KR20160084213A - Ventilation System of Lpg Carrier ship - Google Patents

Abstract

Disclosed is a ventilation system for an LPG carrier ship. The system includes: multiple cargo holds (110) installed in an LPG carrier ship by block unit, connected to a multichannel LPG supply line (130) selectively supplying LPG from the outside to multiple LPG storage tanks (120) through at least one first gas valve (V1), and individually including the LPG storage tanks (120); a refrigerant gas storage tank (140) connected to a multichannel refrigerant gas supply line (150) selectively supplying refrigerant gas to each of the cargo holds (110) through at least one second gas valve (V2), and cooling each of the LPG storage tanks (120); a multichannel leaked gas exhaust line (160) installed to discharge the refrigerant gas, injected into each of the cargo holds (110) through a third gas valve (V3), or the LPG, leaked from the LPG storage tanks (120), to a vessel ballast water storage tank and a chimney of the carrier ship depending on concentration; a control part (200) selectively controlling the first gas valve (V1), the second gas valve (V2), and the third gas valve (V3); and a display part (300) displaying the condition of an atmosphere in the cargo holds (110) and the operational condition of the first gas valve (V1), the second gas valve (V2), and the third gas valve (V3). Therefore, the present invention is capable of keeping safe the condition of the atmosphere in the cargo holds.

Description

[0001] The present invention relates to a ventilation system for an LPG carrier,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation system of a carrier, and more particularly to a ventilation system of an LP carrier.

Elpizia is commonly known as liquefied propane gas. When oil is extracted, natural gas is spouted with crude oil in the oil field. It is cooled by -200 ℃, or liquefied at room temperature by compressing it at high pressure of 7 ~ 10 atm.

In addition to propane (C3H8), propylene (C3H6), butane (C4H10), and butylene are the main components of LPG, and their heating value is higher than other fuels. LPG is easy to liquefy and vaporize, and when the gas is converted into liquid, the volume becomes small. When liquefied at room temperature (15 ° C), propane is reduced to a volume of 1/260 and butane is reduced to a volume of 1/230, which is convenient for storage and transportation.

Bhutan is used for automobile fuel (taxi, vans, etc.), heating, and moving burner fuel. Propane is mainly used for cooking, heating of large buildings such as apartments, industrial industrial use.

Accordingly, the prior art relates to a liquefied gas transportation system and a transportation method, and more particularly, to a liquefied gas transportation system and a transportation method capable of selectively transporting liquefied DME (dimethyle ether) and LPG (liquefied petroleum gas) .

The prior art conveying system is a liquefied gas conveying system 100 capable of loading, conveying, and unloading liquefied gas, in which liquefied pressure of DME gas or oil gas And a liquefied gas transportation facility 130 capable of transporting liquefied petroleum gas (hereinafter referred to as " liquefied gas "

On the other hand, LPG is chemically added with an easily identifiable odor because of the colorless ㆍ odorless or low flash point and the danger of suffocation and fire or the danger of hallucination. Because of the high consumption of oxygen, it is dangerous to use in an enclosed space. It is heavier than air, so if it leaks, it should be sucked into the vacuum from the bottom. If inhaled, it causes hallucination due to lack of oxygen supply in the brain.

Accordingly, it is an object of the present invention to provide a ventilation system for an LPG carrier capable of solving the above-mentioned problems.

Korean Patent Publication No. 10-2012-0126600 (title of the invention: liquefied gas transportation system)

The object of the present invention is to provide a method and apparatus for transporting an LPG through a carrier while cooling an LPG storage tank through a refrigerant gas and transferring the LPG to a cargo hold After checking the leakage of the LPG storage tank and the atmospheric pressure in the cargo hold, if there was an error, the manager manually operated the fan to vent the air in the cargo hold.

This process has the side effect that the manager is exposed to a high concentration of the lipid. Therefore, in the present invention, when the cargo hold is generated, the leakage gas generated in the cargo hold is supplied to the chimney of the ship and the ballast water according to the concentration to circulate the atmospheric state in the cargo hold, And to provide a ventilation system of an elastomeric transportation line which can be provided with a high efficiency.

Ventilation systems of the Injector carrier according to an embodiment of the present invention for solving the aforementioned problems is stored, is provided by Bullock unit within Injector carriers, the Injector the Injector externally provided via at least one first gas valve (V1) A multi-channel structure of the supply line 130 is connected to the tank 120, A plurality of cargo holds (110) each having a plurality of storage tanks (120); A multi-channel cooling gas supply line (150) configured to selectively supply the refrigerant gas to each of the plurality of cargo holds (110) is connected through at least one second gas valve (V2) A refrigerant gas storage tank 140 storing a refrigerant gas for cooling each of the tanks 120; The refrigerant gas injected into each of the plurality of cargo holds 110 through the third gas valve V3 or the elasti that is discharged due to the leakage of the storage tank 120 may be supplied to the chimney and the ship equilibrium A multi-channel leak gas exhaust line (160) arranged to be discharged to a water storage tank; A controller 200 for selectively controlling the first gas valve V1, the second gas valve V2, and the third gas valve V3; And a display unit 300 for displaying to the manager an operation state of the first gas valve V1, the second gas valve V2, and the third gas valve V3 in the standby state in the cargo hold 110 do.

