What kind of electric heating tube can be called a high-density single head electric heating tube

What kind of electric heating tube can be called a high-density single head electric heating tube

High density single head electric heating tube is a type of electric heating tube, and ordinary single head electric heating tubes are often used in the market to impersonate high-density single head electric heating tubes. Hongchuang Electric Heating will briefly introduce what kind of electric heating tube can be called a high-density single head electric heating tube.

1. According to the heating time, under the test voltage, the time for the electric heating tube to rise from the ambient temperature to the test temperature should not exceed 15 minutes.

2. According to the rated power deviation, under sufficient heating conditions, the deviation of the rated power of the electric heating tube should not exceed the specified range.

3. Check the insulation resistance. During the factory inspection of the electric heating tube, the cold insulation resistance should not be less than 50M Ω.

4. According to the insulation withstand voltage strength, the electric heating tube should be maintained for 1 minute under the specified test conditions and test voltage, without any flashover or breakdown phenomenon.

When purchasing a high-density single head electric heating tube, it is worth testing the above four aspects more. If the test results are different from the above, it is necessary to consider whether the electric heating tube is a qualified high-density single head electric heating tube.

How to control the lifespan of electric heating tubes

It is generally divided into two situations: grasping during production and maintaining during use.

So, how to grasp the lifespan of electric heating tubes in production?

1. Use good materials, understand the usage environment of electric heating tubes, and seat them accordingly.

For example, electric heating tubes for boiling water cannot be made of iron, as iron is prone to rusting; Using copper for drinking is not suitable because copper can also produce copper rust over time; When using stainless steel, it is also necessary to choose the appropriate grade of stainless steel, as different grades correspond to different usage environments.

Also, some customers purchase electric heating tubes in environments with different temperatures, so we need to choose different magnesium oxide powders for different temperature environments.

2. Processing technology. If good materials determine 65% of the service life of electric heating tubes, then good processing technology definitely accounts for the remaining 35%.

Also, how to maintain electric heating tubes well in production?

1. Good usage frequency

2. Regular cleaning (scale and other attachments)

3. The electric heating tube used for boiling water must never dry burn (due to different production processes and materials, dry burning in specific usage environments can cause explosions, remember!); Dry fired electric heating tubes must never come into contact with liquids (some dry fired electric heating tubes use non rust resistant materials, which can damage the surface of the electric heating tube and cause a sharp reduction in its lifespan)

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