KR-20260064929-A - SYSTEM AND METHOD FOR FIRE PROTECTION OF DRILLSHIP AND DRILLSHIP INCLUDING THE SAME

KR20260064929AKR 20260064929 AKR20260064929 AKR 20260064929AKR-20260064929-A

Abstract

One embodiment of the present invention provides a drilling vessel fire prevention system comprising: a plurality of first monitoring units that perform fire monitoring of a drill floor of a drilling vessel; a control unit that controls the spraying of firefighting water into a fire zone when a fire is detected according to the fire monitoring results, adjusts one or more of the spraying amount and spraying location of the firefighting water according to the monitoring results of the fire zone, and controls the spraying of firefighting water to stop when it is determined that the fire in the fire zone has been suppressed; and a plurality of second monitoring units that perform monitoring of the fire zone under the control of the control unit.

Inventors

조정준
김지용

Assignees

한화오션 주식회사

Dates

Publication Date: 20260508
Application Date: 20241030

Claims (18)

A plurality of first monitoring units that perform fire monitoring on the drill floor of the drilling vessel; A control unit that controls the spraying of firefighting water into a fire zone when a fire is detected according to the fire monitoring result above, adjusts one or more of the spraying amount and spraying location of the firefighting water according to the monitoring result of the fire zone above, and controls the spraying of the firefighting water to stop when it is determined that the fire suppression in the fire zone above is completed; and A plurality of second monitoring units that perform monitoring of the fire occurrence zone under the control of the above control unit, Drilling ship firefighting and disaster prevention system.
In Article 1, Each of the above plurality of first monitoring units is, Characterized by including one or more of a CCTV, a flame detector, a smoke detector, a temperature detector, an infrared flame detector, and a gas detector. Drilling ship firefighting and disaster prevention system.
In Article 1, Each of the above plurality of first monitoring units is grouped to include a plurality of sensors, Characterized by being arranged at predetermined intervals on the above drill floor, Drilling ship firefighting and disaster prevention system.
In Article 1, Each of the above plurality of second monitoring units is, Characterized by including one or more of a CCTV, a flame detector, a smoke detector, a temperature detector, an infrared flame detector, and a gas detector. Drilling ship firefighting and disaster prevention system.
In Article 1, The above control unit is, Characterized by recognizing the location of the fire occurrence zone using the plurality of first monitoring units and controlling one or more monitoring units among the plurality of second monitoring units that govern the fire occurrence zone to operate. Drilling ship firefighting and disaster prevention system.
In Article 5, The above control unit is, Using the second monitoring unit above, the first flame size of the fire occurrence zone is monitored, and When the size of the first flame increases, the amount of firefighting water sprayed is controlled to increase, Characterized by controlling the amount of fire extinguishing water sprayed to decrease when the size of the first flame decreases. Drilling ship firefighting and disaster prevention system.
In Article 5, The above control unit is, Using the second monitoring unit above, the first temperature of the fire occurrence zone is monitored, and When the above first temperature increases, the amount of firefighting water sprayed is controlled to increase, and Characterized by controlling the amount of fire extinguishing water sprayed to decrease when the first temperature decreases. Drilling ship firefighting and disaster prevention system.
In Article 5, The above control unit is, Using the second monitoring unit above, the second temperature of the fire occurrence zone is monitored, and Characterized by determining that fire suppression is complete and generating a fire termination signal when the second temperature is below a threshold value. Drilling ship firefighting and disaster prevention system.
In Article 1, A storage tank for storing mineralized carbon dioxide byproducts captured by the OCCS (Onboard Carbon Capture and Storage system) of the above-mentioned drilling vessel, and A grinding unit for grinding the above-mentioned by-products, and A storage unit for storing the crushed by-product, and Characterized by further including a supply unit that supplies the crushed by-product from the storage unit to the fire extinguishing water. Drilling ship firefighting and disaster prevention system.
In Article 9, Characterized by further including a drying unit for drying the by-product supplied from the storage tank to the crushing unit. Drilling ship firefighting and disaster prevention system.
In Article 10, Characterized by further including a moisture content analysis unit for measuring the moisture content of the byproduct supplied from the storage tank to the grinding unit. Drilling ship firefighting and disaster prevention system.
In Article 11, The above control unit is, Characterized by transferring the byproduct to the drying unit or bypassing the drying unit and supplying the byproduct to the grinding unit according to the measured moisture content. Drilling ship firefighting and disaster prevention system.
A drilling vessel fire prevention and control system comprising any one of claims 1 to 12, Drilling ship.
As a method for firefighting and disaster prevention on drilling ships, A first step of performing fire monitoring of the drill floor of a drilling vessel by a plurality of first monitoring units; A second step in which, by means of a control unit, fire water is sprayed into the fire zone when a fire is detected according to the fire monitoring result of the first step; A third step of controlling, by the above control unit, to perform monitoring of the fire occurrence zone after the second step through a plurality of second monitoring units; A fourth step of adjusting the amount and position of spraying the firefighting water according to the monitoring result of the fire occurrence zone of the third step by the control unit above; and A fifth step comprising controlling to stop the spraying of firefighting water when it is determined by the control unit that the fire suppression of the fire in the fire occurrence zone is completed. Drilling ship firefighting and disaster prevention methods.
In Article 14, The above third step is, The step of recognizing the location of the fire occurrence zone and, Characterized by including a step of controlling to operate one or more monitoring units among the plurality of second monitoring units that govern the fire occurrence zone. Drilling ship firefighting and disaster prevention methods.
In Article 14, The above fourth step is, A step of monitoring the first flame size of the fire occurrence zone using the second monitoring unit, and A step of controlling the amount of firefighting water sprayed to increase when the first flame size increases, and Characterized by including a step of controlling the amount of fire extinguishing water sprayed to decrease when the first flame size decreases. Drilling ship firefighting and disaster prevention methods.
In Article 14, The above fourth step is, A step of monitoring the first temperature of the fire occurrence zone using the second monitoring unit, and A step of controlling the amount of firefighting water sprayed to increase when the first temperature increases, and Characterized by including a step of controlling the amount of fire extinguishing water sprayed to decrease when the first temperature decreases. Drilling ship firefighting and disaster prevention methods.
In Article 14, The above fifth step is, A step of monitoring the second temperature of the fire occurrence zone using the second monitoring unit, and Characterized by including the step of determining that the fire is extinguished and generating a fire termination signal when the second temperature is below a threshold value. Drilling ship firefighting and disaster prevention methods.

