apparatus and the medium used for energy conversion is seawater which is environmentally friendly clean and sustainable application_number US 201314655975 A description as shown in fig1 a water pressurizing integrated energy conversion and power generation system collecting marine wave energy comprises an operation platform 1 disposed in an ocean for collecting marine wave energy for energy conversion and power generation an energy conversion installation 13 disposed on the operation platform 1 and a power generation operation room 16 wherein the power generation operation room 16 is disposed at one side of the operation platform 1 the energy conversion installation 13 sends the collected wave energy i e the high pressure pipe water to a pressure mixer 14 for pressure mixing and then sends to a pressure regulator 18 for pressure regulation the energy after pressure regulation is supplied to a hydraulic power generation installation 17 for power generation the operation platform 1 for marine wave energy collection energy conversion and power generation comprises a cubic frame the cubic frame refers to a frame structure in which top crossbars 9 and bottom crossbars 10 form a cube sliding holes are formed on the bottom crossbars 10 and a plunger pump 4 is slidably mounted inside the sliding holes a plunger pump rod 5 of the energy conversion installation.