KR20000042070A - Heat exchanger by using multitube - Google Patents

Heat exchanger by using multitube Download PDF

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Publication number
KR20000042070A
KR20000042070A KR1019980058145A KR19980058145A KR20000042070A KR 20000042070 A KR20000042070 A KR 20000042070A KR 1019980058145 A KR1019980058145 A KR 1019980058145A KR 19980058145 A KR19980058145 A KR 19980058145A KR 20000042070 A KR20000042070 A KR 20000042070A
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KR
South Korea
Prior art keywords
tube
fluid
heat exchanger
heated
particles
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KR1019980058145A
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Korean (ko)
Inventor
한희석
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한희석
주식회사 제로테크
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Priority to KR1019980058145A priority Critical patent/KR20000042070A/en
Publication of KR20000042070A publication Critical patent/KR20000042070A/en

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Classifications

    • 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
    • F28D3/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium flows in a continuous film, or trickles freely, over the conduits
    • F28D3/04—Distributing arrangements
    • 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
    • F28D7/16—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 arranged in parallel spaced relation
    • F28D7/1615—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 arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium
    • F28D7/1623—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 arranged in parallel spaced relation the conduits being inside a casing and extending at an angle to the longitudinal axis of the casing; the conduits crossing the conduit for the other heat exchange medium with particular pattern of flow of the heat exchange media, e.g. change of flow direction

Abstract

PURPOSE: A heat exchanger by using a multitube system is provided to minimize the heat exchanger and an installation space by a forming heating tube in a closely positioned mutitube structure. CONSTITUTION: A heat exchanger by using a multitube system includes a main body(100) formed with an inlet tube(110) for introducing a fluid to be heated at a lower part and an outlet tube(120) for discharging a heated fluid at an upper part, distributing plates(200) mounted on the inlet tube with a predetermined interval and having a plurality of distributing passages(210) for uniformly maintaining a velocity of the fluid introduced via the inlet tube to be heated, a heating tube(300) positioned on the distributing plate for raising the fluid to be heated between an external tube(310) and an intermediate tube(320) and lowering the fluid in an inner tube(330), fluid tubes of high temperature (400) mounted at upper and lower parts of the intermediate tube for heating the heating tube by introducing a fluid of high temperature into the intermediate tube, circulation particles(500) for cleaning impurities formed on wall parts of the heating tube by circulating with the fluid to be heated in the heating tube, a stationary plate(600) formed at a lower part of the inner tube for continuous circulation of the circulation particles, and a nozzle(700) mounted at a lower part of the main body horizontally for separating the circulation particles when repairing the heat exchanger.

Description

다중관을 이용한 열교환기Heat exchanger

본 발명은 산업 및 환경공정에서 일반적으로 사용하는 쉘 또는 튜브형 열교환기에 관한 것으로, 특히 전열튜브내를 순환입자가 연속적으로 순환하는 과정에서 전열튜브벽에 형성된 이물질을 제거함은 물론 제품의 크기를 소형화하고 적은 유량으로도 열교환이 이루어지게 하여 피가열유체를 이송하는데 소요되는 펌프동력을 최소화할 수 있도록 한 다중관을 이용한 열교환기에 관한 것이다.The present invention relates to a shell or tube type heat exchanger generally used in industrial and environmental processes, and in particular, to remove foreign substances formed on the wall of the heat transfer tube in the course of continuously circulating particles in the heat transfer tube, and to reduce the size of the product. The present invention relates to a heat exchanger using a multi-pipe to minimize the pump power required to transfer the heated fluid by heat exchange at a low flow rate.

