CN204548433U - A kind of upper module for floating production system and deck connection structure - Google Patents

Abstract

The utility model relates to a connection structure between an upper module and a deck for a floating production system, which comprises a plurality of support pads and module main columns equal in number to the support pads; each support pad is fixedly connected On the deck, a cylindrical wall is fixedly connected to the top surface of each support plate, and a plurality of supporting brackets are fixedly connected to the outside of each cylindrical wall at intervals, and the bottom of the supporting brackets is fixedly connected to the support plate The top surface of the cylinder; a cylindrical elastic support is arranged on the inner side of each cylinder wall, and the outer wall of the elastic support is closely attached to the cylinder wall; a vertical restraint is set on the lower part of the main column of each module And a connecting piece, the vertical restraint piece is annular and fastened to the main column of the module; the bottom of the main column of each module is inserted into an elastic support; the connecting piece is a tubular structure with an annular baffle on the upper end , the lower part of the connecting piece is fastened to the outer wall of the cylinder wall, and the annular baffle of the connecting piece is located above the vertical constraint.

Description

A connection structure between topside module and deck for floating production system

technical field

The utility model relates to a connection structure between an upper module and a deck for a floating production system, which belongs to the field of offshore oil engineering.

Background technique

With the advancement of the rolling development of my country's offshore oil and gas fields, the development of offshore oil and gas fields has gradually developed from shallow water to deep water in recent years. For the development of deep water oil and gas fields, due to reasons such as water depth, environmental conditions and development costs, the traditional shallow water fixed platform development model is no longer applicable. As the first choice for deep water development, the floating production system has an increasingly large application range and scale . At present, the widely used floating production systems include large-scale floating production systems such as FPSO and FLNG, and the scale of the upper module is getting larger and larger, resulting in an increasing size and weight of the upper module. The connection between the upper module and the deck of the traditional floating production system is rigid connection. In order to ensure the safety of the upper module structure, the strength requirements for the connection between the module support and the hull are high, and the installation is complicated, resulting in an increase in the amount of steel in the upper module. Therefore, to optimize the amount of steel in the upper module, it is necessary to develop a new type of module support connection device for the floating production system that is easy to install and use.

Contents of the invention

In view of the above problems, the purpose of this utility model is to provide a connection structure between an upper module and a deck for a floating production system.

In order to achieve the above purpose, the utility model adopts the following technical scheme: a connection structure between the upper module and the deck for the floating production system, which is characterized in that it includes a plurality of support plates and the number of support plates is the same as that of the support plates Equal module main columns; each of the support plates is fixedly connected on the deck, and a cylindrical wall is fixedly connected to the top surface of each of the support plates, and the outer sides of each cylindrical wall are fixed at intervals A plurality of support brackets are connected, and the bottom of the support brackets is fixedly connected to the top surface of the support plate; a cylindrical elastic support is arranged on the inner side of each cylinder wall, and the The outer wall of the elastic support is in close contact with the cylindrical wall; a vertical constraint and a connecting piece are nested in the lower part of the main column of each module, and the vertical constraint is ring-shaped and connected to the module The main column is fastened and connected; the bottom of the main column of each module is inserted into one of the elastic supports; the connecting piece is a tubular structure with an annular baffle on the upper end, and the lower part of the connecting piece is connected to the The outer wall of the cylinder wall is fastened and connected, and the annular baffle of the connecting piece is located above the vertical restraint piece.

The bottom of each main column of the module is configured as an inverted cone; the top of each elastic support is configured as an inverted cone.

A plurality of diagonal braces are fixedly connected to each main column of the module, the upper end of the diagonal brace is connected to the upper module, and the angle between the diagonal brace and the main column of the module is 30°-60° .

The support bracket adopts a right-angled triangle steel plate, and its two right-angled sides are respectively tightly connected with the support plate and the cylinder wall.

Because the utility model adopts the above technical scheme, it has the following advantages: 1. Between the main column of the module of the utility model and each connection base fixed on the deck, a joint similar to a hinge (between the connector and the vertical constraint) is adopted. There is no fixed connection relationship), and there is an elastic support between the main column of the module and the cylinder wall. This structure has a certain release effect on the displacement of the main column of the module in two horizontal directions, so it can Effectively reduce the load of the upper module and reduce the impact of the movement of the floating production system on the upper module. 2. The bottom of the main column of the module of the utility model is set in an inverted cone shape, and the top of the elastic support is also set in an inverted cone shape, which is conducive to the rapid positioning and connection of the upper module and the connecting base. 3. The utility model has a simple structure and low manufacturing cost, and can be widely used in the field of offshore oil and gas fields.

Description of drawings

Fig. 1 is a schematic diagram of the connection relationship between the upper module and the deck;

Fig. 2 is a schematic diagram of an enlarged structure of part A in Fig. 1;

Fig. 3 is a schematic sectional view of B-B direction in Fig. 2;

Fig. 4 is a schematic sectional view of C-C direction in Fig. 2;

Fig. 5 is a schematic diagram of an enlarged structure of part D in Fig. 2;

Fig. 6 is a schematic diagram of the connection between the main column of the module of the present invention and the connection base.

Detailed ways

Below in conjunction with accompanying drawing and embodiment the utility model is described in detail.

