The difference between air heater and liquid heater in use
Introduction to the difference and main features of air heaters and liquid heaters in use.
The air heater is an electric heating device that mainly heats the gas flow. The heating element of the air heater is a stainless steel electric heating tube, and the inner cavity of the heater is equipped with multiple baffles (baffles) to guide the gas flow direction and extend the residence time of the gas in the inner cavity, so that the gas is fully heated and the gas The heating is uniform and the heat exchange efficiency is improved. The heating element of the air heater is a stainless steel heating tube, which is made of a seamless steel tube with electric heating wire, and the gap is filled with magnesium oxide powder with good thermal conductivity and insulation. When the current passes through the high-temperature resistance wire, the heat generated is diffused to the surface of the heating tube through the crystalline magnesium oxide powder, and then transferred to the heated air to achieve the purpose of heating.
Air heater technical characteristics:
1.It can heat the air to a very high temperature, up to 450℃, and the shell temperature is only about 50℃.
2.High efficiency: up to 0.9 or more.
3.The heating and cooling rate block can reach 10℃/S, and the adjustment is fast and stable. There will be no leading and lagging phenomenon of the controlled air temperature to make the temperature control drift indefinite, which is very suitable for automatic control.
4. Good mechanical properties: Because its heating element is a special alloy material, it has better mechanical properties and strength than any heating element under the impact of high-pressure air flow. This is suitable for those who need to continuously heat the air for a long time. System and accessory tests are more advantageous.
5. When it does not violate the rules of use, it is durable and has a service life of several decades.
6. Clean air and small size.
Liquid heating tube is widely used, whether it is water heating, oil heating or other liquid heating, liquid heating tube is indispensable. The shape of the liquid heating tube is different in different use environments, and its installation method is also different. So let's take a look at how to install liquid heating tubes of different shapes.
1.Electric cartridge heating tube .The heating liquid in the cartridge electric heating tube is generally a threaded cartridge electric heating tube, which is often used to heat water tanks and so on. The installation method of threaded cartridge electric heating pipe is as follows:
A. Drill a threaded hole in the water tank that is consistent with the thread of the heating pipe.
B. Screw in the liquid heating tube from the outside to the inside. (There is also a threaded cartridge heating tube with upward thread, the installation direction is opposite to it)
2. U-shaped/W-shaped/straight rod/shaped electric heating tube Generally, U-shaped/W-shaped electric heating tubes that heat liquid use fasteners or silicone indenters.
A. Drill a hole slightly larger than the diameter of the pipe thread on the equipment where the electric heating pipe is installed.
B.Then put the end with the fastener through the hole, put on the gasket or washer, and screw on the nut. Introduction to the difference and main features of air heaters and liquid heaters in use.
3. The installation method of flange electric heating pipe is more complicated than the above.
There are many ways to install liquid heating pipes. According to the above introduction, everyone should know how to install liquid heating pipes.