일반적으로 기존의 쉘 또는 튜브형 열교환기는 한 개의 튜브를 필요한 전열면적 만큼 다량으로 배열하기 때문에 열교환기의 크기가 매우 대형화되어 있다. 따라서 열교환기의 크기를 줄이기 위해 판형열교환기와 같은 콤팩트한 구조의 열교환기가 개발되어 보급되고 있으나, 대부분의 유체 특히 폐수는 부유입자 및 이온물질이 다량으로 존재하여 유체가 열전달면을 통과하는 과정에 열전달면에 침적되거나 석출 및 부식등에 의해 화울링(Fouling) 또는 스케일(Scale)과 같은 이물질이 손실될 뿐 아니라 관로의 손실수두가 증가하게 되어 유체를 유동시키는데 불필요한 펌프동력을 상승하게 된다.In general, a conventional shell or tube heat exchanger has a large heat exchanger because the tube is arranged in a large amount as much as the required heat transfer area. Therefore, in order to reduce the size of the heat exchanger, a compact heat exchanger such as a plate heat exchanger has been developed and disseminated, but most fluids, particularly waste water, have a large amount of suspended particles and ionic materials, so that the thermoelectric fluid passes through the heat transfer surface. In addition to the loss of foreign matters such as fouling or scale due to deposition on the moon, precipitation, and corrosion, the head of the pipe increases and the pump power is increased.

따라서 이러한 문제점을 해결하기 위해 주기적으로 기계적으로나 화학적인 방법으로 세정하여야만 하나, 이와 같은 세정은 이차적인 환경오염을 야기하고 세정에 필요한 시간만큼 본 공정 설비의 운전을 정지하여야 한다.Therefore, in order to solve this problem, cleaning must be performed periodically by mechanical or chemical methods, but such cleaning causes secondary environmental pollution and the operation of the process equipment must be stopped for the time required for cleaning.

쉘 또는 튜브형 열교환기는 크기가 커지는 단점이 있지만 튜브내를 통과하는 피가열유체의 유속을 증가시켜 이물질의 형성을 제어할 수 있어 널리 보급되어져 있다. 하지만 쉘 또는 튜브형 열교환기에서도 이물질의 형성은 불가피하고 이와 같은 문제를 해결하기 위해서 스폰지로 제조된 크린 볼(Clean Ball)과 같은 입자를 피가열유체와 같이 통과시켜 이물질의 형성을 제어하는 기술등이 개발되어지고 있다.Shell or tube heat exchangers have the disadvantage of increasing size, but are widely used because they can control the formation of foreign matter by increasing the flow rate of the heated fluid passing through the tube. However, in the shell or tube heat exchanger, the formation of foreign matters is inevitable, and in order to solve such problems, technologies such as clean balls made of sponges and the like to be heated with a heated fluid control the formation of foreign matters. Is being developed.

상기한 이물질 제어방안은 열교환기 외부에서 순환입자를 분리하는 분리장치와 순환입자를 이송하는 특수한 펌프등이 필요하여 부속품 설치비용이 높고 순환입자의 마모등으로 이물질 제어효율이 시간의 경과에 따라 떨어진다.The foreign matter control method requires a separator for separating the circulating particles from the outside of the heat exchanger and a special pump for transferring the circulating particles, resulting in high installation cost of accessories and deterioration of foreign matter control efficiency due to wear of the circulating particles. .

따라서 본 발명의 목적은 전열튜브내를 순환입자가 연속적으로 순환하는 과정에서 전열튜브벽에 형성된 이물질을 제거함은 물론 제품의 크기를 소형화하고 적은 유량으로도 열교환이 이루어지게 하여 피가열유체를 이송하는데 소요되는 펌프동력을 최소화할 수 있도록 한 다중관을 이용한 열교환기를 제공 하는데 있다.Therefore, an object of the present invention is to remove the foreign matter formed on the heat transfer tube wall in the process of continuously circulating the circulation particles in the heat transfer tube as well as to reduce the size of the product and to perform heat exchange at a low flow rate to transfer the fluid to be heated. In order to minimize the pump power required to provide a heat exchanger using a multi-pipe.

