KR20150009080A

KR20150009080A - Flare ignition system using laser and method thereof

Info

Publication number: KR20150009080A
Application number: KR20130082672A
Authority: KR
Inventors: 김종윤
Original assignee: 대우조선해양 주식회사
Priority date: 2013-07-15
Filing date: 2013-07-15
Publication date: 2015-01-26

Abstract

The present invention relates to a flare ignition system and method using a laser, and more particularly, to a flare ignition system and method using a laser, in which a laser is used to perform direct ignition using a gas ignition point instead of a spark, And more particularly to a flare ignition system and method using a laser for facilitating maintenance and repair as well as installing ignition related equipment.
The present invention relates to a flare tip in which gas for burning is discharged; A laser generator for applying a laser to the flare tip to ignite the gas by heating the flare tip; And a laser generator controller for controlling the laser generator to irradiate a laser necessary for ignition of the gas, and a flare ignition method using the flare ignition system using the laser.

Description

[0001] The present invention relates to a flare ignition system using laser,

The present invention relates to a flare ignition system and method using a laser, and more particularly, to a flare ignition system and method using a laser, in which a gas is ignited using a laser at a long distance, and a passageway or a medium for ignition To a flare ignition system and method using a laser.

In general, offshore plants are involved in the development of marine resources. They include floating production storage offloading (FPSO), LNG FPSO, semi-submergible rig, jack-up platform, TLP Leg Platform), and the like.

The offshore plant is equipped with a flare facility that burns the remaining gas and discharges it to the atmosphere. Such a flare facility includes a flare tip with a flare tip that is installed at the top of the flare tower as the core of the facility and is particularly suitable for handling high temperatures And it is impossible to access the operator due to high temperature environment during combustion.

As a technique related to such a conventional flare tip, there is a flare stack tip of Korean Patent Laid-Open No. 10-2012-0048315, which comprises a plurality of first nozzles for emitting a combustible gas, A flare stack tip including ignition means for igniting a gas, wherein the first nozzle has a concentric spaced apart spacing, and a plurality of second nozzles for spraying the steam upward vertically on the outer side of the first nozzle Concentrate.

Conventional flare facilities, including this prior art, require gas to flow through the flare tip when flaring is needed and generate sparks around the flare tip through separate igniters, .

However, in the offshore plant, flaring of a large amount of gas is carried out, and since such flaring is carried out in case of emergency, if it is not properly ignited, it causes a lot of safety problems.

In order to improve this, various ignition methods have been developed, for example, an ignition method that generates an electric spark, and a method in which a shot with a gunpowder is actually fired to a portion with a flare tip, And an ignition method to be used.

However, such conventional ignition systems require equipment for transporting the medium to cause sparks, which requires much time and expense to install, maintain and repair the ignition related equipment.

Particularly, if a problem arises in an electric cable or a pipe carrying a bullet, it is difficult to solve this problem and it is difficult to replace the problematic parts.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide an ignition device that ignites a gas at a long distance using a gas ignition point rather than a spark, And to facilitate maintenance and repair as well as installation of ignition related equipment.

According to an aspect of the present invention, there is provided a flare ignition system provided in a flare facility, the flare tip including a flare tip through which gas for combustion is discharged; A laser generator for applying a laser to the flare tip to ignite the gas by heating the flare tip; And a laser igniter controller for controlling the laser generator to irradiate a laser necessary for ignition of gas.

The laser generator may be installed on a deck on which the flare tower is installed to irradiate the laser upward toward the flare tip located at the top of the flare tower.

The laser generator may heat a specific area of the portion where the gas is discharged from the flare tip to the laser output for the ignition of the gas for a predetermined time under the control of the laser generator controller.

According to another aspect of the present invention, there is provided a flare ignition method for a flare facility, comprising the steps of: irradiating a laser to a flare tip installed in a flare tower and discharging gas for burning; And a step of heating the flare tip by the laser irradiation so that the gas is ignited.

The step of irradiating the laser may irradiate a laser of an output necessary for ignition of the gas for a predetermined period of time to a specific region of the portion where the gas is discharged from the flare tip.

According to the present invention, it is possible to use a laser at a long distance to perform direct ignition using the ignition point of gas instead of spark, thereby avoiding the necessity of separately providing a passage or an intermediary for ignition to the gas discharge position of the flare tip, It is easy to maintain and repair as well as installation of related equipment.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a block diagram showing a flare ignition system using a laser according to an embodiment of the present invention; FIG.
2 is a flow chart illustrating a flare ignition method using a laser according to another embodiment of the present invention.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In addition, the following examples can be modified in various forms, and the scope of the present invention is not limited to the following examples.

1 is a block diagram showing a flare ignition system using a laser according to an embodiment of the present invention.

