KR20030011115A - Multi-thread type heat exchanger - Google Patents

Multi-thread type heat exchanger Download PDF

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Publication number
KR20030011115A
KR20030011115A KR1020030001250A KR20030001250A KR20030011115A KR 20030011115 A KR20030011115 A KR 20030011115A KR 1020030001250 A KR1020030001250 A KR 1020030001250A KR 20030001250 A KR20030001250 A KR 20030001250A KR 20030011115 A KR20030011115 A KR 20030011115A
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KR
South Korea
Prior art keywords
heat exchanger
temperature medium
high temperature
medium
outlet
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KR1020030001250A
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Korean (ko)
Inventor
정문화
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정문화
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Priority to KR1020030001250A priority Critical patent/KR20030011115A/en
Publication of KR20030011115A publication Critical patent/KR20030011115A/en
Priority to PCT/KR2004/000011 priority patent/WO2004063655A1/en

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
    • F24H1/38—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water contained in separate elements, e.g. radiator-type element
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
    • F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
    • F24H1/48—Water heaters for central heating incorporating heaters for domestic water
    • F24H1/52—Water heaters for central heating incorporating heaters for domestic water incorporating heat exchangers for domestic water
    • 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
    • F28D7/00—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall
    • F28D7/02—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled
    • F28D7/022—Heat-exchange apparatus having stationary tubular conduit assemblies for both heat-exchange media, the media being in contact with different sides of a conduit wall the conduits being helically coiled the conduits of two or more media in heat-exchange relationship being helically coiled, the coils having a cylindrical configuration
    • 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
    • F28D9/04—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 spirally-wound plates or laminae
    • 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
    • F28F3/02—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations
    • F28F3/04—Elements or assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with recesses, with corrugations the means being integral with the element

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

Abstract

PURPOSE: A multiple spiral type heat exchanger is provided to increase heat efficiency and to be easily cleaned. CONSTITUTION: A heat exchanger comprises a heat exchange part(100) formed by a spiral type first medium path(20) and a second medium path(30) as a plurality of spiral inside plates are laid; a high temperature medium port part(200) having a high temperature medium inlet(21) formed on the first medium path and a high temperature medium outlet(21') formed thereunder; and a low temperature medium port part(300) having a low temperature medium inlet(31) formed under the second medium path and a low temperature medium outlet(31') formed on.

Description

다중 나사식 열교환기{Multi-thread type heat exchanger}Multi-thread type heat exchanger

본 발명은 다중 나사식 열교환기에 관한 것으로, 더욱 상세하게는 외,내주연에 결합턱이 형성된 나선형(螺旋形) 내판을 다단으로 용착 적층시킴으로써, 전열면적이 최대화되어 매체의 열흡수율을 증대시키고, 다중매체의 동시 유입이 가능하여 열교환 작업을 효율적으로 수행할 수 있을 뿐만 아니라, 매체통로가 나사식으로 형성되어 열교환기 청소작업시 사이클론 작용에 의해 중앙부로 슬러지가 모이므로 슬러지 배출 작업이 용이하여 사용과 취급이 편리한 열교환기에 관한 것이다.The present invention relates to a multi-screw heat exchanger, and more particularly, by depositing and stacking a spiral inner plate having a joining jaw formed in the outer and inner circumferences in multiple stages, the heat transfer area is maximized to increase the heat absorption rate of the medium, Simultaneous inflow of multiple media enables efficient heat exchange, as well as media passages formed by screw type, so sludge is collected in the center due to cyclone action during heat exchanger cleaning. And a heat exchanger that is easy to handle.

일반적으로 열교환기는 온도가 높은 유체로부터 전열벽(傳熱壁)을 통해서 온도가 낮은 유체에 열을 전달하는 장치로서, 열교환기의 기본적인 종류로는 튜브형 열교환기와 판형 열교환기로 나뉜다.In general, a heat exchanger is a device that transfers heat from a high temperature fluid to a low temperature fluid through a heat transfer wall, and a basic type of heat exchanger is classified into a tubular heat exchanger and a plate heat exchanger.

