KR20160146185A

KR20160146185A - Pump tower

Info

Publication number: KR20160146185A
Application number: KR1020150083091A
Authority: KR
Inventors: 박동희; 진용민; 방창선; 이재훈; 조성인; 허원석; 황정오
Original assignee: 삼성중공업 주식회사
Priority date: 2015-06-12
Filing date: 2015-06-12
Publication date: 2016-12-21
Also published as: KR101690921B1

Abstract

A pump tower is initiated. The pump tower according to the embodiment of the present invention is formed as a bent piece such that the filling pipe is disposed on the upper side of the pump tower. In the state where the upper part formed with the inlet is fixed to the liquid dome cover so as to be adjacent to the discharge pipe, Is installed so as to face the inner wall of the heat insulating barrier formed on the side of the bulkhead of the stern of the cargo hold.

Description

Pump Tower {PUMP TOWER}

The present invention relates to a pump tower.

A ship carrying cryogenic liquefied cargo (for example, liquefied cargo (LNG)) has a cargo hold for liquefied cargo storage and a pump tower for liquefied cargo. For example, in the case of liquefied natural gas (LNG), it is liquefied at a cryogenic temperature of approximately -163 ° C and stored in a cargo hold. Because the cargo holds cryogenic liquefied material that is cooled at cryogenic temperatures, it is made of materials that can withstand cryogenic temperatures, is resistant to thermal stress and heat shrinkage, and has an insulation structure that can block heat intrusion. The cargo hold has a primary barrier, an upper insulation board, a secondary barrier and a lower insulation board in an outward direction from the inside, and is provided in a state of being coupled with an inner hull.

1 is a perspective view showing a conventional pump tower.

Referring to FIG. 1, the pump tower 10 typically includes a filling pipe P1 for introducing liquefied material into the cargo hold, two discharge pipes for discharging the liquefied material to the outside of the cargo hold, An emergency pipe P3 used in an emergency, and a connecting member 11 connecting these pipes P1 to P3 to each other.

The pump tower 10 is installed near a stern side bulkhead of the cargo hold and is fixed to a liquid dome cover 15 installed at the stern side of the cargo hold. . The discharge pipe P2 is disposed closer to the inner wall of the heat insulating barrier formed on the side of the partition wall than the emergency pipe P3.

The filling pipe P1 of the pump tower 10 is installed so as to descend to the bottom portion of the cargo hold like the other pipes P2 and P3 and the upper portion formed with the inlet is connected to the liquid dome cover 15 And the other part is arranged in parallel with the emergency pipe P3 in the vertical direction so that the outlet is lowered to the bottom of the cargo hold. At this time, the filling pipe P1 is connected to the emergency pipe P3 by the fixing member 13. [

However, in a state in which two discharge pipes P2 and one emergency pipe P3 are formed in a triangular shape so that there is no problem in the structural stability of the pump tower 10, (P1) is excessively designed. In this regard, please refer to Korean Patent Laid-Open No. 10-2012-0077627 (published on Jul. 10, 2012).

Korean Patent Publication No. 10-2012-0077627 (published on July 10, 2012)

An embodiment of the present invention seeks to provide a pump tower that allows efficient liquefied cargo flow through a simplified fill pipe structure.

According to an aspect of the present invention, there is provided a pump tower including a fill pipe for introducing a liquefied product into a cargo hold, a discharge pipe for discharging the liquefied product to the outside of the cargo hold, and an emergency pipe used in an emergency, Wherein the filling pipe is formed as a bent piece so as to be disposed on an upper side of the pump tower, and the outlet is formed in a state where the upper part formed with the inlet is fixed to the liquid dome cover so as to be adjacent to the discharge pipe, A pump tower installed to face the inner wall of the barriers may be provided.

The filling pipe may be provided in an " L " shape.

A pipe frame connected to the outlet, and a plurality of spray nozzles spaced apart from each other by a predetermined distance from the pipe frame, and spraying the liquefied material toward the inner wall.

The piping frame may further include a plurality of layer layers, and the filling pipe may further include a branch line connected to the uppermost pipe frame and branched from the fill pipe to be connected to another lower pipe frame.

The branch line may be provided with an on-off valve for controlling the inflow amount of the liquid cargo.

Each piping frame in which the layer layers are disposed may be formed in a semicircular shape, and the semicircular diameter of the lower piping frame may be smaller than that of the upper piping frame.

The injection nozzles provided in the respective pipe frames in which the layer layers are arranged may be arranged in a zigzag manner so that their positions do not overlap with each other.

