| 摘要 |
<p>A refrigerating capacity control device, and a test apparatus and a refrigerating capacity control method using the device. The refrigerating capacity control device comprises a compressor (2), a condenser (5), an evaporator (7), a controller (1), a pressure regulating valve (4), a throttling device (6), a control panel (13) for driving a hot-gas valve, and a hot-gas valve (11). The controller is connected with the hot-gas valve (11) through the control panel (13) for driving a hot-gas valve; the pressure regulating valve (4) is disposed between an outlet of the compressor (2) and an inlet of the condenser (5) that are arranged in the refrigerating device; the throttling device (6) is disposed between an outlet of the condenser (5) and an inlet of the evaporator (7); one end of the hot-gas valve (11) is disposed on a pipeline between the outlet of the compressor (2) and the front end of the pressure regulating valve (4), and the other end thereof is disposed on a pipeline that is between the throttling device (6) and an inlet of the evaporator (7).</p> |