튜브형 열교환기는 도 1에 도시한 바와 같이 한 개의 튜브를 필요한 전열면적만큼 다량으로 배열하기 때문에 열교환기의 크기가 매우 대형화되어 무게가 무겁고, 대부분의 유체 특히 폐수에는 부유입자 및 이온물질이 다량으로 존재하여 유체가 열전달면을 통과하는 과정에서 내벽에 침적된다. 뿐만 아니라 석출 및 부식 등에 의해 화울링(fouling) 또는 슬러지(sludge)와 같은 이물질이 발생하여 관로의손실수두가 증가하게 되며, 열효율적인 측면에서는 튜브사이즈가 작을수록 전열면적은 커지는 원리이나 튜브 면적의 45~50%를 차지할 때 최대의 전열효과를 가져오므로 그 효율성이 미비하다.As the tube type heat exchanger arranges one tube in a large amount as much as the required heat transfer area, as shown in FIG. 1, the size of the heat exchanger is very large and heavy, and there are large amounts of suspended particles and ionic substances in most fluids, especially waste water. The fluid is deposited on the inner wall in the process of passing through the heat transfer surface. In addition, foreign matter such as fouling or sludge occurs due to precipitation and corrosion, resulting in an increase in the head loss of the pipe.In terms of thermal efficiency, the smaller the tube size, the larger the heat transfer area or the principle of tube area. When it accounts for 45 to 50%, the maximum heat transfer effect is obtained, so the efficiency is insufficient.

따라서 열교환기의 크기를 줄이기 위해 판형 열교환기가 개발되어 보급되고 있으나, 종래의 판형열교환기는 통상적으로 납땜 또는 은납을 이용하는 경납(硬臘)땜으로 저융점의 합금을 녹여서 접합시키는 브레이징 시트(Brazing Sheet)를 사용함으로써 원재료비가 고가로 형성되고, 열교환기 상, 하면에 온수입출구가 다수개 형성됨으로써 제작이 용이하지 못하여 대다수의 제조업체에서는 생산을 꺼리며 상술한 바와 같이 온수 또는 난방수 입출구의 다수개 형성으로 배관시공이 복잡한 문제가 있었다. 또한 상기 다수의 온수 또는 난방수 입출구에 합성수지 또는 금속재로 관이음되어 대기와 접촉하여 열효율이 떨어지고, 장기간 사용할 경우 열교환기 내부에 발생한 슬러지(sludge)로 한달에 최소한 1~2번은 열교환기를 분해한 후 청소를 해야하므로 슬러지 제거작업이 용이하지 못하여 열교환기의 열효율이 격감하는 등의 폐단이 발생하고 있는 실정이다.Therefore, in order to reduce the size of the heat exchanger, a plate heat exchanger has been developed and spread, but a conventional plate heat exchanger is a brazing sheet for melting and joining a low melting point alloy by brazing using brazing or silver solder. By using the raw material cost is formed at high cost, the production of a large number of hot water inlet and outlet on the heat exchanger is not easy to manufacture because many manufacturers are reluctant to produce a large number of hot water or heating water inlet and outlet as described above There was a complicated problem with piping construction. In addition, a plurality of hot water or heating water inlet and outlet is piped with synthetic resin or metal material, and the thermal efficiency is reduced by contacting the atmosphere, and if used for a long time, at least 1 to 2 times a month after disassembling the heat exchanger with sludge generated inside the heat exchanger. Since the sludge is not easy to clean, the thermal efficiency of the heat exchanger is reduced.

본 발명의 목적은 종래의 이와같은 문제점을 해소하고자 한 데 있는 것으로, 외,내주연에 결합턱이 형성된 나선형(螺旋形) 내판을 다단으로 용착시켜 다수개의 매체통로를 형성시킴으로써, 다중매체를 동시에 사용할 수 있을 뿐만 아니라, 다중열교환으로 전열면적이 최대화되어 열효율을 증대시키고, 슬러지 제거작업시 나사형 내판으로 인한 싸이클론 작용으로 슬러지가 중심하부에 집결되어 청소가 용이하며, 그로 인해 제품의 수명을 연장하고 제품의 성능을 향상시키는 다중 나사식 열교환기를 제공코자 하는데 그 목적이 있다.An object of the present invention is to solve such a problem in the prior art, by forming a plurality of media passages by welding a spiral inner plate formed in the outer periphery, the coupling jaw formed in the inner periphery in a multi-stage, multiple media at the same time Not only can it be used, but the heat transfer area is maximized by multiple heat exchange to increase thermal efficiency, and it is easy to clean as the sludge is collected at the bottom of the center due to the cyclone action due to the screw type inner plate during sludge removal. The objective is to provide a multi-screw heat exchanger that extends and improves product performance.

