CN207809713U - A kind of umbilical cables floating body - Google Patents

Abstract

The utility model discloses an umbilical cord floating body, which is characterized in that it comprises a floating body body made of light-weight and pressure-resistant solid buoyancy material, a shelving groove for shelving the umbilical cord is arranged on the floating body body, and a locking groove is arranged on the shelving groove. mechanism, the locking mechanism includes a locking belt made of light-weight pressure-resistant solid buoyancy material, one end of the locking belt is a fixed end, the other end of the locking belt is a free end, and the fixed end is fixed on the floating body and located in the rest groove On one side, the other side of the rest groove is provided with a locking buckle for locking the free end. The advantage is that both the buoyant body and the locking belt are made of light-weight and pressure-resistant solid buoyancy material, which makes the umbilical floating body have the characteristics of low density, excellent mechanical properties, low water absorption and stable use; through the cooperation of the locking belt and the locking buckle The locking of the umbilical cable is realized, the structure is simple, the operation is convenient and the connection is stable, the heavy operation of the binding cable is eliminated, and the risk of the floating body loss caused by the accidental failure of the binding cable is eliminated.

Description

An umbilical cord buoy

technical field

The utility model relates to a floating body, in particular to an umbilical cord floating body.

Background technique

In offshore oil and gas exploitation, the deep sea umbilical cable can be used to connect the seabed mining equipment and the floating device on the sea surface. Its main function is to transport hydraulic fluid, chemical agents, electricity and signals. The safety of the cable operation under various working conditions is very important. Conventional umbilical cables are mainly composed of hydraulic or chemical agent pipes (made of steel pipes or hoses), cables (as power cables or signal cables), optical cables and other fillers. In order to ensure the smooth connection and safe operation of the subsea equipment and the surface floating device, the umbilical cable is required to be zero buoyancy.

The zero buoyancy of most umbilical cables is achieved by bundling buoys. Currently, the common buoys are usually composed of multiple basic buoyant units, each buoyant unit is made of individually processed buoyant materials, and the buoys are bound in the on the umbilical to ensure that the buoy does not detach from the umbilical. Considering the load-bearing condition of the umbilical cable in the deep sea, the above-mentioned method of providing zero buoyancy of the umbilical cable has the following problems: 1. The operation is not convenient, and the installation and maintenance of the floating body and the umbilical cable are more troublesome; 2. The umbilical cable floating body with the above structure The structural balance of the floating body and the umbilical cable is determined by the binding situation, and the floating line cannot be guaranteed to pass through the center of gravity, so it is difficult to perform self-balancing; 3. Since the floating body is composed of multiple floating body units, when a single floating body unit is damaged , continuing to work in harsh sea conditions will increase the probability of damage or failure of the lashing rope, which will lead to the failure of the entire floating body; 4. The structure of the multi-floating body unit is prone to local stress during deep sea operations, resulting in more serious reciprocating vibrations. Resulting in the umbilical reaching its fatigue limit and breaking.

Contents of the invention

The technical problem to be solved by the utility model is to provide an umbilical cord floating body with simple structure, convenient operation, excellent performance and effective reduction of damage to the umbilical cord.

The technical solution adopted by the utility model to solve the problems of the technologies described above is:

An umbilical cord buoy, comprising a buoyant body made of light-weight, pressure-resistant solid buoyant material, the buoyant body is provided with a resting groove for resting the umbilical cord, and the resting groove is provided with a The umbilical cable is equipped with a fixed locking mechanism. The locking mechanism includes a locking belt made of light-weight pressure-resistant solid buoyancy material. One end of the locking belt is a fixed end, and the other end of the locking belt is a free The fixed end is fixedly arranged on the floating body body and is located on one side of the resting groove, and the other side of the resting groove is provided with a locking buckle for locking the free end.

The locking buckle includes a mounting plate fixed on the floating body body, a locking plate is arranged parallel to and spaced above the mounting plate, and the mounting plate and the locking plate are close to the resting groove The side ends are connected by an arc-shaped connecting plate, and the free end is provided with a locking hole that penetrates up and down and matches the locking plate, and is connected to the locking plate through the locking hole. Realize the fixed installation of the free end. The fixed installation is realized through the installation plate, and the locking plate is used to lock the free end of the locking belt, with simple structure and convenient operation.

The upper surface of the locking plate is provided with an upwardly protruding locking boss, and the longitudinal section of the locking boss is a trapezoid with a small upper part and a larger bottom part. The locking boss here plays a role in preventing the free end of the locking belt from coming off, that is, after the installation is completed, an external force is required to release the free end of the locking belt. The hook on the free end is installed and removed.

The lower surface of the locking belt is an arc-shaped surface matched with the outer peripheral wall of the umbilical cable. The structural design can effectively guarantee the basic needs, and at the same time improve the reliability and stability of the entire floating body.

The resting groove is a downwardly recessed arc groove matching the outer peripheral wall of the umbilical cable. This structural design can effectively reduce stress concentration and reduce damage to the umbilical cable caused by the floating body under harsh operating conditions. At the same time, it is convenient to fasten and cooperate with the umbilical cable, so that the floating body has better reliability and stability during use.

