KR20160115074A - Effective radiation shielding method for offshore burner boom - Google Patents

Abstract

The present invention relates to a method for efficiently shielding radiant heat to a burner boom of an offshore plant and, more specifically, to a method for efficiently shielding radiant heat to a burner boom of an offshore plant, capable of shielding radiant heat, which is a heat source generated when burning a waste gas generated in a case of oil drilling more efficiently. The method for efficiently shielding the radiant heat to the burner boom of the offshore plant, in the method for efficiently shielding the radiant heat generated in a flare system of a floating type crude oil producing and storing facility, includes: (a) a step of installing the burner capable of burning the waste gas; (b) a step of installing and connecting a control device capable of controlling the burner; (c) a step of connecting a nozzle capable of forming a water curtain at a position 1.5 meters away from a rear side of a flame port of the burner and connecting the nozzle with a shielding water line; (d) a step of installing and connecting a heat flux sensor with the control device at a position 1.5-2 meters away from the rear side of the nozzle; (e) a step of connecting the waste gas line to the burner; (f) a step of igniting and operating the burner; (g) a step of forming the water curtain capable of shielding the radiant heat generated by the operated burner by supplying shielding water to the nozzle; (h) a step of receiving a feedback of data through the heat flux sensor; and (i) a step of generating emergency alarming when the feedback data exceeds a preset value.

Description

[0001] The present invention relates to an effective radiation shielding method for an offshore plant burner boom,

The present invention relates to an efficient method of shielding radiant heat from a marine plant burner boom, and more particularly, to a method of shielding a radiant heat from a marine plant burner boom, The present invention relates to an efficient radiant heat shielding method for a plant burner boom.

In general, unlike general ships, offshore plants with fixed, floating, or flexible structures operate from 3 to 30 years after they are installed at the oil or gas extraction point, which makes the design considerations very difficult , Various climatic effects such as wind and waves, and special environmental conditions in the sea, as well as the production of petroleum products, require a variety of difficult and high-tech techniques related to ensuring stability against fire and explosion.

Recently, due to the increase in demand for petroleum resources development in the deep sea area of more than 1,000 meters, various technologies have been secured and developed. In addition, the drilling, production, and storage are performed simultaneously There is a growing interest in the demand and development of multi-purpose offshore plants.

Currently, oceanic plant design technology for oil and gas resources and offshore plant technology for marine space utilization should be secured in the first place in time, which is relatively high in domestic industrial base and technology level. It is expected that the concentration of technology investment and its ripple effect will be high.

Particularly, the offshore plant burner boom water spray nozzle exhaust structure proposed by the present applicant is one of the water fire extinguishing systems of a burner boom for an offshore plant, which occurs when burning offgas generated during submarine crude drilling It is equipment to protect hull, equipment and human life by using high-pressure water (fine droplet, mist) emitted from nozzle with high heat source.

Figs. 1 to 3 show photographs explaining a practical use of a burner boom water spray nozzle arrangement structure which is generally used.

As can be seen from the drawings, the burner boom water spray nozzle arrangement structure is a device for protecting the hull, equipment and human life from the combustion of waste gas during petroleum drilling operations, and includes nozzles for spraying fine water, A water curtain pipe member for forming a predetermined water curtain by using water sprayed through the water curtain pipe, and a pump.

In operation, when the pump is operated, the water supplied through the pipe member is radiated as fine water through the nozzle, and various types of water curtains are formed depending on the shape of the nozzle or the structure of the pipe member in which the nozzle is disposed.

However, in the previously disclosed burner boom water spray nozzle arrangement structure, the shape of the holes formed in the nozzle taps for most of the water curtains against heat shielding is not out of the classical form, and the water curtain disposed for its water curtain A plurality of nozzle tabs have a disadvantage in that they can not perform an efficient water curtain function because they follow the classical form.

Therefore, in order to solve the above problems, the following patent proposal No. 10-1408669 filed by the present applicant has proposed the "off-site plant burner boom heater spray nozzle arrangement structure ".

FIG. 4 is a general conceptual view of a fire test conducted using the structure proposed by the applicant of the present invention. As shown in FIG. 4, the main test equipment for the fire test is a gas burner for flame generation, A radiant heat measuring device for measuring the radiant heat generated by the flame, a pressurized water supply and reception device for supplying water at a predetermined pressure to a nozzle-mounted structure, a thermal imaging camera, and a test control System.

