KR102647303B1 - Vaporizer for Cryogenic Liquefied Gas - Google Patents

Vaporizer for Cryogenic Liquefied Gas Download PDF

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KR102647303B1
KR102647303B1 KR1020180132901A KR20180132901A KR102647303B1 KR 102647303 B1 KR102647303 B1 KR 102647303B1 KR 1020180132901 A KR1020180132901 A KR 1020180132901A KR 20180132901 A KR20180132901 A KR 20180132901A KR 102647303 B1 KR102647303 B1 KR 102647303B1
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block
liquefied gas
vaporizer
cryogenic liquefied
blocks
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KR1020180132901A
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Korean (ko)
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KR20200050194A (en
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김재휘
강동억
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한화오션 주식회사
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C7/00—Methods or apparatus for discharging liquefied, solidified, or compressed gases from pressure vessels, not covered by another subclass
    • F17C7/02—Discharging liquefied gases
    • F17C7/04—Discharging liquefied gases with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C9/00—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure
    • F17C9/02—Methods or apparatus for discharging liquefied or solidified gases from vessels not under pressure with change of state, e.g. vaporisation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D9/00—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D9/0031—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other
    • F28D9/0037—Heat-exchange apparatus having stationary plate-like or laminated conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits for one heat-exchange medium being formed by paired plates touching each other the conduits for the other heat-exchange medium also being formed by paired plates touching each other
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F3/00—Plate-like or laminated elements; Assemblies of plate-like or laminated elements
    • F28F3/12—Elements constructed in the shape of a hollow panel, e.g. with channels
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2221/00—Handled fluid, in particular type of fluid
    • F17C2221/01—Pure fluids
    • F17C2221/014—Nitrogen
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
    • F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
    • F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
    • F17C2227/03—Heat exchange with the fluid
    • F17C2227/0302—Heat exchange with the fluid by heating
    • F17C2227/0309—Heat exchange with the fluid by heating using another fluid
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
    • F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
    • F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
    • F28D2021/0061—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for phase-change applications
    • F28D2021/0064—Vaporizers, e.g. evaporators

Abstract

극저온 액화가스용 기화기가 개시된다.
상기 극저온 액화가스용 기화기는, 액화가스가 흐르는 다수개의 제1 유로를 포함하는 제1 블럭; 액화가스에 열을 전달하는 열매가 흐르는 다수개의 제2 유로를 포함하는 제2 블럭; 및 유체가 흐르지 않는 다수개의 공극을 포함하는 제3 블럭;을 포함하고, 상기 제3 블럭은 상기 제1 블럭과 상기 제2 블럭 사이에 위치한다.A vaporizer for cryogenic liquefied gas is disclosed.
The vaporizer for cryogenic liquefied gas includes a first block including a plurality of first flow paths through which the liquefied gas flows; A second block including a plurality of second flow paths through which heat that transfers heat to the liquefied gas flows; and a third block including a plurality of voids through which fluid does not flow, wherein the third block is located between the first block and the second block.

Description

극저온 액화가스용 기화기{Vaporizer for Cryogenic Liquefied Gas}Vaporizer for Cryogenic Liquefied Gas}

본 발명은 유로의 배치를 개선한 극저온 액화가스용 기화기에 관한 것이다.The present invention relates to a vaporizer for cryogenic liquefied gas with improved flow path arrangement.

도 1은 종래의 극저온 액화가스용 기화기의 단면도이다.Figure 1 is a cross-sectional view of a conventional vaporizer for cryogenic liquefied gas.

도 1을 참조하면, 종래의 극저온 액화가스용 기화기는, 액화가스가 흐르는 다수개의 제1 유로(F1)를 포함하는 제1 블럭(B1)과, 액화가스에 열을 전달하는 열매가 흐르는 다수개의 제2 유로(F2)를 포함하는 제2 블럭(B2)이 교대로 적층되어 형성되었다.Referring to FIG. 1, a conventional vaporizer for cryogenic liquefied gas includes a first block (B1) including a plurality of first flow paths (F1) through which the liquefied gas flows, and a plurality of heat transfer channels through which the heat transfer to the liquefied gas flows. The second blocks B2 including the second flow paths F2 were formed by alternately stacking them.

