A cooling water system for a self-elevating, self-propelled offshore platform

Abstract

This utility model provides a cooling water system for a self-elevating, self-propelled offshore platform, including a seawater storage tank, a seawater valve box, a seawater cooling pump set, a submersible pump, and a seawater main pipe. The seawater storage tank is connected to the seawater cooling pump set via pipelines, and a shut-off valve is installed on the pipeline between the seawater storage tank and the seawater cooling pump set. This cooling water system for a self-elevating, self-propelled offshore platform, through the coordinated use of the seawater valve box, seawater main pipe, seawater cooling pump set, seawater storage tank, and submersible pump set, activates three water supply modes during the platform's self-propelled operation, when the platform is raised and standing, and during the platform's raising and lowering processes, continuously providing seawater cooling.

Description

Technical Field

[0001] This utility model belongs to the field of cooling water for offshore platforms, and in particular relates to a cooling water system for self-elevating and self-propelled offshore platforms. Background Technology

[0002] Currently, self-elevating and self-propelled offshore platforms possess the capability for self-propulsion at sea and the ability to rise above sea level and dock with drilling platforms. However, when the offshore platform is raised and standing upright, the seawater valve box is unusable because it is far above sea level, necessitating a halt to seawater supply. Furthermore, during the platform's ascent and descent, the seawater valve box is also far above sea level, making it impossible to draw water from it, and using submersible pumps for water extraction is inconvenient. Summary of the Invention

[0003] In view of this, the present invention aims to provide a cooling water system for a self-elevating and self-propelled marine platform, which is suitable for self-elevating and self-propelled marine platforms and can provide seawater cooling when the platform is raised and standing, when the platform is self-propelled, and during the process of raising and lowering the platform.

[0004] To achieve the above objectives, the technical solution of this utility model is implemented as follows:

[0005] A cooling water system for a self-elevating, self-propelled marine platform includes a seawater storage tank, a seawater valve box, a seawater cooling pump group, a submersible pump, and a seawater main pipe. The seawater storage tank is connected to the seawater cooling pump group through a pipeline, and a shut-off valve is installed on the pipeline between the seawater storage tank and the seawater cooling pump group.

[0006] The seawater valve box is located at the bottom of the offshore platform. The seawater valve box is connected to the seawater cooling pump group through a pipeline. A shut-off valve is installed on the pipeline between the seawater valve box and the seawater cooling pump group. The seawater cooling pump group is connected to the seawater main pipe through a first pipeline. A shut-off valve is installed on the first pipeline.

[0007] The submersible pumps include multiple units, each connected to both ends of a seawater main pipe via pipelines; a shut-off valve is installed on the pipeline between each submersible pump and the seawater main pipe, and the seawater main pipe is connected to the cooling water systems of multiple offshore platform equipment via pipelines.

[0008] Furthermore, the seawater cooling pump assembly includes multiple cooling pumps, and the inlet pipes of the multiple cooling pumps are connected in parallel to a first branch and a second branch, respectively. The first branch is connected to the seawater valve box; the second branch is connected to the seawater storage tank; and a shut-off valve is installed on the first branch and the second branch respectively.

[0009] Furthermore, each of the cooling pumps is equipped with a shut-off valve on its outlet pipe.

[0010] Furthermore, the cooling pump comprises three units.

[0011] Furthermore, the seawater valve box includes two valve boxes, which are interconnected by a second pipeline. Each seawater valve box is equipped with a shut-off valve, and the first branch is connected to the seawater valve box via the second pipeline.

[0012] Furthermore, the cooling system includes marine refrigeration equipment, electric propulsion heat exchanger, bow thruster oil cooler, marine air conditioning equipment, and rudder propeller cooler.

[0013] Furthermore, the cooling system also includes air conditioning in the machine repair room, air conditioning in the switchboard room, and a heat exchanger for the generator set.