The leaking gas exhaust line (160) includes an exhaust line (160b) connected to a chimney pipe located at the top of the ship and a ship ballast water storage tank located at the bottom; Internal exhaust lines (160a) located in the plurality of cargo holds (110) and connected to the external exhaust lines; And a fan unit 160aa connected to each of the internal exhaust lines 160b and driven in accordance with a control signal of the control unit 200. [

The plurality of cargo holds (110) are provided with a doorway on one side, and the doorway is provided with an object detection sensor (111) to detect the presence or absence of a person.

The external exhaust line 160b is characterized in that the switch gas valve 160ba is selectively connected to any one of the chimney pipe and the ballast water storage tank.

The control unit 200 controls to open the third gas valves V3 and the switch gas valve SV connected to the exhaust line when receiving the object detection signal outputted from the object detection sensor 111 .

Each of the plurality of cargo holds 110 is provided with a gas sensing sensor 112 for outputting a first sensing signal DET1 and a second sensing signal DET2 according to the concentration of the generated elastomer. do.

The control unit 200 controls the third gas valve V and the switch gas valve SV so that the gas flowing into the external exhaust line 160b flows through the third gas valve V and the switch gas valve SV, And is moved to the ship ballast water storage tank.

The control unit 200 controls the third gas valve V3 and the switch gas valve SV so that the gas flowing into the external exhaust line 160b flows through the third gas valve V3, And is driven to move to the chimney pipe.

The cooling gas supply line may include a gate valve, a globe valve, a control valve, a check valve, a butterfly valve, a ball valve, And a diaphragm valve valve, which are electronically or mechanically controlled. The sub-gas control valves 131-1 to 133-3 may include a sub-gas control valve 131-1 to 133-3.

The switch gas valve SV may be a gate valve, a globe valve, a control valve, a check valve, a butterfly valve, a ball valve ), And a diaphragm valve, and is electronically or mechanically controlled.

The ventilating system of an embodiment of the present invention can be applied to any one of the chimney pipe and the ship equilibrium water storage tank of the ship according to the concentration of the exposed liquefied gas when the liquefied gas stored in the liquefied gas storage tank is exposed to the outside Thereby providing an advantage that the standby state in the cargo hold can be safely maintained.

Also, when the manager enters the cargo hold through the object detection sensor provided in the cargo hold, the gas valve provided in the gas discharge line is automatically opened, thereby providing an advantage that the manager can prevent the damage due to the exposure of the lipid.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an exemplary view showing an embodiment of an embodiment of the present invention. FIG.
2 is a block diagram illustrating a ventilation system in accordance with an embodiment of the present invention.
3 is an exemplary view showing the details of the gas supply line, the internal exhaust line, and the refrigerant gas supply line provided in the cargo hold.
Figure 4 is a top view of Figure 3;
5 is a side view of Fig.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear.

Embodiments in accordance with the concepts of the present invention can make various changes and have various forms, so that specific embodiments are illustrated in the drawings and described in detail in this specification or application. It is to be understood, however, that it is not intended to limit the embodiments according to the concepts of the present invention to the particular forms of disclosure, 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. Other expressions that describe the relationship between components, such as "between" and "between" or "neighboring to" and "directly adjacent to" should be interpreted as well.

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 ", or the like, specify that there is a stated feature, number, step, operation, , Steps, operations, components, parts, or combinations thereof, as a matter of principle.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a ventilation system of an embodiment of the present invention and a driving method thereof will be described in detail with reference to the drawings.

2 is a block diagram illustrating a ventilation system according to an embodiment of the present invention. FIG. 3 is a schematic view of a ventilation system provided in a cargo hold, FIG. 4 is a top view of FIG. 3, and FIG. 5 is a side view of FIG. 3. FIG.

1 to 5, a ventilation system 100 of an LP carrier according to an embodiment of the present invention includes a plurality of cargo holds 110, an LP feeder line 130, a refrigerant gas supply line 150, A leakage gas exhaust line 160, a control unit 200, and a display unit 300.

The plurality of cargo holds (110) are arranged in a block unit in the carrier, and each of the cargo holds is designed to have a plurality of the slip storage tanks (120), and an entrance is provided at one side of the interior, (111) is provided to detect whether a person is present or not.

