KR101476836B1 - Fire and blast wall system and operating method thereof - Google Patents

Abstract

A fire and blast wall system and an operation method thereof are disclosed. The fire and blast wall system includes a fire and blast wall segmented into a plurality of areas and accommodating fluid in the inner space thereof; a flow management unit which manages the fluid flow in the inner space of the fire and blast wall; and a control unit which controls the flow management unit to individually control the fluid flow by distinguishing the fluid flow into close loop and open loop based on the temperature of the fluid accommodated in the inner space of the fire and blast wall.

Description

FIRE AND BLAST WALL SYSTEM AND OPERATING METHOD THEREFOR

The present invention relates to a disaster prevention wall system and a method of operating the same.

Offshore plant facilities can be classified as fixed structures, gravity structures, floating structures in semi-submerged structures depending on various depths and shapes. In particular, floating structures including FPSO are mainly used for the production, separation, storage, loading and unloading of crude oil for the purpose of design, and most of the various operations involved in the operations are performed in the topside. Therefore, it is necessary to design and operate it.

Since the overhead structures of offshore plants are always exposed to gas diffusion, fire and explosion accidents, it is necessary to maintain the mutual safety between the Production Area and the Utility Area and to prevent explosion and / To prevent the propagation of the wall is installed.

These walls must meet disaster prevention classes such as Fire Class and Blast Class.

For example, in order to satisfy the fire rating, it is necessary to fill up the insulation or coat special paints for fire protection. In this connection, Korean Patent Laid-Open Publication No. 2005-0079438 discloses a non-combustible composition for a fire door (wall), a non-combustible fire door (wall) using the same, and a method for manufacturing the same.

However, such a wall system can only be used once when exposed to fire, and the cost of the coating material and / or the insulating material required for the wall is very high. In addition, continuous maintenance is required to preserve the performance of the material.

Korean Patent Publication No. 2005-0079438

The present invention is to provide a disaster prevention wall system and a method of operating the disaster prevention system for maintaining the integrity of fire and explosion in different areas installed in an upper structure of a marine platform.

The present invention is to provide a disaster prevention wall system and a method for operating the disaster prevention wall system in which a water-cooling system is applied to a wall to prevent a wall from rising above a specific temperature and protect an adjacent area from an explosion.

The present invention relates to a disaster prevention wall system capable of suppressing a temperature rise inside a wall by the heat content of water contained in a wall even when water circulation does not occur and being able to withstand continuous fire by a water circulation system according to fire detection, .

The present invention provides a disaster prevention system capable of reusing and adjusting the fire rating according to a connected water supply system and a method of operating the same.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, there is provided an air conditioner comprising: a disaster prevention wall for partitioning a plurality of zones and containing fluid in an inner space; A flow management unit for managing the flow of the fluid in the interior space of the disaster prevention wall; And a control unit for controlling the flow management unit to divide and manage the fluid flow into a closed loop flow control and an open loop flow control according to a temperature of the fluid accommodated in the inner space of the disaster prevention wall A wall system is provided.

The disaster prevention wall includes an inlet provided at a lower end thereof; An outlet provided at the upper end; And a temperature sensor installed in the inner space.

The flow control unit may include: a pump for supplying the fluid through the inlet; A first valve installed on a first flow path connecting the outlet and the pump; A second valve installed on a second flow path connecting the pump and the buffer tank; And a third valve installed on the branch flow path branching outward from a point between the discharge port and the first valve.

The control unit may be connected to a fire detection system to operate the pump when the fire detection signal is received from the fire detection system and open the first valve and close the second valve and the third valve .

The controller may close the first valve and open the second valve and the third valve when the temperature sensed by the temperature sensor is equal to or greater than a first threshold value.

Wherein the control unit opens the first valve and closes the second valve and the third valve when the temperature sensed by the temperature sensor is lower than a second threshold value and the second threshold value is higher than the first threshold value have.

The front surface of the disaster prevention wall may have a corrugated wall shape.

According to another aspect of the present invention, there is provided a method of operating a disaster prevention wall system in a control unit of a disaster prevention system in which a fluid accommodated in an inner space of a disaster prevention wall circulates along a first flow path or flows along a second flow path and a branch flow path, (a) receiving a fire detection signal from a fire detection system; (b) a closed loop flow control for circulating the flow of the fluid along the first flow path in accordance with the temperature of the fluid accommodated in the inner space, and an open loop loop) flow control; And (c) upon completion of the fire situation, terminating the flow management of the fluid.