The nozzle arrangement structure used in the conventional invention serves to radiate water supplied through the pressurized water supply and reception apparatus through nozzles provided in the nozzle arrangement structure. In the conventional invention, three structures are manufactured according to the arrangement of the nozzles.

The first structure is a straight structure, in which the three nozzles are arranged on the same horizontal plane (see Fig. 5)

The second structure is a triangular structure, in which the nozzles of the second two are spaced apart from each other by a predetermined distance, and the other one of the nozzles is located at a position higher than the nozzle so as to protrude in a direction perpendicular to the center on the horizontal plane )ego,

The third structure is an inverted triangular structure, which is located at a predetermined distance from two identical horizontal planes, and the other nozzle is located at a position lower than the horizontal plane and further extending in the vertical direction from the center of the horizontal plane 13).

5, 9, and 13, the water (supply water) supplied through the pressurized water supply and reception apparatus flows into the lower end portion of the water supply pipe forming the body portion and is radiated through the three nozzles formed in the upper portion.

An example of a disaster prevention or thermal efficiency test procedure using such a nozzle arrangement structure is as follows.

<Test procedure>

(1) The test is divided into three methods according to the nozzle arrangement.

(2) A gas burner (fire model) is ignited to generate a flame.

(3) Maintain the flame intensity according to test conditions to be stabilized.

(4) Measure the radiant heat and temperature of the flame generated from the gas burner (fire model).

(5) Measure the radiant heat and temperature of the flame generated from the gas burner (fire model) while radiating water at a radiation pressure of 0.5 MPa or 0.6 MPa from the structure.

(6) Record the flame distribution according to the intensity of the flame with an infrared camera.

<Test execution>

The fire test was carried out 36 times according to the test procedure under the following conditions.

(1) Flame intensity: 3 (1.0 MW, 2.0 MW, 3.0 MW)

(2) Distance between structure and radiant heat measuring device: 4 (1.5 m, 2.0 m, 2.5 m, 3.0 m)

(3) Height from the bottom of the radiant heat measuring apparatus: three (0.54 m, 2.00 m, 2.55 m)

(4) Condition of test specimen installation: 3 types (straight, triangle, inverted triangle)

FIGS. 5 to 8 are a perspective view, a side view, a plan view, and a rear view, respectively, of the straight nozzle arrangement structure, FIGS. 9 to 12 are a perspective view, a side view, a plan view, and a rear view, respectively, A side view, a plan view, and a rear view of an inverted triangular nozzle arrangement structure.

In the prior art, a pattern is sprayed to each nozzle through a water supply pipe for supplying a predetermined pressure of water from the lower part to form a body part.

17 to 20 illustrate the radiation pattern of water discharged through the nozzle when the water supply pressure is 5 bar according to a perspective view, a side view, a plan view, and a rear view of the linear nozzle arrangement structure shown in Figs. 5 to 8 ego,

FIGS. 21 to 24 are views showing the radiation pattern of water discharged through the nozzle when the water supply pressure is 6 bar according to a perspective view, a side view, a plan view, and a rear view of the linear nozzle arrangement structure shown in FIGS. 5 to 8 .

25 to 28 illustrate the radiation pattern of water discharged through the nozzle when the water supply pressure is 5 bar according to a perspective view, a side view, a plan view, and a rear view of the triangular nozzle arrangement structure shown in Figs. 9 to 12 29 to 32 show the radiation pattern of water discharged through the nozzle when the water supply pressure is 6 bar according to a perspective view, a side view, a plan view, and a rear view of the triangular nozzle arrangement structure shown in Figs. 9 to 12 FIG.

33 to 36 show the radiation pattern of the water discharged through the nozzle when the water supply pressure is 5 bar according to a perspective view, a side view, a plan view, and a rear view of the inverted triangular nozzle placement structure shown in Figs. 13 to 16 37 to 40 show the radiation pattern of the water discharged through the nozzle when the water supply pressure is 6 bar according to the perspective view, the side view, the plan view, and the rear view of the inverted triangular nozzle arrangement structure shown in Figs. Fig.

As shown in the drawings, in the present invention, the spray pattern and the flow characteristics of water according to the arrangement structure of the nozzles are predicted, and spraying (or also radiation) from the nozzles predicts the highest heat shielding effect of the flame by spraying A flow analysis was performed to select the placement geometry.

In order to compare the heat shielding effect of the flame according to the arrangement shape, the volume of the entire area in which the water particles are distributed is calculated, and the surface area of the spray pattern is expressed by the ISO Surface to obtain the area and compared.

