Technical re-equipment of the system of automatic regulation (SAR) for the temperature of superheated steam control of TGM-84 boilers No. 1, No. 2, No. 3, No. 4

Equipment used, specifics of works provided

1.The automatic control system (ACS) for superheated steam temperature control of the TGM-84 boiler st. No. 1–4 includes:

• cabinet of the automatic control system of the boiler K-1 (ACS K-1), SCS K-1, IP65, ~220/=24 V, 50 Hz In=25A, Ix=6 kA, order No. 15599;
• cabinet of normal converters, ШПН-1, IP65, ~220/=24 V, 50 Hz I=4A, Ic=6 kA, serial No. 15590;
• manual control unit, type BRK-10-3-3-3-0.75-24. Microl;
• operator touch panel 12.1″, SVGA-TFT, 24V, DC, art. HMIGTO6310, Schneider Electric;
• two-way pressure-relief control valve. Type number RV701 ERM 4151 RO complete with Regada ST(R)2 electric actuator (LDM, Regada);
• temperature sensor “ТХА-ХА” – PST ТХА-002б-К-И2-160-Р3/-40..+.

2. Special conditions of work performance are: welding of elements (pipes, fittings, beans and valves ‘before’) of category I steam pipelines with operating parameters P=15.5 MPa, T=535°C from low-alloyed chromium-molybdenum steels (12Х1МФ).

3. Welding technology involves heat treatment of welded joints.