Fire extinguishing system of semi-submersible drilling platform
A technology for fire protection systems and drilling platforms, which is applied in fire protection equipment, earth-moving drilling, liquid variable volume machinery, etc.
Active Publication Date: 2020-02-07
DALIAN SHIPBUILDING IND
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Problems solved by technology
Classification society regulations generally only focus on basic conditions such as the displacement, location, and power supply of fire pumps, but rarely require the automatic control logic of fire pumps
Method used
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[0032] The specific implementation manner of the present invention will be described below in conjunction with the accompanying drawings.
[0033] Figure 1 to Figure 3 It is a schematic diagram of the fire protection system of a typical semi-submersible drilling platform. The left and right sides are each equipped with a variable frequency fire protection pressure pump and two direct-start main fire pumps. A first water pressure sensor 31 is installed at the output port of the pressure maintaining pump to measure the fire water pressure. The fire-fighting pressure maintaining pump and the main fire-fighting pump are simultaneously connected to the fire-fighting water circuit, and the fire-fighting water circuit is provided with a second water pressure sensor 32 . According to the preset logic, the control system automatically adjusts the speed of the fire-fighting pressure maintaining pump according to the pressure value of the first water pressure sensor 31 (PT-01 / 02), so a...
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The invention discloses a fire extinguishing system of a semi-submersible drilling platform. A variable frequency fire extinguishing pressure maintaining pump and two directly-starting main fire extinguishing pumps are arranged on each of the left board and the right board of the semi-submersible drilling platform. First water pressure sensors are installed at output ports of the fire extinguishing pressure maintaining pumps to measure fire extinguishing water pressure. The fire extinguishing pressure maintaining pumps and the main fire extinguishing pumps are connected to a fire extinguishingwater circuit at the same time, and the fire extinguishing water circuit is provided with a second water pressure sensor. A control system automatically regulates the rotating speeds of the fire extinguishing pressure maintaining pumps based on preset logics according to pressure values of the first water pressure sensors to maintain proper water pressure in a fire extinguishing pipeline. If a fire extinguishing subsystem is started or the fire extinguishing pipeline leaks to cause continuous dropping of water pressure, the control system automatically stops the main fire extinguishing pumpsbased on preset logics according to the pressure value of the second water pressure sensor to supplement fire extinguishing water.
Description
technical field [0001] The invention relates to a fire-fighting system for a semi-submersible drilling platform, more specifically, to a fire-fighting system for a semi-submersible drilling platform. Background technique [0002] As an active fire protection system, the fire protection system is crucial to the safety of semi-submersible drilling platforms. The fire pump is the core equipment of the fire protection system, responsible for providing water source for water-based fire protection subsystems such as fire hydrants, water mist systems, and water sprinkler systems. Classification society regulations generally only focus on basic conditions such as the displacement, location, and power supply of fire pumps, but rarely require the automatic control logic of fire pumps. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a fire protection system for a semi-submersible drilling platform, which can quickly provid...
Claims
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IPC IPC(8): F04B23/04F04B17/03F04B49/06F04B49/02F04B49/20F04B49/10F04B51/00E21B35/00
CPCE21B35/00F04B17/03F04B23/04F04B49/02F04B49/06F04B49/10F04B49/20F04B51/00
Inventor 邹成业唐志杰刘永歆王振宇范延品
Owner DALIAN SHIPBUILDING IND