A U-shaped locking groove with an outer opening is formed between the locking plate, the arc-shaped connecting plate, and the mounting plate, and a locking baffle is arranged in the U-shaped locking groove. The lower end of the baffle is rotatably arranged on the mounting plate, a vertical tension spring is connected between the lower end surface of the locking baffle and the upper end surface of the mounting plate, and the locking baffle When no force is applied, the tension spring is in a naturally stretched state, the upper end of the locking baffle is in contact with the lower end surface of the locking plate, and the lower end of the locking baffle is in contact with the arc-shaped The horizontal linear distance of the connecting plate is greater than the upper end of the locking baffle to the horizontal linear distance of the arc connecting plate; when the free end of the locking band is in the locked state, the free end of the locking band The terminal is located between the arc-shaped connecting plate and the locking baffle. The above structural design can further lock the installation of the free end of the locking belt. When the free end of the locking belt is connected to the locking plate, it will form a thrust on the locking baffle, pushing the upper end of the locking baffle to connect to the arc. When the direction of the plate is close, the extension spring is elongated. When the end of the free end of the locking band enters the space formed between the arc-shaped connecting plate and the locking baffle, the force applied to the locking baffle disappears, and the extension spring Retraction brings the upper end of the locking baffle back to the initial position, and when the free end of the locking band needs to be disassembled, a thrust must be applied to the locking baffle first, that is, the above structure makes the movement of the locking baffle a single step. Directional movement ensures stable locking.

The longitudinal section of the floating body is oval. The longitudinal section of the buoyant body is elliptical, so that when the umbilical cable moves in the water, the water flow is diverted at the front edge of the buoyant body. Since the water flow does not reach the rear edge of the buoyant body in time, a low-pressure area is created near the leeward side of the buoyant body, thereby greatly reducing The resistance generated by the small floating body during retraction and deployment.

Compared with the prior art, the utility model has the advantages that both the buoyant body and the locking belt are made of light-weight and pressure-resistant solid buoyancy materials, so that the umbilical buoyant has low density, excellent mechanical properties, low water absorption and is durable Stable features; the locking of the umbilical cable is realized through the cooperation of the locking belt and the locking buckle. The structure is simple, the operation is convenient and the connection is stable, which saves the heavy operation of the tying rope and eliminates the risk of losing the buoy due to the accidental failure of the tying rope.

Description of drawings

Fig. 1 is the structure schematic diagram of the utility model installation umbilical cable and the free end of the locking belt in a fixed state;

Fig. 2 is a structural schematic diagram of the utility model when the umbilical cable is installed and the free end of the locking belt is not fixed;

Fig. 3 is a schematic diagram of an enlarged structure at A in Fig. 2;

Figure 4 is a schematic diagram of the enlarged structure at B in Figure 3

Fig. 5 is a structural schematic diagram of the utility model with the locking belt removed.

Detailed ways

The utility model is described in further detail below in conjunction with the accompanying drawings.

As shown in Figures 1 to 5, an umbilical cable buoy includes a buoyant body 1 made of light-weight, pressure-resistant solid buoyant material. The groove 11 is provided with a locking mechanism for placing and fixing the umbilical cable 2. The locking mechanism includes a locking belt 3 made of light-weight pressure-resistant solid buoyancy material. One end of the locking belt 3 is a fixed end 31, and the locking belt 3 The other end is a free end 32 , the fixed end 31 is fixedly arranged on the floating body 1 and is located on one side of the rest groove 11 , and the other side of the rest groove 11 is provided with a locking buckle 4 for locking the free end 32 .

In this specific embodiment, the locking buckle 4 includes a mounting plate 41 fixed on the buoy body 1 , a locking plate 42 is arranged parallel and spaced above the mounting plate 41 , and the mounting plate 41 and the locking plate 42 are close to the side ends of the rest groove 11 Connected by an arc-shaped connecting plate 43 , the free end 32 is provided with a locking hole 321 penetrating up and down and matched with the locking plate 42 , and the free end 32 is fixedly installed through the locking hole 321 piercing through the locking plate 42 . The fixed installation is realized by the mounting plate 41, and the locking plate 42 is used to lock the free end 32 of the locking belt 3, which has a simple structure and is easy to operate.

In this specific embodiment, an upwardly protruding locking boss 421 is provided on the upper surface of the locking plate 42 , and the longitudinal section of the locking boss 421 is a trapezoid with a small upper part and a larger bottom part. The locking boss 421 here plays an anti-off effect on the free end 32 of the locking band 3, that is, after the installation is completed, it is necessary to apply an external force to realize the release of the free end 32 of the locking band 3. The large trapezoidal shape is convenient for hooking installation and dismounting of the free end 32 on the locking band 3 .

In this specific embodiment, the lower surface 33 of the locking belt 3 is an arc-shaped surface matched with the outer peripheral wall of the umbilical cord 2 . The structural design can effectively guarantee the basic needs, and at the same time improve the reliability and stability of the entire floating body.

