Underwater floating body and installation method thereof

Abstract

The present invention relates to the technical field of ships, and particularly relates to an underwater floating body and an installation method thereof. The floating body includes sub-cabins and pressure resistant cabins, symmetrically arranged sub-cabins are arranged at the left and right sides of the floating body, the sub-cabins are arranged at the front and back sides of the floating body, the buoyant force provided by the sub-cabins at the front side of the floating body is larger than the buoyant force provided by the sub-cabins at the back side of the floating body. According to the underwater floating body and the installation method thereof provided by the present invention, the underwater floating body can arrive at the working water area at one step, thereby saving a large amount of manpower and material resources.

1 . An underwater floating body, comprising sub-cabins ( 1 ) and pressure resistant cabins ( 2 );
 the sub-cabins ( 1 ) are arranged at the left and right sides of the floating body, and the sub-cabins at the left and right sides of the floating body provide the same buoyant force; the sub-cabins are arranged at the front and back sides of the floating body, the buoyant force provided by the sub-cabins ( 1 ) at the front side of the floating body is larger than the buoyant force provided by the sub-cabins ( 1 ) at the back side of the floating body, or the buoyant force provided by the sub-cabins ( 1 ) at the back side of the floating body is larger than the buoyant force provided by the sub-cabins ( 1 ) at the front side of the floating body;   the pressure resistant cabins ( 2 ) penetrate through the sub-cabins ( 1 ) and are fixedly connected with the bulkheads of the sub-cabins ( 1 );   the buoyant center of the floating body and the gravity center of the floating body are located on the same vertical line, and the position of the buoyant center of the floating body is higher than the position of the gravity center of the floating body;   an inflation valve is arranged on each pressure resistant cabin ( 2 );   a ventilating system and a water supply system are arranged on each sub-cabin ( 1 ).   
     
     
         2 . The underwater floating body of  claim 1 , wherein the buoyant force provided by the sub-cabins ( 1 ) at the front side of the floating body is larger than the buoyant force provided by the sub-cabins ( 1 ) at the back side of the floating body, or the buoyant force provided by the sub-cabins ( 1 ) at the back side of the floating body is larger than the buoyant force provided by the sub-cabins ( 1 ) at the front side of the floating body, comprising:
 the number of the sub-cabins ( 1 ) at the front side of the floating body is larger than the number of the sub-cabins ( 1 ) at the back side of the floating body, or the number of the sub-cabins ( 1 ) at the back side of the floating body is larger than the number of the sub-cabins ( 1 ) at the front side of the floating body.   
     
     
         3 . The underwater floating body of  claim 1 , wherein at least one pressure resistant cabin ( 2 ) is provided. 
     
     
         4 . The underwater floating body of  claim 1 , further comprising a posture monitoring system and a controller;
 the posture monitoring system, the ventilating system and the water supply system are respectively connected with the controller;   the posture monitoring system is used for monitoring the position of the floating body and monitoring that the floating body is at a balanced state or an inclined state, and when the floating body is at the inclined state, the controller controls the ventilating system to inflate the sub-cabin ( 1 ) at the downward inclined end of the floating body until the floating body is not inclined any more.   
     
     
         5 . The underwater floating body of  claim 4 , wherein the posture monitoring system is composed of four position sensors;
 the four position sensors are respectively installed on the four corners on the surrounding of the floating body; the four position sensors are respectively connected with the controller.   
     
     
         6 . An installation method of the underwater floating body of  claim 5 , comprising:
 respectively inflating the pressure resistant cabins ( 2 ) and filling water into the sub-cabins ( 1 );   putting the underwater floating body in a working water area;   inflating the sub-cabins ( 1 ) to discharge water in the sub-cabins ( 1 ), so as to enable the sub-cabins ( 1 ) to generate an upward positive buoyant force.   
     
     
         7 . The installation method of  claim 6 , wherein the respectively inflating the pressure resistant cabins ( 2 ) and filling water into the sub-cabins ( 1 ) comprises:
 connecting a water surface inflation system with the inflation valve on each pressure resistant cabin ( 2 ), inflating the pressure resistant cabin ( 2 ) via the water surface inflation system, and closing the inflation valve on the pressure resistant cabin ( 2 ) and the water surface inflation system when the gas pressure in the pressure resistant cabin ( 2 ) is consistent with the water pressure of the working water area;   opening the ventilating system on each sub-cabin ( 1 ) to keep the ventilating system on each sub-cabin ( 1 ) at a normal pressure state;   filling water into each sub-cabin ( 1 ) through the water supply system.   
     
     
         8 . The installation method of  claim 7 , wherein the putting the underwater floating body in a working water area comprises:
 putting the pressure resistant cabins ( 2 ) and the sub-cabins ( 1 ) in water until the pressure resistant cabins ( 2 ) and the sub-cabins ( 1 ) are completely submerged in water;   using a hauling system to haul the floating body downwards;   stopping the hauling action of the hauling system after the underwater floating body arrives at the working water area.   
     
     
         9 . The installation method of  claim 8 , wherein the inflating the sub-cabins ( 1 ) to discharge a part of water in the sub-cabins ( 1 ), so as to enable the sub-cabins ( 1 ) to generate an upward positive buoyant force comprises:
 controlling the ventilating system to inflate each sub-cabin ( 1 ) through the controller to discharge a part of water in each sub-cabin ( 1 );   closing the ventilating system on each sub-cabin ( 1 ) after each sub-cabin ( 1 ) is inflated, so as to enable each sub-cabin ( 1 ) to provide the upward positive buoyant force.   
     
     
         10 . The installation method of  claim 9 , further comprising:
 monitoring the position of the floating body via the four position sensors distributed on the four corners on the surrounding of the floating body after inflating each sub-cabin ( 1 ), monitoring that the floating body is at the balanced state or the inclined state, and when the floating body is at the inclined state, controlling the ventilating system through the controller to inflate the sub-cabin ( 1 ) at the downward inclined end of the floating body until the floating body is not inclined any more.