도 1는 종래의 열교환기를 도시한 상태도1 is a state diagram showing a conventional heat exchanger

도 2는 본 발명의 전체를 도시한 상태도Figure 2 is a state diagram showing the whole of the present invention

도 3a 내지 3c는 본 발명에서 내판의 장착상태를 도시한 상태도 및 단면도Figure 3a to 3c is a state diagram and a cross-sectional view showing a mounting state of the inner plate in the present invention

도 4는 본 발명에서 매체통로의 흐름을 도시한 상태도Figure 4 is a state diagram showing the flow of the media passage in the present invention

도 5는 본 발명에서 다수개의 매체통로가 형성된 상태를 도시한 단면도5 is a cross-sectional view showing a state in which a plurality of media passages are formed in the present invention.

도 6은 본 발명의 다른 실시예를 도시한 실시예도Figure 6 is an embodiment showing another embodiment of the present invention

도 7은 본 발명의 다른 실시예를 도시한 실시예도Figure 7 is an embodiment showing another embodiment of the present invention

< 도면의 주요부분에 대한 부호의 설명 ><Description of Symbols for Major Parts of Drawings>

10: 내판 11: 결합턱 12: 절단면10: inner plate 11: coupling jaw 12: cutting surface

13: 요철면 20: 제 1 매체통로 21: 고온매체 유입구13: uneven surface 20: first medium passage 21: high temperature medium inlet

21': 고온매체 유출구 30: 제 2 매체통로 31: 저온매체 유입구21 ': high temperature medium outlet 30: second medium passage 31: low temperature medium inlet

31': 저온매체 유출구 40,40': 매체통로 50: 외부 하우징31 ': low temperature medium outlet 40,40': medium passage 50: outer housing

50': 내판통 60: 충진재 70: 송풍팬50 ': inner cylinder 60: filler 70: blowing fan

80: 버너 90: 연통 100: 열교환부80: burner 90: communication 100: heat exchanger

200: 고온매체 입출부 300: 저온매체 입출부 가: 열교환기200: high temperature medium entry and exit 300: low temperature medium entry and exit A: heat exchanger

나: 환기장치 다: 보일러I: Ventilation C: Boiler

이하 첨부된 도면을 참조하여 본 발명에 관하여 상세하게 설명하면 다음과 같다.Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

통상의 열교환기에 있어서, 본 발명은 도 2에 도시한 바와 같이 다수개의 나선형 내판(10)이 다단으로 상향 경사지게 적층되어 나사식 제 1매체통로(20)와 제 2매체통로(30)로 형성되어 있는 열교환부(100)와; 상기 제 1매체통로(20)의 상측으로 고온매체 유입구(21)가 형성되어 있고, 하측으로 고온매체 유출구(21')가 형성되어 있는 고온매체 입출부(200)와; 상기 제 2매체통로(30)의 하측으로 저온매체 유입구(31)가 형성되어 있고, 상측으로는 저온매체 유출구(31')가 형성되어 있는 저온매체 입출부(300);의 조합으로 형성됨을 특징으로 하는 것이다.In the conventional heat exchanger, as shown in FIG. 2, a plurality of spiral inner plates 10 are stacked to be inclined upward in multiple stages and are formed of a screw-type first medium passage 20 and a second medium passage 30. A heat exchanger 100; A high temperature medium inlet / outlet unit 200 having a high temperature medium inlet 21 formed above the first medium passage 20 and a high temperature medium outlet 21 'formed below; The low temperature medium inlet 31 is formed at the lower side of the second medium passage 30, and the low temperature medium inlet and outlet 300 having the low temperature medium outlet 31 'is formed at the upper side thereof. It is to be done.