In this specific embodiment, the resting groove 11 is a downwardly recessed arc-shaped groove matching the outer peripheral wall of the umbilical cord 2 . This structural design can effectively reduce stress concentration, reduce damage to the umbilical cable 2 caused by the floating body under harsh operating conditions, and at the same time facilitate fastening and cooperation with the umbilical cable 2, so that the floating body has better reliability and stability during use sex.

In this specific embodiment, the longitudinal section of the floating body 1 is elliptical. The longitudinal section of the floating body 1 is elliptical, so that when the umbilical cable 2 moves in the water, the water flow is diverted at the front edge of the floating body. Since the water flow does not reach the rear edge of the floating body in time, a low-pressure area is created near the leeward side of the floating body, thereby Greatly reduce the resistance generated by the floating body during retraction and deployment.

In this specific embodiment, two locking straps 3 are arranged in parallel at intervals, and the specific number of locking straps 3 can also be adjusted according to the length of the buoy body 1 .

In this specific embodiment, a U-shaped locking groove 44 with an outer opening is formed between the locking plate 42, the arc-shaped connecting plate 43, and the mounting plate 41. A locking baffle 5 is arranged in the U-shaped locking groove 44, and the locking baffle The lower end of 5 is rotatably arranged on the mounting plate 41, and a vertical extension spring 6 is connected between the lower end surface of the locking baffle 5 and the upper end surface of the mounting plate 41. When the locking baffle 5 is not stressed, the tension spring 6 is in a naturally stretched state, the upper end of the locking baffle 5 is in contact with the lower end surface of the locking plate 42, and the horizontal linear distance from the lower end of the locking baffle 5 to the arc-shaped connecting plate 43 is greater than the upper end of the locking baffle 5 to the arc-shaped connecting plate 43 horizontal linear distance; when the free end 32 of the locking band 3 is in the locked state, the end of the free end 32 of the locking band 3 is located between the arc connecting plate 43 and the locking baffle 5 . The above structural design plays a further locking effect on the installation of the free end 32 of the locking band 3. When the free end 32 of the locking band 3 is connected to the locking plate 42, a thrust is formed on the locking baffle 5 to push the locking baffle. The upper end of the plate 5 is close to the direction of the arc connecting plate 43, and the extension spring 6 is elongated. In the space, the force applied to the locking baffle 5 disappears, and the tension spring 6 retracts, bringing the upper end of the locking baffle 5 back to the initial position. When the free end 32 of the locking band 3 needs to be disassembled, it must first be removed. Only when a thrust is applied to the locking baffle 5, that is, the above-mentioned structure makes the movement of the locking baffle 5 a one-way movement, ensuring stable locking.

Claims (7)

1. An umbilical cord buoy, characterized in that it comprises a buoyant body made of light-weight, pressure-resistant solid buoyancy material, said buoyant body is provided with a shelving groove for shelving the umbilical cord, said shelving groove There is a locking mechanism for fixing the umbilical cable, the locking mechanism includes a locking belt made of light-weight pressure-resistant solid buoyancy material, one end of the locking belt is a fixed end, and the locking belt The other end is a free end, and the fixed end is fixedly arranged on the floating body body and is located on one side of the rest groove, and the other side of the rest groove is provided with a device for locking the free end. end locking buckle. 2. An umbilical floating body as claimed in claim 1, characterized in that the locking buckle includes a mounting plate fixed on the floating body body, and a locking plate is arranged parallel and spaced above the mounting plate, The mounting plate is connected to the side end of the locking plate close to the rest groove through an arc-shaped connecting plate, and the free end is provided with an upper and lower penetrating hole that matches the locking plate. The locking hole is passed through the locking plate through the locking hole to realize the fixed installation of the free end. 3. An umbilical floating body according to claim 2, characterized in that the upper surface of the locking plate is provided with an upwardly protruding locking boss, and the longitudinal section of the locking boss is small at the top and large at the bottom. trapezoidal. 4. The umbilical floating body according to claim 1, characterized in that the lower surface of the locking belt is an arc-shaped surface matched with the outer peripheral wall of the umbilical. 5. The umbilical cable buoy according to claim 1 or 4, characterized in that the resting groove is a downwardly recessed arc-shaped groove matching the outer peripheral wall of the umbilical cable. 6. An umbilical floating body according to claim 2 or 3, characterized in that a U-shaped lock with an outer side opening is formed between the locking plate, the arc connecting plate and the mounting plate groove, the U-shaped locking groove is provided with a locking baffle, the lower end of the locking baffle is rotatably set on the mounting plate, the lower end surface of the locking baffle is in contact with the installation A vertical extension spring is connected between the upper end surfaces of the plates. When the locking baffle is not stressed, the extension spring is in a naturally stretched state, and the upper end of the locking baffle is in contact with the locking plate. contact with the lower end surface of the locking baffle, and the horizontal straight-line distance from the lower end of the locking baffle to the arc-shaped connecting plate is greater than the horizontal straight-line distance from the upper end of the locking baffle to the arc-shaped connecting plate; when the When the free end of the locking band is in the locked state, the end of the free end of the locking band is located between the arc-shaped connecting plate and the locking baffle. 7. The umbilical floating body according to claim 1, characterized in that the longitudinal section of the floating body body is elliptical.