도1은 본 발명에 따른 다중관 열교환기의 종단면도,1 is a longitudinal sectional view of a multi-pipe heat exchanger according to the present invention;

도2는 본 발명에 따른 다중관 열교환기 유입부의 요부확대 단면도,Figure 2 is an enlarged cross-sectional view of the main portion of the multi-pipe heat exchanger inlet according to the present invention,

도3은 본 발명에 따른 순환입자의 직경에 따른 종말속도를 나타낸 그래프Figure 3 is a graph showing the terminal speed according to the diameter of the circulating particles according to the present invention

<도면중 주요 부분에 대한 부호의 설명><Explanation of symbols for main parts of the drawings>

100 ; 본체 110 ; 유입관 120 ; 유출관100; Main body 110; Inlet pipe 120; Outflow pipe

200 ; 분배판 210 ; 분배통로 300 ; 전열튜브200; Distribution plate 210; Distribution channel 300; Electric tube

310 ; 외부튜브 320 ; 중간튜브 330 ; 내부튜브310; Outer tube 320; Intermediate tube 330; Inner tube

400 ; 고온유체관 500 ; 순환입자 600 ; 정지판400; High temperature fluid pipe 500; Circulating particles 600; Stop plate

700 ; 노즐700; Nozzle

상기한 목적을 달성하기 위한 수단으로 본 발명은 하단에는 피가열유체가 유입되는 유입관이 형성되고, 상단에는 가열된 가열유체가 유출되는 유출관이 형성되는 본체와;The present invention as a means for achieving the above object is formed at the bottom is an inlet pipe to which the heated fluid is introduced, the upper body is formed with an outlet tube for the heated heating fluid flows out;

상기 유입관의 상부에 일정한 간격을 가지고 설치되고 유입관을 통해 유입된 피가열유체의 유속을 균등하게 유지할 수 있도록 다수의 분배통로를 갖는 분배판과;A distribution plate installed at an upper portion of the inflow pipe and having a plurality of distribution passages so as to maintain an even flow rate of the heated fluid introduced through the inflow pipe;

상기 분배판의 상부에 위치한 상태에서 분배통로를 통해 유입되는 피가열유체가 외부튜브와 중간튜브 사이로 상승되고, 상승된 피가열유체는 다시 내부튜브로 하강되게 하는 전열튜브와;A heat transfer tube allowing the heated fluid flowing through the distribution passage in the state positioned above the distribution plate to rise between the outer tube and the intermediate tube, and the raised heated fluid to fall back to the inner tube;

상기 중간튜브의 상,하단에 각각 설치되어 고온유체를 중간튜브내로 유입시킴으로서 전열튜브를 전체를 가열시키는 고온유체관과;A high temperature fluid tube installed at upper and lower ends of the intermediate tube to heat the entire heat transfer tube by introducing a high temperature fluid into the intermediate tube;

상기 전열튜브내에서 순환되는 피가열유체와 같이 순환되고 종말속도 이하일때는 하강하고 종말속도 이상일때는 상승하는 과정을 거치면서 전열튜브 벽면에 형성된 이물질을 세정하는 순환입자와;Circulating particles that circulate in the heat transfer tube, such as a heated fluid, and descend when the end speed is lower than the end speed and rise when the end speed is above the end speed;

상기 순환입자의 순환이 연속적으로 이루어지도록 내부튜브 하단에 형성되는 정지판과;A stop plate formed at a lower end of the inner tube to continuously circulate the circulation particles;

상기 본체 하단에 수평으로 설치되어 열교환기의 수리 및 정비시 순환입자를 분리하는 노즐로 구성되는 것을 그 기술적 구성상의 기본 특징으로 한다.Is installed horizontally on the bottom of the main body is composed of a nozzle for separating the circulating particles during the repair and maintenance of the heat exchanger as a basic feature of the technical configuration.

(실시예)(Example)

이하 본 발명의 바람직한 실시예를 첨부도면을 참조하여 보다 상세하게 설명하면 다음과 같다.Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

다음으로 본 발명에 따른 산업 및 환경공정에서 필요한 자율세정식 다중관 열교환기는 도면을 참조하여 상세하게 설명한다.Next, the self-cleaning multi-pipe heat exchanger required for industrial and environmental processes according to the present invention will be described in detail with reference to the accompanying drawings.