상기에서, 내판(10)은 도 3a 내지 3c에 도시한 바와 같이 외,내주연으로 소정길이의 결합턱(11)이 형성되어 있고, 소정너비로 절단된 일측 절단면(12)은 상향 경사지게 형성되어 있으며, 외표면에는 소정간격으로 다수개의 요철면(13)이 형성되어져 있다.In the above, the inner plate 10, as shown in Figures 3a to 3c is formed with a coupling jaw 11 of a predetermined length by the outer, inner circumference, the one side cutting surface 12 cut to a predetermined width is formed to be inclined upwardly The outer surface is provided with a plurality of uneven surfaces 13 at predetermined intervals.

상기에서, 열교환부(100)는 도 5에 도시한 바와 같이 다수개의 매체통로(40)(40')로 형성되어져 있다.In the above, the heat exchange part 100 is formed of a plurality of medium passages 40, 40 'as shown in FIG.

상기에서, 열교환부(100)의 중심부에는 도 3c에 도시한 바와 같이 상하부가 밀폐된 내판통(50')이 장착되어 있고, 외주연에는 외부 하우징(50)이 장착되어 있으며, 상기 외부 하우징(50)과 열교환부(100)의 외주연 사이에는 충진재(60)가 형성되어져 있다.In the above, as shown in FIG. 3C, an inner plate cylinder 50 ′ whose upper and lower parts are sealed is mounted at the center of the heat exchange part 100, and an outer housing 50 is mounted on an outer circumference thereof. Filler 60 is formed between the outer periphery of 50 and the heat exchanger 100.

상기에서, 고온매체 유입구(21)측에는 도 6에 도시한 바와 같이 통상의 송풍팬(70)을 장착하여 환기장치(나)로 사용할 수도 있다.In the above, a high temperature medium inlet 21 side as shown in Figure 6 may be equipped with a conventional blowing fan 70 may be used as a ventilator (b).

상기에서, 고온매체 유입구(21)측에는 도 7에 도시한 바와 같이 통상의 버너(80)를 장착하고, 고온매체 유출구(21')측에는 연통(90)을 장착하여 보일러(다)로 사용할 수도 있다.In the above description, a normal burner 80 may be mounted on the high temperature medium inlet 21 side and a communication 90 may be mounted on the high temperature medium outlet 21 'side to be used as a boiler. .

이와 같이된 본 발명은 먼저 도 3a에서와 같이 나선형 내판(10)의 상향 절단면(12)에 다른 내판(10)의 절단면(12)을 적층 접합하여 용착하고, 상기 내판(10)의 결합턱(11) 부분은 다른 내판(10)의 하측 외주연과 용착한다. 각 내판(10)의 용착시 내판(10)의 외표면에 형성되어 있는 요철면(13)에 의해 각 내판(10)의 결합 간격이 유지되면서 용착된다.In the present invention as described above, as shown in FIG. 3A, the cut surface 12 of the other inner plate 10 is laminated and welded to the upwardly cut surface 12 of the spiral inner plate 10, and the coupling step of the inner plate 10 ( 11) The part is welded with the lower outer periphery of the other inner plate (10). When the inner plate 10 is welded by the uneven surface 13 formed on the outer surface of the inner plate 10 is welded while maintaining the coupling interval of each inner plate 10.

상기 과정을 반복하여 도 3c에서와 같이 다단으로 상향 경사지는 나사식 제 1 매체통로(20)와 제 2 매체통로(30)를 형성하고, 상기 제 1 매체통로(20)와 제 2 매체통로(30)가 형성된 열교환부(100)의 중심부에는 내판통(50')을 장착하며, 외주연에는 단열을 위한 충진재(60)와 전체를 지지하는 외부 하우징(50)을 장착한다.By repeating the above process, as shown in FIG. 3c, the first and second media passages 20 and 30 are inclined upward in multiple stages, and the first media passage 20 and the second media passage ( 30 is formed in the center of the heat exchange unit 100 is equipped with an inner plate cylinder 50 ', the outer periphery is equipped with a filler 60 for thermal insulation and an outer housing 50 for supporting the whole.

