Integrated Dehumidification Method and System Combining Boundary Layer Control with Mainstream Disturbance Enhanced Heat Exchange

Abstract

An integrated dehumidification method and system that combines boundary layer control with mainstream disturbance enhanced heat exchange; a boundary layer flow control device is arranged on the flow boundary layer; and a mainstream disturbance device is arranged on the main runner to realize adequate heat exchange. An integrated dehumidification system that combines boundary layer control with mainstream disturbance enhanced heat exchange, wherein numerous boundary layer flow control devices are longitudinally arranged parallel near the vane on the refrigerating terminal adjacent to all the wall surfaces; a mainstream disturbance device is arranged on the main flow runner; the vane on the heating terminal is in the same arrangement. It achieves integrated, smooth and efficient heat exchange, presenting a novel method and system for enhanced heat transfer. The multi-channel dehumidification can improve the treatment efficiency greatly.

What is claimed is: 
     
         1 . An integrated dehumidification method combines boundary layer control with mainstream disturbance enhanced heat exchange, characterized in that it forms axial periodical eddy currents along the flow channel through the arrangement of boundary layer flow control devices on the boundary layer so as to facilitate air contact with the cooling and heating side walls; in one aspect, it overcomes the boundary layer's adverse effect on heat exchange, also, it rapidly transfers the differential temperatures generated by the cooling and heating side walls to the mainstream flow. 
     
     
         2 . The integrated dehumidification method combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 1 , characterized in that the mainstream disturbance device is arranged within the mainstream airflow channel; the eddy current along the mainstream channel is coordinated with the flow from the boundary layer under the effect of the mainstream disturbance device. This rapidly transfers cooling and heating capacity from the boundary layer to the whole field to form a uniform temperature field, and improves cold and heat exchange efficiency inside the flow channel. 
     
     
         3 . The integrated dehumidification method combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 1 , characterized in that the boundary layer flow control device is a disturbance cylinder in axial arrangement along the flow channel on the boundary layer. 
     
     
         4 . The integrated dehumidification method combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 2 , characterized in that the mainstream disturbance device is a group of delta or oval or circular wings in axial arrangement along the flow channel on the main runner. 
     
     
         5 . An integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange, comprising an insulating case ( 1 ), a semiconductor thermoelectric device ( 2 ) in the insulating case ( 1 ), which is characterized in that the semiconductor thermoelectric pair ( 2 ) comprises a cold end ( 3 ) below and a hot end ( 4 ) above; vane assembly on the refrigerating terminal ( 5 ) is connected below the cold end ( 3 ); upstream side of the vane assembly on the refrigerating terminal ( 5 ) is connected with an air inlet ( 6 ); a catchment trough ( 7 ) is arranged below the vane assembly on the refrigerating terminal ( 5 ); a drain ( 8 ) is provided below the catchment trough ( 7 ); vane assembly of heating terminal ( 9 ) is connected above the hot end ( 4 ); downstream end of the vane assembly on the heating terminal ( 9 ) is connected with the air vent ( 10 ); the vane assembly on the refrigerating terminal ( 5 ) comprises at least two vanes on the refrigerating terminal ( 11 ) arranged longitudinally; the vane assembly on the heating terminal ( 9 ) comprises at least two vanes on the heating terminal ( 14 ) arranged longitudinally; the vane on the refrigerating terminal ( 11 ) is provided with at least one boundary layer flow control device ( 12 ) longitudinally arranged adjacent to the wall surface. 
     
     
         6 . The integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 5 , characterized in that at least one mainstream disturbance device ( 15 ) is longitudinally arranged at the center of the vane on the refrigerating terminal ( 11 ). 
     
     
         7 . The integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 5 , characterized in that the said boundary layer flow control device ( 12 ) is a turbulence inducing cylinder in axial arrangement along the flow channel. 
     
     
         8 . The integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 6 , characterized in that the said mainstream disturbance device ( 15 ) is a triangular or oval or circular vane in axial arrangement along the flow channel. 
     
     
         9 . The integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 5 , characterized in that the longitudinal section of the said vane on the refrigerating terminal ( 11 ) is of trapezoidal profile. 
     
     
         10 . The integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 5 , characterized in that the cross section of the said vane on the refrigerating terminal ( 11 ) is ‘W’ shape. 
     
     
         11 . The integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 10 , characterized in that a screen mesh ( 13 ) is provided on the surface of the vane on the refrigerating terminal ( 11 ). 
     
     
         12 . The integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 5 , characterized in that the said vane on the heating terminal ( 14 ) is provided with a boundary layer flow control device ( 12 ) longitudinally at the position adjacent to the wall surface. 
     
     
         13 . The integrated dehumidification system combines boundary layer control with mainstream disturbance enhanced heat exchange according to  claim 5 , characterized in that at least one mainstream disturbance device ( 15 ) is longitudinally arranged at the center of the channel on the heating terminal ( 14 )