종래의 극저온 액화가스용 기화기에 의하면, 액화가스의 유량이 증가하는 경우에 열매가 동결되는 문제점이 있었다. 열매가 동결되면, 열매가 흐르는 제2 유로(F2)가 막히게 되므로 기화기가 제대로 작동할 수 없게 된다.According to the conventional vaporizer for cryogenic liquefied gas, there was a problem in that the fruit froze when the flow rate of liquefied gas increased. When the fruit freezes, the second flow path (F2) through which the fruit flows is blocked, so the vaporizer cannot operate properly.

본 발명의 발명자들은 액화질소(LN2)로 기화기의 성능 실험을 해본 결과, 도 1에 도시된 바와 같은 종래의 극저온 액화가스용 기화기에 의하면, 액화가스의 유량이 증가하는 경우에 열매가 동결된다는 사실을 발견하였으며, 액화가스의 유량이 증가하는 경우에 열매가 동결되는 현상은, 액화질소, 액화천연가스(LNG) 등 극저온 액화가스가 흐르는 제1 유로(F1)와 열매가 흐르는 제2 유로(F2)가 인접하여 배치됨으로 인하여 발생한다는 것은 알아내었다.The inventors of the present invention tested the performance of a vaporizer with liquefied nitrogen (LN 2 ) and found that according to the conventional vaporizer for cryogenic liquefied gas as shown in FIG. 1, the fruit freezes when the flow rate of liquefied gas increases. It was discovered that the phenomenon of fruit freezing when the flow rate of liquefied gas increases is caused by the first flow path (F1) through which cryogenic liquefied gas such as liquefied nitrogen and liquefied natural gas (LNG) flows and the second flow path through which fruit flows ( It was found that F2) occurs due to being placed adjacent to each other.

본 발명은 극저온 액화가스의 유량을 증가시켜도 열매가 동결되지 않도록 유로의 배치를 개선한 극저온 액화가스용 기화기에 관한 것이다.The present invention relates to a vaporizer for cryogenic liquefied gas in which the arrangement of the flow path has been improved to prevent the fruit from freezing even when the flow rate of cryogenic liquefied gas is increased.

상기 목적을 달성하기 위한 본 발명의 일 측면에 따르면, 액화가스가 흐르는 다수개의 제1 유로를 포함하는 제1 블럭; 액화가스에 열을 전달하는 열매가 흐르는 다수개의 제2 유로를 포함하는 제2 블럭; 및 유체가 흐르지 않는 다수개의 공극을 포함하는 제3 블럭;을 포함하고, 상기 제3 블럭은 상기 제1 블럭과 상기 제2 블럭 사이에 위치하는, 극저온 액화가스용 기화기가 제공된다.According to one aspect of the present invention for achieving the above object, a first block including a plurality of first flow paths through which liquefied gas flows; A second block including a plurality of second flow paths through which heat that transfers heat to the liquefied gas flows; and a third block including a plurality of pores through which fluid does not flow, wherein the third block is located between the first block and the second block.

상기 제3 블럭은 다수개가 연속으로 적층될 수 있다.A plurality of the third blocks may be stacked in succession.

상기 제2 블럭은 다수개가 연속으로 적층될 수 있다.A plurality of the second blocks may be stacked in succession.

상기 제1 블럭은 다수개가 연속으로 적층될 수 있다.A plurality of the first blocks may be stacked in succession.

본 발명에 의하면, 액화가스가 흐르는 제1 블럭과 열매가 흐르는 제2 블럭 사이에 위치하여, 액화가스의 냉열이 열매로 전달되지 않도록 냉열의 일부를 차단하는 제3 블럭을 포함하므로, 제2 블럭의 제2 유로가 동결될 확률이 낮아진다.According to the present invention, it is located between the first block through which the liquefied gas flows and the second block through which the fruit flows, and includes a third block that blocks part of the cold heat of the liquefied gas so that it is not transferred to the fruit, so that the second block The probability of the second euro being frozen decreases.