[0014] Compared with existing technologies, the cooling water system for a self-elevating, self-propelled marine platform described in this utility model has the following advantages:

[0015] The cooling water system of the self-elevating and self-propelled marine platform described in this utility model allows for the following: when the marine platform is self-propelled, seawater is directly drawn from the ocean through a seawater cooling pump set and a seawater valve box to supply the cooling system; when the platform is raised and standing, a seawater submersible pump is placed in the sea to draw water for the cooling system; during the platform's raising and lowering processes, the seawater cooling pump set draws seawater from the seawater storage tank for the cooling system, thus achieving continuous seawater cooling. Attached Figure Description

[0016] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0017] Figure 1 This is a schematic diagram of the overall structure of the cooling system described in an embodiment of the present invention;

[0018] Figure 2 This is a schematic diagram of the seawater cooling pump unit and its connection structure according to an embodiment of the present invention.

[0019] Explanation of reference numerals in the attached figures:

[0020] 1-Seawater storage tank; 2-Seawater valve box; 3-Seawater cooling pump set; 4-Submersible pump; 5-Marine refrigeration equipment; 6-Electric propulsion unit; 8-Bow thruster unit; 9-Marine air conditioning equipment; 10-Rudder propeller unit; 11-Air conditioning in the engine room; 12-Air conditioning in the switchboard room; 13-Generator set; 15-Lifting device; 20-Second pipeline; 21-First pipeline; 22-Seawater main pipe; 23-Stop valve; 101-Cooling pump; 102-First branch; 103-Second branch. Detailed Implementation

[0021] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0022] The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0023] like Figure 1 As shown, a cooling water system for a self-elevating, self-propelled offshore platform includes a seawater storage tank 1, a seawater valve box 2, a seawater cooling pump assembly 3, a submersible pump 4, and a seawater main pipe 22. The seawater storage tank 1 is connected to the seawater cooling pump assembly 3 via a pipeline, and a shut-off valve is installed on the pipeline between the seawater storage tank 1 and the seawater cooling pump assembly 3. The seawater valve box 2 is located at the bottom of the offshore platform and is connected to the seawater cooling pump assembly 3 via a pipeline, and a shut-off valve is installed on the pipeline between the seawater valve box 2 and the seawater cooling pump assembly 3. The seawater cooling pump assembly 3 is connected to the seawater main pipe 22 via a first pipeline 21, and a shut-off valve is installed on the first pipeline 21. The submersible pump 4 includes multiple units, each connected to both ends of the seawater main pipe 22 via pipelines. A shut-off valve is installed on the pipeline between each submersible pump 4 and the seawater main pipe 22, and the shut-off valves are used for switching between submersible pumps that serve as backups for each other. The seawater main pipe 22 is connected to the cooling systems of multiple devices via pipelines.

[0024] When the platform is self-propelled or floating, the seawater cooling pump unit 3 draws seawater from the seawater valve box 2 and delivers it to the seawater main pipe 22 for cooling the equipment. When the platform is raised and standing, the seawater cooling pump unit 3 cannot draw water from the seawater valve box because the seawater valve box 2 is off the sea surface. At this time, the submersible pump 4, which is placed in the seawater, draws water from the sea and delivers it to the seawater main pipe 22 for cooling the equipment.

[0025] like Figure 2 As shown, the seawater cooling pump set 3 includes multiple cooling pumps 101. The inlet pipes of the multiple cooling pumps 101 are connected in parallel to a first branch 102 and a second branch 103. The first branch 102 is connected to the seawater valve box 2; the second branch 103 is connected to the seawater storage tank 1; and a shut-off valve 23 is installed on the first branch 102 and the second branch 103 respectively. A shut-off valve 23 is also installed on the outlet pipes of the multiple cooling pumps 101. The cooling pump 101 includes three units. A shut-off valve 23 is installed on each unit for switching between submersible pumps that serve as backups.

[0026] like Figure 1 , Figure 2 As shown, the seawater valve box 2 includes two valve boxes 2, which are interconnected by a second pipeline 20. Each seawater valve box 2 is equipped with a shut-off valve 23. The first branch 102 is connected to the seawater valve box 2 via the second pipeline 20. The shut-off valve 23 controls the operation, allowing for a one-in-one-outstand mode.

