CN207728479U - The limitation locking protective device of float under a kind of extreme sea condition - Google Patents

Abstract

The utility model discloses a limit locking protection device for a float under extreme sea conditions, which comprises an upper top plate and a lower bottom plate, more than two guide rods are installed between the upper top plate and the lower bottom plate, and an oscillating float is worn on each guide rod And it can slide up and down along the guide rods. A mechanical claw that can be lifted along the guide rods is installed on each guide rod. A float lift control box is installed on the upper top plate. The float lift control box controls the above-mentioned machines through the hydraulic transmission system. For the opening and closing and lifting of the claws, a lifting ring is installed at the position opposite to each mechanical claw on the oscillating float. In the limit locking protection device for floats under extreme sea conditions disclosed by the utility model, the float lifting control box adopts a hydraulic transmission system to control the opening, closing and lifting of each mechanical claw. Compared with mechanical transmission and electric transmission, hydraulic transmission has the advantages of light weight, It has the advantages of small size, small motion inertia, fast response speed, various components can be conveniently and flexibly arranged according to needs, and convenient operation and control.

Description

A limit locking protection device for floats under extreme sea conditions

technical field

The utility model belongs to the field of wave energy generating devices, in particular to a position-limiting locking protection device for floats under extreme sea conditions in the field.

Background technique

Ocean energy, as a kind of renewable energy with abundant reserves, clean and environment-friendly, has attracted great attention of people. In the ocean, wave energy is the most widely distributed and has extremely rich reserves. Compared with other types of ocean energy resources, wave energy resources have a high energy flow density and can be obtained in both nearshore and offshore areas. Oscillating float wave energy power generation is also called point-absorbing wave energy power generation. The oscillating float is used as the energy-harvesting structure, and energy is obtained by the float floating on the sea surface moving up and down under the action of waves, and the wave energy is realized by two parts: the transmission system and the hydraulic system. conversion to electrical energy. Due to the huge energy of the waves, according to measurements, the impact force of the waves on the coast can reach 30-50t per square meter, and it can reach 60t per square meter in extreme sea conditions. This is devastating to marine engineering and damage to offshore facilities. In extreme sea conditions, the protection of the oscillating buoy generating device is particularly important.

When the oscillating float power generation device encounters extreme weather, due to the large diameter of the float, it needs to withstand a very large wave impact. On the one hand, the float and the guide rod fixing the float may be damaged, and on the other hand, the entire power generation device may be overturned. In traditional construction, in order to avoid these situations, ultra-high molecular weight polyethylene ropes are used around the buoy to connect the buoy to the top working platform, and the buoy lift control box is used to control the rise of the buoy to avoid extreme sea conditions. There is contact between the rope and the float, and the movement of the float will be restricted, which will affect the power generation efficiency.

Utility model content

The technical problem to be solved by the utility model is to provide a limit locking protection device and protection method for the float under extreme sea conditions that do not restrict the movement of the float.

The present invention adopts following technical scheme:

A limit locking protection device for floats under extreme sea conditions, including an upper top plate and a lower bottom plate, more than two guide rods are installed between the upper top plate and the lower bottom plate, and an oscillating float is worn on each guide rod and can move along the guide rods. Sliding up and down, the improvement is: a mechanical claw that can be lifted and lowered along the guide rod is installed on each guide rod, and a float lift control box is installed on the upper top plate, and the float lift control box controls the above-mentioned components through a hydraulic transmission system. For the opening and closing and lifting of the mechanical claws, a lifting ring is installed at the position opposite to each mechanical claw on the oscillating float.

Further, there are four guide rods, and each guide rod is equally spaced along the circumferential direction on the edge of the oscillating float.

Further, four protrusions through which the guide rods pass are respectively arranged on the edge of the oscillating float.

Further, the diameter of the oscillating float is 3.6m.

A limit locking protection method for buoys under extreme sea conditions, using the above-mentioned device, the improvements are as follows:

In extreme sea conditions, when the oscillating buoy rises above the preset safe height, the buoy lifting control box controls the closing of each mechanical claw through the hydraulic transmission system to grab the corresponding lifting ring, and then controls the rising of each mechanical claw to raise the oscillating buoy. Away from the sea surface; after the extreme sea conditions are over, the buoy lifting control box controls the release of each mechanical claw through the hydraulic transmission system so that the oscillating buoy can be returned to the sea surface.

Further, the buoy lifting control box can be operated automatically or controlled by a remote terminal.

Further, when the oscillating float needs to be maintained, the float lifting control box can control the lowering and closing of each mechanical claw through the hydraulic transmission system to grab the corresponding lifting ring, and then control the lifting of each mechanical claw to lift the oscillating float Lift off the sea surface for maintenance. After the maintenance, the buoy lifting control box controls the release of each mechanical claw through the hydraulic transmission system to put the oscillating buoy back to the sea surface.

The beneficial effects of the utility model are:

In the limit locking protection device for floats under extreme sea conditions disclosed in the utility model, the float lifting control box adopts a hydraulic transmission system to control the opening and closing and lifting of each mechanical claw. Compared with mechanical transmission and electric transmission, hydraulic transmission has the advantages of light weight, Small size, small motion inertia, fast response, various components can be conveniently and flexibly arranged according to needs, convenient operation and control, automatic overload protection, long service life, remote control and other advantages. Each mechanical claw works independently. Even if one of the mechanical claws fails, the rest of the normal working mechanical claws can still lift the oscillating buoy away from the sea surface to protect the oscillating buoy power generation device.

