One ton of high temperature and high pressure steam can generate more than 300 degrees for large units over 300,000 kilowatts, 250 degrees for 100,000 kilowatt units and less than 200 degrees for small units.
Also known as “water vapor”. Different types of steam are classified according to pressure and temperature: saturated steam, superheated steam. The main uses of steam include heating/humidification; it can also produce electricity; it can be used as a machine motor, etc.
The upper limit of water vapor temperature depends on two factors:
1. Conversion to supercritical fluid
Water must be above the critical pressure and temperature at the same time. The point at which it will transform into a supercritical fluid is 374°C at 218 atmospheres. However, at atmospheric pressure, water vapor can rester in the gaseous state at several thousand degrees.
2. Thermal decomposition of water
It is said to require a temperature above 5000°C, which requires a series of thermodynamic calculations. The hydrogen-oxygen flame during hydrogen-oxygen combustion can reach 2,500-3,000°C. Combustion at this temperature always generates water, which means that water will hardly decompose at this temperature.
Check the amount of heat needed to convert a ton of water into steam. Calculate the amount of heat generated by burning one ton of natural gas by heating more than ten tons of water. degrees Celsius in saturated steam (198 degrees). 8.4 × 10^7 J/cubic meter, natural gas is usually measured in cubic meters. Check the efficiency of the steam boiler, usually 65% to 70%. 1 ton/hour boiler = 600,000 kcal/hour = 600,000 kcal of heat, 600,000 kcal divided by 90% thermal efficiencyue of the boiler (general efficiency of oil and gas furnaces) = 666,666 kcal (calorific value) The calorific value of natural gas is generally 8,500 Kcal/per cubic meter: 666,666 divided by 8,500 = 78 cubic meters. The above shows that a 1T gas boiler requires 78 cubic meters per hour, which is then multiplied by the unit price of natural gas per cubic meter. is 4.28 yuan/cubic meter x 78 cubic meters = 333 yuan. It is calculated like this: According to the steam thermal parameters table, use the inlet and outlet pressure and temperature to find out the enthalpy values h in and h out of working conditions, the mass flow rate of steam X (h in - h out) X turbine efficiency = 4.186 Mass flow rate is what you call steam consumption. The electricity consumption of oil and gas boilers is not very high, around 2 kW for those powered by coal and that for heating.electrical power is greater than 700 kW. For the same ton of steam, the power generation capacity is also different due to. different pressures and superheat temperatures. A ton of steam can generate about 340 degrees of electricity. Around 720KW. The operating cost of electric boilers is relatively high. It is recommended to use a gas steam boiler. Running costs are much lower than electric boilers. And it’s also environmentally friendly. This depends on the steam consumption rate of your unit. For example, if the steam consumption rate is 4 kg/kWh, then the electricity production is 84,166 degrees and the steam consumption is 21,042 kg, which is approximately 21 tons of main steam. How many kilowatt hours of electricity does a boiler need to produce a ton of steam? Testing and instrumentation of the power plant boilerctric are completed. The Power Equipment Department tested it and found that it uses 10 tons/hour of 50-57.degree steam/ton of steam.