KR100898997B1 - Plate type heat exchanger with channel for fresh water generator - Google Patents

Plate type heat exchanger with channel for fresh water generator Download PDF

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Publication number
KR100898997B1
KR100898997B1 KR1020070088566A KR20070088566A KR100898997B1 KR 100898997 B1 KR100898997 B1 KR 100898997B1 KR 1020070088566 A KR1020070088566 A KR 1020070088566A KR 20070088566 A KR20070088566 A KR 20070088566A KR 100898997 B1 KR100898997 B1 KR 100898997B1
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South Korea
Prior art keywords
heat exchanger
plate
channel
fresh water
plate heat
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KR1020070088566A
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Korean (ko)
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KR20090022893A (en
Inventor
김강희
홍성희
김창수
배찬효
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주식회사 동화엔텍
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Priority to KR1020070088566A priority Critical patent/KR100898997B1/en
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    • 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
    • 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
    • F28D9/0025—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 being formed by zig-zag bend plates
    • 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
    • F28D9/0043—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 plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another
    • F28D9/005—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 plates having openings therein for circulation of at least one heat-exchange medium from one conduit to another the plates having openings therein for both heat-exchange media
    • 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
    • F28F3/08—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning
    • F28F3/086—Elements constructed for building-up into stacks, e.g. capable of being taken apart for cleaning having one or more openings therein forming tubular heat-exchange passages
    • 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
    • F28F3/14—Elements constructed in the shape of a hollow panel, e.g. with channels by separating portions of a pair of joined sheets to form channels, e.g. by inflation

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

본 발명은 채널이 형성된 판형 열교환기에 관한 것으로 해수를 증발시켜 담수를 얻는 조수기에 사용되는 판형 열교환기의 내부에 염분등이 누적되어 통로가 막히는 파울링을 방지하기 위하여 표면에 세브론 각을 이루는 홈 이루는 홈이 형성되어 있는 다수개의 판으로 이루어진 판형 열교환기에 있어서, 상기 판의 하측에 상기 홈을 가로질러 가로로 길게 형성되는 채널;이 형성되는 것을 특징으로 하는 채널이 형성된 판형 열교환기를 기술적 요지로 한다. 이에 따라 유로를 따라 흐르는 유체의 유속이 일정하게 유지되어 파울링이 방지되며 다량의 담수를 용이하게 얻을 수 있다는 효과가 있다.The present invention relates to a plate heat exchanger in which a channel is formed to form a Severon angle on the surface of the plate heat exchanger for evaporating seawater to obtain fresh water. In the plate heat exchanger consisting of a plurality of plates in which grooves are formed, the channel is formed horizontally across the groove in the lower side of the plate; plate-shaped heat exchanger having a channel, characterized in that formed do. Accordingly, the flow rate of the fluid flowing along the flow path is kept constant, fouling is prevented and a large amount of fresh water can be easily obtained.

판형 열교환기 유로 파울링 채널 조수기 Plate Heat Exchanger Euro Fouling Channel Tanker

Description

채널이 형성된 판형 열교환기{plate type heat exchanger with channel for fresh water generator}Plate type heat exchanger with channel for fresh water generator}

본 발명은 판형 열교환기에 관한 것으로 보다 상세하게는 해수를 담수로 변환하는 조수기에서 판의 하측에 채널을 가로로 형성하여 작동유체가 판의 표면에 형성된 유로를 따라 일정한 속도로 흐를 수 있도록 한 채널이 형성된 판형열교환기에 관한 것이다.The present invention relates to a plate heat exchanger, and more particularly, in a water tanker for converting seawater into fresh water, a channel is formed horizontally at a lower side of the plate so that a working fluid can flow at a constant speed along a flow path formed on the surface of the plate. It relates to a plate heat exchanger formed.

