Fire fighting system for drilling platform

By designing a seawater treatment tank and protective cover on the drilling platform, the fire protection system for the drilling platform has solved the problems of easy fire spread and easy damage to nozzles, and achieved effective fire control and equipment protection.

CN224462179UActive Publication Date: 2026-07-07TIANJIN RUIHANG OILFIELD TECH SERVICE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TIANJIN RUIHANG OILFIELD TECH SERVICE CO LTD
Filing Date
2025-06-25
Publication Date
2026-07-07

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Abstract

This utility model discloses a fire protection system for drilling platforms, including a drilling platform and a seawater treatment tank installed inside. A semi-permeable membrane is installed in the middle of the seawater treatment tank, dividing the interior into a seawater chamber and a freshwater chamber. A high-pressure water pump corresponding to the seawater chamber is installed on the top of the seawater treatment tank, and a pumping pipe is installed at the input end of the high-pressure water pump. A water inlet corresponding to the freshwater chamber is also installed on the top of the seawater treatment tank. Multiple protective covers are installed on the drilling platform, with a flame detector installed on one side of each cover and an alarm installed on the top. This utility model, through the seawater treatment tank, allows the high-pressure water pump to draw seawater into the seawater chamber for treatment. Under pressure, the seawater undergoes reverse osmosis through the semi-permeable membrane into the freshwater chamber, thereby increasing the freshwater level in the freshwater chamber. This seawater conversion treatment facilitates the use of the converted freshwater for firefighting, reducing the risk of direct use and damage to equipment at sea.
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Description

Technical Field

[0001] This utility model relates to the field of fire protection technology for drilling platforms, and specifically to a fire protection system for drilling platforms. Background Technology

[0002] Offshore drilling platforms are mainly used as offshore structures for drilling wells. Offshore drilling platforms have numerous fire hazards, compact structures, and limited spaces, making them high-fire-risk areas. Fires are difficult to control, and personnel and structures require high levels of fire protection. Therefore, it is necessary to use corresponding drilling platform fire protection systems for prevention and control.

[0003] Currently, fires on offshore drilling platforms are highly likely to spread, and water resources available for firefighting at sea are scarce. Directly using seawater for firefighting can easily damage equipment on the drilling platform. Furthermore, the environment on the drilling platform is complex and confined, making it prone to damage to fire sprinklers. Therefore, there is an urgent need to design a fire protection system for drilling platforms to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a fire protection system for drilling platforms to address the aforementioned shortcomings in the prior art.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A drilling platform fire protection system includes a drilling platform, a seawater treatment tank installed inside the drilling platform, a semi-permeable membrane disposed in the middle of the seawater treatment tank, the semi-permeable membrane separating the interior of the seawater treatment tank into a seawater chamber and a freshwater chamber, a high-pressure water pump corresponding to the seawater chamber installed on the top of the seawater treatment tank, a water pumping pipe installed at the input end of the high-pressure water pump, and a water inlet corresponding to the freshwater chamber located on the top of the seawater treatment tank; multiple protective covers are provided on the drilling platform, a flame detector is installed on one side of each protective cover, an alarm is installed on the top of each protective cover, a water pump is installed inside each protective cover, a connecting pipe is provided between the water pump and the freshwater chamber, a sprinkler head is slidably fitted inside the protective cover, and the output end of the water pump is connected to the sprinkler head.

[0007] Furthermore, a multi-port pipe corresponding to the freshwater chamber is installed on one side of the seawater treatment tank. The multi-port pipe is connected to multiple connecting pipes. Multiple mounting blocks are sleeved around the periphery of the connecting pipes. The mounting blocks are connected to the top of the inner wall of the drilling platform.

[0008] Furthermore, a fixing frame is provided at one end of the water pumping pipe, a filter screen is provided inside the fixing frame, and fixing bolts are threaded onto the opposite sides of the fixing frame.

[0009] Furthermore, the protective cover includes a vertical cylinder and an inclined cylinder, the inclined cylinder is installed at the top of the vertical cylinder, the vertical cylinder is connected to the inclined cylinder, the nozzle is slidably fitted inside the inclined cylinder, and one end of the inclined cylinder is rotatably fitted with two baffles.

[0010] Furthermore, the inner wall of the inclined cylinder is provided with sliding grooves on both opposite sides, and the nozzle is provided with sliders on both opposite outer sides. The two sliders are respectively slidably engaged with the two sliding grooves. A handle is installed on the top of the nozzle, and a handle groove is opened on the top of the inclined cylinder to slidably engage with the handle.

[0011] Furthermore, a flexible hose is installed between one end of the nozzle and the output end of the water pump, and the flexible hose is located inside the protective cover.

