Plate-fin heat exchanger of transformer and manufacturing method for plate-fin heat exchanger
A technology of plate-fin heat exchanger and transformer, applied in the field of transformer oil cooling, can solve the problems of high equipment cost and operating cost, large equipment volume, large space occupied, etc., to improve corrosion resistance, energy saving effect, maintenance handy effect
Active Publication Date: 2012-02-22
SHANGHAI DONGRUN HEAT EXCHANGE EQUIP MFG
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Problems solved by technology
[0005] In order to solve the defects of low heat exchange efficiency of existing heat exchange devices, large equipment volume, uncompact structure, large space occupation, large material consumption, large investment, resulting in relatively high equipment costs and operating costs
Method used
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Embodiment Construction
[0025] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in conjunction with illustrations and specific embodiments.
[0026] like figure 1 , figure 2 As shown, the transformer plate-fin heat exchanger proposed by the present invention includes a liquid inlet flow pipe 110 and a liquid outlet flow pipe 120, and the liquid inlet flow pipe 110 and the liquid outlet flow pipe 120 are connected by heat exchange fins 200, and the heat exchange fins The inside of 200 is provided with a liquid flow channel for transformer oil to pass through. The liquid flow channels are arranged in parallel. The gas flow channel and the heat exchange fins 200 are arranged in parallel between the liquid inlet flow pipe 110 and the liquid outlet flow pipe 120 , and the heat exchange fins 200 are connected and fixed by the reinforcing plate 300 .
[0027] Specifically...
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The invention discloses a plate-fin heat exchanger of a transformer. The plate-fin heat exchanger comprises a liquid inlet flow pipe and a liquid outlet flow pipe, wherein the liquid inlet flow pipe and the liquid outlet flow pipe are connected by a group of heat exchange sheets; liquid flow channels, through which transformer oil passes, are arranged in the heat exchange sheets; the liquid flow channels are parallel to one another; two ends of each liquid flow channel are communicated with inner parts of the liquid inlet flow pipe and the liquid outlet flow pipe respectively; air flow channels which are parallel to one another are arranged on the external parts of the heat exchange sheets; and the heat exchange sheets are arranged between the liquid inlet flow pipe and the liquid outlet flow pipe in parallel. A manufacturing method for the plate-fin heat exchanger comprises the following steps of: manufacturing stamping steel plates and rectangular fins; coating an aluminum-coated layer on the surface of each stamping steel plate; welding and sealing edges of two stamping steel plates; arranging the rectangular fins in parallel and then fixing the rectangular fins on the surface of a base plate to form heat exchange sheets; connecting and fixing the heat exchange sheets by a reinforcing plate; connecting two ends of each heat exchange sheet and the liquid inlet flow pipe and the liquid outlet flow pipe respectively; integrally assembling; and performing pressure tests to obtain the finished plate-fin heat exchanger.
Description
technical field [0001] The invention relates to transformer oil cooling technology, in particular to a transformer plate-fin heat exchanger and a manufacturing method thereof. Background technique [0002] The development and manufacturing technology of new high-efficiency heat exchangers has always been a hot spot in the field of energy utilization, which is directly related to the energy utilization rate of chemical, electric power, petrochemical and other industries. [0003] At present, for heat exchangers in chemical industry, electric power, petrochemical industry, power machinery and other industries, there are also a large number of plate heat exchangers. Water is used as the heat transfer medium in the fluid channel, and heat conduction and convection heat exchange are realized through the substrate and the outside air. The advantage is that it is easy to design and manufacture, but the disadvantage is that the heat exchange effect is poor, the equipment is bulky, t...
Claims
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IPC IPC(8): H01F27/12F28D1/03F28F3/12B23P15/26
Inventor 茅文焯茅忠萍杨惠康邱燃
Owner SHANGHAI DONGRUN HEAT EXCHANGE EQUIP MFG