FIELD: machine building.
SUBSTANCE: continuous feed method for gas generator atomiser, in which pressure control valve (108) and/or throttle (109) is installed in circulation line of water-coal suspension of gas generator, pressure monitoring device (PT1) is connected to water-coal suspension pump outlet (102); at that, control line of device (PT1) is connected to pressure control valve (108); water-coal suspension line between valve (104) and atomiser (105) is connected to shielding gas line through valve (110); pressure control valve (206) and/or throttle (207) is installed in drain line of oxidiser of gas generator, and pressure monitoring device indicating the pressure (PIC) is connected to outlet of valve (202) of flow regulator; at that, control line of device (PIC) is connected to pressure control valve (206), and oxidiser line between valve (204) and atomiser (105) is connected to shielding gas line through valve (208) including the following operations: 1) opening of valve (107) of water-coal suspension circulation, and closing of two valves (103, 104), adjustment of feed flow of water-coal suspension via water-coal suspension circulation line for the appropriate atomiser (105); 2) opening of valve (110) in order to ensure the supply of shielding gas to atomiser (105); 3), opening of drain valve (205) of oxidiser and closing of two valves (203, 204), adjustment of feed flow of oxidiser in drain oxidiser line for the corresponding atomiser (105); 4) opening of valve (208) in order to ensure the supply of shielding gas to atomiser (105); adjustment of pressure control valve (108) and/or throttle of hole (109) in circulation line of water-coal suspension to pressure of water-coal suspension, which exceeds working pressure of gas generator (106) by 0.05-2.5 MPa; adjustment of pressure control valve (206) and/or throttle of hole (207) in drain oxidiser line to oxidiser pressure exceeding the working pressure of gas generator (106) by 0.05-4 MPa; after it has been determined that pressure and flow parameters of water-coal suspension and oxidiser are normal and gas generator (106) operates without any failures, continuous feed of atomiser (105) is performed, and the following shall be done for that purpose: water-coal suspension circulation valve (107) is closed; two valves (103, 104) are opened; valve (110) is closed; after that, water-coal suspension is supplied to gas generator (106) through atomiser (105); drain valve (205) of oxidiser is closed; two valves (203, 204) are opened; valve (208) is closed; after that, oxidiser is supplied to gas generator (106) through atomiser (105); 8) rotation speed of water-coal suspension pump (102) and degree of flow control valve (202) opening is adjusted in order to ensure normal operating load on atomiser (105).
EFFECT: invention allows reducing the probability of emergency shutdown of gas generators and improving reliability of long service life of multi-atomiser gas generator with opposite atomisers.
4 cl, 2 dwg
