KR970009805B1 - Heating apparatus of stirling engine - Google Patents

Heating apparatus of stirling engine Download PDF

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Publication number
KR970009805B1
KR970009805B1 KR1019940000853A KR19940000853A KR970009805B1 KR 970009805 B1 KR970009805 B1 KR 970009805B1 KR 1019940000853 A KR1019940000853 A KR 1019940000853A KR 19940000853 A KR19940000853 A KR 19940000853A KR 970009805 B1 KR970009805 B1 KR 970009805B1
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South Korea
Prior art keywords
sleeve
cylinder
heating
working fluid
heating apparatus
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KR1019940000853A
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Korean (ko)
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KR950023937A (en
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정우석
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엘지전자 주식회사
구자홍
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Priority to KR1019940000853A priority Critical patent/KR970009805B1/en
Publication of KR950023937A publication Critical patent/KR950023937A/en
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Publication of KR970009805B1 publication Critical patent/KR970009805B1/en

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/14—Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the cycle used, e.g. Stirling cycle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G1/00—Hot gas positive-displacement engine plants
    • F02G1/04—Hot gas positive-displacement engine plants of closed-cycle type
    • F02G1/043—Hot gas positive-displacement engine plants of closed-cycle type the engine being operated by expansion and contraction of a mass of working gas which is heated and cooled in one of a plurality of constantly communicating expansible chambers, e.g. Stirling cycle type engines
    • F02G1/053—Component parts or details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02G—HOT GAS OR COMBUSTION-PRODUCT POSITIVE-DISPLACEMENT ENGINE PLANTS; USE OF WASTE HEAT OF COMBUSTION ENGINES; NOT OTHERWISE PROVIDED FOR
    • F02G2255/00—Heater tubes

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Thermal Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Resistance Heating (AREA)

Abstract

The heater is designed for purpose of easy manufacture at a reduced cost. The heater includes a sleeve associated with the outer part of a heating cylinder with one end closed. The heater further includes a fluid passage formed between the heating cylinder and the sleeve.

Description

스터링기기의 가열장치Heater of Sterling Equipment

제1도는 일반적인 스터링기기의 구성을 보인 단면도.1 is a cross-sectional view showing the configuration of a general sterling apparatus.

제2도는 종래 스터링기기의 가열장치인 가열기 튜브의 사시도.2 is a perspective view of a heater tube which is a heating apparatus of a conventional sterling apparatus.

제3도는 본 말명에 의한 스터링기기의 가열장치가 설치된 스터링기기의 구성을 보인 단면도.Figure 3 is a cross-sectional view showing the configuration of a sterling machine is installed a heating device of the sterling machine according to the present name.

제4도 내지 제7도는 본 발명 장치를 도시한 것.4 to 7 show the device of the present invention.

제4도는 분해사시도.4 is an exploded perspective view.

제5도는 결합상태단면도.5 is a cross-sectional view of the coupling state.

제6도는 제4도의 A-A선 단면도.6 is a cross-sectional view taken along the line A-A of FIG.

제7도는 다른 실시예의 분해사시도.7 is an exploded perspective view of another embodiment.

* 도면의 주요부분에 대한 부호의 설명* Explanation of symbols for main parts of the drawings

10 : 가열실린더, 11 : 슬리브10: heating cylinder, 11: sleeve

12 : 플랜지부 13 : 실린더 슬리브12 flange portion 13 cylinder sleeve

14 : 턱부 15 : 작동유체통과공14: jaw 15: working fluid through hole

16 : 단열슬리브 17 : 공간부16: insulation sleeve 17: space part

본 발명은 스터링기기의 가열장치에 관한 것으로 특히 가열장치의 제작이 용이해지고, 비용을 절감하도록 한 스터링기기의 가열장치에 관한 것이다The present invention relates to a heating apparatus for a sterling apparatus, and more particularly, to a heating apparatus for a sterling apparatus to facilitate the manufacture of the heating apparatus and to reduce the cost.

