Thermal shock testing device

Abstract

PURPOSE: To reduce the amount of frost sticking on a cooler, etc., arranged in a precooling chamber by supplying dry air which is obtained by reducing the moisture of outside air by a dehumidifier to a test chamber through the opening operation of an opening/closing valve which is associated with a room-temperature damper when the outside air is introduced to the test chamber through the opening operation of the room-temperature damper. CONSTITUTION: An outside air intake port 2 and a discharge port 3 which are linked with the outside air are provided to the test chamber 1 of the thermal shock testing device and those intake port 2 and discharge port 3 are opened and closed by the room-temperature damper 4. This chamber is provided with a preheating chamber 9 where a heater 6 and a fan 7 are arranged and the precooling chamber 14 where a cooler 11 connected to a refrigerator 10 and a fan 12 are arranged adjacently across a heat insulating partition wall 5. Further, an opening part 15 which links the chamber 1 and preheating chamber 9 with each other is opened and closed by a high-temperature damper 16 and an opening part 17 which links the chamber 1 and precooling chamber 14 is opened and closed by a low-pressure damper 18. Further, the dehumidifier 21 composed of a cooler 19 connected to the refrigerator 10 and a reheater 20 is arranged on the outside intake side of the intake port 2 and the opening/ closing valve 22 which is opened and closed according to the operation of the damper 4 is arranged in the connecting circuit for the refrigerator 10. COPYRIGHT: (C)1990,JPO&Japio

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Cited By (3)

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    CN-103439993-ADecember 11, 2013广州国技试验仪器有限公司加热通道和制冷通道共用鼓风电机的试验箱
    JP-2007183126-AJuly 19, 2007Espec Corp, エスペック株式会社熱疲労評価方法、並びに、熱疲労評価装置
    JP-2010271233-ADecember 02, 2010Espec Corp, エスペック株式会社Environmental testing apparatus