When steam is in short supply, what measures can be taken to reduce the amount of main steam used in order to keep the system running?

In the case of a full water circulation, the valve of the heater level tank can be reduced slightly to increase the pressure in the expansion tank.

What is your field of work? We are in the electrolytic zinc industry. Steam is primarily used for leaching heating, electrolytic plate cleaning, filtering and washing slag as well as temperature regulation; when there is a shortage of steam, we first reduce the consumption in those applications in the order mentioned above. In addition, the boilers are operated under positive pressure, with enhanced purification systems and heat recovery mechanisms to recover heat, and by timing adjustments to minimize steam emissions

1. Reduce the load until it reaches the minimum level. 2. Stop evaporation and resolve. 3. Still not good, perform an emergency stop.

By steam shortage, you probably mean the boiler steam supplied to the process area. In typical urea production, there is no shortage of low-pressure steam, while medium-pressure steam is generally influenced by the high-pressure drum; high pressure, in turn, depends on boiler steam. For many compressors that use steam turbines, steam shortages are quite severe. Our factory uses motor-driven compressors, so this problem does not exist. A shortage of boiler steam usually leads to a drop in the pressure of the high-pressure drum, and it also affects the medium-pressure drum. To keep the system functioning properly, it is necessary to reduce the load first, including evaporation and hydrolysis, as mentioned above. We encountered this issue only once; both plants shared the same steam supply. In our plant, the feedback rod of the control valve for the high-pressure steam drum broke, which caused the high-pressure steam drum to vent steam. This led to a shortage of steam, resulting in a situation where both plants had to reduce their steam usage

1. Reduce the system load by quickly lowering the compressor speed to prevent surging. 2. Reduce the outlet valve of the synthesis tower to lower the steam pressure on the shell side of the stripping tower, thereby saving steam. 3. If the ammonia pump is driven by a turbine, reduce its speed to save steam.

1. Reduce production load； 2. Stop recycling the dilute solution ； 3. When the temperature of the main steam pipe is sufficient, minimize the steam drain valve opening as much as possible ；