KR20170061261A - Wall structure for explosion proof - Google Patents

Wall structure for explosion proof Download PDF

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Publication number
KR20170061261A
KR20170061261A KR1020150166025A KR20150166025A KR20170061261A KR 20170061261 A KR20170061261 A KR 20170061261A KR 1020150166025 A KR1020150166025 A KR 1020150166025A KR 20150166025 A KR20150166025 A KR 20150166025A KR 20170061261 A KR20170061261 A KR 20170061261A
Authority
KR
South Korea
Prior art keywords
explosion
wall
exhaust line
source
combustible gas
Prior art date
Application number
KR1020150166025A
Other languages
Korean (ko)
Inventor
단승규
유종근
이대희
Original Assignee
삼성중공업 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 삼성중공업 주식회사 filed Critical 삼성중공업 주식회사
Priority to KR1020150166025A priority Critical patent/KR20170061261A/en
Publication of KR20170061261A publication Critical patent/KR20170061261A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B17/00—Vessels parts, details, or accessories, not otherwise provided for
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63J—AUXILIARIES ON VESSELS
    • B63J2/00—Arrangements of ventilation, heating, cooling, or air-conditioning
    • B63J2/02—Ventilation; Air-conditioning
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
    • E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
    • E04B1/62—Insulation or other protection; Elements or use of specified material therefor
    • E04B1/92—Protection against other undesired influences or dangers
    • E04B1/98—Protection against other undesired influences or dangers against vibrations or shocks; against mechanical destruction, e.g. by air-raids
    • E—FIXED CONSTRUCTIONS
    • E04—BUILDING
    • E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
    • E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
    • E04H9/04—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against air-raid or other war-like actions
    • F24F11/001—
    • F24F11/02—
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F7/00—Ventilation
    • F24F7/007—Ventilation with forced flow

Abstract

An explosion-proof wall structure is disclosed. According to another aspect of the present invention, there is provided an explosion-proof wall structure comprising: a wall having an explosion-proof structure; And an exhaust device formed inside the wall to guide the movement of the explosion pressure generated in the explosion source.

Description

{Wall structure for explosion proof}

The present invention relates to an explosion-proof wall structure.

Large offshore structures such as floating natural gas (FLNG) and floating production storage offshore (FPSO) produce, store and ship vast quantities of oil and natural gas .

In such an offshore structure, there is a high likelihood of an accident such as an explosion or a fire, and such an accident can affect the entire ocean structure and cause a series of explosions. Explosion-proof walls are installed in marine structures to prevent deformation and collapse of structures caused by such accidents and to prevent explosion or fire from spreading to adjacent parts.

On the other hand, since the offshore structure arranges the equipment in a dense space, there is a high possibility of accidents due to leakage of flammable gas. In addition, the offshore structures are arranged in a complicated structure such as equipment and pipes, and ventilation due to outside air is not easy, so that the possibility of accidents due to combustible gas is further increased.

An embodiment of the present invention is intended to provide an explosion-proof wall structure that prevents explosion or the like from diffusing into adjacent portions and is easy to ventilate.

According to an aspect of the present invention, there is provided a wall having an explosion-proof structure; And an exhaust device formed inside the wall, the exhaust device guiding the movement of the explosion pressure generated in the explosion source.

Wherein the exhaust line includes an exhaust line extending inside the wall, the exhaust line having an inlet through which the explosion pressure flows into one side of the wall facing the explosion source, An outlet through which the explosion pressure is discharged can be formed.

The outlet of the exhaust line may be located on the upper side of the wall.

The exhaust device may further include a fan disposed on the exhaust line.

The exhaust device includes: a sensor unit for sensing a combustible gas leaking from the explosion source; An alarm unit for notifying the leakage of the combustible gas; And a control unit for receiving the leak signal of the combustible gas from the sensor unit and operating the fan and the alarm unit.

The wall includes a pair of facing outer walls; And a core interposed between the outer walls.

