| 摘要 |
A protection system for a heat transfer oil boiler (13, fig.3) comprises a high-level tank 2 with a vent 1, an oil-gas separator 3, and at least one oil storage vessel 4 connected in series between the high-level tank and the oil-gas separator. The oil storage vessel may comprise an enclosed cylindrical container with a vent (7, fig.2) at the top and a drainage pore (8, fig.2) at the bottom. Preferably, an oil inlet pipe 5 is located in the upper part of the oil storage vessel and an oil outlet pipe 6 is located in the lower part of the oil storage vessel. The opening (5a, fig.2) of the oil inlet pipe may be in the form of an inverse trapezoid; the opening (6a, fig.2) of the oil outlet pipe may be in the form of a trapezoid. Preferably, three oil storage units are provided, where all the vents are arranged in parallel to form a master exhaust pipe 9 incorporating a valve 10 and all the drainage pores are arranged in parallel to form a master drainage pipe 11 incorporating a valve 12. |