And an ejection head including an engaging portion coupled to the outlet and an ejection port through which the liquefied material is ejected toward the inner wall, wherein the ejection head has the same cross sectional area as the ejection opening.

The ejection head may be formed in a shape that gradually decreases in width from the coupling portion toward the ejection port and gradually increases in width, and may be formed in a shape bent more than once to form a curved surface toward the ejection port in the coupling portion.

The pump tower according to the embodiment of the present invention can make effective liquefied cargo flow through the simplified charging pipe structure.

1 is a perspective view showing a conventional pump tower.
2 is a perspective view of a pump tower according to an embodiment of the present invention.
3 is a plan view showing a pipe arrangement structure of the pump tower shown in Fig.
4 is a cross-sectional view of a piping frame connected to the filling pipe shown in Fig.
FIG. 5 is a perspective view showing a multi-layer pipe frame shown in FIG.
FIG. 6 is a simplified illustration of a branch line connected to the multi-layer pipe frame shown in FIG.
Fig. 7 shows, as another example, an ejection head connected to the filling pipe shown in Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below are provided by way of example so that those skilled in the art will be able to fully understand the spirit of the present invention. The present invention is not limited to the embodiments described below, but may be embodied in other forms. In order to clearly explain the present invention, parts not related to the description are omitted from the drawings, and the width, length, thickness, etc. of the components may be exaggerated for convenience. Like reference numerals designate like elements throughout the specification.

Referring to FIGS. 2 and 3, a pump tower 100 according to an embodiment of the present invention includes a charging pipe 110 for introducing liquefied cargo into a cargo hold, a discharge pipe (not shown) for discharging liquefied cargo outside the cargo hold 120 and an emergency pipe 130 used in an emergency. The discharge pipe 120 and the emergency pipe 130 are connected by the connecting member 102 and the discharge pipe 120 and the emergency pipe 130 may be arranged in a triangular shape.

Here, the filling pipe 110 is a piece that is bent to be disposed on the upper side of the pump tower 100, and the upper part formed with the inlet 110a is connected to the liquid dome cover 101 so as to be adjacent to the discharge pipe 120 In the fixed state, the outlet 110b is installed so as to face the inner wall 100a of the heat insulating wall formed on the side of the bulkhead of the cargo hold.

The pump tower 100 can be used for various types of liquefied gas carriers, liquefied fuel RV (regasification vessels), container ships, general merchant ships, LNG FPSO (Floating, Production, Storage and Off-loading), LNG FSRU (Floating Storage and Regasification Unit) The present invention can be applied to a cargo hold of a ship including a ship.

The filling pipe 110 may be bent, for example, in an " L " shape. The outlet 110b of the charging pipe 110 may be installed close to the inner wall 100a so that the liquefied product flows down the inner wall 100a through the charging pipe 110. [

This can significantly reduce the length of the over-designed fill pipe in the prior art, thereby saving installation and material costs. The filling pipe 110 may be fixed to the adjacent discharge pipe 120 by a fixing member 105.

4, as another example, a plurality of pipe frames 142 connected to the outlet 110b of the filling pipe 110 and installed in the lateral direction, and a plurality of pipe frames 142 spaced apart from each other by a predetermined distance, An injection nozzle 144 for injecting the liquefied matter toward the inner wall 100a may be provided.

This is because the liquefied product flowing through the charging pipe 110 is dispersed and injected through the injection nozzle 144 provided in the pipe frame 142 so that the amount of impact applied to the inner wall 100a is reduced and effective liquefied cargo is introduced It is for this reason.

For example, the pipe frame 142 can be manufactured in a semicircular shape, and both ends are provided in a sealed state. In FIG. 4, the pipe frame 142 is installed in the lateral direction, but may be provided in the longitudinal direction.

The injection nozzles 144 disposed in the piping frame 142 are elongated as they are located outside the semicircular pipe frame 142 so that the ends of the respective injection nozzles 144 having different placement positions are formed on the inner walls 100a ) At the same and similar distances.

Referring to FIG. 5, as another example, the above-described pipe frame 142 may have a plurality of layer layers. At this time, the filling pipe 110 is connected to the uppermost first pipe frame 142a, and the lower second pipe frame 142b and the third pipe frame 142c disposed below the second pipe frame 142b The branch lines 111 and 112 may be connected to the branch lines 111 and 112, respectively.