한편 상기 제 1 매체통로(20) 상측으로는 고온매체 유입구(21)를 형성하고,하측으로는 고온매체 유출구(21')를 형성한다. 그리고 제 2 매체통로(30)의 하측으로는 저온매체 유입구(31)를 형성하고, 상측으로는 저온매체 유출구(31')를 형성하여 도 2에 도시한 바와 같은 본 발명이 구현하고자 하는 다중 나사식 열교환기(가)로 완성된다.Meanwhile, a high temperature medium inlet 21 is formed above the first medium passage 20, and a high temperature medium outlet 21 ′ is formed below the first medium passage 20. The low temperature medium inlet 31 is formed at the lower side of the second medium passage 30, and the low temperature medium outlet 31 ′ is formed at the upper side of the second medium passage 30 to implement the multi-screw according to the present invention as shown in FIG. 2. The type heat exchanger is completed.

본 발명이 구현하고자 하는 열교환기(가)의 작동과정을 좀 더 상세히 설명하면,Referring to the operation of the heat exchanger (a) to be implemented in more detail the present invention,

도 2 또는 도 4에 도시한 바와 같이 먼저 상측 고온매체 유입구(21)를 통해 고온의 폐수 또는 연소가스 등 고온 열에너지를 가진 고온매체를 제 1 매체통로(20)로 유입시키는데, 유입된 고온매체는 제 2 매체통로(30)와 연결된 각 내판(10)으로 열을 전달하면서 제 1 매체통로(20) 하측의 고온매체 유출구(21')로 유출되는 과정을 반복하게 된다.As shown in FIG. 2 or 4, first, a high temperature medium having high temperature thermal energy, such as high temperature wastewater or combustion gas, is introduced into the first medium passage 20 through the upper high temperature medium inlet 21. While transferring heat to each inner plate 10 connected to the second medium passage 30, the process of flowing out to the high temperature medium outlet 21 ′ under the first medium passage 20 is repeated.

상기 제 1 매체통로(20)로 고온매체가 유입되고 있는 상황에서 하측 저온매체 유입구(31)로 저온매체를 유입시키면, 유입된 저온매체는 제 2 매체통로(30)를 통과하면서 제 1 매체통로(20)를 순환하고 있는 고온매체의 열을 전달받아 고온매체로 열교환되고, 열교환된 저온매체는 하측의 저온매체 유출구(31')로 유출된다.When the low temperature medium is introduced into the lower low temperature medium inlet 31 in a situation where the high temperature medium is introduced into the first medium passage 20, the introduced low temperature medium passes through the second medium passage 30 and the first medium passage. The heat of the high temperature medium circulating 20 is transferred to the high temperature medium, and the heat exchanged low temperature medium flows out to the low temperature medium outlet 31 ′ of the lower side.

상기에서 저온매체가 제 2 매체통로(30)를 통과할 경우 도 3a 내지 도 3c에서와 같이 각 내판(10)의 외표면에 형성되어 있는 요철면(13)에 의해 매체 흐름이 한쪽으로 편중되지 않고 원활하게 유도되어 매체와 제 1,2 매체통로(20)(30) 사이에 발생하는 저항을 감소시키면서 저온매체에서 고온매체로 열교환된다. 그리고 상기 열교환된 저온매체는 저온매체 유출구(31')를 통해 지속적으로 유출되는 것이다.When the low temperature medium passes through the second medium passage 30, the media flow is not biased to one side by the uneven surface 13 formed on the outer surface of each inner plate 10 as shown in FIGS. 3A to 3C. It is smoothly induced and heat exchanged from the low temperature medium to the high temperature medium while reducing the resistance generated between the medium and the first and second medium passages 20 and 30. The heat exchanged low temperature medium is continuously discharged through the low temperature medium outlet 31 ′.

그리고 상기 제 1,2 매체통로(20)(30)를 통해 고온매체와 저온매체가 통과하는 과정에서 고온매체에 포함되어 있는 슬러지는 제 1 매체통로(20)의 내벽에 적층되거나 흡착되는데, 제 1 매체통로(20)가 나사식으로 형성되어 있어 적층되는 슬러지들은 사이클론 효과에 의해 중심 하부로 모이게 된다. 따라서 고온매체 유입구(21)로 고온매체가 유입되고 있는 상태에서 드레인 밸브를 열면 중심 하부에 적층되어 있는 슬러지들이 드레인관을 통해 외부로 유출된다.And the sludge contained in the high temperature medium in the process of passing the high temperature medium and the low temperature medium through the first and second medium passages 20 and 30 is laminated or adsorbed on the inner wall of the first medium passage 20. 1 The media passage 20 is formed in a threaded manner so that the sludges stacked are collected under the center by the cyclone effect. Therefore, when the drain valve is opened in the state where the hot medium is introduced into the hot medium inlet 21, the sludges stacked below the center flow out through the drain pipe.

