Evaporator
An evaporator and outer layer technology, applied in evaporator/condenser, heat exchange equipment, refrigeration components, etc., can solve the problems of affecting the cooling effect, easy welding leakage or false welding, easy corrosion and perforation, etc., and achieve excellent heat transfer Performance, the effect of saving copper
Inactive Publication Date: 2014-01-15
李燕
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Problems solved by technology
Due to the high cost of copper pipes, they are mostly replaced by copper-plated steel pipes, galvanized pipes or aluminum pipes, and the appealing substitutes are very easy to corrode and perforate, resulting in internal leakage, resulting in the scrapping of the entire product; copper-plated steel pipes, galvanized pipes in In the bonding with aluminum foil, it is hard and easy to warp, causing the foam material to isolate the evaporator pipe, which affects the cooling effect; when making the evaporator, copper-plated steel pipes, galvanized pipes, and copper pipes such as capillaries or return air pipes are welded. It is necessary to use electrodes containing more than 25% silver and add flux, which is prone to solder leakage or false soldering, and the cost is high
Method used
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Experimental program
Comparison scheme
Effect test
Embodiment
[0009] An evaporator includes a row pipe, the outer layer of the row pipe is oxygen-free copper, and the inner layer is a copper-aluminum composite pipe made of aluminum.
[0010] Preferably, the specific gravity of the row tube is 1 / 3 of that of the copper tube.
[0011] In the evaporator provided in the above embodiments, the copper-aluminum composite tube is soft and easy to form, and it is not easy to warp when the evaporator tube and the inner tank are bonded with aluminum foil, so as to ensure the tight contact between the evaporator and the inner tank and improve thermal conductivity.
[0012] Tin welding is used when copper-aluminum composite pipes are welded with other products. Tin welding requires a low temperature of the torch flame, good fluidity of tin, easy operation, and is not easy to weld leakage and false welding.
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The invention relates to an evaporator. The evaporator comprises a discharging pipe, wherein the outer layer of the discharging pipe is made of oxygen-free copper, and the inner layer of the discharging pipe is made of aluminum. The evaporator can replace a copper pipe, thereby saving copper materials by more than 75%, the oxygen-free copper is resistant to corrosion, and the problem of inside leakage of a refrigeration system caused by rusting of pipelines is resolved. The discharging pipe has good heat conduction performance, and the whole machine energy efficiency ratio of the evaporator is higher than that of a Bundy pipe or a galvanized pipe or an aluminum pipe by 3%-5%.
Description
technical field [0001] The invention relates to an evaporator. Background technique [0002] In the refrigerator and freezer (kitchen cabinet) manufacturing industry, the evaporator, the core component of the product's refrigeration system, is made of copper tubes, Bondi tubes, galvanized tubes or aluminum tubes. Due to the high cost of copper pipes, they are mostly replaced by copper-plated steel pipes, galvanized pipes or aluminum pipes, and the appealing substitutes are very easy to corrode and perforate, resulting in internal leakage, resulting in the scrapping of the entire product; copper-plated steel pipes, galvanized pipes in In the bonding with aluminum foil, it is hard and easy to warp, causing the foam material to isolate the evaporator pipe, which affects the cooling effect; when making the evaporator, copper-plated steel pipes, galvanized pipes, and copper pipes such as capillaries or return air pipes are welded. It is necessary to use electrodes containing mor...
Claims
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Patent Timeline
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Inventor 李燕
Owner 李燕