Dual-channel cage-type subsea throttle valve

A dual-channel cage-type subsea throttle valve, comprising:

• an upper valve cover;
• a middle valve body, wherein two upper valve chambers are defined in the middle valve body, and the upper valve cover is connected to a top of the middle valve body;
• a valve body connected to a bottom of the middle valve body, wherein lower valve chambers are defined in the valve body, and the two upper valve chambers are respectively connected to the lower valve chambers, and the valve body is provided with a fluid inlet connected to the lower valve chambers;
• and
• a lower valve cover connected to a bottom of the valve body, wherein the lower valve cover is provided with a fluid outlet, and the two lower valve chambers are connected to the fluid outlet;
• wherein
• a driving cam, a motor, a baffle, and a spring are provided in each of the two upper valve chambers;
• the motor is connected to the driving cam, the baffle is arranged below the driving cam, and the spring is arranged between the baffle and a bottom surface of the upper valve chamber;
• a valve stem, a valve core, a cage sheath, a valve core holder, and a valve seat are provided in each of the two lower valve chambers;
• the valve stem is slidably arranged in the lower valve chamber and has a top that extends into the upper valve chamber and is sleeved in the spring, and the top of the valve stem is connected to the baffle;
• the valve core is arranged in an upper part of the lower valve chamber and sleeved outside the valve stem;
• the cage sheath is sleeved outside the valve core, and a side wall of the valve core and a side wall of the cage sheath are provided with throttling holes;
• the valve core holder is arranged below the valve core to fix and support the valve core;
• and
• the valve seat is arranged below the cage sheath and sleeved outside the valve core holder.