According to the embodiment of the present invention, it is possible to easily reduce the risk of explosion due to easy ventilation to the explosion source where the combustible gas leaks, and to continuously damp the explosion pressure when the explosion occurs in the explosion source, Can be prevented.

1 is a view showing a state in which an explosion-proof wall structure according to an embodiment of the present invention is installed on an offshore structure.
2 is a front view of an explosion-proof wall structure according to an embodiment of the present invention.
3 is a sectional view taken along the line AA in Fig.
4 is a sectional view taken along the line BB in Fig.
5 is a view showing a modification of the exhaust line of Fig.
6 is a cross-sectional view of an explosion-proof wall structure according to another embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The present invention is capable of various modifications and various embodiments, and specific embodiments are illustrated in the drawings and described in detail in the detailed description. 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. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. Referring to the accompanying drawings, the same or corresponding components are denoted by the same reference numerals, do.

2 is a front view of an explosion-proof wall structure according to an embodiment of the present invention. FIG. 3 is a cross-sectional view of the explosion-proof wall structure according to an embodiment of the present invention. And FIG. 4 is a cross-sectional view taken along the line BB of FIG. 2, the upper part is the upper part of the explosion-proof wall structure, and the front part is the surface facing the explosion circle (11 in FIG. 1).

Referring to FIGS. 1 to 4, the explosion-proof wall structure 100 according to the present embodiment includes a wall 110 and an exhaust device 120, and attenuates the explosion pressure generated in the explosion source, prevent.

For example, the wall structure 100 according to the present embodiment may be installed in the topside 10 of the offshore structure 1. The offshore structure (1) can be used to transport oil and natural gas, such as floating natural gas (FLNG), floating production storage off-loading (FPSO), or drill ship Production, storage, shipment, and the like.

The top side 10 of the offshore structure 1 may be provided with a module for a working space or a residence for processing petroleum and natural gas. Especially, modules for petroleum or natural gas processing have a high risk of explosion due to accumulation of flammable gas that leaks during the work process.

The wall structure 100 according to the present embodiment is installed to partition a module having a high risk of explosion and another adjacent module as described above so that it is possible to prevent the explosion from diffusing into another adjacent module when the explosion is caused by the combustible gas .

For example, in the present embodiment, the case of being installed in the offshore structure 1 will be described. However, it is needless to say that the wall structure for explosion-proof may be installed in various structures or places where there is a risk of explosion.

According to this embodiment, the wall 110 has an explosion-proof structure. In other words, the wall 110 has a structure in which the explosion pressure generated in the explosion source 11 is collided and attenuated. Here, the explosion source 11 may be, for example, a module of an offshore structure 1 where the combustible gas leaking in the process of processing petroleum or natural gas is highly likely to explode.

The wall 110 may include outer walls 111a and 111b and a core 115.

The outer walls 111a and 111b are formed as a pair and are formed so as to face each other. The outer walls 111a and 111b have rigidity to withstand the collision explosion pressure. For example, the outer walls 111a and 111b may be formed of a metal such as steel or an alloy thereof, but are not limited thereto.

The core member 115 is interposed between the outer walls 111a and 111b. The core member 115 can reduce the explosion pressure that collides with the outer walls 111a and 111b. For example, the core material 115 may be formed of an elastic material such as, but not limited to, polyurethane or rubber.

The wall 110 to which the outer walls 111a and 111b and the core member 115 are coupled may have a hexahedral shape, but is not limited thereto.

For example, the wall 110 may be disposed in a space between the explosion source 11 and another adjacent module 12 as in Fig. The wall 110 may extend perpendicularly to the top side 10 of the offshore structure 1. At this time, the lower portion of the wall body 110 may be fixed to the top side 10 using a fixing member such as welding or bracket.

The wall 110 separates the explosion source 11 and another adjacent module 12, so that the explosion pressure generated in the explosion source 11 is collided and attenuated to prevent the explosion from diffusing.