[0012] In the above technical solution, the drilling platform fire protection system provided by this utility model has the following beneficial effects:

[0013] The seawater treatment tank allows a high-pressure water pump to draw seawater into the seawater chamber for treatment. Under pressure, the seawater undergoes reverse osmosis through a semi-permeable membrane into the freshwater chamber, increasing the freshwater level. This seawater conversion process facilitates the use of the converted freshwater for firefighting, reducing the risk of damage to equipment from direct use at sea. A protective cover protects the nozzles, minimizing the risk of damage. During this process, flame detectors monitor the drilling platform, facilitating the activation of the fire suppression system and alerting the system in the event of a fire, triggering an alarm. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the drilling platform structure provided for an embodiment of the fire protection system for a drilling platform according to the present invention.

[0016] Figure 2 This is a schematic diagram of the seawater treatment tank structure provided for an embodiment of a fire protection system for a drilling platform according to the present invention.

[0017] Figure 3 This is an embodiment of a fire protection system for a drilling platform according to the present invention. Figure 2 Enlarged diagram of point A in the middle.

[0018] Figure 4 This is a schematic diagram of the protective cover structure provided for an embodiment of a fire protection system for a drilling platform according to the present invention.

[0019] Figure 5 A fire protection system flowchart provided for an embodiment of a drilling platform fire protection system according to this utility model.

[0020] 1. Drilling platform; 2. Seawater treatment tank; 3. Semi-permeable membrane; 4. High-pressure water pump; 5. Pumping pipe; 6. Protective cover; 7. Flame detector; 8. Alarm; 9. Pumping pump; 10. Connecting pipe; 11. Nozzle; 12. Multi-port pipe; 13. Mounting block; 14. Fixing frame; 15. Filter bag; 16. Fixing bolt; 17. Baffle; 18. Slide groove; 19. Slider; 20. Handle; 21. Handle groove; 22. Hose. Detailed Implementation

[0021] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0022] like Figure 1-5 As shown in the figure, this utility model provides a drilling platform fire protection system.

[0023] The system includes a drilling platform 1, a seawater treatment tank 2 installed inside the drilling platform 1, a semi-permeable membrane 3 in the middle of the seawater treatment tank 2, which separates the interior of the seawater treatment tank 2 into a seawater chamber and a freshwater chamber, a high-pressure water pump 4 corresponding to the seawater chamber installed on the top of the seawater treatment tank 2, a water pumping pipe 5 installed at the input end of the high-pressure water pump 4, and a water inlet corresponding to the freshwater chamber installed on the top of the seawater treatment tank 2; multiple protective covers 6 are installed on the drilling platform 1, a flame detector 7 is installed on one side of the protective cover 6, an alarm 8 is installed on the top of the protective cover 6, a water pump 9 is installed inside the protective cover 6, a connecting pipe 10 is provided between the water pump 9 and the freshwater chamber, a nozzle 11 is slidably fitted inside the protective cover 6, and the output end of the water pump 9 is connected to the nozzle 11.

[0024] Reference Figure 2 In this embodiment, a multi-port pipe 12 corresponding to the freshwater chamber is installed on one side of the seawater treatment tank 2. The multi-port pipe 12 is connected to multiple connecting pipes 10. Multiple mounting blocks 13 are sleeved on the periphery of the connecting pipes 10, and the mounting blocks 13 are connected to the top of the inner wall of the drilling platform 1. Through the multi-port pipe 12, the multi-port pipe 12 can be connected to multiple connecting pipes 10, and corresponding nozzles 11 can be installed on the drilling platform 1 for fire extinguishing. The periphery of the connecting pipes 10 is coated with fire-retardant paint to reduce the damage to the connecting pipes 10 caused by fire.

[0025] Reference Figure 3In this embodiment, a fixing frame 14 is provided at one end of the water pumping pipe 5, and a filter screen 15 is provided inside the fixing frame 14. Fixing bolts 16 are threaded onto both sides of the fixing frame 14. The filter screen 15 can filter the seawater pumped by the water pumping pipe 5, reducing the amount of debris entering the water pumping pipe 5. The fixing frame 14 can be disassembled by adjusting the fixing bolts 16 to clean the filter screen 15.

[0026] Reference Figure 4 In this embodiment, the protective cover 6 includes a vertical cylinder and an inclined cylinder. The inclined cylinder is installed at the top of the vertical cylinder and is connected to the vertical cylinder. The nozzle 11 is slidably fitted inside the inclined cylinder, and two baffles 17 are rotatably fitted at one end of the inclined cylinder. The inclined cylinder allows the nozzle 11 to be tilted, and the two baffles 17 can protect the opening of the inclined cylinder.

[0027] Reference Figure 4 In this embodiment, the inner wall of the inclined cylinder is provided with grooves 18 on both opposite sides, and the nozzle 11 is provided with sliders 19 on both opposite outer sides. The two sliders 19 are respectively slidably engaged with the two grooves 18. A handle 20 is installed on the top of the nozzle 11, and a handle groove 21 is opened on the top of the inclined cylinder to slidably engage with the handle 20. By using the handle 20, it can be pulled to move, so that the handle 20 moves along the handle groove 21. The movement of the handle 20 will drive the nozzle 11 to move, so that the nozzle 11 drives the sliders 19, and the sliders 19 will move along the grooves 18.

