How many secrets are there in your life that you don't know about?
Release time：
24 Feb,2022
Summary
How many secrets are there in your life that you don't know about?
With the rapid development of technology, the flow measurement and control of gases has become mainstream in industry. But did you know that gas measurement and control is widely used in daily life?
The weather is warming up, and spring is in the air. It's time for a holiday, to take the family out for a drive. Today, the flowers in the Bei Jiu Shui Scenic Area of Qingdao are in full bloom, so we will use this as our holiday destination to show you the application of gas measurement and control in daily life.
Surface treatment
First, let's talk about our car dashboards as we drive to our holiday destination. Many cars have leather dashboards, or at least they look like leather.
A company manufactures a "skin" that is applied to car dashboards, giving it a "leather look". This skin is produced by spraying liquid and polyurethane onto a nickel mold. Mass flow controller Combined with valves, it forms the basis of this solution, which can precisely apply external release agents to the surface of the nickel mold.
Glass coating
The car's front windshield. To control the light transmittance of the glass, and also to make the glass waterproof, protect it from mechanical and chemical stress, increase scratch resistance and shatter protection, thermal mass flow controllers are used in the coating process to achieve these functions.
By controlling the flow rate of various process gases, the uniformity of film thickness is improved.
Headlight coating
In the early 1980s, when polycarbonate was introduced as a replacement for headlamp glass, new problems arose. Headlights are susceptible to harsh environments. Due to their location at the front of the car, key parameters affecting service life and performance are weather, scratches, and wear.
To protect the headlights from these factors, scratch and wear-resistant coatings have been developed, which are applied to the headlights using robotic spraying, which is controlled by mass flow controller the flow to the nozzle flow.
Ice cream Production
For most people, ice cream is a classic summer treat. However, at the moment you enjoy ice cream, you may not think about how this delicacy is made. For ice cream making, aeration in the production process is crucial.
This is because air accounts for 30% to 50% of the total volume of ice cream. Higher aeration will produce tastier and smoother ice cream. A side effect of adding air to ice cream is that it melts more easily.
Therefore, to obtain the optimal structure of ice cream, it is important to have a stable inlet air flow during production and a constant cream/air ratio. This can be achieved by using a mass flow controller.
What is the relationship between ice cream and mass flow meters?
Ice cream contains many different ingredients, such as fat, sugar, milk solids, emulsifiers, flavorings, and sometimes colorings. But there's one main ingredient you might not have thought of: air. Ice cream is made by freezing and simultaneously mixing air into the ingredients. So why is air so important?
If you've ever had a bowl of ice cream melt and then refreeze it, it may not taste as good. Also, if you leave a container of ice cream in the hot sun to melt, the volume of the ice cream will decrease. Air accounts for 30% to 50% of the total volume of ice cream, so aeration during the production process is crucial.
The amount of air in ice cream (often called overrun) affects the taste, texture, and appearance of the finished product. Higher aeration will produce tastier and smoother ice cream. Another effect of adding air to ice cream is that it melts more easily. Therefore, to obtain the optimal structure of ice cream, it is very important to have a stable inlet air flow during production and maintain a constant cream/air ratio. This can be achieved by using a mass flow controller.
The process of whipping ice cream into shape
To ensure the correct consistency and structure of the finished ice cream, the cream must contain the correct proportion and composition of bubbles. Therefore, aeration mixer manufacturers use mass flow controllers to add precise amounts of air to the cooled mixer. This mass flow controller will ensure that the continuously delivered air and cream flow are proportional. Regardless of any possible back-end pressure changes, the mass flow controller must be able to maintain its performance . Sometimes, a check valve is installed downstream of the mass flow controller. If the inlet pressure drops, this valve will prevent ice from flowing back into the instrument. A pressure gauge can also be used to detect the inlet pressure.
LED lighting
Driving home at night, in outdoor road lighting, lighting control technology is used. When the traffic flow is large, the streetlights operate at full power. When it is late at night and the traffic flow is low, they operate at half power, i.e., dual-power street lighting is implemented to achieve energy saving. With the development of LED light source technology, the improvement of efficiency, and the reduction of price, it is easier to control, drive, and dim, providing great possibilities for lighting energy saving. For example, in large underground spaces such as Beijing, Shenzhen, and Shanghai, tunnels, and subway stations have been newly built or renovated, directly using LEDs for lighting, using intelligent control systems, dimming at different times to save energy; in office spaces, intelligent sensing of whether there are people or not, realizing automatic dimming according to the behavior of people using lights, etc., to meet the lighting needs of different people and create a comfortable and energy-saving lighting environment.
LEDs work through a phenomenon called electroluminescence, which is the emission of light from a semiconductor (diode) under the influence of an electric field. For example, by applying semiconductor materials such as gallium phosphide arsenide phosphide, red, orange, and yellow light emitting diodes are manufactured. Mass flow control also plays a role in this.
Having said so much, do you have a better understanding of mass flow control?
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