Offshore air separation liquefied gas production platform

Abstract

The utility model provides an offshore air separation liquefied gas production platform which comprises a platform body, a frame arranged on the platform body, a plurality of supporting columns arranged at the bottom of the frame, a flat plate arranged on the frame, an air separation device arranged on the flat plate, the air separation device comprises a watertight bin, the watertight bin penetrates through the platform body, connecting pieces are arranged on the supporting columns, and the connecting pieces are connected with the platform body or / and the watertight bin. The connecting piece is connected with the platform or / and the watertight bin so that the frame, the platform and the watertight bin can be connected into a whole, the platform is not prone to being pushed when seawater impact is large or ships are berthed on the platform, the platform is stable, the overall structure is stable, and the air separation device operates normally. The connecting piece is simple in structure and convenient to mount and dismount, so that the connecting piece is stably mounted. Over-welding connection among the platform, the frame and the watertight bin is avoided, so that the situation that the whole structure needs a complex welding process is avoided, a large amount of manpower can be saved, and the whole structure is convenient to recycle and can be reused.

Description

Technical Field

[0001] The utility model relates to the field of liquefied gas production, in particular to an offshore air separation liquefied gas production platform. Background Art

[0002] New energy is developing rapidly, and offshore wind power is an example. When building an air separation liquefied gas production platform at sea, the distillation tower of the air separation liquefied gas production device should be at the bottom of the platform plane, and a series of explosion-proof and stability measures should be taken. However, the offshore environment changes rapidly, the tidal energy is large, and the seawater impacts the platform, causing the platform to shake. The sea surface will appear in an extreme situation relative to the design value of the platform surface, aggravating the platform shaking. At the same time, there will be moored ships on the offshore platform, and the ship pulling will also cause the platform to shake; at the same time, the platform and the pillars or plates are mostly connected by welding, the welding process is complicated, and it is difficult to disassemble and recycle. It cannot be recycled, and a lot of manpower is wasted. For this reason, we propose an offshore air separation liquefied gas production platform to solve the above problems. Utility Model Content

[0003] The utility model provides an offshore air separation liquefied gas production platform, which solves the problem that the platform is shaken when the seawater impact is large or when the platform is moored with ships, so that the overall structure is unstable; the platform and the pillars or plates are mostly connected by welding, the welding process is complicated, and manpower is wasted.

[0004] In order to solve the above technical problems, the technical solution adopted by the utility model is: an offshore air separation liquefied gas production platform, including a platform, a frame is provided on the platform, a plurality of pillars are provided at the bottom of the frame, a flat plate is provided on the frame, an air separation device is provided on the flat plate, the air separation device includes a watertight compartment, the watertight compartment passes through the platform, and connecting pieces are provided on the pillars, and the connecting pieces are connected to the platform and / or the watertight compartment.

[0005] In the preferred solution, a plurality of second pillars are provided at the bottom of the platform, an anchor winch is provided at one end of the flat plate, guardrails and partitions are provided on the flat plate, a hollow cylindrical watertight compartment is provided at the bottom of the flat plate, an explosion-proof armored compartment is provided on the inner wall of the watertight compartment, and a connecting seat is provided on the watertight compartment.

[0006] In a preferred solution, a filter, a compressor, a molecular sieve purifier, a heat exchanger, an expander and a distillation tower which are connected to each other through pipelines are arranged on the flat plate, and the distillation tower is installed in an explosion-proof armored cabin.

[0007] In a preferred solution, an oxygen storage tank, a nitrogen storage tank and a power supply system are provided on the flat plate, and both the oxygen storage tank and the nitrogen storage tank are connected to the distillation tower.

[0008] In a preferred solution, a hoop is provided on the pillar, the connecting piece rests on the hoop, the platform includes a plurality of platform plates, and a connecting beam is provided between the platform plates and the connecting piece.

[0009] In a preferred solution, the connecting member includes a plurality of arc-shaped members, one end of the arc-shaped member is provided with a dovetail groove, the other end of the arc-shaped member is provided with a trapezoidal protrusion, and the plurality of arc-shaped members are connected end to end.