[0028] Reference Figure 4 In this embodiment, a flexible hose 22 is installed between one end of the nozzle 11 and the output end of the water pump 9, and the flexible hose 22 is located inside the protective cover 6. The flexible hose 22 allows the nozzle 11 to move within a certain range.

[0029] Working principle: In use, first, install the protective cover 6 at the required location on the drilling platform 1, then connect the connecting pipe 10, so that one end of the connecting pipe 10 is connected to the freshwater chamber and the other end is connected to the water pump 9. Then, add a certain amount of freshwater to the freshwater chamber in the seawater treatment tank 2 through the water inlet. After that, start the high-pressure water pump 4, so that the high-pressure water pump 4 draws seawater through the water pump pipe 5. The water pump pipe 5 will enter the seawater chamber in the seawater treatment tank 2. Under the action of pressure, the seawater in the seawater chamber will pass through the semi-permeable membrane 3, so that the seawater will reverse osmosis into the freshwater chamber, so that the seawater in the seawater chamber is gradually treated into freshwater, so that the freshwater can be used for fire fighting on the drilling platform 1. The flame detector 7 will continuously monitor the fire situation of the drilling platform 1. When a fire occurs, it will activate the fire protection system, so that the alarm 8 will sound an alarm and the water pump 9 will be started. The water pump 9 will draw freshwater through the connecting pipe 10, so that the freshwater will be sprayed out from the nozzle 11 for fire fighting. During this period, the nozzle 11 in the protective cover 6 can be taken out for fire fighting.

[0030] Reference Figure 5 In another embodiment provided by this utility model, the fire protection system includes the following modules:

[0031] Automatic processing module: The automatic processing module includes a monitoring module that works with the flame detector 7, an alarm module that works with the alarm 8, a fire-fighting module that works with the water pump 9, and a water replenishment module that works with the high-pressure water pump 4. It can automatically monitor the fire situation on the drilling platform 1, and display the corresponding warning reminder on the alarm 8 according to the monitoring situation. When a fire occurs, it will automatically activate the water pump 9 to extinguish the fire. Under normal circumstances, it can automatically replenish water and convert seawater into fresh water.

[0032] Manual handling module: Allows staff to manually start high-pressure water pump 4 and water pump 9 for water replenishment and fire fighting, reducing the risk of fire on drilling platform 1.

[0033] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A drilling platform fire protection system, comprising a drilling platform (1), characterized in that, The drilling platform (1) is equipped with a seawater treatment tank (2). A semi-permeable membrane (3) is installed in the middle of the seawater treatment tank (2). The semi-permeable membrane (3) separates the interior of the seawater treatment tank (2) into a seawater chamber and a freshwater chamber. A high-pressure water pump (4) corresponding to the seawater chamber is installed on the top of the seawater treatment tank (2). A water pumping pipe (5) is installed at the input end of the high-pressure water pump (4). A replenishment device corresponding to the freshwater chamber is provided on the top of the seawater treatment tank (2). Water inlet; the drilling platform (1) is equipped with multiple protective covers (6), a flame detector (7) is installed on one side of the protective cover (6), an alarm (8) is installed on the top of the protective cover (6), a water pump (9) is installed inside the protective cover (6), a connecting pipe (10) is provided between the water pump (9) and the fresh water chamber, a nozzle (11) is slidably fitted inside the protective cover (6), and the output end of the water pump (9) is connected to the nozzle (11).

2. The drilling platform fire protection system according to claim 1, characterized in that, A multi-port pipe (12) corresponding to the freshwater chamber is installed on one side of the seawater treatment tank (2). The multi-port pipe (12) is connected to multiple connecting pipes (10). Multiple mounting blocks (13) are sleeved on the periphery of the connecting pipes (10). The mounting blocks (13) are connected to the top of the inner wall of the drilling platform (1).

3. The drilling platform fire protection system according to claim 1, characterized in that, A fixing frame (14) is provided at one end of the water pumping pipe (5), a filter screen bag (15) is provided inside the fixing frame (14), and fixing bolts (16) are threaded on both sides of the fixing frame (14).

4. The drilling platform fire protection system according to claim 1, characterized in that, The protective cover (6) includes a vertical cylinder and an inclined cylinder. The inclined cylinder is installed at the top of the vertical cylinder and is connected to the inclined cylinder. The nozzle (11) is slidably fitted inside the inclined cylinder. One end of the inclined cylinder is rotatably fitted with two baffles (17).

5. A drilling platform fire protection system according to claim 4, characterized in that, The inner wall of the inclined cylinder is provided with sliding grooves (18) on both opposite sides, and the nozzle (11) is provided with sliders (19) on both opposite outer sides. The two sliders (19) are respectively slidably engaged with the two sliding grooves (18). A handle (20) is installed on the top of the nozzle (11), and a handle groove (21) is opened on the top of the inclined cylinder to slidably engage with the handle (20).

6. A drilling platform fire protection system according to claim 1, characterized in that, A hose (22) is installed between one end of the nozzle (11) and the output end of the water pump (9), and the hose (22) is located inside the protective cover (6).