도1은 본 발명에 따른 다중관 열교환기의 구성을 나타내는 종단면도이고, 도2는 본 발명에 따른 다중관 열교환기의 요부 확대단면도 이다.1 is a longitudinal sectional view showing the configuration of a multi-tube heat exchanger according to the present invention, Figure 2 is an enlarged cross-sectional view of the main portion of the multi-tube heat exchanger according to the present invention.

본 발명은 도1과 도2에서와 같이 쉘 또는 튜브형 열교환기에 있어서, 하단에는 피가열유체가 유입되는 유입관(110)이 형성되고, 상단에는 가열된 가열유체가 유출되는 유출관(120)이 형성되는 본체(100)와; 상기 유입관(110)의 상부에 일정한 간격을 가지고 설치되고 유입관(110)을 통해 유입된 피가열유체의 유속을 균등하게 유지할 수 있도록 다수의 분배통로(210)를 갖는 분배판(200)과; 상기 분배판(200)의 상부에 위치한 상태에서 분배통로(210)를 통해 유입되는 피가열유체가 외부튜브(310)와 중간튜브(320) 사이로 상승되고, 상승된 피가열유체는 다시 내부튜브(330)로 하강되게 하는 전열튜브(300)와; 상기 중간튜브(320)의 상,하단에 각각 설치되어 고온유체를 중간튜브(320)내로 유입시킴으로서 전열튜브(300)를 전체를 가열시키는 고온유체관(400)과; 상기 전열튜브(300)내에서 순환되는 피가열유체와 같이 순환되고 종말속도 이하일때는 하강하고 종말속도 이상일때는 상승하는 과정을 거치면서 전열튜브(300) 벽면에 형성된 이물질을 세정하는 순환입자(500)와; 상기 순환입자(500)의 순환이 연속적으로 이루어지도록 내부튜브(330) 하단에 형성되는 정지판(600)과; 상기 본체(100) 하단에 수평으로 설치되어 열교환기의 수리 및 정비시 순환입자(500)를 분리하는 노즐(700)로 구성된다.1 and 2, in the shell or tube type heat exchanger, an inlet pipe 110 through which a heated fluid is introduced is formed at a lower end thereof, and an outlet tube 120 through which a heated heating fluid is discharged is formed at an upper end thereof. A main body 100 formed; A distribution plate 200 having a plurality of distribution passages 210 installed at an upper portion of the inlet pipe 110 at regular intervals to maintain the flow rate of the heated fluid introduced through the inlet pipe 110 evenly; ; In the state located above the distribution plate 200, the heated fluid flowing through the distribution passage 210 is raised between the outer tube 310 and the intermediate tube 320, and the heated heated fluid is again the inner tube ( A heat transfer tube 300 which is lowered to 330; A high temperature fluid tube 400 installed at upper and lower ends of the intermediate tube 320 to heat the entire heat transfer tube 300 by introducing a high temperature fluid into the intermediate tube 320; Circulating particles 500 for cleaning foreign substances formed on the wall of the heat transfer tube 300 while going through the process of being circulated with the heated fluid circulating in the heat transfer tube 300 and falling below the end speed and rising when the end speed is higher. Wow; A stop plate 600 formed at a lower end of the inner tube 330 to continuously circulate the circulation particles 500; Is installed horizontally on the bottom of the main body 100 is composed of a nozzle 700 for separating the circulating particles 500 during the repair and maintenance of the heat exchanger.

여기서, 정지판(600)은 내부튜브(330)의 직경 보다 더 큰 직경을 가지도록 하여 순환입자가 원활하게 상승될 수 있도록 하였다.Here, the stop plate 600 has a diameter larger than the diameter of the inner tube 330 to allow the circulation particles to rise smoothly.

그리고 순환입자(500)의 형상과 크기는 유체의 밀도와 점도와 같은 물리적인 특성에 의해 결정 되어지고 열교환기 및 순환입자(500)의 재질은 유체의 속도가 순환입자(500)의 종말속도 이하가 되도록 하여 순환입자의 분리가 원활하도록 한다. 이러한 순환입자(500)의 종말속도는 0.5m/s 이하가 되도록 한다.The shape and size of the circulating particles 500 are determined by physical properties such as the density and viscosity of the fluid. The material of the heat exchanger and the circulating particles 500 has a velocity of the fluid less than or equal to the end velocity of the circulating particles 500. The separation of the circulating particles should be smooth. The terminal speed of the circulating particles 500 is to be 0.5m / s or less.