이와같이 본 발명은 기존의 튜브식 열교환기나 판형 열교환기에 비해 전열면적이 넓게 형성되는데, 도 1에서와 같이 기존의 튜브식 열교환기의 튜브수 = n, 원통단면적 = S, 튜브면적 = 0.45~0.5 S 라고 한다면, S = 3.14 D2/4 이므로 튜브의 수(n)는 S/2 를 튜브1개 단면적으로 나눈 n = D2/2d2이다.As described above, the present invention has a wider heat transfer area than the conventional tube type heat exchanger or plate type heat exchanger, and as shown in FIG. , the number (n) of the tube, so S = 3.14 D 2/4 is n = D 2 / 2d 2 divided by the S / 2 to one tube cross sectional area.

따라서 총전열면적은 튜브의 원주와 튜브수와 튜브의 길이와의 곱이므로 3.14 × d × n × h 가 되어 총전열면적(T) =가 된다.Therefore, the total heat transfer area is the product of the circumference of the tube, the number of tubes and the length of the tube, so 3.14 × d × n × h, so the total heat transfer area (T) = Becomes

그리고 도 4에서와 같이 본 발명에서 내판의 폭 = Di-Do, 내판의 길이 = h/sinØ, 내판의 수(n) = 3.14 × Do/d 라고 한다면, 총전열면적은 내판의 폭과 내판의 길이와 내판의 수와의 곱에 내판이 양면이므로 (Do-Di)×h/sinØ×n×2 가 된다.And in the present invention, as shown in Figure 4, if the width of the inner plate = Di-Do, the length of the inner plate = h / sin Ø, the number of inner plates (n) = 3.14 × Do / d, the total heat transfer area is the width of the inner plate and The product of the length and the number of inner plates is (Do-Di) × h / sinØ × n × 2 since the inner plates are double-sided.

즉, 총전열면적(S) =가 된다.That is, the total heat transfer area (S) = Becomes

여기서 D = Do 라는 가정하에 상기 식을 비교해 보면 S/T =로 도출 되는데, D = Do = 750 mm, Di = 300 mm, Ø = 30 일 때 기존 튜브식 열교환기의 총전열면적에 비해 본 발명의 총전열면적이 약 5배 정도 증대된 것을 알 수 있다.Comparing the above equation under the assumption that D = Do, S / T = It can be seen that, when D = Do = 750 mm, Di = 300 mm, Ø = 30 it can be seen that the total heat transfer area of the present invention is increased by about 5 times compared to the total heat transfer area of the conventional tube type heat exchanger.

그리고 본 발명은 기존의 단일 매체통로를 다단으로 형성시킴으로써, 다양한 매체를 동시에 열교환시킬 수 있어 열교환 작업을 효율적으로 수행할 수 있다. 뿐만 아니라 제 1 매체통로(20)의 면적이 넓고 나사식으로 형성되어 있어 기존 튜브식 열교환기나 판형 열교환기에 비해 슬러지를 용이하게 제거할 수 있다.In addition, the present invention by forming the existing single media passage in multiple stages, it is possible to heat exchange a variety of media at the same time can perform the heat exchange operation efficiently. In addition, since the area of the first medium passage 20 is wide and is formed in a screw type, sludge can be easily removed as compared with the conventional tube type heat exchanger or plate type heat exchanger.

본 발명의 다른 실시예로 도 6에 도시한 바와 같이 열교환기(가) 상측의 고온매체 유입구(21)측으로 송풍팬(70)을 장착하면 환기장치(나)로도 사용할 수 있게 되는데, 상기 송풍팬(70)에 의해 고온매체 유입구(21)로 온풍이 유입되고, 유입된 온풍은 제 1 매체통로(20) 하측의 고온매체 유출구(21')를 통해 유출되는 과정을 반복하게 된다.As another embodiment of the present invention, as shown in FIG. 6, when the blower fan 70 is mounted toward the high temperature medium inlet 21 of the heat exchanger, the blower fan can be used as a ventilator (b). The hot air flows into the high temperature medium inlet 21 by the 70, and the introduced hot air is repeated through the high temperature medium outlet 21 ′ under the first medium passage 20.