The wall 110 separates the explosion source 11 and another adjacent module 12 to thereby perform an arming function for preventing the spread of the fire generated in the explosion source 11. In this case, the wall 110 may be subjected to heat insulation or flame-proofing to the outer walls 111a and 111b of the wall 110, or may be provided with a heat insulating or resistive member to the core 115 of the wall 110, .

An exhaust device 120 is formed inside the wall 110. The exhaust device (120) guides the movement of the explosion pressure generated in the explosion source (11).

The exhaust device 120 may include an exhaust line 121 extending within the wall 110.

The inlet 121a of the exhaust line is formed on one side of the wall 110 facing the explosion source 11, and the explosion pressure is introduced. For example, the inlet 121a of the exhaust line may be formed on the outer wall 111a of the pair of outer walls 111a and 111b facing the explosion source 11 as shown in FIGS. The inlet 121a of the exhaust line may be formed as an opening passing through the outer wall 111a toward the explosion source 11.

The exhaust line 121 provides a path through which the explosion pressure introduced into the inlet 121a of the exhaust line moves. For example, the exhaust line 121 may include an inlet section extending to the inner space formed by the pair of outer walls 111a and 111b at the outer wall 111a formed with the opening as shown in FIG. 3, As shown in FIG. In this case, the explosion pressure flowing into the exhaust line 121 moves up and down along the outer walls 111a and 111b.

At this time, the side walls constituting the exhaust line 121 may be formed of a rigid material which can withstand the explosion pressure like the material of the outer walls 111a and 111b.

The outlet 121b of the exhaust line is formed on the other side of the wall 110, and the explosion pressure is discharged.

For example, the outlet 121b of the exhaust line may be formed on the upper surface of the wall 110 facing an area where no other equipment or equipment is installed. In this case, the explosion pressure discharged to the outlet 121b of the exhaust line can be prevented from being discharged to the other module 12 or the operator adjacent to the explosion source 11. [

It is needless to say that the outlet 121b of the exhaust line may be formed at various positions where the explosion pressure can be prevented from being discharged toward the portion adjacent to the explosion source 11 or the worker.

The cross section of the exhaust line 121 may be a rectangular cross section as shown in FIG. 4, but is not limited thereto.

The exhaust line 121 according to the present embodiment as described above can change the moving direction of the explosion pressure to attenuate the explosion pressure to effectively prevent the explosion from spreading. Furthermore, the exhaust line 121 provides a path through which the combustible gas and the outside air move, thereby facilitating ventilation to the explosion source 11, thereby reducing the risk of explosion. In addition, the exhaust line 121 can provide a path for discharging the flame or smoke due to the explosion when the explosion occurs.

The exhaust device 120 may further include a fan 122 disposed on the exhaust line 121. [ The fan 122) can improve the flow in the exhaust line 121. In this case, the combustible gas of the explosion source 11 can effectively flow into the exhaust line 121 and be discharged to the outside air. At this time, the concentration of the combustible gas in the explosion source 11 is reduced, and the risk of explosion of the combustible gas may be reduced.

For example, the fan 122 may be disposed at the inlet side of the exhaust line 121. In this case, the combustible gas of the explosion source 11 can be effectively introduced into the exhaust line 121 by the operation of the fan 122 and can be discharged.

In addition, the fan 122 may be disposed at various positions on the exhaust line 121 so that the flow inside the exhaust line 121 is improved.

The exhaust device 120 may be provided in plural. In this case, the explosion pressure can be effectively discharged through the plurality of exhaust apparatuses 120. At this time, the number of the exhaust devices 120 may be determined in consideration of the size and material of the wall body 110, the range of the explosion source 11, and the like.

When a plurality of exhaust apparatuses 120 are provided, the exhaust line 121 may have various structures inside the wall body 110.

For example, the exhaust line 121 may extend to the inlet 121a of one exhaust line, and the outlet 121b of one exhaust line may correspond to the corresponding structure.

