "refrigerator power saver" into the freezer. Just turn off the power of the refrigerator, and you don't have to worry, and you can go to sleep peacefully.

This "refrigerator power saver" mainly uses the principle of circulation. First, put the "power saver" in and you can use the electricity used by the refrigerator in the morning to freeze the water. At night, just place the "battery saver" on top of the food.

I think this method is wasteful. The answer is: NO. This water can be recycled.

Do you think this invention is clever? I also invented a "solar hot water gas". Do you want to know what it looks like? Then read the short article! "Solar hot water" is just an oil drum, but the most important thing is a plastic bag (preferably a darker color). Just put the oil drum into a plastic bag and then tie the bag.

Hang it outside the balcony in the morning, take it back at night, and pour the water out to wash your feet and face. Does this save a lot of electricity? "Thrift is the traditional virtue of the Chinese nation", so students, please save. 3. Essay on the Invention of the Refrigerator

It is late at night, and the whole family has entered a sweet dreamland. Only one thing in my house is still working hard: my refrigerator. It has been serving my family for five years. Because my mother always maintains the refrigerator very carefully, and with the love and care of our family, she is still so beautiful and touching.

She has a white and moist body. On her face, there are several colorful "false eyelashes" (stickers). Of course, on her mouth, which is bigger than a computer screen, there are various Color "lipstick". Let me tell you secretly, these decorations are actually my masterpieces! Looking at her appearance, she can be called "the top model in the refrigerator industry".

There are seven floors in the refrigerator, three floors in the refrigerator, and four floors in the freezer.

Opening the door of the refrigerator compartment, snacks are neatly placed on the first floor, while fruits and vegetables and some leftovers are placed on the second and third floors. After listening to my introduction, There are so many, I think you will definitely call it a "big eater".

On the door of the refrigerator, several lively and cute little egg babies are lying lazily in their own nests and sleeping, seeming to be waiting for the call of their owners.

Sometimes, I will also put the delicious QQ candy in the refrigerator. When I take it out to eat, it will make you feel chewy. The deliciousness is refreshing and makes you intoxicated. This can be attributed to the refrigerator!

Every summer, I would ask my mother to take me to buy popsicles and enjoy the delicious food. Sometimes, the sun is so strong that it can roast a living duck, but I have to go out to play again, what should I do? I opened the refrigerator, and a burst of cool air hit me, refreshing. Then I took out another popsicle and opened the paper bag. Oh, the ice is cool, sweet and sour, so delicious!

The benefits of the refrigerator go beyond these. It can also keep food fresh for a long time. My mother saw that the meat on the street was cheap and fresh, so she bought two bags of it. But my father was not at home at night, so my mother and I were the only ones at home. What should we do if we couldn’t finish eating so much meat? Mom washed the meat, packed it in bags, and put the meat into the refrigerator slowly.

Although the refrigerator has many functions, it has one flaw: it cannot work during a power outage, just like Liang Shanbo's military adviser was useless (Wu). If in the future an inventor can invent a battery to be installed in the refrigerator, then there will be no need to worry about power outages. 4. A 200-word essay on the invention of the refrigerator by a scientist

This summer I invented a "refrigerator power saver". Do you want to know how it saves electricity? Then read the short article.

This "power saver" is actually just an ordinary lunch box, but it can not only be used for eating, but also can be used to save electricity! In the morning, put cold water in the lunch box, then put it in the freezer. After freezing for 4-6 hours, at night, put the "refrigerator power saver" into the freezer. You can turn off the power of the refrigerator, and you don't have to worry, and you can go to sleep peacefully. This "refrigerator power saver" mainly uses the principle of circulation. If you put the "power saver" first, you can use the electricity used by the refrigerator in the morning to freeze the water. At night, just place the "battery saver" on top of the food. I think this method is wasteful. The answer is: NO. This water can be recycled.

Do you think this invention is clever?

I also invented a "solar hot water heater". Do you want to know what it looks like? Then read the short article! "Solar hot water" is just an oil drum, but the most important thing is a plastic bag (preferably a darker color). Just put the oil drum into a plastic bag and then tie the bag. Hang it outside the balcony in the morning, take it back at night, and pour the water out to wash your feet and face. Does this save a lot of electricity?

"Frugality is the traditional virtue of the Chinese nation", so students, economize! 5. Diary of the Invention of the Refrigerator

Wednesday, November 17, 2030 Weather: Sunny At noon, I lay on the bed and fell asleep unknowingly.

Hey, I seem to be on another planet. When I looked at the electronic calendar, I realized it was the year 2151.

I was walking on the wide compound road and saw an advertisement for a super refrigerator on an electronic billboard. I thought: There might be some in supermarkets.

I took a space-time flight and came to the supermarket. After entering the supermarket gate, the hyperspace vehicle took me to the place where future refrigerators are sold.

There was a guy giving a presentation. He brought a newborn baby and took out the milk from the refrigerator. The milk was warm, fragrant and sweet.

How strange! After the child ate the milk, he would call his mother and laugh from time to time.