도 1은 종래의 극저온 액화가스용 기화기의 단면도이다.
도 2는 본 발명의 바람직한 실시예에 따른 극저온 액화가스용 기화기의 단면도이다.Figure 1 is a cross-sectional view of a conventional vaporizer for cryogenic liquefied gas.
Figure 2 is a cross-sectional view of a vaporizer for cryogenic liquefied gas according to a preferred embodiment of the present invention.

이하 첨부한 도면을 참조하여 본 발명의 바람직한 실시예에 대한 구성 및 작용을 상세히 설명하면 다음과 같다. 하기 실시예는 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 하기 실시예에 한정되는 것은 아니다.Hereinafter, the structure and operation of a preferred embodiment of the present invention will be described in detail with reference to the attached drawings. The following examples may be modified into various other forms, and the scope of the present invention is not limited to the following examples.

도 2는 본 발명의 바람직한 실시예에 따른 극저온 액화가스용 기화기의 단면도이다.Figure 2 is a cross-sectional view of a vaporizer for cryogenic liquefied gas according to a preferred embodiment of the present invention.

도 2를 참조하면, 본 실시예의 극저온 액화가스용 기화기는, 액화가스가 흐르는 다수개의 제1 유로(F1)를 포함하는 제1 블럭(B1)과, 액화가스에 열을 전달하는 열매가 흐르는 다수개의 제2 유로(F2)를 포함하는 제2 블럭(B2)과, 유체가 흐르지 않는 다수개의 공극(F3)을 포함하는 제3 블럭(B3)을 포함한다.Referring to FIG. 2, the vaporizer for cryogenic liquefied gas of this embodiment includes a first block (B1) including a plurality of first flow paths (F1) through which the liquefied gas flows, and a plurality of heat transfer channels through which the heat transfer to the liquefied gas flows. It includes a second block (B2) including two second flow paths (F2) and a third block (B3) including a plurality of voids (F3) through which fluid does not flow.

제3 블럭(B3)은, 제1 블럭(B1)과 제2 블럭(B2) 사이에 위치하여, 제1 블럭(B1)을 흐르는 액화가스의 냉열의 일부가 제2 블럭(B2)을 흐르는 열매로 전달되지 않도록 차단하는 역할을 한다.The third block (B3) is located between the first block (B1) and the second block (B2), and a portion of the cold heat of the liquefied gas flowing through the first block (B1) flows through the second block (B2). It serves to block it from being transmitted to .

도 2에는 두 개의 제3 블럭(B3)이 연속으로 적층되는 것을 도시하였으나, 본 발명이 이에 한정되는 것은 아니며, 제1 블럭(B1)과 제2 블럭(B2) 사이에 하나의 제3 블럭(B3)만이 위치할 수도 있으며, 세 개 이상의 제3 블럭(B3)이 연속으로 적층될 수도 있다.In Figure 2, two third blocks (B3) are shown to be stacked in succession, but the present invention is not limited to this, and one third block (B3) is formed between the first block (B1) and the second block (B2). Only B3) may be located, or three or more third blocks B3 may be stacked in succession.

본 실시예에 의하면, 제3 블럭(B3)에 의해 액화가스의 냉열의 일부가 차단되므로, 열매가 흐르는 제2 블럭(B2)의 제2 유로(F2)가 동결될 확률이 낮아진다.According to this embodiment, a part of the cold heat of the liquefied gas is blocked by the third block (B3), so the probability that the second flow path (F2) of the second block (B2) through which the fruit flows is frozen is reduced.

본 실시예에 의하면, 다수개의 제2 블럭(B2)이 연속으로 적층될 수 있다. 열매가 흐르는 제2 블럭(B2)을 다수개 연속으로 적층하면, 극저온 액화가스가 흐르는 제1 블럭(B1)과 가깝게 위치한 제2 블럭(B2)의 제2 유로(F2)가 동결되어도, 제1 블럭(B1)과 인접하지 않은 다른 제2 블럭(B2)의 제2 유로(F2)는 동결되지 않으므로, 기화기가 작동할 수 있게 된다.According to this embodiment, a plurality of second blocks B2 can be stacked in succession. If a plurality of second blocks (B2) through which fruit flows are stacked in succession, even if the second flow path (F2) of the second block (B2) located close to the first block (B1) through which cryogenic liquefied gas flows is frozen, the first block (B2) through which the cryogenic liquefied gas flows is stacked in succession. Since the second flow path (F2) of the other second block (B2) that is not adjacent to the block (B1) is not frozen, the vaporizer can operate.

