Offshore platform gas turbine power turbine transfer tool

Abstract

The utility model discloses an offshore platform gas turbine power turbine transfer tool which comprises a base, a front support is arranged at the front end of the base, and a rear support is arranged at the rear end of the base. The front support comprises a supporting column, an annular steel plate is connected to the supporting column, and a second bolt hole is formed in the annular face of the annular steel plate. The rear support comprises a supporting column, a semi-annular steel plate is connected to the supporting column, a first bolt hole is formed in the semi-annular steel plate, and a positioning pin hole is further formed in the top end of the supporting column of the rear support. The temporary storage device can achieve the temporary storage function of the power turbine during gas turbine exchange, can also serve as a tool for transferring the power turbine, is simple and reliable in structure, high in adaptability, good in maintainability, easy and convenient to install and low in cost, and can be used for gas turbine exchange in space-limited places such as offshore platforms.

Description

Technical Field

[0001] This utility model relates to the field of gas turbines, and in particular to a transfer fixture for a gas turbine power turbine on an offshore platform. Background Technology

[0002] As a mechanically driven multi-rotor gas turbine, the gas turbine can also be used for power generation. It consists of two main components: a gas generator and a power turbine. It can be considered a unit capable of continuously producing gas at a certain pressure and temperature. Typically, an offshore platform gas turbine generator comprises a gas generator, a power turbine, a gearbox, and a generator. For the normal, safe, and reliable operation and maintenance of the gas turbine, the gas turbine unit is modularly designed, and the gas turbine is usually assembled and installed within a gas turbine housing.

[0003] However, according to the manufacturer's requirements, the gas turbine needs to be exchanged on-site after a certain period of operation, returned to the factory for disassembly and repair, and then the repaired gas turbine is sent back to the gas turbine housing for installation. However, due to the space limitations of the offshore platform and the relatively heavy weight of the gas turbine, the crane cannot directly lift the disassembled power turbine into the transport container. Therefore, based on the special marine environment and transfer requirements, a stable, convenient installation and transfer tool needs to be designed for the transfer of the gas turbine power turbine, and to temporarily store the power turbine during the on-site exchange process. Utility Model Content

[0004] This invention addresses the problem that, due to space limitations on offshore platforms, cranes cannot directly lift power turbines into transport containers during the exchange of aero-derivative gas turbine units. It provides a gas turbine transfer fixture for offshore platforms.

[0005] This utility model is achieved by adopting the following technical solution.

[0006] A gas turbine power turbine transfer fixture for offshore platforms includes a base, a front support at the front end of the base, and a rear support at the rear end of the base. The front support includes a support column, on which an annular steel plate is connected. The annular steel plate has two bolt holes on its annular surface. The rear support includes a support column, on which a semi-annular steel plate is connected. The semi-annular steel plate has one bolt hole. The top of the support column of the rear support also has a positioning pin hole.

[0007] Furthermore, the base is composed of a front support beam, a rear support beam, and two side support beams connected together.

[0008] Furthermore, the base is equipped with casters on its bottom surface.

[0009] Furthermore, the front bracket and the rear bracket are fixed to the base by bolts.

[0010] Furthermore, the front bracket is higher than the rear bracket.

[0011] This application has the following beneficial effects.

[0012] Through research, analysis, and design of the power turbine exchange process, this utility model's tooling allows for the temporary storage and convenient transfer of the power turbine to a transport container in situations where space is limited on an offshore platform. This utility model is not only simple and flexible in structure, but also easy to operate, install, and move. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the structure of this utility model;

[0014] Figure 2 This is a front view of the front bracket of this utility model;

[0015] Figure 3 This is a front view of the rear bracket of this utility model;

[0016] Figure 4 This is a top view of the base of this utility model;

[0017] Figure 5 This is a schematic diagram of the power turbine of this utility model installed on the tooling.

[0018] The components are as follows: 1. Base; 2. Casters; 3. Front bracket; 4. Rear bracket; 5. Bolts; 6. Semi-circular steel plate; 7. Bolt hole one; 8. Support column; 9. Locating pin hole; 10. Bolt hole two; 11. Circular steel plate; 12. Rear support beam; 13. Side support beam; 14. Front support beam; 15. Power turbine; 16. Output bearing housing flange; 17. Power turbine front flange. Detailed Implementation

[0019] The present patent application will be further described below with reference to the embodiments.

[0020] like Figure 1-5 As shown, a gas turbine power turbine transfer fixture for offshore platforms includes four main parts: a base 1, casters 2, a front support 3, and a rear support 4.

