| 摘要 |
FIELD: power industry. ^ SUBSTANCE: recirculating water supply system includes heat exchangers connected by means of straight and return water main line to reservoir - mixer equipped with cooler connected to straight main line by means of connecting pipeline to flow control and ejector the mixing chamber of which is connected to return water main line to pressure control, and nozzle part of ejector on inner surface has screw-shaped grooves connected to annular groove connected to dirt collector. At that, cooler includes vertical housing the side walls of which and sectional partitions are zigzag-shaped and form diffusers and confusers in each section, which are located relative to adjacent sections in staggered order; flow control is equipped with gate valve with speed control drive in the form of unit of powder electromagnetic couplings, and on straight water main line there is installed temperature sensor connected to temperature control containing comparing unit and setting unit; at that, comparing unit is connected to input of electronic amplifier equipped with non-linear feedback unit; output of electronic amplifier is connected to input of magnetic amplifier with rectifier the output of which is connected to speed control of gate valve drive; at that, partitions of diffusers and confusers are made from bimetal; at that, inner material of diffusers has heat conductivity coefficient which is more by 2.0 - 2.5 times than material of confusers. ^ EFFECT: invention allows providing reduction of energy consumption and maintenance of effective operation of system during continuous operation. ^ 1 dwg |