또한, 본 실시예에 의하면, 재기화시킬 액화가스의 양이 많은 경우에 다수개의 제1 블럭(B1)을 연속으로 적층할 수도 있다. 그러나, 제1 블럭(B1)의 개수가 많아지면 액화가스의 냉열도 증가하게 되므로, 열매가 흐르는 제2 블럭(B2)의 제2 유로(F2)가 동결될 확률이 높아진다. 따라서, 제2 블럭(B2)의 제2 유로(F2)가 동결될 가능성을 고려하여, 필요한 경우에만 제1 블럭(B1)의 개수를 증가시키는 것이 바람직하다.Additionally, according to this embodiment, when the amount of liquefied gas to be regasified is large, a plurality of first blocks B1 may be stacked in succession. However, as the number of first blocks (B1) increases, the cold heat of the liquefied gas also increases, so the probability that the second flow path (F2) of the second block (B2) through which the fruit flows will freeze increases. Therefore, considering the possibility that the second flow path F2 of the second block B2 may be frozen, it is desirable to increase the number of first blocks B1 only when necessary.

본 발명은 상기 실시예에 한정되지 않고, 본 발명의 기술적 요지를 벗어나지 아니하는 범위 내에서 다양하게 수정 또는 변형되어 실시될 수 있음은 본 발명이 속하는 기술분야에서 통상의 지식을 가진 자에 있어서 자명한 것이다.The present invention is not limited to the above-mentioned embodiments, and it is obvious to those skilled in the art that the present invention can be implemented with various modifications or variations without departing from the technical gist of the present invention. It was done.

B1 : 제1 블럭 B2 : 제2 블럭
B3 : 제3 블럭 F1 : 제1 유로
F2 : 제2 유로 F3 : 공극B1: 1st block B2: 2nd block
B3: 3rd block F1: 1st flow path
F2: Second flow path F3: Air gap

Claims (4)

액화가스가 흐르는 다수개의 제1 유로를 포함하는 제1 블럭;
액화가스에 열을 전달하는 열매가 흐르는 다수개의 제2 유로를 포함하는 제2 블럭; 및
유체가 흐르지 않는 다수개의 공극을 포함하는 제3 블럭;을 포함하고,
상기 제3 블럭은 상기 제1 블럭과 상기 제2 블럭 사이에 위치하고,
상기 제3 블럭과 상기 제2 블럭 사이에 상기 제1 블럭이 위치하는 구간을 포함하지 않는, 극저온 액화가스용 기화기.A first block including a plurality of first flow paths through which liquefied gas flows;
A second block including a plurality of second flow paths through which heat that transfers heat to the liquefied gas flows; and
It includes a third block including a plurality of pores through which fluid does not flow,
The third block is located between the first block and the second block,
A vaporizer for cryogenic liquefied gas, which does not include a section in which the first block is located between the third block and the second block. 청구항 1에 있어서,
상기 제3 블럭은 다수개가 연속으로 적층되는, 극저온 액화가스용 기화기.In claim 1,
A vaporizer for cryogenic liquefied gas in which a plurality of the third blocks are stacked in succession. 청구항 1에 있어서,
상기 제2 블럭은 다수개가 연속으로 적층되는, 극저온 액화가스용 기화기.In claim 1,
A vaporizer for cryogenic liquefied gas in which a plurality of the second blocks are stacked in succession. 청구항 1에 있어서,
상기 제1 블럭은 다수개가 연속으로 적층되는, 극저온 액화가스용 기화기.In claim 1,
A vaporizer for cryogenic liquefied gas in which a plurality of the first blocks are stacked in succession.
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Citations (1)

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Publication number Priority date Publication date Assignee Title
KR101376531B1 (en) * 2012-11-22 2014-03-19 주식회사 코헥스 Liquefied natural gas evaporating system for natural gas fueled ship

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101376531B1 (en) * 2012-11-22 2014-03-19 주식회사 코헥스 Liquefied natural gas evaporating system for natural gas fueled ship

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