CN216185917U

CN216185917U - FPSO (Floating production storage and offloading) tank washing system

Info

Publication number: CN216185917U
Application number: CN202122126691.8U
Authority: CN
Inventors: 臧大伟; 陈超; 亢国; 郭兴鹍; 宋林; 苏文东; 朱平
Original assignee: Dalian Shipbuilding Industry Co Ltd
Current assignee: Dalian Shipbuilding Industry Co Ltd
Priority date: 2021-09-03
Filing date: 2021-09-03
Publication date: 2022-04-05
Anticipated expiration: 2031-09-03

Abstract

The invention provides an FPSO (floating production storage and offloading) tank washing system, wherein a tank washing machine is fixed on a main deck, the tank washing machine and a transverse main pipe of a tank washing machine are connected with a tank washing isolating valve through a tank washing machine end pipeline fixing device and a spectacle flange, the pipeline fixing device and a deck fixing device are fixed through a bolt gasket, and the deck fixing device is directly welded on the main deck; the problem of because hull deformation and the impact of washing cabin water to and the repeated vibration of washing cabin machine during operation cause easily washing cabin pipeline flange leakage risk is solved. The tank washing system disclosed by the invention is simple in structure and equipment, meets the maintenance-free requirement of a tank washing pipeline in the life cycle of an FPSO (floating production storage and offloading) and improves the quality of a ship.

Description

FPSO (Floating production storage and offloading) tank washing system

Technical Field

The invention relates to the technical field of ship design and construction, in particular to improvement of an FPSO (floating production storage and offloading) tank washing system.

Background

The FPSO is a ship for offshore floating production, storage and unloading of oil, and has the main functions of offshore oil field treatment, storage, loading and unloading of oil products, and is a floating oil field processing plant on the sea. Due to the particularity of the FPSO, the conventional requirement that the dock is not accessed for 25 years is met, so that high requirements are imposed on the design and construction of a pipeline system and equipment. The tank washing system is an important system for the FPSO. The design of conventional FPSO tank cleaning system, branch pipeline lug connection to tank cleaning machine to advance to utilize ordinary pipe strap to fix at the tip, because the impact of hull deformation and tank cleaning water, and tank cleaning machine during operation vibrate repeatedly, cause tank cleaning pipeline flange easily and leak the risk, the accident is frequent. The invention effectively solves the problems and provides a novel FPSO tank washing system.

Disclosure of Invention

Aiming at the defects of the existing FPSO tank washing system design, the invention designs a novel tank washing system.

An FPSO tank cleaning system comprising: the device comprises a tank washing machine end pipeline fixing device, a tank washing machine, a spectacle flange, a tank washing isolation valve, a branch pipe main valve, a tank washing main pipeline, a tank washing transverse branch pipeline and a tank washing vertical branch pipe.

The cabin washing machine is fixed on a main deck, the cabin washing machine is connected with the spectacle flange through a cabin washing machine end pipeline fixing device, the other side of the spectacle flange is connected with a cabin washing isolation valve, the cabin washing isolation valve is connected with a cabin washing transverse branch pipeline, and the cabin washing transverse branch pipeline is communicated with a vertically arranged cabin washing vertical branch pipe and is connected with a cabin washing main pipeline through a branch pipe main valve.

The tank washing machine end pipeline fixing device is detachably fixed on the main deck;

the tank washer end pipeline fixing device is composed of short pipes, transverse toggle plates, vertical toggle plates and first seat plates, wherein flanges are respectively arranged at two ends of each short pipe, the transverse toggle plates are arranged in the direction of the short pipes, the vertical toggle plates are perpendicular to the transverse toggle plates, and the first seat plates are transversely arranged at the joint of the transverse toggle plates and the lower ends of the vertical toggle plates.

Preferably, the cabin washing machine end pipeline fixing device is fixedly connected with the main deck through a deck fixing device.

Preferably, the deck fixing device is composed of a second seat plate horizontally arranged, a support plate vertically arranged at the lower part of the second seat plate, and two toggle plates vertically fixed at two sides of the support plate respectively.

Preferably, the second seat plate of the deck fixing device is provided with a bolt hole for fixing the first seat plate at the lower part of the cabin washing machine end pipeline fixing device.