일반적으로 스터링 기관은 밀폐된 용기내의 기체가 가열될 때는 압력이 상승되고, 냉각될 때는 압력이 저하되는 원리를 이용한 것으로, 제1도에 도에 도시한 바와 같이, 작동유체(Working Gas)가 압축실(1)로부터 냉각기 튜브(2)를 지나 재생기(3)를 통과하여 가열기 튜브(4)를 거쳐 팽창실(5)로 갈 때는 압력이 상승되어 상승된 압력이 동력피스톤(6)헤드에 작용되어 동력피스톤(6)을 하방으로 밀어내고, 역으로 팽창실(5)로부터 가열기 튜브(4), 재생기(3), 냉각기 튜브(2)를 통과하여 압축실(1)로 갈 때에는 작동유체는 냉각되어 압력이 떨어지게 되어 상기 동력피스토(6)은 상승되는 것이다.In general, a sterling engine uses a principle in which a pressure increases when a gas in a closed container is heated and a pressure decreases when cooled, and as shown in FIG. 1, a working gas is compressed. When the chamber 1 passes through the cooler tube 2, passes through the regenerator 3, and passes through the heater tube 4 to the expansion chamber 5, the pressure is increased so that the elevated pressure acts on the power piston 6 head. And pushes the power piston 6 downward, and conversely, when the fluid flows from the expansion chamber 5 through the heater tube 4, the regenerator 3 and the cooler tube 2 to the compression chamber 1, the working fluid As the pressure is reduced by cooling, the power piston 6 is raised.

따라서, 상기 작동유체를 반복적으로 가열하고 냉각시키기 위해 종래에는 연소로(8)에서 연료를 연소하여 상기 가열기튜브(4)에 작동유체를 가열하여 주었는 바, 상기 가열기 튜브(4)는 제2도에 도시한 바와 같이, 핀드 튜브(Finned Tube) 형태의 열교환기로 구성되어 실린더헤드(9)의 원주를 따라 각각의 튜브가 직경방향으로 내측 및 외측에 연동되어 팽창실(5)과 재생기(3)를 연결시켜 팽창실(5)과 재생기(3) 사이를 왕복유동하는 작동유체의 외부 즉, 연소로(8)로부터 열을 전달받게 된다.Therefore, in order to repeatedly heat and cool the working fluid, conventionally, the combustion fluid is combusted in the combustion furnace 8 to heat the working fluid to the heater tube 4, and the heater tube 4 is shown in FIG. As shown in the figure, it is composed of a heat exchanger in the form of a finned tube, and each tube along the circumference of the cylinder head 9 is interlocked inward and outward in the radial direction so as to expand the expansion chamber 5 and the regenerator 3. Is connected to receive heat from the outside of the working fluid reciprocating between the expansion chamber (5) and the regenerator (3), that is, the combustion furnace (8).

이와 같이 동작되는 스터링 기관의 가열장치는 핀드 튜브형으로 된 가열기튜브(4)를 실린더헤드(9)에 접합시켜 팽창실(5)과 재생기(3)에 연결시키기 위해서 상기 실린더헤드(9)에 각각의 핀을 용접 또는 브레이징(Brazing)으로 결합하였는바 상기 핀이 적게는 수십개에서 많게는 수백개에 이르는 많은 수이기 때문에 용접 및 브레이징시 누설 및 크랙으로 인한 불량이 발생할 확률이 높아지며, 제작기간이 길어지고, 비용이 상승되는문제점이 있었다.The heating apparatus of the stirling engine operated as described above is respectively connected to the cylinder head 9 in order to join the finned tube heater tube 4 to the cylinder head 9 and to connect it to the expansion chamber 5 and the regenerator 3. Of pins are welded or brazed, and the number of pins is small, ranging from tens to hundreds. However, there was a problem of rising costs.

이러한 문제점을 감안하여 안출한 본 발명의 목적은 가열장치의 제작이 용이해지고, 비용을 절감하려는 것이다.The object of the present invention devised in view of these problems is to facilitate the manufacture of a heating device, and to reduce costs.

상기한 바와 같은 본 발명의 목적을 달성하기 위하여, 일단이 막히 가열실린더의 외측에 슬리브를 결합하여, 상기 가열실린더와 슬리브 사이에 작동유체의 유로를 형성하여서 된 스터링기기의 가열장치가 제공된다.In order to achieve the object of the present invention as described above, there is provided a heating apparatus for a sterling apparatus, one end of which is coupled to the sleeve outside the heating cylinder, thereby forming a flow path of the working fluid between the heating cylinder and the sleeve.