3, the inlet 121a of the exhaust line is formed on the outer wall 111a facing the explosion source 11 in the vertical direction, and the outlet 121b of the exhaust line is connected to the wall 110, And the exhaust line 121 can be extended by connecting the inlet 121a of one exhaust line to the outlet 121b of one exhaust line. The structure of the exhaust line 121 may be three in the lateral direction of the wall 110 as shown in FIG.

In this case, the explosion pressure introduced from the inlet 121a of one exhaust line does not interfere with the explosion pressure introduced from the inlet of the other exhaust line, and the outlet 121b of the exhaust line corresponding to the inlet 121a of the introduced exhaust line, .

As another example, the exhaust line 121 'may extend to a structure in which the inlet 121a' of a plurality of exhaust lines corresponds to the outlet 121b 'of one exhaust line, as shown in FIG. That is, the exhaust line 121 'may extend into a manifold structure. 5 is a view showing a modification of the exhaust line of Fig.

More specifically, as shown in FIG. 5, the inlet 121a 'of the exhaust line is formed in the vertical direction at the outer wall 111a' toward the explosion source (11 in FIG. 1), and the outlet 121b ' Is formed on the upper surface of the wall 110 'and the exhaust line 121' is connected to the outlet 121b 'of one exhaust line and the inlet 121a' of the three exhaust lines are extended .

In this case, the internal space of the wall 110 'in which the exhaust line 121' is formed can be saved. Accordingly, the wall 110 'is reduced in thickness and weight, and can be easily installed.

Hereinafter, the operation of the explosion-proof wall structure 100 according to the present embodiment will be described with reference to Figs. 1 to 4. Fig.

1 to 4, the wall 110 of the explosion-proof wall structure 100 according to the present embodiment is a module having a risk of explosion due to leakage of flammable gas to the topside 10 of the offshore structure 1 11, that is, the explosion source 11.

Some of the combustible gas leaking from the explosion source 11 moves toward the wall 110 and flows along the exhaust line 121 to the explosion source 11 ). ≪ / RTI > At this time, the fan 122 operates, and the effect that the combustible gas is discharged to the outside of the explosion source 11 can be improved.

When an explosion occurs in the explosion source 11, the explosion pressure can move toward the wall 110. [

The explosion pressure can collide with the wall 110 and be attenuated. And some of the explosion pressure may flow into and out of the exhaust line 121 and be attenuated. Therefore, the explosion-proof wall structure 100 according to the present embodiment can continuously reduce the explosion pressure to prevent a large explosion accident.

As described above, the explosion-proof wall structure 100 according to the present embodiment is easy to ventilate to the explosion source 11 in which the combustible gas leaks, thereby reducing the risk of explosion, When an explosion occurs, the explosion pressure is continuously attenuated to prevent the explosion from spreading to the adjacent area.

6 is a cross-sectional view of an explosion-proof wall structure 200 according to another embodiment of the present invention.

6, the wall structure 200 according to the present embodiment includes a wall 110, an exhaust line 221, a fan 222, a sensor unit 225, an alarm unit 226, a control unit 227, . The wall 110, the exhaust line 221 and the fan 222 according to the present embodiment are the same as the wall 110, the exhaust line 121 and the fan 122 of the previous embodiment, and the description thereof will be omitted.

The exhaust system 220 according to the present embodiment differs from the exhaust system 120 of the previous embodiment in that it further includes a sensor unit 225, an alarm unit 226 and a control unit 227.

The sensor unit 225 senses a combustible gas leaking from the explosion source (11 in FIG. 1). For example, the sensor unit 225 may be, but is not limited to, a gas sensor that measures the concentration of the combustible gas.

The sensor unit 225 may be installed below the outer wall 111a of the pair of outer walls 111a and 111b toward the explosion source 11 (see FIG. 1) as shown in FIG. However, this is merely an example, and the sensor unit 225 may be installed at various positions capable of accurately and easily detecting the combustible gas.

