KR100292151B1 - Electric heating bar of boiler - Google Patents

Electric heating bar of boiler Download PDF

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Publication number
KR100292151B1
KR100292151B1 KR1019980006335A KR19980006335A KR100292151B1 KR 100292151 B1 KR100292151 B1 KR 100292151B1 KR 1019980006335 A KR1019980006335 A KR 1019980006335A KR 19980006335 A KR19980006335 A KR 19980006335A KR 100292151 B1 KR100292151 B1 KR 100292151B1
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KR
South Korea
Prior art keywords
heat
electric heating
fluid
boiler
heating bar
Prior art date
Application number
KR1019980006335A
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Korean (ko)
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KR19990071093A (en
Inventor
이상국
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이상국
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Priority to KR1019980006335A priority Critical patent/KR100292151B1/en
Publication of KR19990071093A publication Critical patent/KR19990071093A/en
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Publication of KR100292151B1 publication Critical patent/KR100292151B1/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
    • F24H9/00—Details
    • F24H9/0005—Details for water heaters
    • F24H9/001—Guiding means
    • F24H9/0015—Guiding means in water channels
    • F24H9/0021—Sleeves surrounding heating elements or heating pipes, e.g. pipes filled with heat transfer fluid, for guiding heated liquid
    • 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
    • F24H1/10—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium
    • F24H1/101—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply
    • F24H1/102—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance
    • F24H1/105—Continuous-flow heaters, i.e. heaters in which heat is generated only while the water is flowing, e.g. with direct contact of the water with the heating medium using electric energy supply with resistance formed by the tube through which the fluid flows
    • 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
    • F24H2250/00—Electrical heat generating means
    • F24H2250/02—Resistances

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

Abstract

PURPOSE: An electric heating bar of a boiler is provided to improve the heat exchange efficiency by activating the heat exchange action when fluid introduced into a heat exchanger passes through the electric heating bar. CONSTITUTION: An electric heating bar comprises a case(5) formed at both sides thereof with an inlet(1) and an outlet(3). A fluid passage(7) is formed in the case(5). The electric heating bar(9) is installed lengthwise of the fluid passage(7). The electric heating bar(9) includes a body(11) which is heated when a power is applied thereto from an exterior, and spiral fins(13) which are formed lengthwise of the body(11). The spiral direction of the spiral fins(13) is preferably formed on an outer surface of the body(11) in such a manner that fluid easily pass through the fluid passage(7).

Description

보일러 전열봉 (An electric heating bar of boiler)An electric heating bar of boiler

본 발명은 보일러의 전열봉에 관한 것으로서, 특히, 보일러에 흐르는 유체 온도를 빠른 시간에 상승시킬 수 있도록 한 보일러의 전열봉에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat transfer rod of a boiler, and more particularly, to a heat transfer rod of a boiler capable of raising a fluid temperature flowing in a boiler in a short time.

일반적으로, 보일러의 전열봉은 열교환기 등의 핵심요소로서 유체의 온도를 급상승시킬 목적으로 설치된 것이다.In general, the heating rod of the boiler is installed as a key element of the heat exchanger and the like to increase the temperature of the fluid.

즉, 이 전열봉은 보통 외부에서 인가된 전원을 통해 자체 발열하게 되는 바, 열교환기에 유입된 급수는 이 전열봉 주위를 흐르면서 전열봉과의 열교환작용에 의해 온수로 되어 열교환기를 빠져 나오게 된다.In other words, the heating rod is usually self-heating through the power applied from the outside, the water flowing into the heat exchanger flows around the heating rod, the hot water by the heat exchange action with the heating rod to exit the heat exchanger.

이와같이 열교환기에 설치되어 유체를 가열시키는 통상의 전열봉이 도 3에 도시되어 있는 바, 케이스(50)내에 형성된 유로(51)에 전열봉(52)이 길이방향으로 길게 설치되어 있고, 이 케이스(50)의 일측과 타측에 각각 유입구(53)와 배출구(54)가 형성되어, 유입구(53)를 통해 유입된 유체가 상기 전열봉(52)을 통과하는 동안 열교환작용으로 인해 흡열된 후 배출구(54)를 빠져나오도록 한 상태가 나타나 있다.As shown in FIG. 3, a heat transfer rod 52 is installed in the heat exchanger to heat the fluid, and the heat transfer rod 52 is provided in the lengthwise direction in the flow path 51 formed in the case 50. Inlet 53 and outlet 54 are formed on one side and the other side, respectively, so that the fluid introduced through the inlet 53 is endothermic due to heat exchange while passing through the heat transfer rod 52, the outlet 54 Is shown to exit.

그런데, 도시된 전열봉에 의하면, 그 형태가 단지 원통형상으로 이루어져 있어, 이 전열봉의 외주면 근처에서는 유체와의 열교환작용이 활발히 일어나나 상기 외주면에서 반직경방향으로 멀어지면 멀어질수록 열교환작용이 상대적으로 활발히 일어나지 못해, 결국 전열봉의 열교환 효율이 현저하게 떨어지는 문제점이 있었다.However, according to the illustrated heat transfer rod, its shape is merely cylindrical, and heat exchange with the fluid occurs actively near the outer circumferential surface of the heat transfer rod, but as the distance moves away from the outer circumferential surface in the semi-diameter direction, the heat exchange action is relatively As it does not happen actively, there was a problem that the heat exchange efficiency of the heat transfer rod is significantly reduced.