The first branch line 111 may be branched at the charge pipe 110 and the second branch line 112 may be branched at the first branch line 111. [ In another example, the second branch line 112 may be branched directly from the charge pipe 110, like the first branch line 111.

For example, each of the pipe frames 142a, 142b, and 142c in which the layer is disposed may be provided in a semicircular shape. At this time, the semicircular diameter of the lower piping frame below the adjacent upper piping frame can be made smaller. That is, the semicircular diameter of the second pipe frame 142b below the first pipe frame 142a may be smaller than that of the second pipe frame 142b, and the semicircular diameter of the pipe frame 142c below the second pipe frame 142b Semicircular diameter can be made smaller. The thickness of each of the pipe frames 142a, 142b, and 142c may also be increased or decreased as the pipes are positioned lower.

The injection nozzles 144 of the pipe frames 142a, 142b, 142c may be arranged in a staggered manner so that their positions do not overlap with each other. This is to enable the liquefied matter to be effectively injected toward the inner wall 100a without being overlapped when the liquefied matter is injected through the injection nozzle 144 of each of the pipe frames 142a, 142b and 142c.

6, opening and closing valves V1 and V2 may be provided in the branch lines 111 and 112, respectively, to control the amount of liquid cargo introduced into the branch lines 111 and 112 so that an appropriate amount of liquefied cargo can be introduced through the branch lines 111 and 112, respectively have.

7 (a) to 7 (c), the ejection head 200 may be coupled to the outlet 110b of the filling pipe 110 described above. The jetting head 200 includes a coupling part 201 coupled to the outlet 110b of the charging pipe 110 and a jetting port 202 through which the liquefied product is jetted toward the inner wall 100a, 201 and the jet port 202 through which the liquefied matter is ejected may have the same cross sectional area. Further, the width D1 gradually decreases from the coupling portion 201 toward the jet port 202, and the width D2 gradually increases, so that the liquefied matter can be widely spread and ejected. This is also effective for load distribution of liquefied cargo.

In addition, the ejection head 200 may be bent at least once to form a curved surface toward the ejection port 202 from the engaging portion 201, so that the liquefied material can be smoothly ejected toward the inner wall 100a.

The foregoing has shown and described specific embodiments. However, it is to be understood that the present invention is not limited to the above-described embodiment, and various changes and modifications may be made without departing from the scope of the technical idea of the present invention described in the following claims It will be possible.

110: charge pipe 120: discharge pipe
130: emergency pipe 142: piping frame
144: injection nozzle V1, V2: opening / closing valve

Claims

1. A pump tower comprising a filling pipe for introducing liquefied material into a cargo hold, a discharge pipe for discharging the liquefied cargo outside the cargo hold, and an emergency pipe for emergency use,
Wherein the filling pipe is formed as a bent piece so as to be disposed on an upper side of the pump tower, wherein an outlet is formed on the side of the partition wall of the cargo hold with the upper portion formed with the inlet being fixed to the liquid dome cover so as to be adjacent to the discharge pipe A pump tower installed facing the inner wall of the insulation barrier.

The method according to claim 1,
Wherein the charging pipe is provided in an " L " shape.

The method according to claim 1,
A pipe frame connected to the outlet,
Further comprising a plurality of discharge nozzles spaced apart from each other by a predetermined distance on the pipe frame, and spraying the liquefied material toward the inner wall.

The method of claim 3,
Wherein the pipe frame is provided with a plurality of layer layers,
The filling pipe is connected to the uppermost pipe frame,
And a branch line branched from the charging pipe and connected to another lower piping frame.

5. The method of claim 4,
And the branch line is provided with an opening / closing valve for regulating the inflow amount of the liquid cargo.

5. The method of claim 4,
Wherein each of the pipe frames in which the layer layers are arranged is provided in a semicircular shape,
Pump tower with smaller semicircular diameter of lower piping frame compared to upper piping frame.

5. The method of claim 4,
Wherein the jetting nozzles provided in the respective pipe frames on which the layer layers are arranged are arranged in a zigzag manner so that their positions are not overlapped with each other.

The method according to claim 1,
Further comprising an ejection head including an engaging portion coupled to the outlet and an ejection port through which the liquefied material is ejected toward the inner wall, wherein the ejection head has the same cross sectional area as the ejection opening.

9. The method of claim 8,
Wherein the ejection head is formed such that its width gradually decreases from the engagement portion toward the ejection port, and the width gradually increases,
The pump tower being formed in a shape bent at least once so as to form a curved surface toward the jet port in the coupling portion.