41 is a view showing a radiation pattern of water radiated by using the nozzle proposed in the present invention at a water supply pressure of 5 bar and FIG. Fig. 6 is a view showing a radiation pattern of water to be radiated. Fig.

As can be seen from FIGS. 41 and 42, it can be seen that the range and speed of the radiation pattern becomes wider and faster as the feed water pressure increases.

43 to 46 are explanations of the nozzles used in the structure according to the conventional invention proposed by the present applicant.

Fig. 43 is an external perspective view of a nozzle used in a marine plant burner boom water spray nozzle arrangement structure proposed by the applicant of the present invention, Fig. 44 is a front view of a conventional invention nozzle proposed by the present applicant shown in Fig. 43, 45 is a plan view of the conventional invention nozzle proposed by the present applicant shown in FIG. 43, and FIG. 46 is an external view of a state in which the nozzle tab is removed from the conventional invention nozzle proposed by the present applicant shown in FIG.

43 to 45, the structure of a marine plant burner boom water spray nozzle according to the related art includes a front spray part 200, a first side spray part 300, a second side spray part 400 And a connecting portion 500. [0050]

The front-side spray part 200 in the shape of a circular plate is located at the uppermost end of the nozzle, and a nozzle tab 201 for spraying a fluid (e.g., water) is mounted at the center thereof.

The first side spray part 300 is formed on the lower side of the front spray part 200 and a plurality of nozzle taps 301, 302, ... are laterally arranged at regular intervals.

As shown in FIG. 46, the plurality of nozzle tabs 301, 302,... Are coupled with the tab holes 31, 32, .. formed in the first side spray portion 300. The coupling method is preferably a screw coupling method, and a nut or the like may be used incidentally. It is also possible to use a sealing resin or the like in order to fill a gap or the like at the time of bonding.

Next, the second side spray portion 400 is formed on the lower side of the first side spray portion 300, and a plurality of nozzle tabs 401, 402,...

As shown in FIG. 46, the plurality of nozzle tabs 401, 402,... Are coupled with the tab holes 41, 42, ... formed in the second side spray portion 400.

The coupling method is preferably a screw coupling method, and a nut or the like may be used incidentally, and it is also possible to use a sealing resin or the like in order to fill a gap or the like at the time of coupling.

Each of the side surfaces of the first side spray portion 300 and the second side spray portion 400 is inclined at a predetermined angle from the upper end to the lower end of the first side spray portion 300. The horizontal end surface has an annular shape and the same size, Or the size may be varied as needed.

The side inclination angles of the first and second side spray portions 300 and 400 are used to form an efficient water curtain pattern. The side inclination angles can be designed in various ways according to the inclination of the protrusions 31, 32,..., 41, 42,.

As can be seen from the drawing, corresponding tap holes (31, 32, ..., 41, ...) are formed in the front central portion of each of the plurality of nozzle taps (301, 302, 41, 42, ..., and a pupil-shaped groove surrounding the hole.

The pupil-shaped groove is sloped about the hole. More specifically, it is sloped from the outer rim of the pupil-like shape toward the center line with respect to the center line crossing the hole.

The reason for forming the pupil-shaped grooves in this manner is that it is possible to form a water curtain pattern more efficiently than in the case where the grooves are not formed. As a result of several experiments, the pupil- It is preferable to arrange it so as to be inclined within the range.

Meanwhile, there has been a need to further develop the above-mentioned conventional invention proposed by the present applicant (Patent Registration No. 10-1408669), and to develop an optimum method for effectively shielding the radiant heat from a marine plant burner boom through actual tests.

Korean Patent Application No. 10-2009-0000991 Korean Utility Model Application No. 20-2001-0032477 Korean Patent Registration No. 10-1408669

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned needs, and it is an object of the present invention to provide an apparatus and a method for controlling the shape and arrangement of nozzles based on the result of a reliable test so as to more efficiently shield radiant heat, which is a high heat source generated when burning offgas generated during crude oil drilling, And to provide an efficient method of shielding radiant heat for an optimal off-shore plant burner boom.

In order to achieve the above-mentioned object, an efficient radiation heat shielding method for a marine plant burner boom is an efficient radiation heat shielding method for a marine plant burner boom that shields radiant heat generated in a flare system of a floating crude oil production storage facility,

(a) installing a burner capable of incineration of waste gas;

(b) installing and connecting a control device capable of controlling the burner;

(c) installing a nozzle capable of forming a water curtain at a distance of 1.5 m behind the flame of the burner, and connecting the nozzle with a shield water line;

(d) installing a heat flux sensor at a position 1.5 to 2 m behind the nozzle and connecting the sensor to the control device;

(e) connecting the burner with a gas line;

(f) igniting the burner;

(g) forming a water curtain for shielding radiant heat generated in the burner by supplying shield water to the nozzle;

(h) receiving data (Data Back) through the heat flow sensor;

(i) generating an emergency alarm when the feedback data (Data) exceeds a set value.

