Hello everyone, today we are going to talk about micro-channel aluminum flat tube, what is micro-channel aluminum flat tube, please see the following:
Micro-channel aluminum flat tube, also known as "parallel flow aluminum flat tube", is a thin-wall porous flat tube of high efficiency heat exchanger material, with excellent thermal conductivity and good corrosion resistance, currently mainly used in a variety of automobiles, air conditioners, refrigerators and other systems, is carrying new environmentally friendly refrigerant pipe parts, is also a new type of high efficiency heat exchanger material.
According to the type, the microchannel heat exchanger can be divided into micro microchannel heat exchanger and large scale microchannel heat exchanger according to the external size.
Micro-channel heat exchanger is a kind of compact, lightweight and efficient heat exchanger designed to meet the needs of the development of electronic industry. Its structural forms include flat cross-flow micro-heat exchanger and sintered mesh porous micro-heat exchanger.
Large-scale microchannel heat exchanger is mainly used in traditional industrial refrigeration, waste heat utilization, automobile air conditioning, household air conditioning, heat pump water heater, etc. Its structure forms are parallel flow tube radiator and three - dimensional cross - flow radiator. Due to the large external size (up to 1.2m×4m×25.4mm[13]), the hydraulic diameter of the microchannel is less than 0.6-1mm, so it is called the large-scale microchannel heat exchanger.
Characteristics and structure of micro-channel aluminum flat tube:
The inside of the micro-channel aluminum flat tube is composed of multiple micro-channels, which are in various forms such as rectangle, triangle and circle. The width of the channel is usually less than 0.5mm. The inside of the micro-channel aluminum flat tube is specially treated to form a uniform alumina protective layer and improve the corrosion resistance. At the same time, the wall thickness of the micro-channel aluminum flat tube is generally less than 0.2mm, and the heat conduction performance is high.
The application fields of microchannel tube are as follows:
1. Automotive industry: microchannel aluminum tubes are widely used in evaporators and condensers in automotive air conditioning systems. Compared with the traditional copper tube and aluminum tube, the micro-channel aluminum flat tube has better heat conduction performance, can achieve faster cooling effect, and can also reduce the weight and space occupied by the system.
2. Air conditioning field: micro-channel aluminum flat tube is also widely used in evaporator and condenser of air conditioning system. Compared with traditional copper tube and aluminum tube, micro-channel aluminum flat tube can improve the heat exchange efficiency of the system and reduce the energy consumption and operating cost of the system.
3. Refrigerator field: the micro-channel aluminum flat tube is applied to the condenser and evaporator in the refrigerator. Compared with the traditional copper tube and aluminum tube, it can improve the refrigeration effect, reduce energy consumption and noise, and also reduce the volume and weight of the refrigerator.
4. Electronic equipment: the micro-channel aluminum flat tube is also used in the radiator of electronic equipment. Compared with the traditional copper tube and aluminum tube, the micro-channel aluminum flat tube can improve the heat dissipation efficiency, reduce the temperature rise of the equipment, so as to extend the service life of the equipment.
Processing method:
With the continuous improvement of micro-machining technology, efficient micro-heat exchangers with flow channel depth ranging from several microns to hundreds of microns can be fabricated. Such micromachining technologies include lithography, chemical etching, lithography electroforming injection molding (LIGA), diamond cutting, wire cutting and ion beam processing. Sintered mesh type porous micro heat exchanger is made of powder metallurgy. The processing of microchannels at large scale is significantly different from the processing of microchannels at micro scale, and the former requires more efficient processing and manufacturing technology.
In addition, with the continuous development and progress of modern equipment, we can also customize different specifications and models of micro-channel aluminum flat tubes to meet the different needs of customers. With the continuous improvement and development of manufacturing technology, the application of micro-channel aluminum flat tube will be more and more extensive, providing more efficient and reliable solutions for thermal management problems in all walks of life.