상기 과정이 진행되는 동안 제 2 매체통로(30) 하측의 저온매체 유입구(31)를 통해 냉풍이 유입되는데, 유입된 냉풍은 제 2 매체통로(30)를 거치면서 열교환된 후, 저온매체 유출구(31')를 통해 유출된다, 유출된 저온매체는 온풍으로 변환되어 덕트를 통해 실내로 유입된다.During the process, the cold air flows in through the low temperature medium inlet 31 under the second medium passage 30. The cold air flows through the second medium passage 30, and then heat exchanges through the low temperature medium outlet ( 31 '), the spilled cold medium is converted into warm air and introduced into the room through the duct.

본 발명의 또 다른 실시예로 도 7에 도시한 바와 같이 열교환기(가) 상측의 고온 매체 유입구(21)측으로 버너(80)를 장착하고, 고온매체 유출구(21')측으로는 연통(90)을 장착하여 보일러(다)로 사용할 수 있게 되는데, 상기 버너(80)에 의해 데워진 고온의 공기는 제 1 매체통로(20)로 유입되어 연통(90)으로 유출되는 과정을 반복하게 된다.As another embodiment of the present invention, as shown in FIG. 7, a burner 80 is mounted toward the hot medium inlet 21 at the upper side of the heat exchanger A, and the communication 90 is connected to the hot medium outlet 21 ′. It can be used as a boiler (C), the hot air warmed by the burner (80) is repeated to flow into the first medium passage 20 and outflow into the communication (90).

상기 과정이 진행되는 동안 제 2 매체통로(30)의 저온매체 유입구(31)에는 냉수가 유입되고, 유입된 냉수는 제 2 매체통로(30)를 통과하면서 온수로 열교환되어 저온매체 유출구(31')로 유출되며, 유출된 온수는 급탕이나 바닥배관으로 연결되어 난방이 가능하게 된다. 또한 매체통로를 3개로 나누어 연소가스, 난방온수, 급탕온수용으로 사용하면 기존 보일러의 급탕시에 비해 연료 절감효과가 증대된다.During the process, cold water is introduced into the low temperature medium inlet 31 of the second medium passage 30, and the cold water introduced therein is heat-exchanged with hot water while passing through the second medium passage 30, thereby reducing the low temperature medium outlet 31 ′. ), And the spilled hot water is heated by hot water supply or floor pipe. In addition, if the media passage is divided into three and used for combustion gas, heating hot water, and hot water supply, the fuel saving effect is increased compared with the conventional hot water supply of the boiler.

이와 같이 된 본 발명은 외,내주연으로 결합턱이 형성되고 외표면에는 요철면이 형성되어 있는 다수개의 나선형 내판을 상향 경사지게 다단 용착함으로써, 유로의 흐름을 안내하여 저항을 감소시킬 뿐만 아니라 다중열교환으로 전열면적이 최대화되어 열효율을 증대시키고, 내판 절단면이 나사식으로 다단 적층되어 매체통로가 다수개 형성됨으로써 다중매체를 동시에 사용할 수 있어 그 활용폭이 확대되며, 슬러지 제거작업이 용이하여 제품 수명이 연장되고 성능이 향상된데 그 효과가 있다. 그리고 본 발명은 폐수열교환기나, 보일러, 환기장치 등의 각종 열교환 시스템에 장착할 수 있어 그 활용폭이 넓고 다대하며 유도되는 효과도 매우 다양하다.In the present invention as described above, by joining a plurality of spiral inner plates are formed in the outer periphery, the coupling jaw is formed on the outer surface and the irregular surface is inclined upward, to guide the flow of the flow path to reduce the resistance as well as multiple heat exchange The heat transfer area is maximized to increase the thermal efficiency, and the inner plate cutting surface is multi-stacked by screw type to form a plurality of media passages, so that multiple media can be used at the same time. Performance is improved. In addition, the present invention can be installed in various heat exchange systems such as a wastewater heat exchanger, a boiler, a ventilator, and the use thereof is wide, large, and induced.