[0021] The base 1 is composed of a rear support beam 12, two side support beams 13 and a front support beam 14. Specifically, the rear support beam 12, the two side support beams 13 and the front support beam 14 are all I-beams, and the four I-beams are welded into a ladder shape.

[0022] The bottom surface of the base 1 is connected to casters 2, which are heavy-duty casters. There are four casters in total, which are directly welded to the four corners of the base 1 by welding, allowing for free movement.

[0023] A front bracket 3 is connected to the front end of the base 1, and a rear bracket 4 is connected to the rear end of the base 1. Specifically, the front bracket 3 is fixed to the front support beam 14 by bolts 5, and the rear bracket 4 is fixed to the rear support beam 12 by bolts 5. The front bracket 3 is higher than the rear bracket 4. The front bracket 3 and the rear bracket 4 are fixed to the base 1 by bolts 5, and can be disassembled when not in use for easy storage and to save storage space.

[0024] The front support 3 includes two support columns 8, which are thick-walled square steel pipes. Annular steel plates 11 are welded onto the two support columns 8, and several bolt holes 10 are formed on the annular surface of the annular steel plates 11. The annular steel plate front support 3 with bolt holes is bolted to the front flange 17 of the power turbine for easy disassembly and storage.

[0025] The rear support 4 includes two support columns 8, each a thick-walled square steel pipe. A semi-circular steel plate 6 is welded to the upper middle part of the two support columns 8, and several bolt holes 7 are formed on the semi-circular steel plate 6. Positioning pin holes 9 are also provided at the top of the two support columns 8 of the rear support 4. The semi-circular steel plate rear support 4 with bolt holes is fixed to the output bearing housing flange 16 of the power turbine by bolts, achieving precise matching and positioning with the power turbine.

[0026] Figure 5 This is a schematic diagram of a power turbine installed on a tooling, which includes a power turbine 15, a power turbine front flange 17, and an output bearing housing flange 16.

[0027] The specific steps for using this utility model are as follows:

[0028] First, remove the power turbine 15 from the gas turbine and transport it to the tooling using a hoist. Align the bolt hole 10 with the front flange 17 of the power turbine and insert bolts from the bolt holes of both for initial positioning.

[0029] Then, pre-tighten and tighten sequentially in a diagonal order to fix the position and height of the front end of the power turbine 15. The height of the annular steel plate front bracket 3 with bolt holes in this application is perfectly matched with the horizontal center line of the power turbine, so that after the connection is completed, the lower pipeline of the power turbine and the tooling base will not affect each other.

[0030] Next, align the positioning pin hole 9 of the rear bracket 4 with the positioning pin on the output bearing housing flange 16 of the power turbine 15 and install two positioning bolts on each side. After confirming that the rear bracket 4 and the power turbine 15 are completely aligned, install the remaining bolts and tighten them in a diagonal order.

[0031] Finally, the hoist and lifting tools were removed, completing the installation of the power turbine 15 into the tooling.

[0032] This invention can realize the temporary storage function of power turbine during gas turbine exchange, and can also be used as a tool for transferring power turbine. It has a simple and reliable structure, strong adaptability, good maintainability, simple and convenient installation, and low cost. It can be used for gas turbine exchange in space-constrained places such as offshore platforms.

[0033] The embodiments described herein are preferred embodiments of this utility model and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape, and principle of this utility model should be included within the scope of protection of this utility model.

Claims

1. An offshore platform gas turbine power turbine transfer tooling comprising a base (1), characterised in that: The front end of the base (1) is provided with a front support (3), and the rear end of the base (1) is provided with a rear support (4); the front support (3) comprises a support column (8), an annular steel plate (11) is connected to the support column (8), and bolt holes two (10) are arranged on the annular surface of the annular steel plate (11); the rear support (4) comprises a support column (8), a semi-annular steel plate (6) is connected to the support column (8), bolt holes one (7) are arranged on the semi-annular steel plate (6), and a positioning pin hole (9) is further arranged at the top end of the support column (8) of the rear support (4).

2. A gas turbine power turbine transfer tooling for an offshore platform as claimed in claim 1, characterized in that: The base (1) is connected by a front support beam (14), a rear support beam (12) and two side support beams (13).

3. A gas turbine power turbine transfer tooling for an offshore platform as defined in claim 1, characterized in that: Universal wheels (2) are arranged on the bottom surface of the base (1).

4. A gas turbine power turbine transfer tooling for an offshore platform as defined in claim 1, characterized in that: The front support (3) and the rear support (4) are fixed on the base (1) by bolts (5).

5. A gas turbine power turbine transfer tooling for an offshore platform as defined in claim 1, characterized in that: The height of the front support (3) is higher than that of the rear support (4).

Images