일반적으로 선박에는 선적할 수 있는 중량에 한계가 있으므로 충분한 담수를 실고 다니는 대신 해수로부터 담수를 만들어 사용하게 된다. 이를 위해서는 엔진에서 발생하는 열을 이용하여 해수를 증발시킨 후 수증기를 냉각시켜 담수를 만들게 된다. 종래에 이러한 조수기에 사용되는 판형 열교환기의 경우에는 판에 유로를 형성하고 도1에 도시된 것과 같이 이러한 판을 다수개 겹쳐 판형 열교환기를 제작하고 이를 도2에 도시된 것과 같이 엔진을 냉각시킨 냉각수와 해수를 통과시켜 냉각수의 열을 해수로 전달하여 해수를 증발시키게 되고 상기 증발된 수증기는 판의 상측으로 이동하게 된다. 이때 상기 판의 가장자리에 설치되어 유체가 외부로 빠져나가는 것을 방지하는 가스켓의 상부가 제거되어 있으므로 상기 수증기는 상측 의 틈을 통해 외부로 배출된 후 도2의 응축기로 전달되어 응축되어 담수가 된다. In general, ships have a limit to the weight they can ship, so instead of carrying enough fresh water, fresh water is made from seawater. To this end, the seawater is evaporated using the heat generated by the engine and the steam is cooled to make fresh water. In the case of a plate heat exchanger conventionally used in such a water dispenser, a flow path is formed in a plate and a plate heat exchanger is manufactured by stacking a plurality of such plates as shown in FIG. 1 and cooling the engine as shown in FIG. Passing the cooling water and seawater transfers the heat of the cooling water to the seawater to evaporate the seawater, and the vaporized water vapor moves to the upper side of the plate. At this time, since the upper part of the gasket is installed at the edge of the plate to prevent the fluid from flowing out, the water vapor is discharged to the outside through the upper gap and then transferred to the condenser of FIG. 2 to condense and become fresh water.

이때 낮은 온도에서도 증발이 이루어질 수 있도록 하기 위해 챔버내의 기압을 저압으로 두게 된다. 예를 들어 700mmhg의 압력일 경우 물은 50도씨에서 증발하게 된다. At this time, the pressure in the chamber is kept at a low pressure to allow evaporation even at low temperatures. For example, at a pressure of 700 mmhg, water will evaporate at 50 degrees Celsius.

상기 열교환기에서는 상기 판에는 전체적으로 냉각수와 해수가 통과할 수 있도록 연속되는 홈을 형성하게 된다. 상기 홈은 세브론 각을 이루도록 구성되어 구조적으로 안정적이며 열전달 특성을 가질 수 있도록 구성한다.In the heat exchanger, the plate forms a continuous groove so that the cooling water and the seawater can pass through the plate as a whole. The groove is configured to have a Severon angle and is structurally stable and configured to have heat transfer characteristics.

상기와 같이 구성된 조수기는 외부에서 유입된 해수를 증발시켜 담수화하므로 수증기가 증발된 후 염분 등의 이물질이 판에 남아있게 된다. 따라서 일반적으로 판에서 증발하는 양 보다 더 많은 해수를 공급하게 된다. 이는 해수 중 일부는 증발한 후 응축되어 담수가 되며 나머지 해수는 해수가 증발하면서 남은 염분 기타 이물질을 판에서 씻어낼 수 있도록 하기 위함이다. Since the water tank configured as described above is desalted by evaporating the seawater introduced from the outside, foreign substances such as salt remain on the plate after the water vapor is evaporated. Therefore, in general, more seawater is supplied than the amount of evaporation from the plates. This is to ensure that some of the seawater is evaporated and then condensed and freshwater, while the rest of the seawater is able to wash away the remaining salt and other foreign matter from the plates.

그러나 상기와 같이 많은 양의 해수를 공급하였으나 판 전체를 봤을 때 일정부분에 흐르는 해수의 양이 부족할 경우, 그 부분에서는 증발하고 남은 염분등 이물질을 밖으로 배출하기 곤란하여 유로가 좁아지는 파울링이 시작된다는 문제점이 있다.However, if a large amount of seawater is supplied as described above, but the amount of seawater flowing in a certain portion is insufficient when looking at the whole plate, fouling begins to narrow the flow path because it is difficult to discharge foreign substances such as salinity remaining after evaporation in that portion. There is a problem.

즉 입구측은 유입되는 해수의 양이 많으므로 염분이 상기 해수에 의해 씻겨 제거되나 입구에서 멀리 떨어진 쪽은 통과하는 해수의 양이 적어 염분을 제거하지 못하므로 염분이 판에 쌓여 파울링이 발생하게 된다. That is, since the inlet side has a large amount of incoming seawater, the salt is washed away by the seawater and removed. However, the far side from the inlet does not remove the salt due to the small amount of seawater passing through. .

본 발명은 상기의 문제점을 해결하기 위해 발명된 것으로 판 전체의 유속이 모두 일정하도록 하여 파울링의 발생을 억제할 수 있는 채널이 형성된 판형 열교환기를 제공하는 것을 주목적으로 한다. The present invention has been invented to solve the above problems, and the main object of the present invention is to provide a plate heat exchanger having a channel capable of suppressing the occurrence of fouling by making the flow rate of the entire plate constant.

또한 열효율이 높아 조수기에 사용시 다량의 담수를 얻을 수 있는 채널이 형성된 판형열교환기를 제공하는 것을 주목적으로 한다.In addition, it is a primary object of the present invention to provide a plate heat exchanger having a channel having a high heat efficiency and a channel capable of obtaining a large amount of fresh water when used in a water heater.

