1t / h ammonia evaporator specification
1. Ammonia evaporation: 1t / h
Evaporation pressure: 0.405MPa
Evaporation temperature: -7 ℃
The average temperature Δt = 175 - (- 7) = 168 ℃
latent heat of vaporization: 1276KJ / kg
2. Steam pressure: 0.8MPa
3. Heat load: 389.9J / s Q = 1000 * 1276 * 1.1 = 1403600KJ / h
4. Steam consumption: 688.7kg / h M = 1403600/2038 = 688.7kg / h
5. Heat exchange area: 3.2m2 A = 1403600/898/168 / 3.6 = 2.585 * 1.2 = 3.1m2
6. Design working temperature: shell side 0 ℃, pipe 175 ℃;
Working pressure: Shell 0.405MPa, pipe 0.8MPa
Design pressure: Shell 2.16MPa, tube 1.0MPa