Wherein step (b) comprises: (b1) performing closed-loop flow control until the temperature is above a first threshold; (b2) performing the open loop flow control when the temperature is equal to or greater than a first threshold value; (b3) returning to the step (b1) when the temperature is lower than the second threshold value, wherein the second threshold value may be higher than the first threshold value.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, there is an effect of being installed in an upper structure of a marine platform to maintain the integrity of fire and explosion in different areas.

In addition, a water-cooling system can be applied to the wall to prevent the wall from rising above a certain temperature and to protect the adjacent area from the explosion.

In addition, even when the water circulation does not occur, the temperature rise inside the wall is suppressed by the heat content of the water contained in the wall, and the water circulation system according to the fire detection can withstand the continuous fire.

Also, it is possible to reuse, and it is possible to adjust the fire rating according to the connected water supply system.

1 is a block diagram of a disaster prevention system according to an embodiment of the present invention;
2 is a longitudinal sectional view of the disaster prevention wall,
3 is a cross-sectional view and front view of the disaster prevention wall,
4 is a flowchart showing an operation method of a disaster prevention wall system according to an embodiment of the present invention.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be 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.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may 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.

Also, the term "part" or the like, as described in the specification, means a unit for processing at least one function or operation, and may be implemented by hardware, software, or a combination of hardware and software.

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Fig. 1 is a block diagram of a disaster prevention wall system according to an embodiment of the present invention. Fig. 2 is a longitudinal sectional view of the disaster prevention wall, and Fig. 3 is a cross sectional view and a front view of the disaster prevention wall.

The disaster prevention wall system according to an embodiment of the present invention primarily suppresses the temperature rise due to the fire using the heat content of the fluid received inside the disaster prevention wall, and the dual fluid flow path is applied, And the temperature rise can be secondarily suppressed through the water supply.

1 to 3, a disaster prevention wall system 1, disaster prevention walls 100a, 100b and 100c (hereinafter collectively referred to as '100'), a flow management unit 110, a control unit 120, a buffer tank 130, The water supply system 10, the fire detection system 20, the pump 112, the valves V1, V2 and V3, the temperature sensors 103a, 103b and 103c (Collectively referred to as "102"), a first flow path L1, a second flow path L2 and a branch flow path L3 Respectively.

The disaster prevention wall system 1 according to an embodiment of the present invention includes a disaster prevention wall 100 capable of accommodating a predetermined amount of fluid in an inner space thereof and a flow management unit 100 for managing the flow of the fluid received in the disaster prevention wall 100 110, and a control unit 120 for controlling the operation of the flow management unit 110.

For convenience of understanding and explanation of the present invention, it is assumed herein that the fluid received in the disaster prevention wall 100 is water. However, this is merely an example, and various fluids may be used Of course.

The disaster wall 100 may be made of a steel structure that is resistant to blast pressure due to explosion in an area.

2 and 3, such a disaster prevention wall 100 is installed at a boundary of a zone, and can be installed, for example, between the A zone, which is a safe zone, and the B zone, which is a danger zone. One or more disaster prevention walls 100 may be continuously connected to distinguish adjacent areas from each other. In the figure, three disaster prevention walls 100 are successively connected.

The view from the view 1 direction of FIG. 2 is shown in FIG. 3 (a), and the view from the view 2 direction of FIG. 2 is shown in FIG. 3 (b).

The front surface of the disaster prevention wall 100 is in the form of a corrugated wall, and the thickness and the waveform of the corrugated plate may vary depending on the explosion pressure. Further, longitudinal and / or transverse stiffeners may be further provided depending on the size.

Referring again to FIG. 1, the inside of the disaster prevention wall 100 may be filled with a fluid such as water, and the buffer tank 130 may be configured separately according to the wall size.

The disaster prevention wall 100 has an internal space in which the fluid supplied by the pump 112 is received. An inlet 101 is formed at the lower end of the disaster prevention wall 100 and an outlet 102 is formed at an upper end of the disaster prevention wall 100 so that the fluid pumped by the pump 112 flows into the interior space through the inlet 101 And the fluid contained in the inner space can be discharged to the outside of the disaster prevention wall 100 through the discharge port 102. [

In this case, the inlet port 101 is formed at the lower end and the outlet port 102 is formed at the upper end, so that the fluid in the internal space heated by the fire can be easily circulated by the convection phenomenon.

A temperature sensor 103 is installed in the inner space of the disaster prevention wall 100 to measure the temperature of the fluid stored in the inner space and transmit the measured temperature information to the controller 120 to be described later.

The flow control unit 110 supplies the fluid to the disaster prevention wall 100 so that the fluid is received in the inner space of the disaster prevention wall 100. The operation of the pump 112 and the valves V1 to V3 is controlled to circulate the fluid in the interior space of the disaster prevention wall 100 in a close loop or in an open loop, Thereby suppressing the temperature rise of the fluid.

