Method for draining thermal oil in a thermosolar plant, and corresponding auxiliary installation for carrying out said method

摘要

An installation for draining thermal oil in a thermosolar plant, and includes an oil tank (7), a pump assembly (6), a depressor or suction assembly (8), lines for communication with valves (11, 21), and a valve assembly for opening/closing the passage between the separate elements, with the lines for communication with the valves (11, 21) including pairs of pipes of the closed loop or branches (3, 4) that do not have valves on the free end thereof, with the installation operated by sweeping the separate circuits that form the installation by driving or suction according to the corresponding operation phase.

主权项

1. An auxiliary installation for draining thermal oil at a thermal solar plant, which includes main conduits and loops, each of the loops being isolated from said main conduits by first valves and with each loop corresponding to a set of solar collectors arranged in series, and further including second valves at ends of the loops for external connection, the auxiliary installation comprising the following elements: an oil tank; a pumping system; a depression/suction system; first conduits for communication with at least one of the second valves; a second conduit for communication between the oil tank and the pumping system; third conduits from the oil tank and pumping system for communication with at least one of the second valves; and a set of opening/closing flow valves between the oil tank, the pumping system; the depression/suction system and the first through third conduits; the first and third conduits for communication with the second valves each include a corresponding pair of hoses, one of the hoses in each pair connected to the other to form first and second closed loop branch circuits, each of these branch circuits having a connection at a free end thereof with a corresponding said second valve of the loop of the thermal solar plant, and without said branch circuits having any valves at their free ends.