이에 본 발명은 상기의 문제점을 해결하기 위해 안출된 것으로서, 열교환기에 유입된 유체가 전열봉을 통과하면서 열교환 작용이 활발히 일어나도록 하여 열교환 효율이 향상될 수 있도록 한 보일러의 전열봉을 제공함에 그 목적이 있다.Accordingly, the present invention has been made to solve the above problems, to provide a heat transfer rod of a boiler to improve the heat exchange efficiency by allowing the heat introduced to the heat exchanger fluid to pass through the heat transfer action to actively occur. There is this.

상기의 목적을 달성하기 위해 본 발명은, 보일러의 열교환기에 설치된 전열봉에 있어서, 상기 전열봉의 몸체 외주면에 길이방향으로 나선형의 방열핀이 설치되어, 열교환기에 유입된 유체가 이 방열핀의 나선 방향을 따라 배출될 수 있도록 이루어져 있다.In order to achieve the above object, the present invention, in the heat transfer rod installed in the heat exchanger of the boiler, a spiral heat dissipation fin is installed in the longitudinal direction on the outer peripheral surface of the body of the heat transfer rod, the fluid introduced into the heat exchanger along the spiral direction of the heat dissipation fin It can be discharged.

따라서, 상기한 기술 구성에 의하면, 열교환기에 유입된 유체는 보다 넓어진 방열면적을 가진 방열핀을 통해 그 열교환 효율이 크게 향상된 이점이 있는 것이다.Therefore, according to the above technical configuration, the fluid introduced into the heat exchanger has the advantage that the heat exchange efficiency is greatly improved through the heat radiation fin having a larger heat radiation area.

제1도는 본 발명에 따른 전열봉을 도시한 사시도이고,1 is a perspective view showing a heating rod according to the present invention,

제2도는 본 발명에 따른 전열봉이 열교환기에 설치된 상태를 나타낸 단면도,2 is a cross-sectional view showing a state in which the heat transfer rod is installed in the heat exchanger according to the present invention,

제3도는 종래의 기술 구성에 따른 전열봉을 나타낸 도면이다.3 is a view showing a heating rod according to the prior art configuration.

〈도면의 주요부분에 대한 부호의 설명〉<Explanation of symbols for main parts of drawing>

1 : 유입구 3 : 배출구1: inlet port 3: outlet port

5 : 케이스 7 : 유로5: case 7: euro

9 : 전열봉 11 : 몸체9: electric heating rod 11: body

13 : 방열핀13: heat radiation fin

이하 첨부된 도면에 의해 본 발명에 따른 실시예를 상세하게 설명한다.Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

도 1 및 도 2는 본 발명에 따른 전열봉과 이 전열봉이 열교환기에 설치된 상태를 각각 도시한 것으로서, 양측부에 유입구(1)와 배출구(3)가 각각 형성된 케이스(5) 내에 유체 유로(7)가 형성되어 있고, 이 유로(7)에 대해 길이방향으로 본 발명에 따른 전열봉(9)이 설치된 상태가 나타나 있다.1 and 2 are views illustrating a state in which a heat transfer rod and a heat transfer rod are installed in a heat exchanger, respectively, and a fluid flow path 7 in a case 5 in which an inlet 1 and an outlet 3 are respectively formed at both sides. Is shown, and the state in which the heat-transfer rod 9 which concerns on this invention was provided in the longitudinal direction with respect to this flow path 7 is shown.

즉, 도시된 바에 의하면, 본 발명에 따른 전열봉(9)은 외부의 전원이 인가되면 발열되는 몸체(11)와, 이 몸체(11)의 외주면에 길이 방향으로 형성된 나선형의 방열핀(fin)(13)으로 이루어져 있다.That is, as shown, the heat transfer rod (9) according to the present invention is a heat radiation fin (fin) formed in the longitudinal direction on the outer body 11 and the outer peripheral surface of the heat generated when the external power is applied ( 13).

여기에서, 방열핀(13)의 나선방향은 유체가 유로(7)를 원활히 통과할 수 있는 방향으로 상기 몸체(11)의 외주면에 형성되는 것이 바람직하다.Here, the spiral direction of the heat radiation fin 13 is preferably formed on the outer circumferential surface of the body 11 in the direction in which the fluid can pass smoothly through the flow path (7).

이와같이 설치된 방열핀(13)은 다음과 같은 작용을 하게 된다.The heat dissipation fins 13 installed in this way have the following function.

유입구(1)를 통해 유입된 유체는 유로(7)를 통과하는 중에 상기 방열핀(13)에 의해 나선형의 와류를 일으키며 배출구(3)로 빠져나가게 된다.The fluid introduced through the inlet 1 is discharged to the outlet 3 while causing a spiral vortex by the heat radiation fin 13 while passing through the flow path 7.