즉, 본 발명의 열교환기내에서 순환입자(500)의 순환이 일어나는 주요 매개변수는 종말속도로서 질량m인 순환입자가 튜브내에서 점성계수 μ인 유체와 유동하면서 중력에 의해 침강이 일어날 때 입자의 가속도 가 0인 경우의 상대속도를 종말속도 μt라 하고 1차원 유동식에 의해 다음과 같이 구한다.That is, the main parameter in which the circulation of the circulating particles 500 occurs in the heat exchanger of the present invention is the terminal velocity, and when the circulating particles of mass m flow with the fluid having a viscosity of μ in the tube, the sedimentation of the particles occurs by gravity. acceleration Is 0, the final velocity is μ t and is calculated as follows by the one-dimensional flow formula.

수학식 1에서 g는 증력가속도, ρp와 ρ는 순환입자의 밀도와 유체의 밀도이고 CD는 유동장의 레이놀드 수에 의해 변하는 무차원 항력계수, Ap는 입자의 운동방향에 수직인 평면에서 측정한 입자의 부영면적이다.In Equation 1, g is the gravitational acceleration, ρ p and ρ are the density of the circulating particles and the density of the fluid, C D is the dimensionless drag coefficient which varies with the Reynolds number of the flow field, and A p is the plane perpendicular to the direction of motion of the particles. The eutrophic area of the particle measured at.

순환입자의 형상이 구형이고 지름이 Dp일 때 종말속도 Ut는When the particle shape is spherical and the diameter is D p , the terminal velocity U t is

이고, 수학식 2에서 CD는 레이놀드 수 의 함수로서 본 발명은 레이놀드 수가 1에서 1000정도의 유동으로 무차원 항력계수 CD는 다음과 같다.Where C D is the Reynolds number As a function of the present invention, the dimensionless drag coefficient C D is obtained as a Reynolds number of about 1 to 1000.

예를들어 피가열유체의 밀도가 1000kg/m2이고 순환입자의 밀도가 2635kg/m2인 구형의 유리구슬이 레이놀드 수가 1000인 상태로 튜브내에서 유동할 때 순환입자의 직경에 따른 종말속도를 구하면 도3에서와 같다.For example, the density of the heated fluid 1000kg / m 2 and the end speed of the diameter of the circulating particles when the density of the circulating particles to flow in the tube in the 2635kg / m 2 can noldeu of the ray of glass beads of spherical 1000 state Is obtained as shown in FIG.

따라서 순환입자(500)가 튜브내에서 상승하기 위해서는 유체의 속도는 그래프에서와 같이 입자직경에 따른 종말속도 보다 커야 하며 종말속도 보다 적은 경우에는 순환입자가 하강하게 된다.Therefore, in order for the circulating particles 500 to rise in the tube, the velocity of the fluid must be larger than the terminal velocity according to the particle diameter as shown in the graph, and when the circulating particle 500 is smaller than the terminal velocity, the circulating particles fall.

순환에 필요한 유량은 유체의 속도에 유체가 통과하는 단면적을 곱한 것으로 순환에 필요한 유량을 최소로 하기위해서는 단면적이나 유체의 속도를 줄어야만 한다. 단면적은 튜브의 배열에 따른 기하학적 구조에 의해 결정되어 지고 유체의 속도는 종말속도와 밀접한 관계를 가지고 있으며 이러한 인자는 순환입자의 직경에 의해 결정되어 진다.The flow rate required for circulation is the velocity of the fluid multiplied by the cross-sectional area through which the fluid passes. To minimize the flow rate required for circulation, the cross-sectional area or the velocity of the fluid must be reduced. The cross-sectional area is determined by the geometry of the tube arrangement and the velocity of the fluid is closely related to the terminal velocity, and this factor is determined by the diameter of the circulating particles.

