A method for starting an intermediate-pressure cylinder device using adjacent steam for a unit system unit
A unit system and unit technology, applied in the direction of engine starting, machine/engine, mechanical equipment, etc., can solve the problems of uncoordinated maintenance schedule of steam turbine boilers, adjacent units cannot be switched to each other, and units can only be shut down. To achieve the effect of simple and convenient starting method, high economy and reliability, and easy automatic control
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Embodiment 1
[0036] Embodiment 1: A device for starting the medium-pressure cylinder with the steam source of the adjacent unit of the unit system, the transformation steps are as follows:
[0037] (1) Remove the check gate spool from the reheating and cooling section of No. 1 unit to the auxiliary steam header of No. 1 unit;
[0038] (2) Remove the reheating and cooling section of No. 1 unit to the electric adjustment door of the auxiliary steam header of No. 1 unit, and use short pipes to short-circuit;
[0039] (3) Remove the reheating and cooling section of No. 2 unit to the electric adjustment door of the auxiliary steam header of No. 2 unit, and short-circuit it with a short pipe;
[0040] (4) Set the electric door switch of the reheating and cooling section of No. 2 unit to the auxiliary steam header of No. 2 unit as pulse electric for 5 seconds;
[0041] (5) All other original piping systems remain unchanged, the auxiliary steam header of No. 1 unit is connected with the auxiliary s...
Embodiment 2
[0043] Embodiment 2: A method for starting the medium-pressure cylinder starting device with the steam source of the adjacent machine of the unit system unit, using a steam source of the adjacent machine of the unit system unit to start the medium-pressure cylinder starting device, the steps include the following:
[0044] (1) Inject water into the circulating water system of No. 1 unit, open the connecting door of the circulation pump outlet of Units 1 and 2 to 50%, use the circulation pump of Unit 2 to supply circulating water to Unit 1, and open the bypass door of the open water pump For the hydrogen cooler, closed water cooler, and stator cooling water cooler of Unit 1, inject water and discharge air, and perform pump interlock test of Unit 1 at the same time to restore standby;
[0045] (2) Inject water into the stator cooling water system of unit 1, and start a cooling water pump;
[0046] (3) Condenser water replenishment to normal water level 800~1000mm;
[0047] (4) ...
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