Preferably, an elbow is arranged at the turning part of the washing cabin transverse branch pipeline.

Compared with the prior art, the invention has the advantages of realizing cyclic cabin washing and solving the problem of leakage risk of the flange of the cabin washing pipeline caused by deformation of the ship body, impact of cabin washing water and repeated vibration of the cabin washing machine during working. The tank washing system disclosed by the invention is simple in structure and equipment, meets the maintenance-free requirement of a tank washing pipeline in the life cycle of an FPSO (floating production storage and offloading) and improves the quality of a ship.

Drawings

FIG. 1 is a schematic perspective view of the piping system of the FPSO tank cleaning system of the present invention.

FIG. 2 is a schematic structural diagram of the arrangement and installation of the tank washing machine of the FPSO tank washing system of the invention.

FIG. 3 is a front view of the fixing device for the pipeline at the end of the tank washing machine of the FPSO tank washing system of the present invention.

FIG. 4 is a side view of the device for fixing the pipeline at the end of the tank washing machine of the FPSO tank washing system of the present invention.

FIG. 5 is a schematic three-dimensional perspective view of the end deck fixing device of the tank washing machine of the FPSO tank washing system of the present invention.

The device comprises a tank washing machine end pipeline fixing device 1, a tank washing machine 2, a spectacle flange 3, a tank washing isolation valve 4, a branch main valve 5, a tank washing main pipeline 6, a tank washing transverse branch pipeline 7, a tank washing vertical branch pipeline 8, an elbow 9, a bow direction B, a stern direction 12, a tank washing machine end deck fixing device 12, a main deck I, a cargo hold II, a flange 111, a short pipe 112, a transverse toggle plate 113, a vertical toggle plate 114, a seat plate 115, a toggle plate 121, a seat plate 122 and a bolt hole 123.

Detailed Description

Example (b):

as shown in fig. 1, an FPSO tank cleaning system comprising: the device comprises a cabin washing machine end pipeline fixing device 1, a cabin washing machine 2, a spectacle flange 3, a cabin washing isolation valve 4, a branch pipe main valve 5, a cabin washing main pipeline 6, a cabin washing transverse branch pipeline 7 and a cabin washing vertical branch pipe 8;

two 2 symmetry of washing cabin machine are fixed on main deck I, and each 2 washing cabin machine all pass through wash cabin machine end pipeline fixing device 1 with glasses flange 3 is connected, the opposite side of glasses flange 3 has connected washing cabin isolating valve 4, wash cabin isolating valve 4 with wash the horizontal branch pipe way 7 in cabin is connected, wash the horizontal branch pipe way 7 in cabin and the vertical branch pipe 8 UNICOM of washing the cabin of perpendicular setting and pass through branch pipe main valve 5 with wash the cabin main line 6 and link to each other. An elbow 9 is arranged at the turning position of the washing cabin transverse branch pipeline 7.

The high-pressure cabin washing water is discharged to a cabin washing transverse branch pipeline 7 and an elbow 9 through a cabin washing main pipeline 6, a branch main valve 5 and a cabin washing vertical branch pipeline 8, and is discharged to a cabin washing machine 2 through a cabin washing isolation valve 4 and a spectacle flange 3, and the cabin washing machine 2 is driven to carry out cabin washing operation on a cargo cabin II.

As shown in fig. 2, the deck fixing device 12 is directly welded on the main deck I, and the cabin washing machine end pipeline fixing device 1 is detachably fixed on the main deck I through the deck fixing device 12. As shown in fig. 3 and 4, the tank washer end pipeline fixing device 1 is composed of a short pipe 112 with flanges 111 mounted at two ends, a transverse toggle plate 113 along the direction of the short pipe 112, a vertical toggle plate 114 perpendicular to the transverse toggle plate 113, and a first seat plate 115 transversely disposed at the junction of the lower ends of the transverse toggle plate 113 and the vertical toggle plate 114. Wherein: the connection between the flange 111, the

short pipes

112, 113, the transverse toggle plate, the vertical toggle plate 114 and the seat plate 115 is preferably welded.

