| 摘要 |
FIELD: heating. ^ SUBSTANCE: invention refers to temperature control, and namely to discharge devices of low-potential heat from systems of space vehicles. Refrigerator-emitter includes heat carrier storage and supply system, drop generator, passive drop header, transfer pump, pipelines, heaters of structural elements and heat stabilisation system. Drop generator has excitation element of acoustic vibrations and outlet grid. Slot channels of passive drop header are equipped with separate heat carrier feed lines. Each line has on-off valve and automatic flow control. Bypass circuit of transfer pump is provided with the latter as well. Automatic flow controls installed at inlets of slot channels, in bypass circuit of the pump and in drop generator circuit are connected through recording and control unit to optic sensors. Those sensors are installed in the following way: one - near the neck of drop header, the other - at some distance from the first one, which is bigger than distance between centres of drops in direction of their movement at least by five times. Opening angle of drop header is within the range of 40Ç70. The above version of the device allows quick control of total heat carrier flow rate through drop header, thus providing normal pump operation and continuous stable operation of the whole header. ^ EFFECT: stabilisation of operation of drop refrigerator-emitter as a whole, improving its reliability and efficiency. ^ 2 dwg |
