pad此处是“地面”之意吗? A temperature control valve is used to bypass the cooler for heating the oil. The oil temperature is indicated and alarmed in the DCS. For overpressure protection, the cooler has a PSV on the oil side that relieves back to the crankcase and a PSV on the cooling water return header that relieves to the pad. [ ]查看更多9个回答 . 3人已关注