[0010] In a preferred solution, the trapezoidal protrusion of the arc-shaped member is clamped on the dovetail groove of the adjacent arc-shaped member, the arc-shaped member is provided with a connecting hole and a lifting lug, and the connecting beam is connected to the connecting member through the connecting hole.

[0011] In a preferred solution, flat bottom grooves are provided at both ends of the arc-shaped member, a bolt hole is provided on one side of the flat bottom groove, and two adjacent arc-shaped members are connected by bolts installed on the bolt holes.

[0012] In a preferred solution, one end of the connecting beam is connected to the watertight compartment via a connecting seat on the watertight compartment, and the other end of the connecting beam is connected to the connecting piece.

[0013] The beneficial effects of the utility model are as follows: the distillation tower is relatively high, generally about 30 meters in height, and has a relatively high center of gravity. In order to ensure good stability of the flat plate, the lower tower of the distillation tower is designed to be below the flat plate plane, so that the center of gravity is lowered and the overall stability is increased. Since the lower tower of the flat plate is below the flat plate plane, an explosion-proof armored warehouse and a watertight warehouse are designed to increase safety protection and protect the safety of personnel operations.

[0014] A clamp is provided on the pillar, and a connecting piece is provided on the clamp. A plurality of arc-shaped pieces are connected end to end to form an integral connecting piece, and the connecting piece is connected to the platform and / or the watertight compartment so that the frame, the platform and the watertight compartment are connected into a whole. When the impact of seawater is large or the platform is moored with a ship, it is not easy to push the platform, so that the platform is stable. The connecting beam is supported between the pillar and the watertight compartment, or the connecting beam is supported between the pillar and the platform, so that the overall structure is stable and the air separation device operates normally.

[0015] The connector has a simple structure and is easy to install and disassemble. The connector is connected to the adjacent dovetail grooves through the trapezoidal protrusions of multiple arc-shaped parts, and then installed on the bolt holes through the bolts through the flat bottom grooves, so that the connector can be installed firmly. Avoid excessive welding between the platform, frame and watertight compartment, thereby avoiding the need for complex welding processes for the overall structure, saving a lot of manpower, making the overall structure easy to recycle and reuse, and having great promotion value. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The utility model is further described below in conjunction with the accompanying drawings and embodiments;

[0017] Figure 1 It is a top view of the overall structure of the utility model;

[0018] Figure 2 It is a front view of the local structure of the utility model;

[0019] Figure 3 It is an axonometric view of a local structure of the utility model;

[0020] Figure 4 It is an axonometric view of a local structure of the utility model;

[0021] Figure 5 It is an axonometric view of a local structure of the utility model;

[0022] Figure 6 It is an axial side view of the connector of the utility model;

[0023] Figure 7 It is an axial side view of the arc-shaped member of the utility model;

[0024] In the figure: platform 1; platform plate 101; table plate 102; frame 2; pillar 201; plate 3; anchor winch 301; guardrail 302; compartment 304; watertight compartment 305; explosion-proof armored compartment 306; air separation unit 4; filter 401; compressor 402; molecular sieve purifier 403; heat exchanger 404; expander 405; distillation tower 406; oxygen storage tank 407; nitrogen storage tank 408; power supply system 409; connector 5; arc part 501; connecting hole 502; lifting ear 503; dovetail groove 504; trapezoidal protrusion 505; flat bottom groove 506; bolt hole 507; connecting beam 6; hoop 7. DETAILED DESCRIPTION

[0025] Embodiment 1:

[0026] like Figure 1-7 In the embodiment, an offshore air separation liquefied gas production platform comprises a platform 1, a frame 2 is provided on the platform 1, a plurality of pillars 201 are provided at the bottom of the frame 2, a plate 3 is provided on the frame 2, an air separation device 4 is provided on the plate 3, the air separation device 4 comprises a watertight compartment 305, the watertight compartment 305 penetrates the platform 1, a connecting member 5 is provided on the pillar 201, and the connecting member 5 is connected to the platform 1 or / and the watertight compartment 305. According to the structure,

