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Three Highs Vacuum Tube
Three Highs Vacuum Tube
  • Model Number:
    JJR-11

  • Description:
    Three Highs Vacuum Tube
    Glass material
    High borosilicate 3.3 glass
    All-glass double-tube co-axial structure
    External pipe diameter and thickness
    Φ=47 add or subtract 7mm &=1.6mm
    Φ=58 add or subtract 7mm &=1.6mm
    Φ=70 add or subtract 7mm &=2.0mm
    Internal pipe diameter and thickness
    Φ=37 add and subtract 7mm &=1.6mm
    Φ=47 add or subtract 7mm &=1.6mm
    Φ=58 add or subtract 7mm &=2.0mm
    Pipe length
    800mm 1200mm 1500mm 1600mm
    1800mm 1900mm 2000mm 2100mm
    		Structure
    Cu/SS-ALN(H)/SS-ALN(L)/ALN
    Absorbing coating property
    Sediment method
    3 target magnertron sputtering plation
    Specific absorption
    as=0.93~0.96(AM1.5)
    Emission ratio
    εh=0.04~0.06(80℃ add or subtract 5℃)
    Vacuum tightness
    		 P≤5.0X10-3Pa
    Idle sunning property parameters
    Y=260~300m2.℃/KW
    Solar irradiation for obtaining a preset water temperature
    		 H≤4.7MJ/m2(Φ58)
    H=3.7~4.2MJ/m2
    H≤3.7MJ/m2(Φ47) H=2.9~3.2MJ/m2
    Average heat loss coefficient
    ULT=0.4~0.6W/(m2.℃)
    Structure
    Glass material
    High borosilicate 3.3 glass
    External pipe diameter and thickness

    Φ=47 add or subtract 7mm &=1.6mm
    Φ=58 add or subtract 7mm &=1.6mm
    Φ=70 add or subtract 7mm &=2.0mm
    Internal pipe diameter and thickness

    Φ=37 add or subtract 7mm &=1.6mm
    Φ=47 add or subtract 7mm &=1.6mm
    Φ=58 add or subtract 7mm &=1.6mm
    Pipe length
    800mm 1200mm 1500mm 1600mm
    1800mm 1900mm 2000mm 2100mm
    Absorbing coating property
    Structure
    AL/AL-CU-SS
    Sediment method
    Three targets magnertron sputtering plating
    Spectific absorption
    as=0.90~0.93(AM1.5)
    Emission ratio
    εh=0.05~0.075(80℃ add or subtract 5℃)
    Vacuum tightness
    P≤5.0X10-3Pa
    Idle sunning property parameters
    Y=220~260m2.℃/KW
    Solar irradiation for obtaining a preset water temperature
    H≤4.7MJ/m2(Φ58)
    H=4.1~4.4MJ/m2
    H≤3.7MJ/m2(Φ47)
    H=3.1~3.4MJ/m2
    Average heat loss coefficient


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