Introduction to the size of pressure reducing valve of pressure cooker and the causes of blockage and explosion

As one of the indispensable and important components of pressure cooker products, the pressure reducing valve of pressure cooker naturally has its reasons for existence, that is, it can help ensure the safety performance of actual use in the later period, and participate in the operation of users to avoid troubles or other losses, so as to achieve the expected results safely and quickly in the shortest possible time. Then the knowledge involved today is also valuable information for interested parties, including the size of the pressure reducing valve of the pressure cooker and the explanation of the reasons for the blockage and explosion.

I. Size of pressure reducing valve of pressure cooker

The pressure reducing valve size of each size pressure cooker is different.

1, the pressure relief valve of pressure cooker is not omnipotent, and the size of pressure relief valve varies with the size of pressure cooker;

2. The service life of pressure cooker is generally less than 8 years. After a long time, metal fatigue will occur. Do not use it after the safety period.

Pressure cooker, also known as pressure cooker, can heat the cooked food to above 100℃. It was invented by French physicist Dennis Papan in 1679. With its unique function of high temperature and high pressure, it greatly shortens the cooking time and saves energy; However, the pressure cooker with high working pressure is also more destructive to nutrition.

The principle of pressure cooker is simple, because the boiling point of water is affected by air pressure. The higher the air pressure, the higher the boiling point. On mountains and plateaus, the air pressure is lower than 1 atm, and water can boil at a temperature lower than 100℃. Eggs are not cooked in ordinary pots and pans. When the air pressure is greater than 1 atm, water will only boil when it is higher than 100℃. The pressure cooker commonly used by people is designed by using this principle. The pressure cooker closes the water tightly, so the water vapor generated by water evaporation can't diffuse into the air, but can only stay in the pressure cooker, which makes the air pressure in the pressure cooker higher than 1 atmospheric pressure, and also makes the water boil above 100℃, thus forming a high-temperature and high-pressure environment in the pressure cooker, and the rice is easy to cook quickly and quite crisp. Of course, the pressure in the pressure cooker will not be infinite, otherwise it will explode.

Second, why does the pressure reducing valve of the pressure cooker jam and explode?

Because when the pressure cooker is cooking, the water vapor inside is constantly evaporating, which makes the pressure inside increase. The purpose of increasing pressure is to lower the boiling point of water and make the food in the pressure cooker easier to cook (all cooked-? -#), cooking in a pressure cooker in the plateau area.

The mouth of the valve is very small. When the pressure increases to a certain extent, it will press on the valve. When the pressure of water vapor inside reaches a certain pressure, it will push the valve to rotate in the opposite direction, and the increase of pressure can be seen through the speed of the valve. The unit of force is Newton, abbreviated as n.

Don't take out the valve at will, and the pressure cooker is no different from the ordinary one except that the valve doesn't turn to block the gas (which is impossible). If the gas is blocked, it will not necessarily explode. The pressure cooker is made of high-pressure resistant materials and can withstand heavy pressure unless your pressure cooker is fake.

The above knowledge about the pressure reducing valve of pressure cooker involves a lot of valuable information and contents, including the description of the size and the cause of blockage and explosion. In addition, in order to help you achieve the expected results through a detailed understanding of the products in the early stage. From this, we can know that it is necessary for users or consumers to refer to the quality of pressure reducing valves in pressure cookers during use or purchase, so as to screen out suitable products and avoid losses caused by ignorance.

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