이하 상기한 바와 같은 본 발명을 첨부도면에 도시한 일실시예에 의거하여 보다 상세히 설명한다.Hereinafter, the present invention as described above will be described in more detail on the basis of one embodiment shown in the accompanying drawings.

제3도는 본 발명에 의한 스터링기기의 가열장치가 설치된 스터링기기의 구성을 보인 단면도이고, 제4도 내지 제7도는 본 발명 장치를 도시한 것으로 제4도는 분해사시도, 제5도는 결합상태단면도, 제6도는 제4도의 A-A선 단면도, 제7도는 다른 실시예의 분해사시도로서, 이에 도시한 바와 같이, 본 발명에 의한 스터링기기의 가열장치는 일단이 막힌 가열실린더(10)의 외측에 슬리브(11)를 결합하여, 상기 가열실린더(10)와 슬리브(11)사이에 작동유체의 유로를 형성하여서 된 것이다.3 is a cross-sectional view showing the configuration of a Stirling device equipped with a heating device of the Stirling device according to the present invention, Figures 4 to 7 shows the device of the present invention, Figure 4 is an exploded perspective view, Figure 5 is a cross-sectional view of the coupling state, FIG. 6 is a cross-sectional view taken along line AA of FIG. 4, and FIG. 7 is an exploded perspective view of another embodiment. As shown in FIG. 6, the heating device of the Stirling apparatus according to the present invention has a sleeve 11 on the outside of the heating cylinder 10 whose one end is blocked. ) Is combined to form a flow path for the working fluid between the heating cylinder (10) and the sleeve (11).

즉, 팽창실(5)과 재생기(3)를 연결시키는 가열기 튜브의 역할을 대신하기 위해서 하부는 막히고, 상부는 뚫린 가열실린더(10)의 외주면에 길이방향으로 슬럿(Slot)가공에 의하여 다수개의 돌출부(10a)와 요입부(10b)를 원주방향으로 교호로 형성하고, 그 돌출부(10a)의 외주면에 그 내주면이 밀착되는 슬리브(11)를 압입시켜 상기 요입부(10b)와 슬리브(11)의 내주면 사이에 각각 작동유체의 유로가 되도록 구성하는 것이다.That is, in order to replace the role of the heater tube connecting the expansion chamber 5 and the regenerator 3, the lower part is blocked, and the upper part is formed by slot processing in the longitudinal direction on the outer circumferential surface of the heated cylinder 10. The protrusions 10a and the concave portions 10b are alternately formed in the circumferential direction, and the indentation portions 10b and the sleeve 11 are press-fitted into the outer circumferential surfaces of the protrusions 10a in close contact with the inner circumferential surfaces thereof. The inner circumferential surface of each of the working fluid to be configured to be a flow path.

상기 가열실린더(10)의 상단부 외주면에는 상기 슬리브(11)를 가열실린더(10)의 하부로부터 상부쪽으로 압입하였을 때 슬리브(11)의 산단이 걸려서 정지되는 플랜지부(12)를 형성하며, 상기 플랜지부(12)에도 슬럿 가공에 의하여 다수개의 돌출부(12a)와 요입부(12b)를 형성하여 그 요입부(12b)가 작동유체의 유로를 형성하도록 한다.On the outer circumferential surface of the upper end of the heating cylinder 10, when the sleeve 11 is pressed in from the lower portion of the heating cylinder 10 toward the upper side, a flange portion 12 is formed to stop by stopping the end of the sleeve 11, the plan A plurality of protrusions 12a and recesses 12b are also formed in the branch 12 by slotting, so that the recesses 12b form a flow path for the working fluid.

상기 요입부(12b)에 의한 작동유체 유로는 팽창공간(5)로부터 재생기(3)로의 유로중 상부 유로를 구성하는 것이다.The working fluid flow path by the concave portion 12b constitutes an upper flow path among the flow paths from the expansion space 5 to the regenerator 3.

