Application of laser welded finned tubes in boilers and wall-hung stove.

-
Laser welded finned tubes are used in civil wall-hung stove, industrial boilers, etc. Using German technology and it is just started to be used in China, but have been used in Europe for decades of years. The advantage is that the contact thermal resistance is zero, which is finned compared to high frequency welding Larger, lighter, compact heat exchanger assembled, more energy-saving and environmentally friendly, which is complied with national emission requirements. Main materials are: stainless steel, titanium, copper, carbon steel. There are many types of finned tubes, mainly high frequency welding finned tubes. Although it is more advanced in terms of product quality and production automation than inlaying and brazing methods, but because of the high frequency welding of finned tubes Difficulties in welding the roots and wrinkles in the roots cause many shortcomings in the high-frequency welding finned tubes in terms of heat exchange efficiency and convenience in preventing dust accumulation. 
https://szmurphy.en.alibaba.com/product/62419262982-811592052/Murphy_Copper_nickel_industrial_electric_boiler_laser_welding_heat_exchanger_Laser_Welded_Finned_Tubes_heat_exchange.html?spm=a2700.icbuShop.41413.33.bcc26a21xI1iqq

According to above advantage of it and in order to comply it with the national policy on energy conservation and emission reduction. Murphy Laser welded finned tube is the most advanced product, which has irreplaceable advantages 1: the thickness of the base tube can be 0.8-1.5 mm, and the thickness of the fin can be 0.3-1 mm, which greatly saves material costs compared to other processes. 2: High penetration rate, can prevent gap corrosion, prolong service life, and reduce heat transfer heat resistance. 3: Break through the limitation of materials and use different materials for processing. 4: Easy secondary processing can be directly coiled and bent. 5: The welding heat-affected zone is small, and the metallographic changes are small, making small-diameter finned tube processing possible. The materials of the heat exchange tube and the condensing tube should have excellent heat transfer performance, but also have good corrosion resistance, erosion resistance, abrasion resistance, and good strength and rigidity and plasticity, which is easy to manufacture.

评论

发表评论

此博客中的热门博文

Everything you should know about U bend tube

-
图片
  Murphy can make  U bend tube  in our factory according to customer requirements. The elbow is heat treated according to the customer’s requirements, and then hydrostatic pressure test and dye penetration test are performed as needed. U-shaped elbows are widely used in  heat exchanger  systems. Heat exchanger equipment based on stainless steel U bend tube plays an important role in the nuclear industry and petrochemical machinery manufacturing. U bend tube heat exchangers are specially designed for high temperature applications, especially steam condensing or hot oil systems. When the differential expansion makes the fixed tube-sheet heat exchanger unsuitable, and in some cases the floating head type (HPF) cannot be selected, the U bend tube heat exchanger will be selected. The surface of the finished U-shaped elbow should be free from scale and scratches after bending. Dimensional tolerance U-bend pipes are in accordance with relevant regulations of TEMA R.C.B...
阅读全文

How to Optimize the Design of Finned Tube Phase Change Heat Storage

-
图片
  Finned tube structure Finned tubes are widely used in power, chemical and other industries. Many spiral heat transfer surfaces or threaded tubes can be regarded as finned tubes. It has a significant effect on expanding the heat transfer area and promoting turbulence, and it has a great effect on both single-phase-convection heat transfer and phase-change convective heat transfer.  The structure of the finned tube heat exchanger is basically the same as the general shell and tube heat exchanger. Just use finned tubes instead of light tubes as the heat transfer surface. Finned tube heat exchangers are also often used to heat or cool the gas outside the tube, and steam or water is passed through the tube, such as air coolers, boiler economizers, radiators, etc.   Finned tube material The finned tube has a wide range of materials, including stainless steel, carbon steel, titanium and copper alloys, etc. The corrosion resistance of the industry has greatly increased. Laser w...
阅读全文

EVERYTHING YOU CAN KNOW ABOUT HEAT EXCHANGER

-
图片
  A heat exchanger is a device designed to transfer heat between two or more fluids with different temperatures (ie liquid, vapor or gas). Depending on the type of heat exchanger used, the heat transfer process can be gas-to-gas, liquid-to-gas or liquid-to-liquid and takes place through a solid separator that prevents fluid mixing or direct fluid contact. Other design features, including building materials and components, heat transfer mechanisms, and flow configuration, also help to classify the types of heat exchangers available. After discovering applications in a wide range of industries, we designed and manufactured a variety of heat exchange equipment used in heating and cooling processes. This article focuses on heat exchangers, exploring various available designs and types, and explaining their respective functions and mechanisms. In addition, this article outlines the selection considerations and common applications of each type of heat exchange equipment. Heat Exchanger t...
阅读全文