The tubular heater is a safe and efficient electric heating product. He can not only heat various objects, but even a special type of electric tubular heater can also heat the air. Of course, this is used in special cases, then the general ordinary electric heating. Why can't the tube heat the gas? The following is a small series for you.
The electric heating element does not heat any object, and the knowledge itself will cause serious damage. Because the fin-type electric heating tube is wound on the surface of the common component, the heat dissipation area is expanded by 2 to 3 times compared with the ordinary component. That is, the surface power load allowed by the fin element is 3 to 4 times that of the ordinary element.
Then there may be several reasons:
First, there is a problem with the quality of the 304 pipe;
Second, there is a problem with the quality of using magnesium oxide;
Third, there is leakage problem in the electric heating pipe;
Fourth, there is a problem with the design of the heating pipe. The power per meter is too large. Under normal circumstances, the dry heating pipe is made 1KW per meter. If the pipe diameter or fins is increased, there are fan circulation and temperature control, each meter Do 1.5KW;
5. The stainless steel electric heating pipe works continuously without temperature control and fan circulation.
The tubular heater is divided into several types of products, which are different kinds of products working in different environments. The research and development of each product is targeted, and the products used in a certain field can also be obtained through the above articles. I know, they are not universal, so you need to know his performance when purchasing an electric heating tube. Is it what you need? This can reduce a lot of trouble for you.
We know that electric heating element are very protective in life and production. In working condition, they are a state of being charged and generating high heat. We know that ordinary materials will change in the structure of matter after heating for a long time. The same electric heating tube can not escape this rule, but as long as we use it properly, it is often maintained. It is very helpful to the service life of the electric heating tube. Below we introduce the use of the electric heating tube.
First, the component is allowed to work under the following conditions: A. The relative humidity of the air is not more than 95%, and there is no explosive or corrosive gas. B. The working voltage should not be greater than 1.1 times the rated value, and the outer casing should be effectively grounded. C. Insulation resistance ≥1MΩ Dielectric strength: 2KV/1min.
Second, the electric heating pipe should be positioned and fixed, and the effective heating zone must be completely immersed in liquid or metal solids. When it is found that there is scale or carbon on the surface of the pipe body, it should be cleaned and reused in time to avoid heat dissipation and shorten the service life.
3. When heating fusible metal or solid nitrate salt, alkali, bitumen, paraffin, etc., the voltage should be reduced first, and the medium can be raised to the rated voltage after the medium is melted.