Throttling device and air conditioning system

The invention provides a throttling device and an air conditioning system, and the throttling device comprises a pore plate structure which is arranged in a refrigerant flow path of the air conditioning system and comprises a pore plate part, and a plurality of throttling holes are formed in the pore plate part; the adjusting assembly comprises a plurality of chock plugs axially aligned with the throttling holes, the chock plugs have closed positions and open positions relative to the throttling holes, the chock plugs block the throttling holes at the closed positions, and the chock plugs are far away from the throttling holes at the open positions; and the driving mechanism is used for driving the chock plug to move between the closing position and the opening position. According to the throttling scheme, the structure is simple, the cost is low, and the flexible adjusting performance is achieved. 本发明提供一种节流装置和空调系统，节流装置包括：孔板结构，设置于空调系统的制冷剂流路内，包括孔板件，孔板件上设置有多个节流孔；调节组件，包括多个与节流孔轴向对齐的塞头，塞头相对于节流孔具有封闭位置和打开位置，在封闭位置塞头封