또한 가열실린더(10) 자체가 하부로부터 작동유체의 압력을 받아 위로 힘을 받기 때문에 실린더 슬리브(13)에는 턱부(14)를 형성하여 상기 가열실린더(10)의 플랜지부(12)가 걸리도록 하고, 가열실린더(10)의 상단부와 실린더 슬리브(13)의 턱부(14)가 맞닿아 형성되는 원주경계면을 용접하여 결합한다.In addition, since the heating cylinder 10 itself is forced upward by the pressure of the working fluid from the lower portion, the jaw portion 14 is formed in the cylinder sleeve 13 so that the flange portion 12 of the heating cylinder 10 is caught. The upper end of the heating cylinder 10 and the jaw portion 14 of the cylinder sleeve 13 are joined to each other by welding the circumferential boundary formed.

상기 플랜지부(12)의 돌출부(12a)와 요입부(12b)는 상기 가열실린더(10)의 돌출부(10a)와 요입부(10b)와 동일선상에 위치하도록 되어 있으며, 상기 플랜지부(12)의 요입부(12b)가 접하고 있는 실린더 슬리브(13)에는 작동유체가 재생기(3)과 가열실린더(10)의 요입부(10b)에 의하여 형성되는 유로 사이를 왕복할 수 있도록 작동유체 통과공(15)을 형성한다.The protruding portion 12a and the concave portion 12b of the flange portion 12 are located on the same line as the protruding portion 10a and the concave portion 10b of the heating cylinder 10, and the flange portion 12 The working fluid passage hole allows the working fluid to reciprocate between the flow path formed by the regenerator 3 and the recessed part 10b of the heating cylinder 10 in the cylinder sleeve 13 in contact with the recessed part 12b of the 15).

제7도는 본 발명의 다른 실시례를 도시하는 것으로, 본 실시례에서는 상기 슬리브(11')의 내주면에 슬럿 가공에 의하여 다수개의 돌출부(11'a)와 요입부(11'b)를 원주방향으로 교호로 형성하고,슬럿 가공되지 않은 가열실린더(10')의 외주면과 상기 돌출부(11a')의 내주면이 밀착되도록하여 상기 요입부(11'b)와 가열실린더(10')의 외주면 사이에 작동유체 유로가 형성되도록 한 것이다.FIG. 7 shows another embodiment of the present invention. In this embodiment, a plurality of protrusions 11'a and recesses 11'b are circumferentially formed by slotting on the inner circumferential surface of the sleeve 11 '. Alternately formed between the outer peripheral surface of the recess 11'b and the heating cylinder 10 'such that the outer circumferential surface of the untreated slot cylinder 10' and the inner circumferential surface of the protrusion 11a 'are in close contact with each other. The working fluid flow path is formed.

한편, 상기 재생기(3)는 상기 작동유체 통과공(15)에 그 단부가 인접되도록 실린더 슬리브(13)의 외주면에 설치하며, 실린더 슬리브(13)의 벽면을 통해 유로형성 슬리브(11)로부터 재생기(3)로의 열전달을 막기 위해 슬리브(11)의 바깥 원주면에 열전단계수가 극히 낮은 재질로 구성된 단열슬리브(16)를 압입시킨다.On the other hand, the regenerator 3 is installed on the outer circumferential surface of the cylinder sleeve 13 so that the end thereof is adjacent to the working fluid passage hole 15, and the regenerator from the flow path forming sleeve 11 through the wall surface of the cylinder sleeve 13; In order to prevent heat transfer to (3), the heat insulating sleeve 16 made of a material having a very low thermoelectric step number is pressed into the outer circumferential surface of the sleeve 11.

상기 단열슬리브(16)는 양단부 사이의 공간부(17)를 형성하여 유로형성 슬리브(11)와 실린더 슬리브(13) 사이에 압입되었을 때, 각각의 슬리브와 개스단열층을 형성시켜 단열효과를 증대시킨다.When the heat insulating sleeve 16 forms a space 17 between both ends and is press-fitted between the flow path forming sleeve 11 and the cylinder sleeve 13, each of the sleeve and the gas heat insulating layer is formed to increase the heat insulating effect. .

이와 같이 구성되어진 가열기 구조에 의해 상기 가열실린더(10)의 내측에 가해지는 열은 가열실린더(10)의 슬럿부와 슬리브(11)가 형성한 유로를 통과하는 작동유체를 가열하게 된다.Heat applied to the inside of the heating cylinder 10 by the heater structure configured as described above heats the working fluid passing through the flow path formed by the slot portion and the sleeve 11 of the heating cylinder 10.