As shown in fig. 5, the deck fixing device 12 is composed of a second seat plate 122 horizontally disposed, a support plate vertically disposed below the second seat plate 122, and two toggle plates 121 vertically fixed on both sides of the support plate, wherein: the toggle plate 121 and the seat plate 122 are connected by welding. The second seat plate 122 of the deck fastening device 12 is provided with a bolt hole 123 for fastening the first seat plate 115 at the lower part of the cabin washing machine end pipeline fastening device 1.

All the devices and parts of the invention adopt stainless steel SUS316L with prolonged service life.

During the use, the high-pressure cabin washing water in the cabin washing main pipeline 6 flows into the cabin washing transverse branch pipeline 7 and the elbow 9 through the branch pipe main valve 5 and the cabin washing vertical branch pipe 8, then flows into the cabin washing machine 2 through the cabin washing isolation valve 4 and the glasses flange 3, and drives the cabin washing machine 2 to carry out cabin washing operation on the cargo hold. The medium in the transverse branch pipeline 7 is high-pressure water, so that the pipeline deformation is easily caused; the transverse branch pipeline 7 is long, the ship body deforms, the pipeline is easy to deform, the impact of high-pressure water inside the elbow 9 on the pipeline can be effectively reduced, on the other hand, the pipeline stress caused by the deformation of the ship body can be released, and the risk of pipeline leakage caused by overlarge local stress of the pipeline is prevented. When the cabin washing machine 2 works normally, the cabin washing machine is driven by high-pressure water and vibrates greatly, and the end part of the cabin washing machine is provided with the pipeline fixing device 1 and the deck fixing device 12, so that the end part of the cabin washing machine is tightly fixed on the main deck I, and the leakage accident caused by damage to the main deck structure and the end flange due to vibration of the cabin washing machine 2 is prevented. The end part of the tank washing machine 2 is provided with a glasses flange 3 and a tank washing isolating valve 4, and the tank washing machine is protected by two ways, so that dangerous goods in an effective isolating tank can be prevented from overflowing to other goods tanks when the tank washing machine is not in use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be able to cover the technical solutions and the inventive concepts of the present invention within the technical scope of the present invention.

Claims

1. An FPSO tank wash system, comprising: the device comprises a tank washing machine end pipeline fixing device (1), a tank washing machine (2), a spectacle flange (3), a tank washing isolation valve (4), a branch pipe main valve (5), a tank washing main pipeline (6), a tank washing transverse branch pipeline (7) and a tank washing vertical branch pipe (8);

the tank washing machine (2) is fixed on a main deck (I), the tank washing machine (2) is connected with the spectacle flange (3) through a tank washing machine end pipeline fixing device (1), the other side of the spectacle flange (3) is connected with a tank washing isolation valve (4), the tank washing isolation valve (4) is connected with a tank washing transverse branch pipeline (7), and the tank washing transverse branch pipeline (7) is communicated with a vertically arranged tank washing vertical branch pipeline (8) and is connected with a tank washing main pipeline (6) through the branch main valve (5);

the tank washer end pipeline fixing device (1) is detachably fixed on the main deck (I);

the tank washer end pipeline fixing device (1) is composed of a short pipe (112) with flanges (111) mounted at two ends, a transverse toggle plate (113) in the direction of the short pipe (112), a vertical toggle plate (114) perpendicular to the transverse toggle plate (113), and a first seat plate (115) transversely arranged at the joint of the transverse toggle plate (113) and the lower end of the vertical toggle plate (114).

2. The FPSO tank washing system according to claim 1, wherein the tank washer end pipe fixing device (1) is fixedly connected to the main deck (I) by a deck fixing device (12).

3. The FPSO tank washing system according to claim 2 wherein the deck fixing means (12) comprises a horizontally disposed second seat plate (122), a vertically disposed support plate below the second seat plate (122), and two toggle plates (121) vertically fixed to either side of the support plate.

4. The FPSO tank washing system according to claim 3 wherein the second seat plate (122) of the deck fixture (12) is provided with bolt holes (123) for fixing the first seat plate (115) of the lower part of the tank washer end pipe fixture (1).

5. The FPSO tank washing system according to claim 1 wherein the turns of the tank-washing lateral branch pipes (7) are provided with elbows (9).