[0027] Flat plate 3 is equipped with an anchor winch 301 for anchoring and lifting anchor. Anchor winch 301 fixes flat plate 3 in a designated sea area. When lifting anchor, flat plate 3 is designed with guardrail 302, compartment 304, and watertight compartment 305 to ensure safety. Flat plate 3 is also designed with explosion-proof armored compartment 106 to prevent accidental explosion in air separation liquefied gas production to ensure platform safety. Flat plate 3 is also equipped with a ballast compartment to adjust the platform posture by adjusting the ballast water. Flat plate 3 is designed to be longer than 120m in length to suppress two sea waves to stabilize the platform. Flat plate 3 is equipped with an air separation device 4 for air separation liquefied gas production. Air separation device 4 includes filter 401, compressor 402, molecular sieve purifier 403, heat exchanger 404, expander 405, distillation tower 406, oxygen storage tank 407, nitrogen storage tank 408, and power supply system 409. The air passes through filter 401, is compressed by compressor 402, and is purified by molecular sieve purifier 403. It then passes through heat exchanger 404, expander 405, and distillation tower 406 for heat exchange, expansion, and distillation. Finally, liquid gases such as oxygen and nitrogen are produced and introduced into oxygen storage tank 407 and nitrogen storage tank 408 for storage.

[0028] The distillation tower 406 is relatively high, generally about 30 meters in height, and has a relatively high center of gravity. In order to ensure good stability of the plate 3, the lower tower of the distillation tower 406 is designed to be below the plane of the plate 3 to lower the center of gravity and increase overall stability. Since the lower tower of the plate 3 is below the plane of the plate 3, an explosion-proof armored warehouse 306 and a watertight warehouse 305 are designed to increase safety protection and protect the safety of personnel operations.

[0029] A clamp 7 is provided on the pillar 201, and a connecting piece 5 is provided on the clamp 7. A plurality of arc-shaped pieces 501 are connected end to end to form an integral connecting piece 5. The connecting piece 5 is connected to the platform 1 and / or the watertight compartment 305, so that the frame 2, the platform 1 and the watertight compartment 305 are connected as a whole. When the impact of seawater is large or the platform is moored with a ship, it is not easy to push the platform, so that the platform is stable. The connecting beam 6 is supported between the pillar 201 and the watertight compartment 305, or the connecting beam 6 is supported between the pillar 201 and the platform 1, so that the overall structure is stable and the air separation device 4 operates normally.

[0030] The connecting member 5 has a simple structure and is easy to install and disassemble. The connecting member 5 is clamped on the adjacent dovetail grooves 504 through the trapezoidal protrusions 505 of the multiple arc-shaped members 501, and then installed on the bolt holes 507 through the bolts passing through the flat bottom grooves 506, so that the connecting member 5 is installed firmly. It avoids excessive welding connection between the platform 1, the frame 2 and the watertight compartment 305, thereby avoiding the need for complex welding processes for the overall structure, which can save a lot of manpower, so that the overall structure is easy to recycle and can be reused.

[0031] In the preferred solution, a plurality of second pillars are provided at the bottom of the platform 1, an anchor winch 301 is provided at one end of the flat plate 3, a guardrail 302 and a compartment 304 are provided on the flat plate 3, a hollow cylindrical watertight compartment 305 is provided at the bottom of the flat plate 3, an explosion-proof armored compartment 306 is provided on the inner wall of the watertight compartment 305, and a connecting seat is provided on the watertight compartment 305. With this structure, the distillation tower 406 is relatively high, generally about 30 meters in height, and has a relatively high center of gravity. In order to make the flat plate 3 stable, the lower tower of the distillation tower 406 is designed to be below the plane of the flat plate 3, so that the center of gravity is lowered and the overall stability is increased. Since the lower tower of the flat plate 3 is below the plane of the flat plate 3, an explosion-proof armored compartment 306 and a watertight compartment 305 are designed to increase safety protection and ensure the safety of personnel operations.