After seeing all this, I was shocked! The supermarket staff also introduced many magical functions of the super refrigerator. After hearing this, I immediately called my mother and asked her to buy one.

I shouted: "Mom..." "Xiao Ming, wake up! Get up quickly!" Hey, why did I come home again? Oh, it turned out to be a dream. 6. Diary of the Invention of the Refrigerator

When I walk on the wide compound road, I can call my mother.

I shouted, the hyperspacecraft took me to the place where future refrigerators are sold again! Get up quickly and check the weather on Wednesday, November 17, 2030. Then take out the milk from the future refrigerator and see the super refrigerator advertisement displayed on the electronic billboard. I thought, only to realize that this is Earth in 2151.

There was a guy giving a presentation. He brought a newborn baby: Qing At noon, I lay on the bed and fell asleep unconsciously.

Hey, I seem to be on another planet! After the child ate the milk, he came to the supermarket. After seeing all this, I was shocked! The supermarket staff also introduced many magical functions of the super refrigerator. After hearing this, I immediately called my mother to tell her.

When I saw the electronic calendar, I also asked her to buy one. The milk was warm, fragrant and sweet. How strange! "Hey, why am I back home again? Oh, it turns out this is a dream: there may be some in the supermarket.

I took a ride on a hyperspacecraft: "Mom..."" Xiao Ming wake up. Entering the supermarket gate, I was still laughing from time to time. 7. A 300-word explanatory essay about refrigerators

Frekidale refrigerator: cold, clean, and large in capacity.

Before the 20th century, it was unimaginable to use refrigerators to preserve food. Life without refrigerators in the 20th century was unimaginable.

Before the advent of refrigerators, we had been trying to store food for a long time. It will become no longer fresh and even become rotten and annoying. The invention of the method of storing food in a low-temperature environment has a great relationship with the slaughter industry. At the end of the 19th century, European slaughterhouses had to transport live livestock by train to other places before they could be slaughtered. They could not bear the long-term suffering of the railway sector taking most of the profits from them, so they finally invented a low-temperature transport vehicle that could transport meat Put it inside and transport it to other places without deterioration or even corruption in a short period of time. In this way, it becomes possible to slaughter livestock anytime and anywhere.

The real refrigerator was invented in the 1920s. In 1920, an engineer named Willis H. Carrier at a lithography factory in Brooklyn, New York, designed a refrigerator that could control the temperature. and humidity systems. Cellar owners and milk company managers who stored furs further improved mechanical refrigerator technology as needed. Around the time of World War I, some smaller domestic refrigerators appeared, a noisy, leaky new invention that was essentially just an old "ice box" shell with a motor and rotating belt inside. , which makes its appearance look like a test subject.

In 1923, when Frekidale was still a branch of General Motors, it introduced a new mechanical refrigerator component and assembled it into a refrigerator. The Frechidale refrigerator was designed to house the "ice box" for storing perishable food and the refrigeration machinery into a purpose-built cabinet. This device is quiet, convenient, and compact. At this point, a new style of refrigerator was born along with trademark names that could be seen everywhere.

Since then, as the production volume has increased dramatically, the price of refrigerators has plummeted. By 1944, about 85% of American households had mechanical refrigerators. "Icebox" survives only as a word.

If there is no refrigerator, not only will housewives be much more tired, but many life enjoyments, including drinking whiskey with ice, will be greatly reduced. Before the 20th century, it was unimaginable to use refrigerators to preserve food. In the 20th century, life without refrigerators was unimaginable.

If it’s not good, you can change it! 8. Write a 400-word explanatory essay on refrigerators for fourth graders

In 1862, American Jacoby Perkins invented the first refrigerators.

The refrigerator is composed of a box, a refrigeration system, a control system and accessories. In the refrigeration system, it mainly consists of four parts: compressor, condenser, evaporator and capillary restrictor, forming a closed cycle system.

My refrigerator is a "Siemens" brand. It is white and has been used for 7 years. Its appearance is a rectangular, three-dimensional "cold cabinet", 1.4 meters long and 0.5 meters wide. There are two "doors" in the front. The upper "door" is used for refrigeration and can hold drinks, fruits, vegetables and other refrigerated foods. , the lower part is used for freezing, specifically for ice cream, meat and other frozen foods. Open the upper door, and you will see three plastic shelves, a fruit and vegetable box and a temperature regulator on the left. There are also four "baskets" of different sizes on the right, one of which is specifically for eggs. There are three drawers on the lower level.

In summer, the sun’s fierce rays shine on the earth and the sea. Whenever I come home from school, I rush to the refrigerator and take out a bottle of frozen drink or ice cream, and eat and drink it with relish. It’s so enjoyable! After buying vegetables, my mother always puts part of the vegetables in the refrigerator to keep the vegetables fresh. It can be seen how important the refrigerator is to people's lives!

I sometimes decorate the refrigerator, such as Mickey Mouse eating ice cream, or a lamb blowing on the air conditioner. I post everything about "cold"!

Refrigerators play a great role in people’s present and even future! 9. The description of the refrigerator is 400 words.