Here, a plurality of the plurality of the LP storage tanks 120 are installed in parallel to the width of the cargo hold 110 in the longitudinal direction. At this time, the slurry storage tanks 120 arranged in parallel are spaced apart from each other so as to prevent the pressure tanks from coming into contact with each other when the hull of the transportation vessel is deformed according to an external force such as wave, and between the neighboring slurry storage tanks, (Not shown) may be further provided.

2, the cargo hold 110 is provided with a leak gas detection sensor 112 therein. The leak detector 110 detects the amount of the leaked lipid according to the concentration due to internal or external factors, .

The dead space of the cargo hold 110 formed in a rectangular parallelepiped shape can be minimized and the space utilization of the cargo hold 110 can be maximized. As shown in FIG.

The inner deck of the cargo hold 110 is provided with a supporter member (not shown) for supporting the elastomer storage tank 120 to withstand the load of the elastomer storage tank 120, It is preferable that a structural reinforcing member (not shown) connected to a member (not shown) and reinforcing the strength of the inner deck is provided on the inner deck.

 Next, the LPG supply line 130 is connected to each of the plurality of LPG storage tanks 120, and supplies liquid externally provided through at least one first gas valve V1 to the LPG storage tank 120 Channel structure as shown in FIG.

The refrigerant gas storage tank 140 may be a space in which the refrigerant gas for cooling each of the storage tanks 120 is stored.

The refrigerant gas supply line 150 is formed in a multi-channel structure to selectively supply the refrigerant gas to each of the plurality of cargo holds 110 through at least one second gas valve V2.

The leaking gas exhaust line 160 is connected to the refrigerant gas injected into each of the plurality of cargo holds 110 through the third gas valve V3 or to the concentration of the refrigerant gas discharged from the reservoir tank 120 Channel structure so as to be discharged to the chimney of the carrier and the ballast water storage tank.

More specifically, the leaking gas exhaust line 160 includes external exhaust lines 160b, internal exhaust lines 160a, and a fan unit 160aa.

The outer exhaust line 160b is formed in a multi-channel structure, and is designed to be connected to a chimney pipe located at an upper portion of the ship and a ship ballast water storage tank located at a lower portion. The outer exhaust line 160b is connected to a switch gas A valve 160ba may be provided.

Accordingly, the external exhaust line 160b transfers the leaking gas flowing in the exhaust line to either the chimney pipe or the ballast water storage tank in accordance with the switching operation of the switch gas valve 160ba.

The inner exhaust line 160a is disposed in the plurality of cargo holds 110 in a multi-channel structure and is designed to be connected to the external exhaust line 160b.

The fan unit 160aa is connected to each of the internal exhaust lines 160a and is driven in accordance with a control signal of the controller 200 to suck the leaking gas generated in the cargo hold 110 .

The controller 200 selectively controls the first gas valve V1, the second gas valve V2, the third gas valve V3, the switch gas valve SV and the fan unit 160aa Function.

More specifically, when receiving the object detection signal output from the object detection sensor 111, the controller 200 opens the third gas valve V3 and the switch gas valve SV connected to the exhaust line And a control unit.

Each of the plurality of cargo holds (110) And a leakage gas detection sensor 112 for outputting a first sensing signal DET1 and a second sensing signal DET2 according to the concentration of the generated gas.

More specifically, the leakage gas detection sensor 112 has a threshold value set therein. When the concentration of the generated LPG in the cargo hold is smaller than the threshold value, the first detection signal DET1 is output, The second sensing signal DET2 is output to the control unit 200. [

When the control unit 200 receives the first sensing signal DET1, the control unit 200 controls the third gas valve V and the switch gas valve SV to control the internal exhaust line 160a and the external exhaust line 160b, So that the leaking gas flowing into the ship ballast water storage tank is moved to the ballast water storage tank.

When the control unit 200 receives the second sensing signal DET2, the third gas valve V3 and the switch gas valve SV are controlled to control the internal exhaust line 160a and the external exhaust line 160b to move to the chimney pipe.

Here, the first gas valve to the third gas valve may include a gate valve, a globe valve, a control valve, a check valve, a butterfly valve, A ball valve, and a diaphragm valve, and is electronically or mechanically controlled.

  The switch gas valve SV may be a gate valve, a globe valve, a control valve, a check valve, a butterfly valve, a ball valve valve, and diaphragm valve, and is electronically or mechanically controlled.

The display unit 300 displays the standby state (e.g., whether leakage gas is generated) in the cargo hold 110 to the manager and controls the first gas valve V1, the second gas valve V2, (V3) to the administrator.