Claims (6)

통상의 열교환기에 있어서, 다수개의 나선형 내판(10)이 다단으로 상향 적층되어 나사식 제 1매체통로(20)와 제 2매체통로(30)로 형성되어 있는 열교환부(100)와; 상기 제 1매체통로(20)의 상측으로 고온매체 유입구(21)가 형성되어 있고, 하측으로 고온매체 유출구(21')가 형성되어 있는 고온매체 입출부(200)와; 상기 제 2매체통로(30)의 하측으로 저온매체 유입구(31)가 형성되어 있고, 상측으로는 저온매체 유출구(31')가 형성되어 있는 저온매체 입출부(300);의 조합으로 형성됨을 특징으로 하는 다중 나사식 열교환기.In a typical heat exchanger, a plurality of spiral inner plates (10) are stacked in multiple stages upwardly and formed of a screw-type first medium passage (20) and a second medium passage (30); A high temperature medium inlet / outlet unit 200 having a high temperature medium inlet 21 formed above the first medium passage 20 and a high temperature medium outlet 21 'formed below; The low temperature medium inlet 31 is formed at the lower side of the second medium passage 30, and the low temperature medium inlet and outlet 300 having the low temperature medium outlet 31 'is formed at the upper side thereof. Screw heat exchanger. 제 1항에 있어서, 내판(10)은 외,내주연으로 소정길이의 결합턱(11)이 형성되어 있고, 소정너비로 절단된 일측 절단면(12)은 상향 경사지게 형성되어 있으며, 외표면에는 소정간격으로 다수개의 요철면(13)이 형성되어져 있음을 특징으로 하는 다중 나사식 열교환기.According to claim 1, the inner plate 10 is formed with a coupling jaw 11 of a predetermined length by the outer, inner circumference, one side cut surface 12 cut to a predetermined width is formed to be inclined upward, the outer surface is predetermined Multiple screw heat exchanger, characterized in that a plurality of uneven surface 13 is formed at intervals. 제 1항에 있어서, 열교환부(100)는 다수개의 매체통로(40)(40')로 형성되어져 있음을 특징으로 하는 다중 나사식 열교환기.The multi-screw heat exchanger according to claim 1, wherein the heat exchange part (100) is formed of a plurality of medium passages (40, 40 '). 제 1항에 있어서, 열교환부(100)의 중심부에는 상하부가 밀폐된 내판통(50')이 장착되어 있고, 외주연에는 외부 하우징(50)이 장착되어 있으며, 상기 외부 하우징(50)과 열교환부(100)의 외주연 사이에는 충진재(60)가 형성되어져 있음을 특징으로 하는 다중 나사식 열교환기.According to claim 1, wherein the upper and lower parts of the inner plate cylinder 50 'is sealed at the center of the heat exchange part 100, the outer housing 50 is mounted on the outer periphery, heat exchange with the outer housing 50 Multi-threaded heat exchanger, characterized in that the filler material 60 is formed between the outer periphery of the part (100). 제 1항에 있어서, 고온매체 유입구(21)측에 통상의 송풍팬(70)이 장착되어 환기장치(나)로 사용됨을 특징으로 하는 나사식 다중 열교환기.2. The screw type multiple heat exchanger according to claim 1, wherein a general blowing fan (70) is mounted on the side of the high temperature medium inlet (21) and used as a ventilator (b). 제 1항에 있어서, 고온매체 유입구(21)측에 통상의 버너(80)가 장착되고, 고온매체 유출구(21')측에는 연통(90)이 장착되어 보일러(다)로 사용됨을 특징으로 하는 나사식 다중 열교환기.The screw according to claim 1, wherein a normal burner 80 is mounted on the high temperature medium inlet 21 side, and a communication 90 is mounted on the high temperature medium outlet 21 'side to be used as a boiler. Type multiple heat exchanger.
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CN114409409B (en) * 2021-12-31 2023-03-17 宁波伏尔肯科技股份有限公司 Integrated silicon carbide ceramic heat exchanger and manufacturing method thereof

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KR100687462B1 (en) * 2005-08-22 2007-02-27 정문화 Multi-thread type heat exchanger and the manufacture method

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