The use of the efficient radiant heat shielding method for the offshore plant burner boom proposed in the present invention can advantageously shield the radiant heat from the flue gas rising from the seabed.

Particularly, the nozzle used in the present invention can realize an efficient water curtain pattern by providing the front jet portion, and by forming the grooves cut in the pupil shape in the nozzle tab, the scattering range of the fluid sprayed through the nozzle tab can be widened, There is an advantage that the radiant heat of high heat radiated from the waste gas generated during the operation can be effectively blocked.

Figs. 1 to 3 are photographs for explaining an example of a practical use state and a basic operation of a burner boom water spray system which is generally used. Fig.
FIG. 4 is an overall conceptual view of a fire test conducted using the structure proposed in the prior art.
5 to 8 are a perspective view, a side view, a plan view, and a rear view of the straight nozzle arrangement structure.
9 to 12 are a perspective view, a side view, a plan view and a rear view of the triangular nozzle arrangement structure.
13 to 16 are a perspective view, a side view, a plan view, and a rear view of an inverted triangular nozzle arrangement structure.
FIGS. 17 to 20 are views showing a radiation pattern of water discharged through a nozzle when the water supply pressure is 5 bar, according to a perspective view, a side view, a plan view, and a rear view of the linear nozzle arrangement structure shown in FIGS.
FIGS. 21 to 24 are views showing the radiation pattern of water discharged through the nozzle when the water supply pressure is 6 bar according to a perspective view, a side view, a plan view, and a rear view of the linear nozzle arrangement structure shown in FIGS. 5 to 8 .
FIGS. 25 to 28 are views showing the radiation pattern of water discharged through a nozzle when the water supply pressure is 5 bar according to a perspective view, a side view, a plan view, and a rear view of the triangular nozzle arrangement structure shown in FIGS.
FIGS. 29 to 32 are views showing the radiation pattern of water discharged through the nozzle when the water supply pressure is 6 bar according to a perspective view, a side view, a plan view, and a rear view of the triangular nozzle arrangement structure shown in FIGS. 9 to 12 .
FIGS. 33 to 36 show the radiation pattern of water discharged through the nozzle when the water supply pressure is 5 bar according to a perspective view, a side view, a plan view, and a rear view of the inverted triangular nozzle arrangement structure shown in FIGS. 13 to 16 , FIGS. 37 to 40 show the radiation pattern of the water discharged through the nozzle when the water supply pressure is 6 bar according to the perspective view, the side view, the plan view, and the rear view of the inverted triangular nozzle arrangement structure shown in FIGS. FIG.
43 to 46 show an embodiment of a marine plant burner boom water spray nozzle proposed in the prior art.
FIG. 47 is an equipment layout diagram according to an experiment for an efficient radiant heat shielding method for a marine plant burner boom proposed in the present invention.
48 and 49 are schematic views showing positions of the sensing sensors according to the water curtain type.
50 and 50A are views showing nozzles proposed in the present invention.
FIG. 50B is a diagram showing the range of injection of the nozzles proposed in the present invention. FIG.
Figs. 51 to 54 are arrangement views of the nozzle jig and the case. Fig.
55 is a diagram showing a layout of nozzles for a flare burner.
56 to 58 are radiation heat test data for each case.
FIG. 59 shows data representing nozzle pressures of respective cases.
FIG. 60 shows data representing the flow rate of each case (case1, case2, case3).
Figs. 61 to 65 are photographs of the specifications and actual photographs of the burner.
66 is a block diagram illustrating an efficient method for shielding radiant heat for a marine plant burner boom according to an embodiment of the present invention.
67 is a photograph showing a sensor for sensing a heat flux (heat flux).
68 is a performance report of a heat flux sensor.

Hereinafter, a specific technical idea of an efficient radiant heat shielding method for a marine plant burner boom proposed by the present invention will be described with reference to the drawings.

Before proceeding with the description, it is to be understood that the present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail.

It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention. Like reference numerals are used for like elements in describing each drawing.