1, a flare ignition system 100 using a laser according to an embodiment of the present invention is provided in a flare facility and is a system for igniting a gas. The system includes a flare tip 110 through which gas is discharged, A laser ignitor 120 for irradiating a laser to the flare tip 110 and a laser ignitor controller 130 for controlling the laser generator 120.

The flare tip 110 is installed at the upper end of the flare tower 10 and has a nozzle or an outlet for discharging the gas supplied to the flare tower 10 for burning or various other gas discharging structures.

In addition, the flare tip 110 may be made of a heat-conductive material that is made of a heat-resistant material to withstand the laser heating, but rapidly rises due to the heating of the laser. In addition to the metal or metal alloy, And can be made of various materials satisfying the requirements.

On the other hand, the flare tower 10 may have a height (H) of 50 to 100 m, although it may vary depending on the size of the installed offshore plant.

The laser generator 120 irradiates a laser to the flare tip 110 to ignite the gas by causing the flare tip 110 to reach a temperature higher than the firing point by heating.

The laser generator 120 may include a laser generator for generating a laser beam and a laser focusing unit for focusing the laser beam generated from the laser generator and irradiating the laser beam along a predetermined path.

The laser generator 120 may be installed to irradiate the laser to the flare tip 110 at a remote location in view of the fact that the flare tip 110 is located in a high temperature environment by the flaring of the gas, And is installed on the deck 20 on which the flare tower 10 is installed so as to irradiate the laser upward toward the flare tip 110 positioned at the upper end of the flare tower 10 for convenience of maintenance and repair .

The laser generator 120 can heat a specific region of the portion where the gas is discharged from the flare tip 110 to a laser of an output required for ignition for a predetermined time under the control of the laser ignitor controller 130.

The laser generator controller 130 controls the laser generator 120 to irradiate the laser necessary for ignition of the gas and can control the laser irradiation time of the laser generator 120, have.

In addition, the laser igniter controller 130 can operate in response to signals from the entire system of the offshore plant, and can perform control over the laser igniter 120 so that gas is ignited in a short time, Response to the entire system of the offshore plant.

The laser generator controller 130 and the laser generator 120 may be installed together in the casing 140 to form a single device. At this time, the laser generator (120) may be installed such that the laser irradiation side exposes or protrudes from the casing (140).

2 is a flowchart illustrating a flare ignition method using a laser according to another embodiment of the present invention.

As shown in FIG. 2, the flare ignition method using a laser according to another embodiment of the present invention includes a step S11 of irradiating a laser and a step S12 of causing a gas to be ignited.

According to the step S11 of irradiating the laser, the laser is irradiated to the flare tip 110, which is installed in the flare tower 10 and discharges gas for burning. At this time, by using the laser generator 120, And the laser is irradiated to a specific region included in a portion where the gas is discharged from the flare tip 110 so as to increase the ignition efficiency of the gas.

At this time, the laser generator (120) is controlled to irradiate a laser of an output required for gas ignition for a predetermined time by the laser generator controller (130).

The gas located in the heating portion of the flare tip 110 is heated to a temperature equal to or higher than the firing point by heating the flare tip 110 by the laser irradiated from the laser generator 120. [ To be ignited.

According to the flare ignition system and method using the laser according to the present invention, it is possible to perform direct ignition using a laser at a long distance using a gas ignition point rather than a spark, It is not necessary to install a passage or a mediator separately, and it is easy to maintain and repair as well as installing ignition related equipment.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention. It is.

10: Flair Tower
20: Deck
110: Flare Tip
120: Laser generator
130: laser generator controller

Claims

In a flare ignition system provided in a flare facility,
A flare tip through which a gas for burning is discharged;
A laser generator for applying a laser to the flare tip to ignite the gas by heating the flare tip; And
And a laser generator controller for controlling the laser generator to irradiate a laser necessary for ignition of the gas.

The method according to claim 1,
The laser generator includes:
Wherein the flare tower is installed on a deck on which the flare tower is installed so as to irradiate a laser upward toward the flare tip located at the top of the flare tower.

The method according to claim 1 or 2,
The laser generator includes:
Characterized in that a specific region of the portion where the gas is discharged from the flare tip is heated by a laser having an output required for ignition of gas for a predetermined time under the control of the laser generator controller.

In a flare ignition method of a flare facility,
Irradiating a laser to a flare tip installed in a flare tower and discharging a gas for burning; And
And heating the flare tip by laser irradiation to cause the gas to ignite.

The method of claim 4,
The step of irradiating the laser,
Wherein a laser of an output required for ignition of gas is irradiated to a specific region of a portion where gas is discharged from the flare tip for a predetermined period of time.