Plate heat exchanger of data center heating and ventilation system

The utility model provides a plate heat exchanger of a data center heating and ventilation system, which comprises a movable clamping plate and a locking screw, the locking screw comprises a screw rod and a nut, a rolling pad combination is arranged between the nut and the movable clamping plate, the movable clamping plate is tightly pressed through the rolling pad combination when the nut is locked, a rolling insertion pad is arranged on the rolling pad combination, and the rolling insertion pad is inserted into the screw rod. The pad disc is arranged between the rolling-inserting pad and the nut, and the two sides of the rolling-inserting pad are in rolling fit with the pad disc and the movable clamping plate, so that when the screw needs to be disassembled, only the rolling-inserting pad needs to be transversely pushed, the nut does not need to be screwed and disassembled, and time and labor are saved. 本实用新型提供一种数据中心暖通系统的板式换热器，包括活动夹板和锁紧螺丝，所述锁紧螺丝包括螺杆和螺母，所述螺母和活动夹板之间设置有滚垫组合，螺母锁紧时通过滚垫组合将活动夹板压紧，滚垫组合上设置滚插垫，滚插垫和螺母