On the other hand, terms such as first, second, A, B, a, b, and the like can be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

The terminology used in this application is used only to describe a specific embodiment and is not intended to limit the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In the present application, the terms "comprises" or "having" and the like are used to specify that there is a feature, a number, a step, an operation, an element, a component or a combination thereof described in the specification, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

Unless defined otherwise, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. Terms such as those defined in commonly used dictionaries are to be interpreted as having a meaning consistent with the contextual meaning of the related art and are to be interpreted as either ideal or overly formal in the sense of the present application Should not.

An efficient method of measuring radiant heat shielding for a marine plant burner boom according to an embodiment of the present invention was created by the following test results.

1. Introduction

1.1. The experiment of the present invention is to measure the performance of the water curtain for the reduction of radiant heat by an experiment to develop a drill ship flare system.

1.2. The experiment of the present invention is to measure the radiant heat generated from a 10 MW burner after passing through a water curtain shielding film.

1.3. Water curtains are different from each other in their ability to transmit radiant heat. Therefore, we analyze the correlation between patterns of radiation reduction and patterns, and verify the performance and reliability of water curtains.

1.4. The experiment of the present invention performs experiments on three types of water curtain patterns.

2. Definitions, Abbreviations and References of the Invention [

2.1. Burner Boom: A kind of flamethrower that emits 10MW of flame by injecting light oil.

2.2. Radiant heat: Heat is directly transmitted without the phenomenon of convection or conduction.

2.3. Water curtain: It is a device to form water film by spraying water, and it plays a role of blocking radiant heat.

2.4. Radiant (Heat) Radiation Sensor: A sensor for measuring the density of heat flow coming through radiation, often used for measuring large heat flux density, and often has water cooling or other cooling means. The unit is expressed in kW / m ² .

2.5. Temperature sensor: A device used to detect the temperature of a fluid or a wall, such as air or water, to record or control the temperature. The units are expressed in degrees Celsius (° C), Fahrenheit (F), and absolute (K).

2.6. Hydraulic pump: It is used in hydraulic flame test system. It is operated by continuous rotation motion by hydraulic energy.

2.7. Induction motor: An alternating-current motor in which an alternating voltage is applied to a stator to induce an electric current to flow through the rotor by electromagnetic induction.

3. Preparation of Test (Test Prepared)

3.1. Test equipment

- Oil burner (capacity 10MW): 1 set

- Measurement system package: 1 set

- Multi nozzle and Jig: 1 set

- Heat flux sensor and Jig: 1 set

- Oil tank: 1 set

- Control rack: 1 set

3.2. Preparation and Precautions

- Be careful not to apply impact or impact when installing equipment for each part.

- Install each equipment in its place and check its appearance.

- Connect the control unit and the equipment and check the operation.

- Check the power supply and voltage specifications before performing the test.

- Check air blower test and direction.

- Multi Check position of nozzle and position of sensor, check gap between two devices.

- Check the overall appearance of the test facility.

- Check the appearance of the sensor and remove foreign matter.

- Check for flammable, combustible material around the flare burner and remove the material if found.

- Verify that there is enough diesel in the oil tank.

- Check that all the valves attached to the oil piping are open.

- Remove air (air) from the oil line.

- Ensure that the oil piping line and flexible hose are tightened and that there is no air mixing or oil leakage.

- Check the position of the sensor and remove the foreign substance every time the test is performed.

3.3. Placement of test equipment

As shown in FIG. 47, a flare burner is disposed at one side edge in a space of 19.5 m × 13.1 m in length, and the other test equipment is arranged in the direction of the center of the emission direction of the flare burner.

4. Test condition

4.1. Water Curtain shape and case selection

As shown in FIGS. 48 and 49, three positions according to a water curtain shape, that is, a straight line, a triangle, and an inverted triangle are applied to show sensor positions for each case.

4.2. Nozzle information and placement

The nozzle 10 according to an embodiment of the present invention includes a front spray portion 100, a side spray portion 200, and a connection portion 300, as shown in FIGS. 50 and 50A.

The front-side spraying part 100 in the shape of a circular plate is located at the uppermost end of the nozzle, and a nozzle tap 101 for spraying a fluid (for example, water) is mounted at the center thereof.

The side spray portion 200 is formed on the lower side of the front spray portion 100 and a plurality of nozzle tabs 201, 202, 203, ... are laterally disposed at regular intervals.

The plurality of nozzle tabs 201, 202, 203, ... are coupled to the tab holes 201h, 202h, 203h, ... formed in the side spray portion 200. [ The coupling method is preferably a screw coupling method, and a nut or the like may be used additionally to improve the coupling force. It is also possible to use a sealing resin, a packing member, or the like in order to fill a gap or the like at the time of bonding.

