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A semi-submersible drilling platform fire protection system

A technology for fire protection systems and drilling platforms, which is applied in earthwork drilling, fire protection equipment, pump control, etc., and can solve problems such as few requirements for automatic control logic of fire pumps

Active Publication Date: 2021-04-09
DALIAN SHIPBUILDING IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • A semi-submersible drilling platform fire protection system
  • A semi-submersible drilling platform fire protection system
  • A semi-submersible drilling platform fire protection system

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[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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Abstract

The invention discloses a fire protection system for a semi-submersible drilling platform, which relates to the field of semi-submersible drilling platforms. The left and right sides of the semi-submersible drilling platform are each equipped with a frequency-converting fire-fighting and pressure-maintaining pump and two direct-start main fire-fighting pumps and fire-fighting pressure-maintaining pumps. The output port of the outlet is equipped with a first water pressure sensor to measure the fire water pressure; the fire pressure maintaining pump and the main fire pump are connected to the fire water loop at the same time, and the fire water loop is equipped with a second water pressure sensor. According to the preset logic, the control system automatically adjusts the speed of the fire protection pressure maintaining pump according to the pressure value of the first water pressure sensor, so as to maintain an appropriate water pressure in the fire protection pipeline. If the fire-fighting subsystem is activated or the fire-fighting pipeline leaks, causing the water pressure to continue to drop, the control system will automatically start and stop the main fire pump to replenish fire-fighting water according to the preset logic and according to the pressure value of the second water pressure sensor.

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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Application Information

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Patent Type & Authority Patents(China)
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