The alarm unit 226 notifies the leak of the combustible gas. In other words, the alarm unit 226 warns the operator of the leakage of the combustible gas. For example, the alarm portion 226 may be, but is not limited to, a warning light or an audible warning speaker.

The alarm unit 226 may be installed at an upper portion of the outer wall 111b of the pair of outer walls 111a and 111b not facing the explosion source 11 (see FIG. 1) as shown in FIG. However, this is merely an example, and the alarm unit 226 can be installed at various positions capable of promptly warning the leakage of the combustible gas.

The control unit 227 receives the leak signal of the combustible gas from the sensor unit 225 and operates the fan 222 and the alarm unit 226.

For example, the sensor unit 225 measures the concentration of the combustible gas leaking from the explosion source (11 in FIG. 1) and transmits the measurement value to the control unit 227. The control unit 227 calculates the measurement value of the sensor unit 225 And compares the measured value with the set value. Here, the set value may be a minimum value of the concentration of the combustible gas in which the explosion may occur in the explosion source (11 in FIG. 1), and may be determined depending on the type of the combustible gas, the explosion source range,

When the received measured value is equal to or greater than the set value, the control unit 227 operates the fan 222 to allow the combustible gas to be effectively discharged to the outside air through the exhaust line 221. Then, the control unit 227 operates the alarm unit 226 to stop the operation of the explosion source (11 in Fig. 1) in which the combustible gas leaks, or to allow the worker to evacuate from the explosion source (11 in Fig. 1) .

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, many modifications and changes may be made by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims. It will be understood that various modifications and changes may be made by those skilled in the art within the scope of the present invention.

1: Offshore structures
10: Topside
11: Explosive circle
12: Module
100, 200: Explosion-proof wall structure
110: wall
111a, 111a ', 111b, 111b': outer wall
115: Core
120, 220: Exhaust system
121, 121 ', 221: exhaust line
121a, 121a ': inlet of the exhaust line
121b, 121b ': Exit of the exhaust line
122, 222: Fan
225:
226:
227:

Claims (6)

A wall having an explosion-proof structure; And
And an exhaust device formed inside the wall for guiding movement of the explosion pressure generated in the explosion source. The method according to claim 1,
Wherein the exhaust device includes an exhaust line extending within the wall,
The exhaust line
An inlet through which the explosion pressure flows is formed on one side of the wall facing the explosion source,
And an outlet through which the explosion pressure is discharged is formed on the other side surface of the wall. 3. The method of claim 2,
And the outlet of the exhaust line is located on the upper side of the wall. 3. The method of claim 2,
Wherein the exhaust device further comprises a fan disposed on the exhaust line. 5. The method of claim 4,
In the exhaust device,
A sensor unit for sensing a combustible gas leaking from the explosion source;
An alarm unit for notifying the leakage of the combustible gas; And
Further comprising a control unit for receiving the leak signal of the combustible gas from the sensor unit and operating the fan and the alarm unit. The method according to claim 1,
Wherein the wall comprises:
A pair of facing outer walls; And
And a core member interposed between the outer walls.
KR1020150166025A 2015-11-26 2015-11-26 Wall structure for explosion proof KR20170061261A (en)

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KR1020150166025A KR20170061261A (en) 2015-11-26 2015-11-26 Wall structure for explosion proof

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Application Number Priority Date Filing Date Title
KR1020150166025A KR20170061261A (en) 2015-11-26 2015-11-26 Wall structure for explosion proof

Publications (1)

Publication Number Publication Date
KR20170061261A true KR20170061261A (en) 2017-06-05

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Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112689529A (en) * 2019-02-05 2021-04-20 日挥环球株式会社 Treatment facility

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112689529A (en) * 2019-02-05 2021-04-20 日挥环球株式会社 Treatment facility
KR20210118804A (en) 2019-02-05 2021-10-01 닛키 글로벌 가부시키가이샤 processing plant

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