The side surface of the side spray part 200 is inclined at a predetermined angle from its upper end to its lower end and its horizontal cross section has an annular shape and the same size, but the inclination angle or size may be modified as needed.

The lateral inclination angle of the side spray part 200 is for forming an efficient water curtain pattern, and the inclination angle of each of the nozzle holes 201h, 202h, 203h,. The side inclination angle can be designed in various ways.

In addition, a plurality of nozzle tabs 101, 201, 202, 203, ... proposed in an embodiment of the present invention are respectively connected to corresponding central tabs through corresponding tab holes 101h, 201h, 202h, 203h, A hole through which the introduced fluid is injected and a pupil-shaped groove surrounding the hole are formed.

The pupil-shaped groove is sloped about the hole. More specifically, it is sloped from the outer rim of the pupil-like shape toward the center line with respect to the center line crossing the hole.

The reason why the pupil-shaped groove is formed is because it is possible to form a water curtain pattern more efficiently than in the case where the water curtain pattern is not formed. As a result of several experiments, the pupil- Deg.] In a range of about 20 [deg.] To about 30 [deg.].

And a connection portion 300 for guiding the flow of the fluid (e.g., water) is formed on the lower side of the side spray portion 200 in combination with a member for supplying the fluid for introducing the nozzle.

A plurality of tab holes 201h, 202h, 203h, ... are formed on a side surface of the side spray portion 200. The tabs 101h,

The tap holes 101h, 201h, 202h, ... are through holes connected to the inside of the nozzle, and the fluid introduced through the openings formed on the bottom surface of the connection portion 300 is discharged through the tap holes 101h, 201h, 202h, .... And is injected through the corresponding nozzle tabs 101, 201, 202, ....

50B shows a range of the fluid ejected from the nozzle 10, and the range of 145 DEG to 150 DEG may be suitable.

As described above, the nozzle 10 of the method for efficiently shielding the radiant heat of the ocean plant burner boom according to the above-described embodiment of the present invention provides the side spray part 200 in addition to the front spray part 100, Pattern can be realized and the grooves cut in the eye shape are formed on the nozzle tab, it is possible to widen the scattering range of the fluid sprayed through the nozzle tab, thereby effectively preventing the high heat radiated from the waste gas generated during the drilling operation There is an advantage.

As described above, an efficient radiant heat shielding method for an optimal off-shore plant burner boom is proposed by using the nozzle proposed in the embodiment of the present invention, and through experiments, it can be seen that efficient radiation heat shielding Method.

In addition, the present invention has carried out in-depth research on various layout structures and continues to develop excellent technologies that can compete with foreign advanced companies in exporting offshore plants.

As a result of various experiments as in the present invention, it has been found that an effective radiant heat shielding apparatus for a marine plant burner boom according to an embodiment of the present invention, The effective radiant heat shielding method is more efficient for flame shielding.

The arrangement of the nozzles according to an embodiment of the present invention is applied to cases of case 1, triangle 2, and case 3 as shown in FIGS. 51 to 54.

The nozzle arrangement method used in the present invention radiates water supplied through the pressurized water supply and reception apparatus through nozzles installed according to the nozzle arrangement method. In the present invention, three kinds of cases are applied according to the arrangement of the nozzles Respectively.

As shown in Fig. 51, the test jig structure for installing the nozzle is shown.

In the straight case (case 1), as shown in FIG. 52, the nozzle is installed in the test jig of FIG. 51 such that three nozzles are arranged on the same horizontal line with a straight arrangement.

In the case of the triangle case (case 2), as shown in FIG. 53, the nozzles of the two nozzles spaced apart from each other by a predetermined distance are located on the same horizontal plane, and the other nozzle is arranged in a direction perpendicular to the center on the horizontal plane 51 so as to be positioned so as to protrude and extend from the test jig shown in Fig.

As shown in FIG. 54, the inverted triangle case (case 3) is an inverted triangular structure and is spaced a predetermined distance from two identical horizontal planes, and the other nozzle is located at a position lower than the horizontal plane from the center of the horizontal plane And is installed in the test jig of Fig. 51 so as to be further extended in the vertical direction.

55 is a diagram showing a layout of nozzles for a flare burner.

51 to 55, the water (supply water) supplied through the pressurized water supply and reception apparatus flows into the lower end portion of the water supply pipe forming the body portion and is radiated through the three nozzles formed in the upper portion.