As shown in Figure 1, the utility model is used to connect the upper module 1 and the deck 2 of the floating production system.

As shown in Figures 2 to 5, the utility model includes a plurality of support plates 3 fixedly connected to the deck 2, and a cylinder wall 4 is fixedly connected to the top surface of each support plate 3, and each cylinder The outer side of the wall 4 is fixedly connected with a plurality of supporting brackets 5 at intervals, and the bottom of the supporting brackets 5 is fixedly connected with the top surface of the base plate 3 . A tubular elastic support member 6 is arranged inside each cylinder wall 4 , and the outer wall of the elastic support member 6 is in close contact with the cylinder wall 4 . The utility model also includes a plurality of module main columns 7 fixedly connected to the bottom of the upper module 1, and a vertical constraint 8 and a connecting piece 9 are nested at the bottom of each module main column 7, wherein the vertical constraint 8 It is ring-shaped and firmly connected with the main column 7 of the module. The bottom of the main column 7 of each module is inserted in an elastic support 6 . The connecting piece 9 is a tubular structure with an annular baffle at the upper end, and its lower part is tightly connected with the outer wall of the cylinder wall 4, and the annular baffle at the upper end is located above the vertical restraint 8 to serve as a vertical limit. effect.

In the above-mentioned embodiment, as shown in Figure 6, the bottom of the main column 7 of each module is set in an inverted conical shape, and at the same time, the top of the elastic support 6 is set in an inverted conical shape, so that when the upper module is installed on the deck 2, it is convenient to realize Quick positioning and insertion of the module main column 7 (elastic support 6).

In the above embodiment, a plurality of diagonal braces 10 are fixedly connected to the main column 7 of each module, and the upper ends of the diagonal braces 10 are connected to the upper module 1, and the angle between the diagonal braces 10 and the main column 7 of the module is 30° ~60°.

In the above embodiment, the supporting bracket 5 can be a right-angled triangle steel plate, and its two right-angled sides are respectively fastened to the support backing plate 3 and the cylinder wall 4 .

Utilize the connection structure described in the utility model to realize the connection between the upper module 1 and the deck 2, and its specific process is as follows:

1) According to the position of the module main column 7 of the upper module, the connection base including the support plate 3, the cylinder wall 4, the support bracket 5 and the elastic support 6 is arranged on the deck 2;

2) hoisting the prefabricated upper module 1 on land to the main deck of the floating production system by using a large floating crane, and inserting all the main columns 7 of the modules into the corresponding elastic supports 6 connected to the base;

3) Place the connecting piece 9 on the main column 7 of each module at a predetermined position, and weld it with the cylinder wall 4 to ensure the stability of the connection between the upper module 1 and the deck 2 and the bearing capacity of the connection structure.

4) Further complete the connection and commissioning of cable pipelines and hoses to prepare the oil field for production.

The utility model is only described with the above-mentioned embodiment, and the structure, setting position and connection of each component can be changed. On the basis of the technical solution of the utility model, all individual components are carried out Improvements and equivalent transformations should not be excluded from the protection scope of the present utility model.

Claims (5)

1. for upper module and the deck connection structure of floating production system, it is characterized in that: it comprises multiple holder base plate module head tree equal with described holder base plate with quantity;

Holder base plate described in each is all fixedly connected with above deck, described in each, the end face of holder base plate is fixedly connected with a cylinder barrel, the equal interval, outside of each cylinder barrel is fixedly connected with multiple anti-tripping bracket, and the bottom of described anti-tripping bracket is fixedly connected on the end face of described holder base plate; Described in each, the inner side of cylinder barrel all arranges a tubular elastic supporting member for supporting optical member, and outer wall and the described cylinder barrel of described elastic supporting member for supporting optical member fit tightly;

The bottom of module head tree described in each is nested with vertical attaching means and an a connection piece, and described vertical attaching means in the form of a ring and be fastenedly connected with described module head tree; Described in each, the bottom of module head tree is plugged in elastic supporting member for supporting optical member described in; Described attaching parts is the tubular structure of a upper end with a ring baffle, and the bottom of described attaching parts and the outer wall of described cylinder barrel are fastenedly connected, and the ring baffle of described attaching parts is positioned at the top of described vertical attaching means.

2. a kind of upper module for floating production system and deck connection structure as claimed in claim 1, is characterized in that: be arranged to inverted cone-shaped bottom module head tree described in each; Described in each, inverted cone-shaped is arranged at the top of elastic supporting member for supporting optical member.

3. a kind of upper module for floating production system and deck connection structure as claimed in claim 1 or 2, it is characterized in that: module head tree described in each is fixedly connected with multiple diagonal brace, the upper end of described diagonal brace connects described upper module, and the angle between described diagonal brace and described module head tree is 30 ° ~ 60 °.

4. a kind of upper module for floating production system and deck connection structure as claimed in claim 1 or 2, it is characterized in that: described anti-tripping bracket adopts the steel plate of right-angled triangle, and its two square edge is fastenedly connected with described holder base plate, cylinder barrel respectively.

5. a kind of upper module for floating production system and deck connection structure as claimed in claim 3, is characterized in that: described anti-tripping bracket adopts the steel plate of right-angled triangle, and its two square edge is fastenedly connected with described holder base plate, cylinder barrel respectively.