The limit locking protection method of the float under extreme sea conditions disclosed by the utility model lifts the oscillating float away from the sea surface in extreme sea conditions, and puts the oscillating float back to the sea surface to work normally after the extreme sea condition ends, which can reduce the impact of waves on the oscillating float , to protect the oscillating buoy from damage under extreme sea conditions, and has the advantages of high reliability and simple operation. During the whole process, the float lifting control box can be operated automatically or controlled by the remote terminal. When the oscillating float moves within the preset safe height, there is no mutual contact between the mechanical claws, the oscillating float and the energy extraction structure of the power generation device, which will not affect the movement of the oscillating float and the power generation efficiency. When the oscillating float and its accessories need to be maintained, each mechanical claw can actively descend to grab the lifting ring and then rise to lift the oscillating float away from the sea surface, which is convenient for maintenance of the oscillating float.

Description of drawings

Fig. 1 is a front structural schematic diagram of the limit locking protection device disclosed in Embodiment 1 of the utility model;

Fig. 2 is a schematic diagram of the enlarged structure of the dotted frame in Fig. 1;

Fig. 3 is a three-dimensional structural schematic diagram of the limit locking protection device disclosed in Embodiment 1 of the present utility model;

Fig. 4a is a front structural schematic diagram of the mechanical claw in the limit locking protection device disclosed in Embodiment 1 of the utility model;

Fig. 4b is a schematic top view structure diagram of the mechanical claw in the limit locking protection device disclosed in Embodiment 1 of the utility model;

Fig. 4c is a schematic diagram of the three-dimensional structure of the mechanical claw in the limit locking protection device disclosed in Embodiment 1 of the utility model;

Fig. 5a is a front view structural diagram of the oscillating float in the limit locking protection device disclosed in Embodiment 1 of the utility model;

Fig. 5b is a schematic top view structure diagram of the oscillating float in the limit locking protection device disclosed in Embodiment 1 of the utility model;

Fig. 5c is a schematic diagram of the three-dimensional structure of the oscillating float in the limit locking protection device disclosed in Embodiment 1 of the present utility model.

Detailed ways

In order to make the purpose, technical solution and advantages of the utility model clearer, the utility model will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model, and are not intended to limit the utility model.

Embodiment 1, as shown in Figures 1-3, this embodiment discloses a limit locking protection device for floats under extreme sea conditions, including an upper top plate 3 and a lower bottom plate 4, and two Above the guide rods 2, an oscillating float 103 is worn on each guide rod and can slide up and down along the guide rods, as shown in Figures 4a-4c, each guide rod is equipped with a mechanical claw that can be lifted and lowered 101. Install a float lifting control box on the upper top plate, the float lifting control box controls the opening and closing and lifting of the above-mentioned mechanical claws through the hydraulic transmission system, as shown in Figures 5a-5c, on the oscillating float opposite to each mechanical claw A lifting ring 102 is installed at each position.

In this embodiment, there are four guide rods, and each guide rod is distributed on the edge of the oscillating float at equal intervals along the circumferential direction. On the edge of the oscillating float, four protrusions are respectively arranged for the guide rods to pass through. The oscillating float has a diameter of 3.6 m.

This embodiment also discloses a limit locking protection method for the float in extreme sea conditions. Using the above-mentioned device, in extreme sea conditions, when the oscillating float rises beyond the preset safety height, the float lifting control box controls each The mechanical claws are closed to grab the corresponding lifting ring, and then the mechanical claws are controlled to rise to lift the oscillating buoy off the sea surface; after the extreme sea conditions are over, the buoy lifting control box controls the release of each mechanical claw through the hydraulic transmission system to lift the oscillating buoy. Return to the surface.

In this embodiment, the buoy lifting control box can be operated automatically or controlled by a remote terminal.

In this embodiment, when the oscillating float needs to be maintained, the float lifting control box can control the lowering and closing of each mechanical claw through the hydraulic transmission system to grab the corresponding lifting ring, and then control each mechanical claw to rise to Lift the oscillating buoy away from the sea surface for maintenance. After the maintenance, the buoy lifting control box controls the release of each mechanical claw through the hydraulic transmission system to put the oscillating buoy back to the sea surface.

Claims (4)

1. A limit locking protection device for floats under extreme sea conditions, including an upper top plate and a lower bottom plate, more than two guide rods are installed between the upper top plate and the lower bottom plate, and an oscillating float is worn on each guide rod and can be moved along The guide rods slide up and down, and the feature is that a mechanical claw that can be lifted and lowered along the guide rods is installed on each guide rod, and a float lift control box is installed on the upper top plate, and the float lift control box controls the above-mentioned components through a hydraulic transmission system. For the opening and closing and lifting of the mechanical claws, a lifting ring is installed at the position opposite to each mechanical claw on the oscillating float. 2. The limit locking protection device for floats under extreme sea conditions according to claim 1, characterized in that there are four guide rods, and each guide rod is distributed at equal intervals along the circumference on the edge of the oscillating float. 3. The limit locking protection device for floats under extreme sea conditions according to claim 2, characterized in that four protrusions are provided on the edge of the oscillating float for each guide rod to pass through. 4. The limit locking protection device for floats under extreme sea conditions according to claim 1, characterized in that: the diameter of the oscillating float is 3.6m.