본 발명은 상기의 목적을 달성하기 위하여 표면에 세브론 각을 이루는 홈이 형성되어 있는 다수개의 판으로 이루어진 판형 열교환기에 있어서, 상기 판의 하측에 상기 홈을 가로질러 가로로 길게 형성되는 채널;이 형성되는 것을 특징으로 하는 채널이 형성된 판형 열교환기를 기술적 요지로 한다.The present invention is a plate heat exchanger consisting of a plurality of plates formed with a groove forming a Severon angle on the surface in order to achieve the above object, the channel formed on the lower side of the plate horizontally across the groove; The plate-shaped heat exchanger in which the channel is formed is characterized by the technical subject matter.

상술한 바와 같이 본 발명의 채널이 형성된 판형 열교환기에 의하면 작동유체가 먼저 채널을 따라 진행한 후 상측의 유로를 따라 상승하게 되므로 유입구에서의 거리와 관계없이 일정한 유속을 얻을 수 있어 파울링을 방지할 수 있게 된다는 효과가 있다. As described above, according to the plate heat exchanger in which the channel of the present invention is formed, the working fluid proceeds first along the channel and then rises along the upper flow path, thereby obtaining a constant flow rate regardless of the distance from the inlet, thereby preventing fouling. It has the effect of being able to.

또한 판의 전체에 작동유체가 흐르게 되므로 접촉면적이 넓어져 열효율이 높아지고 이에 따라 조수기에 사용시 대량의 담수를 용이하게 얻을 수 있다는 효과가 있다.In addition, since the working fluid flows through the entire plate, the contact area becomes wider, and thus the thermal efficiency is increased. Accordingly, when used in the water heater, a large amount of fresh water can be easily obtained.

상술한 바와 같이 본 발명은 판 전체의 유속이 일정하도록 하여 파울링을 방지하고 열효율이 높은 판형 열교환기를 제공하는 것을 주목적으로 함을 알 수 있다. 이를 위해 본 발명에서는 판의 하측에 판의 표면에 형성되어 유로가 되는 홈을 가로질러 가로로 길게 채널을 형성하고 있다. 이는 상기 유입구에서 유입된 유체가 배출구를 통해 배출되기 위해 판을 가로질러 상승하기 전 먼저 채널을 따라 이동하여 고르게 분배된 후 상측으로 이동하게 되어 압력차에 의한 유속의 차이가 발생하는 것을 방지하기 위함이다.As described above, it can be seen that the present invention primarily aims to provide a plate heat exchanger having high thermal efficiency by preventing fouling by maintaining a constant flow rate of the entire plate. To this end, in the present invention, a channel is formed to extend horizontally across the groove formed on the surface of the plate under the plate to become a flow path. This is to prevent the flow rate difference caused by the pressure difference because the fluid flowing in the inlet is moved along the channel first and then evenly distributed before moving up the plate to be discharged through the outlet. to be.

종래의 경우에는 유체가 판의 표면을 가로질러 이동하면서 세브론 각이 형성된 홈에 의해 난류를 일으키며 통과하게 되므로 전열면에 고른 유동특성을 얻을 수 없어 위치에 따라 유속이 달라져 유속이 느린 부분에 이물질이 쌓이는 된다.In the conventional case, the fluid moves across the surface of the plate, causing turbulence through the grooves formed with the Severon angle, so that even flow characteristics cannot be obtained on the heat transfer surface. This builds up.

따라서 본 발명은 이러한 현상을 방지하기 위해 채널을 따라 유체가 가로로 이동한 후 상측으로 이동하면서 열에 의해 증발이 이루어지므로 전열면 전체에서 유체가 상승하면서 증발하게 되므로 전체적으로 고른 유속을 유지하게 되어 파울링을 방지할 수 있게 된다.Therefore, in order to prevent such a phenomenon, the fluid moves horizontally along the channel and then moves upward, so that the evaporation is performed by heat. Can be prevented.

이하에서는 첨부된 도면을 참조로하여 본 발명의 일실시예에 따른 채널이 형성된 판형 열교환기에 대해 상세히 설명하기로 한다.Hereinafter, with reference to the accompanying drawings will be described in detail a plate-shaped heat exchanger formed with a channel according to an embodiment of the present invention.