4.3. Estimate the number of tests and time

a) Apply the average value measured 3 times for each case

b) Burner burning time: 3 ~ 5 minutes (changeable according to environmental conditions)

c) Number of tests: 3 (case) × 3 (number of times) = 9

An example of the disaster prevention or radiant heat shielding efficiency test procedure using such a nozzle arrangement structure is as follows.

5. Test procedure

5.1. Test Methods

- Equipment installation (see layout in Figure 47)

a) Install the burner diagonally inside the test specimen.

b) Connect the burner to the control unit.

c) Install the control device outside the test room.

d) Connect the oil tank to the outside of the test and to the burner.

e) Install Multi nozzle & Jig at 1.5m back of burner flame hole and connect water line.

f) Connect the Heat Flux & Jig to the installation and control unit at 1.5 ~ 2.0m behind the Multi nozzle.

- Test Procedure

a) Measure the pilot burner ignition (gas) and data.

b) Ignite the diesel burner.

c) Operate the diesel burner 100%.

d) Spray the water curtain after the diesel burner is operated at 100%.

e) Run water curtain jetting 100% for about 1-2 minutes.

f) Terminate burner shutdown and data measurement.

g) After ventilation for 10 to 15 minutes, perform test run (time can be changed according to environmental conditions).

h) After ventilation is completed, proceed with each case.

5.2. Test Data Measurement

a) Radiant heat is recorded by the measuring equipment in real time every second.

b) The sensor consists of three sensors, and each sensor records data every second.

c) Radiant heat test data are averaged for 30 seconds ~ 60 seconds and 60 ~ 90 seconds after 100% burner burner operation, and 2 values are recorded for each sensor.

d) To increase the accuracy of the test, a total of three tests are conducted for each case.

e) The average value of the data obtained three times is determined as the final value.

6. Test results

6.1. Radiant heat test result

The radiant heat test data are averages of 30 seconds to 60 seconds and 60 seconds to 90 seconds after the operation of the light oil burner 100%, respectively, and the contents are shown in FIG. 56 to FIG.

As shown in FIGS. 56 to 58, according to the results of the radiant heat test data, Case 1 (arrangement of nozzle nozzles) shows higher radiation heat shielding ability than that of Case 2 (arrangement of nozzles triangles) and Case 3 (arrangement of nozzles of inverted triangles).

6.2. Shielding membrane test pump pressure

FIG. 59 is a chart recording the pressure for 30 seconds after the burner 100% operation and recording the average value for 60 seconds. As shown in FIG. 59, case 1, case 2 and case 3 each show a constant nozzle pressure.

6.3. Shielding membrane test oil flow meter

Figure 60 shows the flow rate of the diesel flowmeter after burner 100% operation and is recorded from 0 to 90 seconds. As shown in FIG. 60, each case (case 1, case 2, case 3) shows a constant flow rate.

Figs. 61 to 65 show standards and actual photographs of the burner.

Accordingly, as shown in FIG. 66, an efficient method for shielding radiant heat from a marine plant burner boom according to an embodiment of the present invention has the following steps.

An efficient method for shielding radiant heat from a marine plant burner boom according to an embodiment of the present invention is an efficient radiant heat shielding method for a marine plant burner boom that shields radiant heat generated in a flare system of a floating crude oil production storage facility, a step S100 of installing a burner capable of burning gas; Installing and connecting a control device capable of controlling the burner (S200); The first and second water channels are installed side by side and right and left in a water line which provides a predetermined water pressure capable of forming a water curtain at a distance of 1.5 m behind the flame of the burner, Connecting the third nozzle to the installation and shielding water line (S300); Installing a heat flow sensor at a position 1.5 to 2 m behind the nozzle and connecting the heat flow sensor to the control device (S400); Connecting a gas line to the burner (S500); Operating the burner (S600); (S700) forming a water curtain that shields the radiant heat generated in the burner by supplying shield water to the first, second, and third nozzles; A step (S800) of feeding back Data (Data) through the heat flow sensor; Generating an emergency alarm when the feedback data (Data) exceeds a set value (S900); And taking a safety measure in accordance with the emergency alert (S1000).

Each of the first to third nozzles includes a front spray portion 100 having a first nozzle tab 101 formed at the center thereof and a plurality of second nozzle tabs 201, And a connecting portion 300 formed below the side injecting portion and coupled to a member for supplying the fluid for introducing the nozzle, wherein the side surface injecting portion 200 is disposed at a predetermined distance from the side injecting portion 200, Each side surface of the jetting portion can be formed to be inclined at an angle from the upper end to the lower end.