[0032] In a preferred embodiment, a filter 401 , a compressor 402 , a molecular sieve purifier 403 , a heat exchanger 404 , an expander 405 and a distillation tower 406 which are connected to each other through pipelines are provided on the flat plate 3 , and the distillation tower 406 is installed in an explosion-proof armored cabin 306 .

[0033] In the preferred solution, the flat plate 3 is provided with an oxygen storage tank 407, a nitrogen storage tank 408 and a power supply system 409, and the oxygen storage tank 407 and the nitrogen storage tank 408 are connected to the distillation tower 406. With this structure, the flat plate 3 is equipped with an anchor winch 301 for anchoring and lifting anchors. The anchor winch 301 fixes the flat plate 3 in the designated sea area. When lifting anchors, the flat plate 3 is designed with a guardrail 302, a compartment 304, and a watertight compartment 305 to ensure safety. The flat plate 3 is also designed with an explosion-proof armored compartment 106 to prevent accidental explosions in the production of air separation liquefied gas to ensure the safety of the platform. The flat plate 3 is also provided with a ballast compartment to adjust the platform posture by adjusting the ballast water. The design length of the flat plate 3 is greater than 120m to suppress two sea waves to stabilize the platform. The plate 3 is equipped with an air separation device 4 for producing air-separated liquefied gas, and the air separation device 4 includes a filter 401, a compressor 402, a molecular sieve purifier 403, a heat exchanger 404, an expander 405, a distillation tower 406, an oxygen storage tank 407, a nitrogen storage tank 408, and a power supply system 409. The air passes through the filter 401, is compressed by the compressor 402, and is purified by the molecular sieve purifier 403, and then passes through the heat exchanger 404, the expander 405, and the distillation tower 406 for heat exchange, expansion, and distillation, and finally produces liquid gas such as oxygen and nitrogen, which are introduced into the oxygen storage tank 407 and the nitrogen storage tank 408 for storage.

[0034] In a preferred solution, a hoop 7 is provided on the pillar 201, the connecting member 5 is against the hoop 7, the platform 1 includes a plurality of platform plates 101, and a connecting beam 6 is provided between the platform plate 101 and the connecting member 5. With this structure, the connecting beam 6 is supported between the pillar 201 and the watertight compartment 305, or the connecting beam 6 is supported between the pillar 201 and the platform 1, so that the overall structure is stable and the air separation device 4 operates normally.

[0035] In a preferred solution, the connector 5 includes a plurality of arc-shaped members 501, one end of the arc-shaped member 501 is provided with a dovetail groove 504, the other end of the arc-shaped member 501 is provided with a trapezoidal protrusion 505, and the plurality of arc-shaped members 501 are connected end to end. With this structure, the connector 5 is composed of a plurality of arc-shaped members 501 that can be opened and closed, the connector 5 can wrap around the pillar 201, and the connector 5 can be installed on the hoop 7, so that the connector 5 can be easily installed on the pillar 201.

[0036] In the preferred solution, the trapezoidal protrusion 505 of the arc-shaped member 501 is clamped on the dovetail groove 504 of the adjacent arc-shaped member 501, and the arc-shaped member 501 is provided with a connecting hole 502 and a lifting lug 503, and the connecting beam 6 is connected to the connecting member 5 through the connecting hole 502. With this structure, the connecting member 5 has a simple structure and is easy to install and disassemble. The connecting member 5 is clamped on the adjacent dovetail groove 504 through the trapezoidal protrusions 505 of the multiple arc-shaped members 501, and then installed on the bolt hole 507 through the flat bottom groove 506 by bolts, so as to facilitate the installation and stability of the connecting member 5. Avoiding excessive welding connection between the platform 1, the frame 2 and the watertight compartment 305, thereby avoiding the need for complex welding processes for the overall structure, can save a lot of manpower, so that the overall structure is easy to recycle and can be reused.

[0037] In a preferred solution, flat bottom grooves 506 are provided at both ends of the arc-shaped member 501 , a bolt hole 507 is provided on one side of the flat bottom groove 506 , and two adjacent arc-shaped members 501 are connected by being mounted on the bolt holes 507 by bolts.