Description

Drillship fire protection system and method and drillship including said system The present invention relates to a drilling rig firefighting and disaster prevention system and method and a drilling rig including said system, and more specifically, to a drilling rig firefighting and disaster prevention system and method capable of monitoring and automatic firefighting and disaster prevention for the drill floor of a drilling rig and a drilling rig including said system. In general, research on various offshore plants is being conducted to develop seabed resources, and examples of offshore drilling equipment include drillships, semi-submersible drilling rigs, and jack-up rigs. Due to the nature of the area, the drill floor of a drilling unit on a drillship or rig poses a very high risk of fire and explosion; therefore, regulations require the installation of deluges or fire water monitors to prepare for large-scale fires. Fire water monitoring equipment has the advantage of reducing the size of the main fire line and the capacity of the fire water pump because it requires a lower flow rate than flood control equipment as mandated by regulations; however, there is a risk that the equipment must be operated manually in the fire zone. Accordingly, there is a need for the development of technology that enables fire monitoring of drill floors on drilling vessels and the subsequent automatic fire prevention and control. FIG. 1 is an exemplary diagram of a drilling ship firefighting and disaster prevention system according to one embodiment of the present invention. FIG. 2 is an exemplary diagram showing the configuration of a drilling rig according to one embodiment of the present invention. FIG. 3 is an exemplary diagram showing the configuration of a drilling ship firefighting and disaster prevention system according to one embodiment of the present invention. FIG. 4 is an exemplary diagram showing the configuration of an OCCS according to one embodiment of the present invention. FIG. 5 is a flowchart showing the procedure of a drilling rig firefighting and disaster prevention method according to another embodiment of the present invention. The embodiments of the present invention are illustrative for the purpose of explaining the technical concept of the present invention. The scope of rights according to the present invention is not limited to the embodiments presented below or the specific description thereof. Hereinafter, embodiments of the present invention will be described with reference to the attached drawings. In the attached drawings, identical or corresponding components are given the same reference numerals. Furthermore, in the description of the embodiments below, the description of identical or corresponding components may be omitted. However, even if a description of a component is omitted, it is not intended that such component is not included in any embodiment. The gist of the present invention is that, in addition to the manual operation function of the fire water monitor, the drilling ship fire prevention and control system identifies the fire zone through CCTV (Closed-circuit television), flame detector, smoke detector, temperature sensor, infrared flame detector (IR camera), gas detector, etc., and then verifies the coverage area for each fire water monitor to automatically operate the fire water monitor and suppress the fire. FIG. 1 is an exemplary diagram of a drilling ship firefighting and disaster prevention system according to one embodiment of the present invention. As illustrated in FIG. 1, reference numeral 101 represents a drill floor and can indicate a protected area protected by the drilling rig fire prevention system (100). Reference numeral 102 represents a CCTV (Closed-circuit television) and can secure a visual view of the monitoring area through the CCTV. Reference numeral 103 represents a flame detector and can identify the location of a fire in the event of an explosion or mud ejection. Reference numeral 104 represents a smoke detector and can identify whether a fire has occurred through smoke caused by the fire. Reference numeral 105 represents a temperature sensor and can identify the temperature caused by the fire. Reference numeral 106 represents an infrared flame detector (IR camera) and can identify the location of a fire in the event of an explosion or mud ejection. Reference numeral 107 represents a gas detector and can identify the location of a gas ejection. Drawing symbol 108 represents a fire water monitor and can operate to spray fire water. The drilling ship fire prevention system (100) monitors fire through a fire detection/sensing unit composed of the aforementioned sensors (102, 103, 104, 105, 106, 107), and a fire alarm is activated when a fire is detected by the fire detection/sensing unit. At this time, the sensors (102, 103, 104, 105, 106, 107) can be grouped to establish a group-specific coverage area. These group-specific coverage areas can be placed