METHOD OF INCREASING THE STEAM GENERATOR OPERATION EFFICIENCY AND DEVICE FOR ITS IMPLEMENTATION Russian patent published in 2018 - IPC F22B1/06 F22D1/12 

FIELD: machine building.

SUBSTANCE: invention relates to the power machine building and cryogenic systems, and can be used in steam generating systems and devices. Specified tasks in the coolant operation efficiency and flow stability increasing method, consisting in the fact, that the working medium is pumped through the heat exchanger channels internal cavity, and the heat is supplied to the channels outer wall, are solved by the fact that the working medium vapor and gas phases are evacuated from the boundary layer along the economizing section length, and directed to the outlet line, located downstream the heat exchanger channel outlet hydraulic resistance, and also by the fact that along the heat exchanger economizer section length, increasing the evacuation efficiency from the working fluid vapor and gas phases boundary layer from the inlet to the outlet and the fact, that the working fluid vapor and gas phases evacuation efficiency from the boundary layer at the heat exchanger economizer section is changed depending on the heat load, at that, measuring the wall temperature from the heating medium side at the heat exchanger economizer section, depending on which changing the boundary layer evacuation efficiency. Specified tasks in the device for increasing the coolant efficiency and flow stability in the steam generator containing heat exchanger with inlet and outlet hydraulic resistances, are solved by the fact that the heat exchanger channels economizer section is provided with openings for the working fluid vapor and gas phases removal from the boundary layer, which are connected to the pump inlet, and its outlet is connected to the output line downstream of the heat exchanger channel outlet hydraulic resistance, and also in that the working fluid vapor and gas phases removal from the economizer section openings dimensions increase along its length from the inlet to the outlet, besides along the economizer section length in the direction perpendicular to the working fluid movement, on the heat exchanger channel internal loop the connected volumes are located for the working fluid vapor and gas phases collection from the boundary layer, at that, the working fluid vapor and gas phases removal openings are located in the connected volumes, in that the connected volumes and working fluid vapor and gas phases from the economizer section removal openings dimensions increase along its length from the inlet to the outlet, in that on the heat exchanger channel economizer section outer of the wall the temperature sensor is arranged, through the controller connected to the control unit of pump for the working fluid vapor and gas phases evacuation from the heat exchanger economizer section boundary layer, by the fact that between the vapor and gas phases from the boundary layer at the economizer site removal openings the pump inlet at least one adjustable throttle is installed, connected to the control unit, and that as the pump the ejector pump is used.

EFFECT: increase in the coolant operation efficiency and flow stability in the steam generating channels.

10 cl, 4 dwg