이상에서 설명한 바와 같이, 본 발명에 의한 스터링기기의 가열장치는 수 십 또는 수 백개의 가열기 튜브를 실린더헤드의 용접 또는 브레이징하는 대신에 가열실린더와 실린더 슬리브의 끝단들이 형성하는 원주경계면 만을 결합하기 때문에 불량이 감소되고, 제작기간이 단축되며, 비용이 절감되는 효과가 있다.As described above, the heating apparatus of the Stirling machine according to the present invention combines only the circumferential boundary surface formed by the ends of the cylinder and the cylinder sleeve instead of welding or brazing tens or hundreds of heater tubes. Defects are reduced, manufacturing time is shortened, and costs are reduced.

Claims (7)

일단이 막히 가열실린더의 외측에 슬리브를 결합하며, 상기 가열실린더의 외주면과 슬리브의 내주면 중 어느 한쪽에 슬럿 가공에 의한 다수개의 돌출부와 요입부를 원주방향으로 교호로 형성하여 상기 요입부에 의하여 작동유체 유로가 형성되도록 한 것을 특징으로 하는 스터링기기의 가열장치.One end closes the sleeve to the outside of the heating cylinder, a plurality of projections and recesses formed by slotting alternately in the circumferential direction on any one of the outer peripheral surface of the heating cylinder and the inner peripheral surface of the sleeve by the working inlet A heating device for a sterling device, characterized in that the flow path is formed. 제1항에 있어서, 상기 가열실린더의 상단부 외주면에는 상기 슬리브의 상단이 결려서 정지되는 플랜지부가 형성되며, 상기 플랜지부에는 슬럿 가공에 의하여 다수개의 돌출부와 요입부를 형성하여 그 요입부가 작동유체의 유로를 형성하도록 구성한 것을 특징으로 하는 스터링기기의 가열장치.According to claim 1, wherein the outer peripheral surface of the upper end of the heating cylinder is formed with a flange for stopping the upper end of the sleeve formed, the flange portion formed a plurality of projections and concave by slotting process, the concave portion is the flow path of the working fluid Heating device for a sterling apparatus, characterized in that configured to form. 제2항에 있어서, 상기 가열실린더의 돌출부는 실린더 슬리브의 턱부에 지지되어 고정된 것을 특징으로 하는 스터링기기의 가열장치.The heating apparatus of claim 2, wherein the protrusion of the heating cylinder is supported by and fixed to the jaw of the cylinder sleeve. 제2항에 있어서, 상기 가열실린더의 돌출부와 인접한 실린더 슬리브이 상단부에는 작동유체통과 공이 형성된 것을 특징으로 하는 스터링기기의 가열장치.3. The heating apparatus of claim 2, wherein the cylinder sleeve adjacent to the protrusion of the heating cylinder has a working fluid cylinder and a ball formed at an upper end thereof. 제4항에 있어서, 상기 실린더 슬리브의 작동유체통과공과 재생기 상단 위치가 같은 높이에 오도록 실린더 슬리브의 외측으로 재생기가 설치된 것을 특징으로 하는 스터링기기의 가열장치.5. The heating apparatus of claim 4, wherein a regenerator is installed outside the cylinder sleeve such that the working fluid through-hole of the cylinder sleeve and the regenerator top position are at the same height. 제1항에 있어서, 상기 가열실린더의 외측에 결합되는 슬리브의 외주면과 실린더 슬리브의 내주면 사이에 이들간의 열전도를 차단하기 위하여 열전달계수가 낮은 단열슬리브가 압입된 것을 특징으로 하는 스터링기기의 가열장치.The heating apparatus of claim 1, wherein an insulating sleeve having a low heat transfer coefficient is press-fitted between the outer circumferential surface of the sleeve coupled to the outside of the heating cylinder and the inner circumferential surface of the cylinder sleeve to block heat conduction therebetween. 제6항에 있어서, 상기 단열슬리브는 양단부 사이에 개스단열층이 형성되는 공간부가 형성된 것을 특징으로 하는 스터링기기의 가열장치.The heating apparatus of claim 6, wherein the heat insulating sleeve has a space portion in which a gas insulation layer is formed between both ends.
KR1019940000853A 1994-01-18 1994-01-18 Heating apparatus of stirling engine KR970009805B1 (en)

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