Therefore, in the ventilating system of the present invention, when the stored liquefied gas in the liquefied storage tank is exposed to the outside due to internal or external factors, the exposed liquefied gas is supplied to the liquefied pipe Thereby providing an advantage that the standby state in the cargo hold can be safely maintained.

Further, when the manager enters the cargo hold through the object detection sensor provided in the cargo hold, the gas valve provided in the exhaust line is automatically opened, thereby providing an advantage that the administrator can prevent the damage due to the exposure of the lipid.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications, and variations will readily occur to those skilled in the art without departing from the spirit and scope of the invention. Therefore, it should be understood that the disclosed embodiments are to be considered in an illustrative rather than a restrictive sense, and that the true scope of the invention is indicated by the appended claims rather than by the foregoing description, and all differences within the scope of equivalents thereof, .

100: Ventilation system
120: an elastomer storage tank 110: a cargo hold
111: object detection sensor 112: leak gas detection sensor
130: Elpida supply line 140: Refrigerant gas storage tank
150: Refrigerant gas supply line 160: Leakage gas exhaust line
160b: external exhaust line 160a: internal exhaust line
160aa: Fan unit 200: Control unit
300: Display portion V1: First gas valve
V2: second gas valve V3: third gas valve
SV: Switch gas valve

Claims (10)

A multi-channel structure of an elastomer feed line 130 (see FIG. 1) provided in the elastomer transporting line and configured to selectively supply an externally provided elastomer to the elastomer storage tank 120 through at least one first gas valve V1, ) Is connected A plurality of cargo holds (110) each having a plurality of storage tanks (120);
A multi-channel cooling gas supply line (150) configured to selectively supply the refrigerant gas to each of the plurality of cargo holds (110) is connected through at least one second gas valve (V2) A refrigerant gas storage tank 140 storing a refrigerant gas for cooling each of the tanks 120;
The refrigerant gas injected into each of the plurality of cargo holds 110 through the third gas valve V3 or the elasti that is discharged due to the leakage of the storage tank 120 may be supplied to the chimney and the ship equilibrium A multi-channel leak gas exhaust line (160) arranged to be discharged to a water storage tank;
A controller 200 for selectively controlling the first gas valve V1, the second gas valve V2, and the third gas valve V3; And
And a display unit (300) for displaying to a manager an operation state of the first gas valve (V1), the second gas valve (V2), and the third gas valve (V3) in the waiting state in the cargo hold Ventilation system of an LPG carrier.
The exhaust gas purifying apparatus according to claim 1, wherein the leakage gas exhaust line (160)
An external exhaust line 160b connected to the chimney pipe located at the top of the cargo ship and the ballast water storage tank located at the bottom;
Internal exhaust lines (160a) located in the plurality of cargo holds (110) and connected to the external exhaust line (160b); And
And a fan unit (163) connected to each of the internal exhaust lines (160a) and driven in accordance with a control signal of the control unit (200).
[2] The automotive vehicle of claim 1, wherein the plurality of cargo holds (110)
Wherein an entrance is provided on one side and an object detection sensor (111) is provided on the entrance to detect whether a person is pulled in.
The exhaust system according to claim 2, wherein the external exhaust line (160b)
Wherein the switch gas valve SV is selectively connected to any one of the chimney pipe and the ballast water storage tank.
5. The method of claim 4,
The control unit 200 controls to open the third gas valves V3 and the switch gas valve SV connected to the exhaust line when receiving the object detection signal outputted from the object detection sensor 111 Characterized in that the ventilation system of the lyse carrier.
5. The method of claim 4,
Each of the plurality of cargo holds 110 is provided with a gas sensing sensor 112 for outputting a first sensing signal DET1 and a second sensing signal DET2 depending on the concentration of the generated gas. Ventilation system of an alpine carrier.
The method according to claim 6,
When the first sensing signal DET1 is received, the controller 200 controls the third gas valve V and the switch gas valve SV so that the leakage gas flowing into the external exhaust line 160b And is driven to move to the ship ballast water storage tank.
The method according to claim 6,
The control unit 200 controls the third gas valve V3 and the switch gas valve SV so that the leakage gas flowing into the external exhaust line 160b And is driven to move to the chimney pipe.
The cooling system according to claim 1, wherein the cooling gas supply line
A gate valve, a globe valve, a control valve, a check valve, a butterfly valve, a ball valve, a diaphragm valve, Wherein the gas supply control valve comprises any one of sub gas control valves 131-1 to 133-3 which are electronically or mechanically controlled.
5. The apparatus according to claim 4, wherein the switch gas valve (SV)
A gate valve, a globe valve, a control valve, a check valve, a butterfly valve, a ball valve, a diaphragm valve, Characterized in that it is an electronic or mechanically controlled ventilation system.

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