12 ton boiler drawing, part of which is described as follows: 1. Operation mode: intermittent heating, water supply temperature 95 ° C, return water 70 ° C 2. Constant pressure mode The heating system of the boiler room is a high level expansion water tank with constant pressure. The expansion pipe is connected to the return water pipe at the inlet of the circulating water pump. When the water level in the expansion water tank is 200 mm from the bottom of the water tank, the make-up pump starts to supplement water to the system, and the water level in the expansion water tank rises, When the water level rises to 200 mm from the top of the water tank, the make-up pump stops. When the water level in the softened water tank is 200 mm from the bottom of the water tank, the solenoid valve opens, and the softener replenishes water to the softened water tank.
Drawings include: design description, flow chart, heating system diagram, equipment plan, section, etc
