Several Factors Affecting the Heat Exchange Effect of Stainless Steel Heat Exchange Tubes
By: mxgy,
Zhejiang Max Stainless Steel Co., Ltd. is a modern stainless steel pipe manufacturing enterprise integrating scientific research, production and sales. The company adopts an advanced, efficient and mature production management model, and the company selects Walsin Lihua and Yongxing Special Steel base materials as the leading materials for the production of high-quality stainless steel, providing the most reliable and safest stainless steel pipes and fittings for global users.
The stainless steel heat exchange tube is one of the components used in the heat exchanger and plays an important role in the heat exchanger, so its heat exchange effect is also very important. So do you know which factors will affect the heat exchange effect of stainless steel heat exchange tubes?
1. Material of stainless steel heat exchange tube
Commonly used stainless steel heat exchange tube materials include carbon steel, low alloy steel, stainless steel, copper, copper-nickel alloy, aluminum alloy, titanium, etc.; graphite, ceramics, and polytetrafluoroethylene are non-metallic materials. Since most of the media transported in the heat exchanger are hot water or corrosive liquids, when choosing copper heat exchange tubes, the oxide layer will increase with time, and the thickness will become thicker. , the more internal fouling, the worse the heat transfer effect, and the stainless steel heat exchange tube will basically not oxidize, even if the oxidation speed is relatively slow.
2. Inner wall thickness and shape
Corrugated tubes are commonly used in heat exchangers, and their unique ultra-thin-walled corrugated tubes can enhance heat transfer. The difference in height between the crests and troughs causes the fluid to be strongly disturbed, making it turbulent even at low velocities. At the same time, the temperature gradient of the thin tube wall is small, which greatly reduces the thermal resistance of the tube wall, improves the heat transfer coefficient inside and outside the tube, and increases the total heat transfer coefficient.
3. Surface smoothness
If the threaded tube is selected as the heat exchange tube, during the heat exchange process, the medium flowing in the threaded tube will rotate around the radius of curvature of the threaded tube, resulting in the tube being radial and circumferential. The secondary reflux along the flow direction makes the convective heat transfer coefficient larger. Therefore, the heat transfer effect of the threaded pipe is better. Most of the heat exchange pipes in industrial production are stainless steel threaded pipes.
CNMAX has always taken “quality assurance, professional service, and customer satisfaction” as its corporate purpose, and its pioneering, pragmatic, and innovative entrepreneurial spirit will continue to contribute high-quality stainless steel products to the society, complement each other’s advantages, and work together to create a better world.
Several Factors Affecting the Heat Exchange Effect of Stainless Steel Heat Exchange Tubes
By: mxgy,
Zhejiang Max Stainless Steel Co., Ltd. is a modern stainless steel pipe manufacturing enterprise integrating scientific research, production and sales. The company adopts an advanced, efficient and mature production management model, and the company selects Walsin Lihua and Yongxing Special Steel base materials as the leading materials for the production of high-quality stainless steel, providing the most reliable and safest stainless steel pipes and fittings for global users.
The stainless steel heat exchange tube is one of the components used in the heat exchanger and plays an important role in the heat exchanger, so its heat exchange effect is also very important. So do you know which factors will affect the heat exchange effect of stainless steel heat exchange tubes?
1. Material of stainless steel heat exchange tube
Commonly used stainless steel heat exchange tube materials include carbon steel, low alloy steel, stainless steel, copper, copper-nickel alloy, aluminum alloy, titanium, etc.; graphite, ceramics, and polytetrafluoroethylene are non-metallic materials. Since most of the media transported in the heat exchanger are hot water or corrosive liquids, when choosing copper heat exchange tubes, the oxide layer will increase with time, and the thickness will become thicker. , the more internal fouling, the worse the heat transfer effect, and the stainless steel heat exchange tube will basically not oxidize, even if the oxidation speed is relatively slow.
2. Inner wall thickness and shape
Corrugated tubes are commonly used in heat exchangers, and their unique ultra-thin-walled corrugated tubes can enhance heat transfer. The difference in height between the crests and troughs causes the fluid to be strongly disturbed, making it turbulent even at low velocities. At the same time, the temperature gradient of the thin tube wall is small, which greatly reduces the thermal resistance of the tube wall, improves the heat transfer coefficient inside and outside the tube, and increases the total heat transfer coefficient.
3. Surface smoothness
If the threaded tube is selected as the heat exchange tube, during the heat exchange process, the medium flowing in the threaded tube will rotate around the radius of curvature of the threaded tube, resulting in the tube being radial and circumferential. The secondary reflux along the flow direction makes the convective heat transfer coefficient larger. Therefore, the heat transfer effect of the threaded pipe is better. Most of the heat exchange pipes in industrial production are stainless steel threaded pipes.
CNMAX has always taken “quality assurance, professional service, and customer satisfaction” as its corporate purpose, and its pioneering, pragmatic, and innovative entrepreneurial spirit will continue to contribute high-quality stainless steel products to the society, complement each other’s advantages, and work together to create a better world.
