1. Winding finned tube standard

Wound finned tube is a heat exchange material widely used in industrial condensers and evaporators. Depending on the application field, 

there are different standards for wound finned tubes. Common wound finned tube standards are as follows:

1. ASME standard

ASME standards apply to wound finned tubes for industrial use in a temperature range of -20 ° C to +200 ° C.

2. DIN standard

The DIN standard is suitable for winding finned tubes in special fields such as food and medicine, and its operating temperature range is -20℃ to +120℃.

3. JIS standard

JIS standards are applicable to wound finned tubes for industrial use in Japan with a temperature range of -20 ° C to +150 ° C.

Second, winding finned tube manufacturing process

Winding finned tube manufacturing is mainly divided into the following steps:

1. Material preparation

Materials for winding finned tubes mainly include shell tubes, fins and inner tubes. These materials need to be inspected, cleaned and treated during the manufacturing process.

Step 2 Wrap

The fins are wound around the shell tube and numerically controlled to ensure the accuracy of the wound fin tube.

Step 3 Bake

Bake the wrapped shell tube and fins together to glue them together.

4. Processing

The bonded shell tubes and fins are machined to the specified dimensions and geometry.

Step 5 Test

Various inspection tools are used to inspect the manufactured finned tubes to ensure that they meet the standards.

Third, common problems analysis

1. Cracked fin

If the pressure of the fin during the winding of the fin tube is too large, it will cause the fin to crack. Therefore, it is necessary to control the pressure when manufacturing the wound fin tube to ensure that the fin will not crack.

2. The fins are not secure

If the shell tube and fin are not glued together, the fin will not be strong. Therefore, the temperature and time need to be controlled during the baking process to ensure that the shell tubes and fins can be bonded together.

3. Fin tube leakage

If the shell tube wrapped in the finned tube is deformed or damaged during use, it will cause the finned tube to leak. Therefore, it is necessary to consider the pressure resistance of the wound finned tube when selecting it.

Fourth, the choice of winding finned tubes

Choosing the right finned tube for you needs to consider the following factors:

1. Use occasion

According to the specific use of the occasion, select the fin tube that meets the requirements of its use.

2. Use temperature

Select the appropriate wound finned tube standard for the desired operating temperature range.

3. Pressure demands

Select finned tubes that meet the pressure requirements for use. In general, the greater the use pressure, the higher the required finned tube strength.

In short, the choice of the appropriate wound finned tube needs to be considered according to the specific situation. In the process of use, it is also necessary to carefully observe the state of the wound finned tube and deal with the problems in time to ensure its normal use.