[0027] like Figure 1As shown, the marine platform equipment includes marine refrigeration equipment 5, electric propulsion unit 6, bow thruster 8, marine air conditioning equipment 9, and rudder propeller unit 10. The marine platform equipment also includes air conditioning in the machine repair room 11, air conditioning in the switchboard room 12, generator set 13, and lifting device 15.

[0028] The working principle of a cooling water system for a self-elevating, self-propelled offshore platform is as follows: When the offshore platform is self-propelled, seawater is directly drawn from the ocean by the seawater cooling pump set 3 through the seawater main pipe 22 and the seawater valve box 2 and supplied to the cooling system; when the platform is raised and standing, the seawater valve box 2 cannot be used because it is far from the sea surface. The seawater submersible pump 4 is placed in the sea to draw water for the cooling system; during the platform's raising and lowering, the seawater valve box 2 cannot be used to draw water, and it is inconvenient to use the seawater submersible pump 4 to draw water. At this time, the seawater cooling pump set 3 is used to draw seawater from the seawater storage tank 1 for the cooling system.

[0029] A cooling water system for a self-elevating, self-propelled offshore platform uses a combination of a seawater valve box, a seawater main pipe, a seawater cooling pump set, a seawater storage tank, and a submersible pump set. The system activates three water supply modes during the platform's self-propelled operation, when the platform is raised and standing, and during the platform's raising and lowering processes, providing continuous seawater cooling.

[0030] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A cooling water system for a self-elevating, self-propelled offshore platform, characterized in that: It includes a seawater storage tank (1), a seawater valve box (2), a seawater cooling pump group (3), a submersible pump (4) and a seawater main pipe (22). The seawater storage tank (1) is connected to the seawater cooling pump group (3) through a pipeline. A shut-off valve is installed on the pipeline between the seawater storage tank (1) and the seawater cooling pump group (3). The seawater valve box (2) is located at the bottom of the offshore platform. The seawater valve box (2) is connected to the seawater cooling pump group (3) through a pipeline. A shut-off valve is installed on the pipeline between the seawater valve box (2) and the seawater cooling pump group (3). The seawater cooling pump group (3) is connected to the seawater main pipe (22) through the first pipeline (21). A shut-off valve is installed on the first pipeline (21). The submersible pump (4) includes multiple units, and the multiple submersible pumps (4) are respectively connected to both ends of the seawater main pipe (22) through pipelines; a shut-off valve is respectively installed on the pipeline between each submersible pump (4) and the seawater main pipe (22), and the seawater main pipe (22) is connected to the cooling water system of multiple marine platform equipment through pipelines.

2. The cooling water system for a self-elevating, self-propelled offshore platform according to claim 1, characterized in that: The seawater cooling pump set (3) includes multiple cooling pumps (101). The inlet pipes of the multiple cooling pumps (101) are connected in parallel to the first branch (102) and the second branch (103). The first branch (102) is connected to the seawater valve box (2); the second branch (103) is connected to the seawater storage tank (1); and the first branch (102) and the second branch (103) are respectively equipped with shut-off valves.

3. The cooling water system for a self-elevating, self-propelled offshore platform according to claim 2, characterized in that: Each of the cooling pumps (101) is equipped with a shut-off valve on its outlet pipe.

4. The cooling water system for a self-elevating, self-propelled offshore platform according to claim 2, characterized in that: The cooling pump (101) comprises 3 units.

5. The cooling water system for a self-elevating, self-propelled offshore platform according to claim 2, characterized in that: The seawater valve box (2) includes two, and the two seawater valve boxes (2) are interconnected through the second pipeline (20). Each seawater valve box (2) is equipped with a shut-off valve. The first branch (102) is connected to the seawater valve box (2) through the second pipeline (20).

6. The cooling water system for a self-elevating, self-propelled offshore platform according to claim 1, characterized in that: The marine platform equipment includes marine refrigeration equipment (5), electric propulsion system (6), bow thruster (8), marine air conditioning system (9), and rudder propeller system (10).

7. The cooling water system for a self-elevating, self-propelled offshore platform according to claim 6, characterized in that: The offshore platform equipment also includes an air conditioner (11) in the machine repair room, an air conditioner (12) in the switchboard room, a generator set (13), and a lifting device (15).

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