도3은 본 발명의 일실시예에 따른 채널이 형성된 판형 열교환기의 판에 있어서 하측에 채널을 형성한 것을 표시한 도면이다. 도시된 바와 같이 본 발명의 열교환기는 판의 양측에 네개의 관통공이 형성되고 표면에 세브론 각(갈매기 모양)을 이루는 다수개의 홈이 연속적으로 배치되어 있다. 상기와 같이 판의 표면에 세브론 각을 이루는 다수개의 홈이 연속으로 배치하는 것은 당업자에게는 주지관용의 기술이므로 상세한 설명은 생략하기로 한다.Figure 3 is a view showing that the channel is formed on the lower side of the plate of the plate heat exchanger is formed according to an embodiment of the present invention. As shown, the heat exchanger of the present invention has four through-holes formed at both sides of the plate, and a plurality of grooves having a Severon angle (gull-shaped) are continuously arranged on the surface. As described above, since a plurality of grooves constituting the Severon angle are continuously disposed on the surface of the plate as described above, the description is omitted for the person skilled in the art.

본 발명에서는 상기 세브론 각을 이루는 홈을 가로 질러 채널을 형성하게 된다. 상기 채널은 판의 하측에 위치하게 되며 상기 홈의 하측 말단에서 약간 상측에 형성된다. 이에 따라 본원발명의 판형 열교환기는 작동유체가 유입되면 종래의 판형열교환기에서와는 달리 먼저 채널을 따라 작동유체가 가로로 흐르게 된다. 상기와 같이 채널을 따라 가로로 흘러가는 작동유체는 이후 채널에 작동유체가 차게 되면 유로를 따라 상측으로 이동하게 된다. 따라서 판의 전 표면을 따라 동시에 작동유체가 상승하게 되므로 표면 전체의 유속이 일정하게 되어 일부 유속이 느려져 이물질이나 염분등이 쌓여 발생하는 파울링을 방지할 수 있다.In the present invention, a channel is formed across the groove forming the Severon angle. The channel is located below the plate and is formed slightly above the lower end of the groove. Accordingly, in the plate heat exchanger of the present invention, when the working fluid is introduced, the working fluid flows horizontally along the channel first, unlike in the conventional plate heat exchanger. As described above, the working fluid flowing horizontally along the channel moves upward along the flow path when the working fluid fills the channel. Therefore, since the working fluid rises along the entire surface of the plate at the same time, the flow rate of the entire surface becomes constant, and some flow rates are slowed, thereby preventing fouling caused by accumulation of foreign substances or salts.

또한 본 발명의 판형 열교환기는 표면 전체에 균일하게 작동유체가 이동하게 되므로 열 교환이 이루어지는 면적이 넓어지므로 효율이 높아지게 된다. 따라서 본 발명의 판형 열교환기를 도3에 도시된 조수기에 사용하는 경우 엔진을 냉각시킨 냉각수의 열을 해수로 전달하여 다량의 담수를 용이하게 얻을 수 있게 된다.In addition, the plate heat exchanger of the present invention moves the working fluid uniformly throughout the surface, so that the heat exchange area is widened, the efficiency is increased. Therefore, when the plate heat exchanger of the present invention is used in the water tank shown in FIG. 3, a large amount of fresh water can be easily obtained by transferring heat of cooling water from which the engine is cooled to seawater.

도1 : 판형 열교환기의 간략한 구조와 유체의 흐름을 나타낸 도1: A simplified structure and fluid flow of a plate heat exchanger

도2 : 조수기의 구조를 나타낸 도2 is a diagram showing the structure of the water tank

도3 : 종래의 열교환기의 판과 본 발명의 실시예에 따른 판의 구조를 나타낸 사진.3 is a photograph showing the structure of a plate of a conventional heat exchanger and a plate according to an embodiment of the present invention.

Claims (1)

표면에 세브론 각을 이루는 홈이 형성되어 있는 다수개의 판으로 이루어진 판형 열교환기에 있어서,In the plate heat exchanger consisting of a plurality of plates having a groove forming a Sevron angle on the surface, 상기 판의 하측에 상기 홈을 가로질러 가로로 길게 형성되는 채널;이 형성되는 것을 특징으로 하는 채널이 형성된 판형 열교환기.And a channel extending horizontally across the groove on the lower side of the plate.
KR1020070088566A 2007-08-31 2007-08-31 Plate type heat exchanger with channel for fresh water generator KR100898997B1 (en)

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KR101151758B1 (en) * 2009-04-10 2012-06-15 한라공조주식회사 Plate Type Heat Exchanger
KR101146105B1 (en) * 2011-10-25 2012-05-16 주식회사 엘에치이 Heat plate for heat exchanger
CN108662939A (en) * 2018-06-07 2018-10-16 上海加冷松芝汽车空调股份有限公司 A kind of corrugated plating and heat exchanger

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