따라서 적은 유량으로 순환입자(500)를 자율순환시키고 튜브의 전열면적을 밀접화 하기 위해서는 순환입자의 종말속도가 0.5kg/m 이하일 때 경제적이다.Therefore, in order to autonomously circulate the circulating particles 500 at a small flow rate and to close the heat transfer area of the tube, it is economical when the end velocity of the circulating particles is 0.5 kg / m or less.

이와 같이 구성된 본 발명은 피가열유체가 유입관(110)으로 유입되면 분배판(200)은 분배통로(210)를 통과하는 과정에서 피가열유체는 유속이 균등하게 유지하면서 상부로 상승하게 된다.In the present invention configured as described above, when the heated fluid is introduced into the inlet pipe 110, the distribution plate 200 rises upward while maintaining the flow rate evenly while the distribution plate 200 passes through the distribution passage 210.

분배통로(210)를 통해 유입되는 피가열유체는 전열튜브(300)의 외부튜브(310)와 중간튜브(320) 사이로 상승되고, 상승된 피가열유체는 다시 내부튜브(330)로 하강하게 된다. 이때 전열튜브(300)내에서 순환되는 피가열유체와 같이 순환입자(500)는 순환되고 종말속도 이하일때는 하강하고 종말속도 이상일때는 상승하는 과정을 거치면서 전열튜브(300) 벽면에 형성된 이물질을 세정한다.The heated fluid flowing through the distribution passage 210 is raised between the outer tube 310 and the intermediate tube 320 of the heat transfer tube 300, and the heated heated fluid is lowered back to the inner tube 330. . At this time, like the heated fluid circulated in the heat transfer tube 300, the circulating particles 500 are circulated and the foreign substances formed on the wall of the heat transfer tube 300 are washed while undergoing a process of descending when the temperature is lower than the terminal speed and rising when the temperature is higher than the terminal speed. do.

그리고 중간튜브(320)의 상,하단에 각각 설치된 고온유체관(400)은 고온유체를 중간튜브(320)내로 유입시킴으로서 전열튜브(300) 전체를 가열시키게 된다.In addition, the hot fluid pipes 400 installed at the upper and lower ends of the intermediate tube 320 respectively heat the entire heat transfer tube 300 by introducing the hot fluid into the intermediate tube 320.

이상에서 살펴본 바와 같이 본 발명에 의하면, 열교환기의 전열튜브가 다중관으로 설치되고 내부에 설치된 각 튜브가 밀접하게 배열되어 있기 때문에 제품이 소형화되고 설치공간을 그만큼 확보할 수 있다.As described above, according to the present invention, since the heat transfer tubes of the heat exchanger are installed in multiple tubes and each tube installed inside is closely arranged, the product can be miniaturized and the installation space can be secured accordingly.

또한, 전열튜브벽내를 순환입자가 연속적으로 순환함으로서 이물질의 형성을 막아줄뿐 아니라 종래와 같이 이물질 제거를 위해 사용되는 약품 및 세정시간을 절약하고 시스템을 안전하게 운용할 수 있으며, 다중의 튜브내 유속을 순환입자의 종말속도로 최소화하여 유량을 적게 함으로서 유체이송에 따른 펌프동력을 감소할 수 있는 등의 효과가 있는 것이다.In addition, the circulation particles continuously circulate in the heat transfer tube wall to prevent the formation of foreign substances, as well as to save chemicals and cleaning time used for removing foreign substances as in the past, and to safely operate the system, and to flow in multiple tubes By reducing the flow rate by minimizing the end velocity of the circulating particles it is possible to reduce the pump power due to the fluid transfer.

이상에서는 본 발명을 특정의 바람직한 실시예를 참고하여 설명하였으나, 본 발명은 상기한 실시예에 한정되지 아니하며 본 발명의 요지를 벗어나지 않는 범위에서 당해 발명이 속하는 분야에서 통상의 지식을 가진자에 의해 다양한 변경과 수정이 가능하게 이루어질 수 있는 것이다.In the above, the present invention has been described with reference to specific preferred embodiments, but the present invention is not limited to the above-described embodiments and should be made by those skilled in the art to which the present invention pertains without departing from the gist of the present invention. Various changes and modifications can be made.

