The working principle of stage dry ice machine

Do you know how to achieve the fairy-like smoke effect on the stage we often see? In fact, most of them are practical dry ice machines, so how does it work? Let me tell you below.

The principle of the stage dry ice machine is very simple. The internal heating is used to quickly sublimate the dry ice and guide it through the exhaust air. Because carbon dioxide is heavier than air and the temperature is very low, it will sink on the ground. The ice-cold carbon dioxide that is removed meets the surrounding air to condense the water vapor in the air and form small water droplets. The smoke is gone. This smoke effect is very environmentally friendly and is the most widely used stage smoke effect in the world.

The WUAI-3000 dry ice smoke machine uses the principle of -78 ℃ solid dry ice to generate a large amount of white smoke when heated and vaporized at normal temperature, providing a smoke effect for the stage. At present, small power dry ice machines under 3kW are used in China, which is suitable for a medium and small stage, but cannot be used for a large stage. High-power dry ice machines such as WUAI-6000 have a large smoke volume, emit smoke quickly, can quickly fill the stage, and have the advantages of environmental protection. They have been widely used in developed countries.

Doing dry ice experiment is the key to learn the knowledge of carbon dioxide dry ice

If you are determined to learn the knowledge of dry ice, then you must start with the practice of dry ice experiments, which can not only increase your interest in learning, but also enhance your understanding of dry ice phenomena, but also help you deepen your understanding of the concepts and principles of carbon dioxide dry ice At the same time, it will also strengthen your practical ability during the experiment using dry ice so that the knowledge you have mastered will never be forgotten.

Primary students should pay attention to the method of doing dry ice reaction experiment

First, the correct learning method is very important, to do the experiment must master the use of dry ice in the experiment. If you learn the Fa, you will get twice the result with half the effort; if you cannot learn the Fa, you will get twice the result with half the effort. Everything has its regularity. To learn dry ice, you must also master the regularity. If you simply memorize it hard and do not fully understand it, the knowledge gained is not systematic and comprehensive. Understanding is the basic condition of memory. If you understand the knowledge of dry ice, you will naturally remember it firmly. Why do some people think that dry ice knowledge is complex and difficult to remember? The reason is that the principle of dry ice is not mastered.

Doing dry ice-related experiments can cultivate your scientific attitude

Second, dry ice is a chemistry class, and chemical science is also experimental science. Chemical knowledge, like other scientific knowledge, is not understood at a glance and learned at a glance. It must be understood through hands-on experiments. Through hands-on experimental exercises, learn how to use dry ice in the experiment, carefully observe the phenomenon of dry ice smoking in the experiment, and discover the rules from it, in order to accurately and firmly grasp the basic knowledge of the sublimation experiment of dry ice.

Classroom chemistry teacher's explanation is also very important

In the classroom, the teacher systematically explained the concepts and laws of dry ice, guided us to carry out solid carbon dioxide experiments, organized us to discuss and explore new knowledge of dry ice, corrected our common mistakes, answered our difficulties, pointed out the focus of learning, and often pointed out ideas, Make a good demonstration of the use of scientific methods.

How to do dry ice experiment in experiment class

If any of the students have done dry ice in the laboratory, it will be clear. Therefore, in order to do the solid dry ice co2 experiment, before each experiment, you must clarify the purpose of the experiment and understand its principle, such as in the laboratory For the dry ice refrigeration test, you must know that you can't use ordinary glasses to store dry ice, understand the performance of the equipment used, and clarify the steps of the experiment. In the dry ice experiment, the operation rules should be followed, the phenomenon should be observed carefully, and the necessary data should be carefully recorded.

Use your brain to think positively about what you ca n’t do

Therefore, when taking an experimental class, do n’t just passively accept the knowledge taught by the teacher. It is important to work hard on your brain, think positively, focus your energy on understanding instead of memory, and find out why dry ice cannot be sealed and stored. If some problems are not understood for a while, ask the teacher as much as possible, and understand it by observing experiments and other methods, and only ask the teacher if necessary. The teacher may organize us to discuss in the class. At this time, we must actively participate and be brave to express our views. For example, how to form artificial precipitation of carbon dioxide dry ice, you can express your own opinions boldly. Develop the ability to exchange opinions and discuss issues with others scientifically, and maintain an attitude of asking for advice with an open mind.

Be careful while observing and thinking

Only know how much dry ice is in the experiment, why can't you touch it by hand? After the experiment, the obtained data should be analyzed to make a reasonable conclusion, and if necessary, some unclear problems should be further studied. In addition to doing experiments on your own, you must pay attention to observation experiments, analyze experimental phenomena, think deeply, draw the proper conclusions, and try to create conditions to do more simple small things outside the class. experiment. In daily life, we must pay attention to observe various dry ice phenomena, and use the chemical knowledge we have learned to analyze and study. This is also a good way to integrate theory with practice and improve thinking ability.

Enrich knowledge and active thinking by doing experiments

Through chemical experiments on solid carbon dioxide dry ice, students can be trained to observe and operate the experiment, help us understand the concept of forming dry ice and deepen and consolidate the basic knowledge of dry ice, but also develop a practical and serious scientific attitude. Verifying the theory through experimental dry ice not only learns what is not learned in books but also enriches knowledge and broadens our horizons. This is great for activating our thinking and improving our scientific thinking ability. Only in this way can we make The knowledge of dry ice came to mind.

dry ice making machine website:https://www.dry-ice-machine.com/dry-ice-granular-machine/

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How to use the dry ice machine

1. Add water: Open the top cover of the dry ice machine and add water to the proper water level (refer to the line marking in the machine)

2. Turn on the power and turn on the heating switch on the panel (it is strictly forbidden to turn on this switch before adding water to prevent the heating tube from burning dry), and the heating indicator light is on.

The dry ice machine starts heating. When the water temperature reaches the set temperature, the dry ice machine automatically stops heating.

3. Set the appropriate temperature control temperature (not more than 90 degrees, generally 70-80 degrees).

4. From the machine's dry ice channel, pour dry ice, and then close the lid, take care not to be frostbite.

5. Turn on the fan switch, the machine has dry ice smoke.

Intentions for use: After using the dry ice machine, the temperature of the water will drop significantly. If you use it again, you must wait until the water temperature is heated to the set temperature, otherwise, it will affect the use effect.

Turn off the fan switch, the machine stops working.