In addition, each of the first to third nozzles may be formed with shielding water sprayed forward in a range of 145 ° to 150 °.

S100  : burner( Burner );

As shown in FIGS. 61 to 65, the burner is a device for incineration of waste gas. The burner has a cylindrical shape of? 572 占 7600 mm and is installed at a height of 1500 mm from the bottom surface, do.

S200  : Install the control unit in a safe position and burner ( Burner );

A control device for igniting and controlling the burner is installed at a safe position and the control device is connected to a burner.

S300  : The nozzle 10 proposed in the present invention is installed and Shield water line and  Connecting;

The nozzle 10 is installed at a position 1.5 m behind the flame of the burner so as to form a water curtain for the heat source to be emitted from the burner.

50, the nozzle 10 proposed in the present invention is composed of a front jetting section 100, a side jetting section 200 and a connecting section 300, And 12 nozzle tabs 201 are disposed in the side spray portion 200 and directed in a direction to be discharged from the flame of the burner.

The nozzle tabs 101, 201, 202, 203, ... are formed with pupil-shaped grooves and the grooves are formed to be inclined within a range of 5 to 20 degrees from the horizontal plane of the nozzle.

Also, the nozzles 10 have a case 1 configuration arranged side by side at a distance of 750 mm from the height of 2800 mm at a point 1.5 m behind the flame of the burner.

S400  : Temperature and Heat flux (Heat flux)  Installing the sensing sensor to detect and connecting to the control device (see Fig. 67)

The heat flux is installed at a height of 2000 mm from the bottom surface, 1.5 to 2.0 m behind the nozzle 10, that is, 3 to 3.5 m behind the burner flame sphere.

S500  : burner( Burner )on With the gas line  Steps to connect

Connect the gas line from the oil drilling to the burner.

S600  : burner( Burner ) And igniting

The waste gas supplied to the burner through the control device is ignited to be incinerated and operated.

S700  : In the nozzle 10 Shield water  The supplied burner ( Burner Shielding &lt; / RTI &gt; Water curtains  Forming step

Water is supplied to the nozzle 10 proposed by the present invention so as to form a water curtain in a high heat source generated in the burner operated so that shielding water is sprayed to shield the radiation heat safely.

S800  : Feedback through the sensor ( Feed back ) Receiving step

(Data) is fed back through a sensor that detects heat flux (heat flux) and temperature. The performance of the heat flux sensor can be verified with reference to the test report of FIG.

S900  : Received feedback from sensor The data Set value  Step to generate emergency alarm if exceeded

Emergency alarm is generated for abnormal signals exceeding the set value of the data fed back from the sensor.

S1000  : Steps to Take Safeguards in Accordance with Emergency Alerts

In order to alleviate the hazard according to the emergency alarm situation, the gas line is changed to another line to block the incineration materials in the burner and shut down the equipment safely and sequentially.

10: Nozzle proposed in the present invention 100:
200: side jetting part 300: connection part

Claims (3)

An efficient radiant heat shielding method for an offshore plant burner boom that shields radiation heat generated in a flare system of a floating crude oil production storage facility,
(a) installing a burner capable of incineration of waste gas;
(b) installing and connecting a control device capable of controlling the burner;
(c) a water line provided at a distance of 1.5 m behind the flame of the burner to provide a predetermined water pressure capable of forming a water curtain; Connecting the first to third nozzles with the installation and shielding water lines;
(d) installing a heat flux sensor at a position 1.5 to 2 m behind the first to third nozzles and connecting the heat flux sensor to the control device;
(e) connecting the burner with a gas line;
(f) igniting the burner;
(g) supplying a shielding water to the first to third nozzles to form a water curtain for shielding radiant heat generated in the burner;
(h) feeding back data (Data) to the control device through the heat flow sensor;
(i) generating an emergency alarm through the control device when the feedback data (Data) exceeds a preset value. The method according to claim 1,
Each of the first to third nozzles
A side spray portion formed on a lower side of the front spray portion and having a plurality of second nozzle tabs arranged laterally at a predetermined interval; And a connecting portion that is coupled to a member for supplying a fluid for introducing a nozzle, wherein a side surface of the side injection portion is inclined at a predetermined angle from an upper end to a lower end of the side injection portion. The method according to claim 1,
Each of the first to third nozzles
Characterized in that said shielding water injected forwardly is formed within a range of 145 ° to 150 °.

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