[0038] In a preferred solution, one end of the connecting beam 6 is connected to the watertight compartment 305 through a connecting seat on the watertight compartment 305, and the other end of the connecting beam 6 is connected to the connecting member 5. According to this structure, one end of the connecting beam 6 is provided with a rib plate, one end of the connecting beam 6 is connected to the connecting member 5 through bolts, and the other end of the connecting beam 6 is connected to the platform plate 101 or the connecting seat on the watertight compartment 305 through bolts.

[0039] The above embodiments are only preferred technical solutions of the present invention and should not be regarded as limitations of the present invention. The protection scope of the present invention shall be the technical solutions recorded in the claims, including equivalent replacement solutions of the technical features in the technical solutions recorded in the claims. That is, equivalent replacement improvements within this scope are also within the protection scope of the present invention.

Claims

1. Offshore air separation liquefied gas production platform, characterized by: The invention comprises a platform (1), a frame (2) is provided on the platform (1), a plurality of pillars (201) are provided at the bottom of the frame (2), a flat plate (3) is provided on the frame (2), an air separation device (4) is provided on the flat plate (3), the air separation device (4) comprises a watertight chamber (305), the watertight chamber (305) passes through the platform (1), a connecting piece (5) is provided on the pillar (201), and the connecting piece (5) is connected to the platform (1) or / and the watertight chamber (305).

2. The offshore air separation liquefied gas production platform according to claim 1, characterized in that: A plurality of second pillars are provided at the bottom of the platform (1); an anchor winch (301) is provided at one end of the flat plate (3); a guardrail (302) and a partition (304) are provided on the flat plate (3); a hollow cylindrical watertight compartment (305) is provided at the bottom of the flat plate (3); an explosion-proof armored compartment (306) is provided on the inner wall of the watertight compartment (305); and a connecting seat is provided on the watertight compartment (305).

3. The offshore air separation liquefied gas production platform according to claim 1, characterized in that: A filter (401), a compressor (402), a molecular sieve purifier (403), a heat exchanger (404), an expander (405), and a distillation tower (406) are provided on the flat plate (3), and the distillation tower (406) is installed in an explosion-proof armored cabin (306).

4. The offshore air separation liquefied gas production platform according to claim 3 is characterized by: An oxygen storage tank (407), a nitrogen storage tank (408) and a power supply system (409) are provided on the flat plate (3), and both the oxygen storage tank (407) and the nitrogen storage tank (408) are connected to the distillation tower (406).

5. The offshore air separation liquefied gas production platform according to claim 1 is characterized by: A hoop (7) is provided on the support column (201), and the connecting member (5) abuts against the hoop (7). The platform (1) comprises a plurality of platform plates (101), and a connecting beam (6) is provided between the platform plates (101) and the connecting member (5).

6. The offshore air separation liquefied gas production platform according to claim 1, characterized in that: The connecting member (5) comprises a plurality of arc-shaped members (501), one end of the arc-shaped member (501) is provided with a dovetail groove (504), the other end of the arc-shaped member (501) is provided with a trapezoidal protrusion (505), and the plurality of arc-shaped members (501) are connected end to end.

7. The offshore air separation liquefied gas production platform according to claim 6, characterized in that: The trapezoidal protrusion (505) of the arc-shaped member (501) is clamped on the dovetail groove (504) of the adjacent arc-shaped member (501); the arc-shaped member (501) is provided with a connecting hole (502) and a lifting lug (503); and the connecting beam (6) is connected to the connecting member (5) through the connecting hole (502).

8. The offshore air separation liquefied gas production platform according to claim 6, characterized in that: Flat bottom grooves (506) are provided at both ends of the arc-shaped member (501), a bolt hole (507) is provided on one side of the flat bottom groove (506), and two adjacent arc-shaped members (501) are connected by being mounted on the bolt holes (507) via bolts.

9. The offshore air separation liquefied gas production platform according to claim 1, characterized in that: One end of the connecting beam (6) is connected to the watertight compartment (305) via a connecting seat on the watertight compartment (305), and the other end of the connecting beam (6) is connected to the connecting piece (5).

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