Claims (3)

쉘 또는 튜브형 열교환기에 있어서,In a shell or tube heat exchanger, 하단에는 피가열유체가 유입되는 유입관(110)이 형성되고, 상단에는 가열된 가열유체가 유출되는 유출관(120)이 형성되는 본체(100)와;An inlet tube 110 through which a heated fluid flows in a lower end thereof, and a main body 100 in which an outlet tube 120 through which a heated heating fluid flows out is formed; 상기 유입관(110)의 상부에 일정한 간격을 가지고 설치되고 유입관(110)을 통해 유입된 피가열유체의 유속을 균등하게 유지할 수 있도록 다수의 분배통로(210)를 갖는 분배판(200)과;A distribution plate 200 having a plurality of distribution passages 210 installed at an upper portion of the inlet pipe 110 at regular intervals to maintain the flow rate of the heated fluid introduced through the inlet pipe 110 evenly; ; 상기 분배판(200)의 상부에 위치한 상태에서 분배통로(210)를 통해 유입되는 피가열유체가 외부튜브(310)와 중간튜브(320) 사이로 상승되고, 상승된 피가열유체는 다시 내부튜브(330)로 하강되게 하는 전열튜브(300)와;In the state located above the distribution plate 200, the heated fluid flowing through the distribution passage 210 is raised between the outer tube 310 and the intermediate tube 320, and the heated heated fluid is again the inner tube ( A heat transfer tube 300 which is lowered to 330; 상기 중간튜브(320)의 상,하단에 각각 설치되어 고온유체를 중간튜브(320)내로 유입시킴으로서 전열튜브(300)를 전체를 가열시키는 고온유체관(400)과;A high temperature fluid tube 400 installed at upper and lower ends of the intermediate tube 320 to heat the entire heat transfer tube 300 by introducing a high temperature fluid into the intermediate tube 320; 상기 전열튜브(300)내에서 순환되는 피가열유체와 같이 순환되고 종말속도 이하일때는 하강하고 종말속도 이상일때는 상승하는 과정을 거치면서 전열튜브(300) 벽면에 형성된 이물질을 세정하는 순환입자(500)와;Circulating particles 500 for cleaning foreign substances formed on the wall of the heat transfer tube 300 while going through the process of being circulated with the heated fluid circulating in the heat transfer tube 300 and falling below the end speed and rising when the end speed is higher. Wow; 상기 순환입자(500)의 순환이 연속적으로 이루어지도록 내부튜브(330) 하단에 형성되는 정지판(600)과;A stop plate 600 formed at a lower end of the inner tube 330 to continuously circulate the circulation particles 500; 상기 본체(100) 하단에 수평으로 설치되어 열교환기의 수리 및 정비시 순환입자(500)를 분리하는 노즐(700)로 구성되는 것을 특징으로 하는 다중관을 이용한 열교환기.Heat exchanger using a multi-pipe, characterized in that consisting of a nozzle 700 is installed horizontally on the bottom of the main body 100 to separate the circulating particles (500) during repair and maintenance of the heat exchanger. 제1항에 있어서, 상기 정지판(600)은 내부튜브(330)의 직경 보다 더 큰 직경을 가짐을 특징으로 하는 다중관을 이용한 열교환기.The heat exchanger of claim 1, wherein the stop plate (600) has a diameter larger than that of the inner tube (330). 제1항에 있어서, 순환입자(500)의 종말속도는 0.5m/s 이하인 것을 특징으로 하는 다중관을 이용한 열교환기.The heat exchanger of claim 1, wherein the end speed of the circulating particles is less than 0.5 m / s.
KR1019980058145A 1998-12-24 1998-12-24 Heat exchanger by using multitube KR20000042070A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220099780A (en) * 2021-01-07 2022-07-14 정우산기 주식회사 Ball strainer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20220099780A (en) * 2021-01-07 2022-07-14 정우산기 주식회사 Ball strainer

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