The flow control unit 110 includes a first flow path L1 for connecting the discharge port 102 of the disaster prevention wall 100 and the pump 112 and a second flow path L1 for connecting the buffer tank 130 and the pump 112, L2.

The buffer tank 130 is connected to the water supply system 10 and can be automatically supplied when the water level of the buffer tank 130 drops below a predetermined water level.

A first valve V1 is provided around the pump 112 on the first flow path L1 and a second valve V2 is provided around the pump 112 on the second flow path L2. There is a branching flow path L3 which branches outwardly from between the first valve V1 and the discharge port 102 of the disaster prevention wall 100 and a third valve V3 is provided on the branching flow path L3.

The fluid in the space inside the disaster prevention wall 100 is circulated through the first flow path L1 through the second flow path L2 and the branch flow path L3 through the operation control of the valves V1 to V3, Lt; / RTI >

For example, when the first valve V1 is opened and the second valve V2 and the third valve V3 are closed, the fluid inside the disaster prevention wall 100 is discharged from the pump 112 And circulates in the closed loop along the first flow path L1 by operation.

When the first valve V1 is closed and the second valve V2 and the third valve V3 are opened, the fluid stored in the buffer tank 130 by the operation of the pump 112 flows through the second flow path L2 Flows into the inner space through the inlet 101 of the disaster prevention wall 100 via the second valve V2 and the pump 112 along the second valve V2 and the pump 112 and the fluid discharged through the discharge port 102 of the disaster prevention wall 100 Is discharged to the outside through the third valve (V3) along the branch flow path (L3), and flows into the open loop.

The control unit 120 controls the operation of each component of the disaster prevention wall system 1. [ For example, it is possible to generate and output a control signal for controlling the pumping operation of the pump 112, the opening / closing operation of the valves V1 to V3, and the like.

The control unit 120 is connected to the fire detection system 20 and detects a fire occurrence in a zone (for example, zone B (danger zone)) defined by the disaster prevention wall 100 to be controlled The first to third valves v1 to v3 are opened or closed according to the temperature of the fluid inside the disaster prevention wall 100 sensed by the temperature sensor 103 , And a control signal for operating the pump 112 can be generated and output.

In addition, when the fire detection ends or the fire situation ends, the control unit 120 may generate and output a control signal for stopping the pump 112 and closing all the opened valves.

A method of operating the disaster prevention wall system 1 in the control unit 120 will be described in detail with reference to the drawings.

4 is a flowchart showing an operation method of a disaster prevention wall system according to an embodiment of the present invention. Here, for convenience of understanding and explanation of the invention, it is assumed that the fluid received in the disaster prevention wall 100 is water.

First, when the fire detection system 20 detects a fire occurrence, the control unit 120 receives a fire occurrence signal from the fire detection system 20 (step S200).

The fire detection system 20 can detect whether a fire has occurred in the monitoring area through a sensing means such as a temperature sensor, a flame sensor, an image sensor or the like. The construction and operation of the fire detection system 20 will be apparent to those skilled in the art, and a detailed description thereof will be omitted.

The control unit 120 receiving the signal of occurrence of fire manages the flow of water inside the disaster prevention wall 100 (step S210).

Water flow management can be divided into closed loop flow control and open loop flow control.

First, the control unit 120 performs Perluff flow control (step S212).

In the case of closed loop flow control, the first valve (V1) is opened and the second and third valves (V2, V3) are closed to form a closed loop in operating the pump (112) Which means that the water circulates along the closed loop.

The temperature of the disaster prevention wall 100 itself is suppressed to some extent by the heat content of the water contained in the disaster prevention wall 100 through the closed loop flow control.

It is determined whether or not the water temperature inside the disaster prevention wall 100 sensed by the temperature sensor 103 provided on the disaster prevention wall 100 exceeds a preset first threshold value T1.

If the water temperature inside the disaster prevention wall 100 rises above the first threshold value T1, the control unit 120 switches the flow control to the open loop flow control because the closed loop flow control is limited (step S216).

In the case of the open loop flow control, when the pump 112 is operated, the first valve V1 is closed and the second and third valves V2 and V3 are opened to allow the cooling water to flow from the buffer tank 130, So that it can flow inside the wall 100.

Since the external cooling water continuously flows in comparison with the closed loop flow, it becomes possible to cool the disaster prevention wall 100 effectively even at a higher temperature outside the wall.