이때, 유체는 몸체(11)의 외주면 근처는 물론 방열핀(13) 부근에서의 열교환 작용에 의해 전열봉(9)의 열을 충분히 흡열하게 된다.At this time, the fluid absorbs heat of the heat transfer rod 9 sufficiently by the heat exchange action in the vicinity of the outer circumferential surface of the body 11 and in the vicinity of the heat dissipation fin 13.

즉, 전열봉(9)에서의 발생열은 전열봉(9)의 외주면 뿐만 아니라 방열핀(13)을 통해서도 방열하게 되어, 유체는 이 열을 충분히 흡수할 있는 것이다.That is, heat generated in the heat transfer rod 9 is radiated not only through the outer circumferential surface of the heat transfer rod 9 but also through the heat radiation fin 13, and the fluid can sufficiently absorb this heat.

보다 상세히 설명하면, 이 방열핀(13)은 몸체(11)의 길이 방향으로 길게 설치되어 있어, 유입구(1)를 통해 막 유입된 유체는 몸체(11)에서 소정의 간격으로 겹겹이 형성된 방열핀(13)에 접촉되면서 전열봉(9)의 열을 점차로 충분히 흡수할 수 있는 것이다.In more detail, the heat dissipation fin 13 is installed in the longitudinal direction of the body 11, so that the fluid just introduced through the inlet 1, the heat dissipation fin 13 is formed at a predetermined interval in the body 11 While being in contact with the heat of the heating rod (9) will be able to absorb gradually enough.

또한, 상기 방열핀(13)은 유로(7)를 따라 흐르는 유체에 와류를 일으킴으로써 종래 유체가 전열봉(9)에 의해 국부적으로만 덥혀지던 것을 근본적으로 방지하여 유로(7)를 통과하는 유체의 전량이 고루 덥혀질 수 있게 한다.In addition, the heat dissipation fin 13 generates a vortex in the fluid flowing along the flow path 7, thereby essentially preventing the conventional fluid from being locally heated by the heat transfer rod 9 to prevent the fluid from passing through the flow path 7. Allow whole quantity to warm evenly.

따라서, 본 발명에 따른 전열봉(9)에 의하면, 방열핀(13)에 의해 방열면적이 크게 넓어질 뿐만 아니라 유체와의 접촉면적도 넓어지게 되어, 전열봉(9)과 유체와의 열교환 효율이 현저하게 향상된 이점이 있는 것이다.Therefore, according to the heat transfer rod 9 according to the present invention, not only the heat dissipation area is greatly enlarged by the heat dissipation fin 13 but also the contact area with the fluid is also widened, so that the heat exchange efficiency between the heat transfer rod 9 and the fluid is increased. There is a significant improvement.

한편, 이상 설명한 본 발명의 실시예는 전열봉(9)이 열교환기에 설치된 것을 예로 들어 설명하였으나, 본 발명에 따른 전열봉(9)은 이 실시예에 국한되지 않고, 일반적으로 보일러 시스템내에서 다수 설치되어 보일러의 급수 전체를 가열시켜 난방 등의 목적을 달성하는 데에도 실시될 수 있다.On the other hand, the embodiment of the present invention described above has been described taking as an example that the heat transfer rod 9 is installed in the heat exchanger, the heat transfer rod 9 according to the present invention is not limited to this embodiment, generally in a boiler system It can also be installed to heat the entire water supply of the boiler to achieve the purpose of heating and the like.

이상 설명한 본 발명에 따른 보일러의 전열봉에 의하면, 열교환기를 통과하는 유체가 방열핀에 의해 고르게 덥혀지게 되어, 전열봉과 유체와의 열교환 효율이 크게 향상된 데에 우수한 효과가 있는 것이다.According to the heat transfer rod of the boiler according to the present invention described above, the fluid passing through the heat exchanger is evenly warmed by the heat radiation fin, there is an excellent effect in greatly improving the heat exchange efficiency between the heat transfer rod and the fluid.

Claims (1)

보일러의 열교환기에 설치된 전열봉에 있어서, 전열봉의 몸체(11) 외주면에 길이방향으로 나선형의 방열핀(13)이 설치되어, 열교환기에 유입된 유체가 이 방열핀(13)의 나선 방향을 따라 배출될 수 있도록 이루어진 것을 특징으로 하는 보일러의 전열봉.In the heat transfer rod installed in the heat exchanger of the boiler, a spiral heat dissipation fin 13 in the longitudinal direction is installed on the outer peripheral surface of the body 11 of the heat transfer rod, so that the fluid introduced into the heat exchanger can be discharged along the spiral direction of the heat dissipation fin 13. The heating rod of the boiler, characterized in that made so that.
KR1019980006335A 1998-02-27 1998-02-27 Electric heating bar of boiler KR100292151B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1019980006335A KR100292151B1 (en) 1998-02-27 1998-02-27 Electric heating bar of boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1019980006335A KR100292151B1 (en) 1998-02-27 1998-02-27 Electric heating bar of boiler

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Publication Number Publication Date
KR19990071093A KR19990071093A (en) 1999-09-15
KR100292151B1 true KR100292151B1 (en) 2001-09-17

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