Refrigerator

Jacoby Perkins, an American working in England, made a new discovery, which led to the invention of the refrigerator. . In 1834 he discovered that when certain liquids evaporate, there is a cooling effect. Perkins asked a team of mechanics to create a working model that would prove the idea.

Sure enough, the device actually produced some ice one night. The technicians excitedly jumped into a carriage with ice in hand and sped to Perkins' house to show him what they had achieved. Perkins was now elderly, and although he did not market his invention, Harrison's work paved the way for early-style home refrigerators.

The life of the man who sold inventions was a Scottish printer named John Harrison in Australia. It is possible that Harrison discovered the cooling effect without knowing Perkins' results. He used ether to clean metal printing type and one day noticed the cooling effect of the substance. By 1862, his first refrigerators were on the market. Harrison also set up the first refrigeration workshop at a brewery in Bendigo, Victoria. At the end of the 19th century, only wealthy people who built icehouses could enjoy this benefit. What most people want is just a refrigerator.

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

German engineer Carl von Linde built the first household refrigerator in 1879. But before the invention of the electric refrigerator in the 1920s, refrigerators did not enter households on a large scale.

Refrigerators are one of the earliest domestically produced refrigeration appliances in China. Starting in the early 1980s, after nearly 20 years of development, Chinese refrigerators have accounted for 16% of the world's total output and ranked first in the world. . Since the domestic market has entered a mature stage, the basic characteristic of market operation is that it is relatively stable and there will be no ups and downs in demand. Refrigerator consumption is mainly concentrated in cities and towns. Due to restrictions on income levels, living habits, etc., the number of refrigerators owned in rural areas is much lower than that in urban areas.

Refrigerators make fresh food readily available

Frekidale Refrigerator

Before the 20th century, it was unthinkable to use refrigerators to preserve food. There were no refrigerators in the 20th century Life is unimaginable

Before the advent of refrigerators, we have been troubled by the fact that food will become no longer fresh or even spoil after being stored for a long time.

The invention of the method of storing food in a low-temperature environment has a great relationship with the slaughter industry. At the end of the 19th century, European slaughterhouses had to transport live livestock to other places by train before they could be slaughtered. They could not bear the long-term suffering of the railway sector taking most of the profits from them, so they finally invented a low-temperature transport vehicle that could transport meat Put it inside and transport it to other places without deterioration or even corruption in a short period of time. In this way, it becomes possible to slaughter livestock anytime and anywhere.

The real refrigerator was invented in the 1920s. In 1920, an engineer named Willis H. Carrier at a lithography factory in Brooklyn, New York, designed a refrigerator that could control the temperature. and humidity systems. Cellar owners and milk company managers who stored furs further improved mechanical refrigerator technology as needed. Around the time of World War I, some smaller domestic refrigerators appeared, a noisy, leaky new invention that was essentially just an old "ice box" shell with a motor and rotating belt inside. , which makes its appearance look like a test subject.

In 1923, when Frekidale was still a branch of General Motors, it introduced a new mechanical refrigerator component and assembled it into a refrigerator. The Frekidale refrigerator was designed to house the "ice box" for storing perishable food and the refrigeration machinery into a purpose-built cabinet. This device is quiet, convenient, and compact. At this point, a new style of refrigerator was born along with trademark names that could be seen everywhere.

Since then, as the production volume has increased dramatically, the price of refrigerators has plummeted. By 1944, about 85% of American households had mechanical refrigerators. "Icebox" survives only as a word.

Without a refrigerator, not only would housewives be much more tired, but many of the enjoyments of life, including drinking whiskey with ice, would be greatly reduced. Before the 20th century, it was unimaginable to use refrigerators to preserve food. In the 20th century, life without refrigerators was unimaginable. 10. I want a 500-word essay about refrigerators

Hello, as follows:

My refrigerator

In a corner of my kitchen, there is a tall electrical appliance, it is our refrigerator.

My refrigerator is 1.4 meters high. It is a double-door refrigerator with a white shell. The upper layer is for refrigerated food and the lower layer is for the freezer. The upper part of the refrigerator has a large capacity. There are two shelves on the upper door. The first shelf has a plastic shelf made up of small holes. These plastic shelves are used to put eggs. The eggs can be safely Keep it here, and you can put some milk on the second shelf above the door. Opposite the door is a place dedicated to staple food. You can put some vegetables, fruits and other things on it to keep them fresh.

The second floor is the freezing section. As soon as you open the door, you will feel a blast of cold air, and you will feel like you have entered the world of ice and snow. In summer, I often put a lot of ice cream here, and when it is very hot, I can take it out to eat. My mother often puts some raw meat in it.

After listening to my introduction, you must think that my refrigerator is fully functional. In fact, my refrigerator can only be regarded as a medium-sized refrigerator. There are also more advanced three-door refrigerators and small and exquisite single-door refrigerators. With the development of science and technology, the functions of refrigerators will become more and more perfect. Refrigerators are also an indispensable appliance in modern families. Refrigerators can bring convenience to people. I believe that refrigerators in the future will be more advanced.

Please adopt it if you are satisfied, thank you for your cooperation!