It is determined whether the water temperature inside the disaster prevention wall 100 sensed by the temperature sensor 103 provided in the disaster prevention wall 100 is lower than a preset second threshold value T2 in step S218. Here, the second threshold value T2 has a value higher than the first threshold value T1.

If the water temperature inside the disaster prevention wall 100 does not become the second threshold value T2 or less, the process returns to step S216 to continuously introduce the external cooling water.

The temperature rise of the disaster prevention wall 100 can be suppressed and the temperature can be lowered due to the continuous inflow of the external cooling water, so that it is possible to cope with the continuous fire and raise the fire rating of the disaster prevention wall 100.

If the water temperature inside the disaster prevention wall 100 becomes lower than the second threshold value T2, the process returns to step S212 to switch the flow control to the closed loop flow control.

Here, the buffer tank 130 is connected to the water supply system 10, so that when the water level of the buffer tank 130 drops below a predetermined height, the buffer tank 130 can be automatically watered to maintain a constant water level at all times.

If the signal indicating the end of the fire situation such as the end of fire detection is received from the fire detection system 20 during the repeated execution of the closed loop flow control and the open loop flow control at step S220, 112) and closes all of the opened valves (v1, v2, v3) (step S230).

It is a matter of course that the above-described method of operating the disaster prevention wall system may be carried out in an automated procedure in a time-series sequence by a built-in or installed program in the disaster prevention wall system. The codes and code segments that make up the program can be easily deduced by a computer programmer in the field. In addition, the program is stored in a computer readable medium readable by the digital processing apparatus, and is read and executed by the digital processing apparatus to implement the method. The information storage medium includes a magnetic recording medium, an optical recording medium, and a carrier wave medium.

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 or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

1: disaster prevention wall system 100a, 100b, 100c:
110: flow management unit 120:
130: Buffer tank 10: Water supply system
20: fire detection system 112: pump
V1, V2, V3: Valves 101a, 101b, 101c: Inlet
102a, 102b, 102c: Outlets 103a, 103b, 103c: Temperature sensor

Claims (9)

A disaster prevention wall for partitioning the plurality of zones and accommodating the fluid in the inner space;
A flow management unit for managing the flow of the fluid in the interior space of the disaster prevention wall;
And a control unit for controlling the flow management unit to divide and manage the fluid flow into a closed loop flow control and an open loop flow control according to a temperature of the fluid accommodated in the interior space of the disaster prevention wall,
The disaster prevention wall includes an inlet provided at a lower end thereof; An outlet provided at the upper end; And a temperature sensor installed in the internal space,
The flow management unit,
A pump for supplying the fluid through the inlet;
A first valve installed on a first flow path connecting the outlet and the pump;
A second valve installed on a second flow path connecting the pump and the buffer tank;
And a third valve installed on the branch flow path branching outward from a point between the discharge port and the first valve. delete delete The method according to claim 1,
The control unit is connected to a fire detection system,
And when the fire detection signal is received from the fire detection system, activates the pump and opens the first valve and closes the second valve and the third valve. 5. The method of claim 4,
Wherein the controller closes the first valve and opens the second valve and the third valve when the temperature sensed by the temperature sensor is equal to or greater than a first threshold value. 6. The method of claim 5,
Wherein the controller opens the first valve and closes the second valve and the third valve when the temperature sensed by the temperature sensor is lower than a second threshold value,
Wherein the second threshold is a temperature higher than the first threshold. A disaster prevention wall for partitioning the plurality of zones and accommodating the fluid in the inner space;
A flow management unit for managing the flow of the fluid in the interior space of the disaster prevention wall;
And a control unit for controlling the flow management unit to divide and manage the fluid flow into a closed loop flow control and an open loop flow control according to a temperature of the fluid accommodated in the interior space of the disaster prevention wall,
Wherein the front surface of the disaster prevention wall is in the form of a corrugated wall. A method for operating a disaster prevention wall system in a control part of a disaster prevention system in which a fluid accommodated in an inner space of a disaster prevention wall circulates along a first flow path or flows along a second flow path and a branch flow path,
(a) receiving a fire detection signal from a fire detection system;
(b) a closed loop flow control for circulating the flow of the fluid along the first flow path in accordance with the temperature of the fluid accommodated in the inner space, and an open loop loop) flow control; And
(c) terminating the flow management of the fluid when the fire situation is terminated,
The step (b)
(b1) performing closed-loop flow control until the temperature is above a first threshold;
(b2) performing the open loop flow control when the temperature is equal to or greater than a first threshold value;
(b3) returning to the step (b1) when the temperature is lower than a second threshold value,
And the second threshold value is higher than the first threshold value.
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