A closed air duct structure for enhanced heat exchange
A heat-enhancing, closed-circuit technology, used in applications, household appliances, household refrigeration devices, etc., can solve the problems of poor overall performance, low sensitivity, complex structure, etc., to improve the convective heat transfer surface heat transfer coefficient, Strong practicality in operation and the effect of strengthening heat exchange effect
Inactive Publication Date: 2017-01-18
XI AN JIAOTONG UNIV
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[0032] The present invention is described in further detail below in conjunction with accompanying drawing:
[0033] see figure 1 , a closed air duct structure for strengthening heat exchange in the present invention, including a back-shaped closed air duct 24, in which a cooling element 25, a heat exchanger 26 and a fan 28 are arranged, and Inside the closed air duct 24 in the shape of a zigzag, there is formed a gas flow inner circulation of: cooling element 25—fan 28—heat exchanger 26—radiating element 25. The low-pressure air passage area 27 is formed in the closed air duct 24 by the suction force of the blower fan 28. An air supply device 29 is arranged on the outer wall of the air passage corresponding to the low-pressure air passage area 27. The air inlet of the air supply device 29 passes through the air passage. The hole that the road outer wall offers communicates with the closed air duct 24.
[0034] In the closed air channel structure for strengthening heat excha...
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The invention discloses a closed type air duct structure for heat exchange enhancement, and belongs to technical field of heat exchange equipment. The closed type air duct structure comprises a closed air dust which takes the shape of a rectangular ambulatory plane, wherein a heat radiation element, a heat exchanger and a fan are arranged inside the closed air duct; a low-pressure air duct area is formed inside the closed air dust through the sucking force of the fan; an air supply device is arranged on the outer wall of the air dust corresponding to the low-pressure air duct area; the air outlet cavity of the air supply device is communicated with the closed air duct through a hole in the outer wall of the air dust. As the low-pressure air duct area is formed inside the closed air dust through the sucking force of the fan, and the air supply device is arranged on the outer wall of the air dust corresponding to the low-pressure air duct area, air can be replenished to the air duct, the density of a heat exchange medium can be increased by increasing the pressure of the heat exchange medium flowing through a heat exchange tube of a heat exchanger inside the air duct, the heat transmission coefficient of a convective heat transfer surface on the outer side of the heat exchanger can be increased, the heat exchange effect inside the closed air duct can be effectively improved, the efficient operation of a heat radiation equipment machine set can be ensured, the service life of the heat radiation equipment machine set can be prolonged, and the security reliability of the heat radiation equipment machine set can be improved.
Description
technical field [0001] The invention belongs to the technical field of heat exchange equipment, and relates to a closed air channel structure for strengthening heat exchange, in particular to a closed air channel structure with an air replenisher. Background technique [0002] Heat dissipation components are often used in industrial equipment to indirectly transfer heat to the environment outside the equipment. In some occasions, in order to control parameters such as the composition of the heat exchange gas medium, a closed air duct is required. The heat exchanger is set in the closed air duct to collect the heat released by the cooling elements of the equipment, and take the heat away through the working fluid of the heat exchanger. The heat exchange effect of the heat exchanger is directly related to the efficient operation of the equipment unit as well as its service life, safety and reliability. The heat transfer performance of closed air duct heat exchangers is incre...
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IPC IPC(8): F25D17/06
CPCF25D17/06
Inventor 邓建强叶芳华侯雄坡
Owner XI AN JIAOTONG UNIV