| 摘要 |
<p>PURPOSE:To improve the retrieving efficiency of energy by a method wherein the retrieving of the energy upon the liquid supplying stroke as well as the pressure reducing stroke of a cylinder for reducing a pressure is permitted in a chemical plant including a process, in which the pressure of high-pressure liquid, containing solid particles and dissolved gas, is reduced. CONSTITUTION:A coal liquidizing plant is equipped with a coal liquidizing product solution supplying line 1, and high-pressure side as well as low-pressure side gas and liquid separating towers 2, 3. In this case, the power retrieving device is consisting of high-pressure liquid pressure reducing plunger type cylinders 11, 14, arranged with plungers 11a, 14a which are opposing mutually, and a double rod type double-acting cylinder 17 for pressure medium, arranged between both cylinders 11, 14 and whose rod ends are connected to the plungers 11a, 14a. Each cylinders 11, 14 are connected in parallel to each gas and liquid separating towers 2, 3, while each cylinder chambers of the double-acting cylinder 17 are connected to a variable volume type main hydraulic pressure motor 20 for retrieving the power and an auxiliary liquid pressure motor 21 through direction switching valves 18, 19, and a generator 24 is connected to a common shaft for these motors.</p> |
