Passive collaborative vibration enhanced evaporation heat exchange tube

Abstract

The invention provides a passive collaborative vibration enhanced evaporation heat exchange tube. Multiple groups of through holes are formed in the wall surface of the heat exchange tube at equal intervals, a sealing sleeve is in coupling connection with the through holes, and an upper gasket is located at the upper end of the sealing sleeve; the hot ends of a P-type element and an N-type element are connected with the upper gasket, the cold ends of the P-type element and the N-type element are respectively connected with one sides of a left conductive copper sheet and a right conductive copper sheet, and the other sides of the left conductive copper sheet and the right conductive copper sheet are respectively connected with a positive electrode and a negative electrode of a rotor; the front end of the rotor is sleeved with an eccentric wheel, and a heat-conducting sealing ring is located at the lower end of the sealing sleeve; and a fixing frame fixedly connected with the sealing sleeve is arranged on the outer side of the rotor. The passive collaborative vibration enhanced evaporation heat exchange tube has the beneficial effects that when the heat exchange tube is heated, the hot ends of the P-type element and the N-type element are in a high-temperature environment, the cold ends of the P-type element and the N-type element are in a low-temperature environment, temperature difference electromotive force is formed, and the electromotive force promotes the eccentric rotor to work and excites fluid and wall surface vibration through the conductive copper sheets, so that disturbance is generated, the field cooperation degree is improved, and convective heat transfer is enhanced.

Description

technical field [0001] The invention relates to the technical field of heat exchangers, in particular to a passive cooperative vibration enhanced evaporation heat exchange tube. Background technique [0002] As the main component of heat transfer, evaporative heat exchange tubes are widely used in nuclear power, petrochemical, metallurgy, air conditioning and refrigeration industries. In this industry, improving heat exchange efficiency can optimize heat exchange equipment, reduce the weight and volume of heat exchange equipment, and achieve energy saving While being environmentally friendly, it can also reduce investment and operating costs. [0003] The tube wall vibration and fluid vibration of evaporative heat exchange can disturb the flow field and temperature field of the fluid, make the boundary layer thinner, reduce the angle between the velocity vector and the temperature vector, and improve the coordination degree of the fluid velocity field and temperature field, ...

AI Technical Summary

Problems solved by technology

At the same time, the long-term use of evaporative heat exchange tubes will gradually form a layer of dirt on the wall, and the presence of dirt will greatly reduce the heat transfer coefficient.

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