Jet-propelled water-entry composite buffer device for multi-channel gas recycling

A jet-propelled water-entry composite buffer device for multi-channel gas recycling, comprising a head fairing, an underwater vehicle, a buffer and a cavitator, wherein the buffer is configured to buffer the acting force between the underwater vehicle and the water when the underwater vehicle enters the water, further comprising a side fairing;

• wherein
• the side fairing is a split-type, with a plurality of splits sealing spliced into a whole around the axis of the side fairing, and the plurality of splits are detachably connected with each other;
• the side fairing comprises a fairing side wall, a head part of the underwater vehicle is detachably connected to a rear end of the fairing side wall, and a rear end of the head fairing is detachably connected to a front end of the side fairing;
• the cavitator is located in the front end of the fairing side wall, and an outer edge of the cavitator is in sealing sliding connection with the fairing side wall;
• the side fairing further comprises a fairing body and a sealing choke plate disposed in the fairing side wall, wherein the sealing choke plate is located at a front end of the fairing body, a transition cavity is formed by the sealing choke plate and the fairing body located in the fairing side wall, a high-pressure gas cavity is formed by the cavitator and the sealing choke plate located in the fairing side wall, the high-pressure gas cavity is provided with high-pressure gas, and a sub-high-pressure gas cavity is formed by the fairing body and a portion of the head part of the underwater vehicle located in the fairing side wall;
• the sealing choke plate is provided with a quota air pressure valve, and when the pressure in the high-pressure gas cavity exceeds a set value of the quota air pressure valve, the high-pressure gas in the high-pressure gas cavity enters the transition cavity;
• pressure reducing holes with two ends respectively communicated with the transition cavity and the sub-high-pressure gas cavity are provided in the fairing body, and the pressure reducing holes are configured to depressurize and transmit the high-pressure gas in the transition cavity to the sub-high-pressure gas cavity;
• and
• an output end of the buffer is located in the high-pressure gas cavity and fixedly connected to the cavitator, and an input end thereof passes through the sealing choke plate and the fairing body and is connected to the underwater vehicle, and is sealing connected to the sealing choke plate and the fairing body.