KR100394962B1 - Cryostat combined with helium gas refrigerator and continuos cooling refrigerator - Google Patents

Cryostat combined with helium gas refrigerator and continuos cooling refrigerator Download PDF

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KR100394962B1
KR100394962B1 KR10-2001-0019324A KR20010019324A KR100394962B1 KR 100394962 B1 KR100394962 B1 KR 100394962B1 KR 20010019324 A KR20010019324 A KR 20010019324A KR 100394962 B1 KR100394962 B1 KR 100394962B1
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helium gas
helium
low temperature
cylinder
liquid helium
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KR10-2001-0019324A
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Korean (ko)
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KR20020080122A (en
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강기훈
송창호
김용규
김기술
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한국표준과학연구원
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B9/00Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point
    • F25B9/002Compression machines, plants or systems, in which the refrigerant is air or other gas of low boiling point characterised by the refrigerant
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25BREFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
    • F25B2309/00Gas cycle refrigeration machines

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Compressors, Vaccum Pumps And Other Relevant Systems (AREA)

Abstract

본 발명은 헬륨가스냉동기 및 연속냉각냉동기가 결합된 저온항온조로서, 액체헬륨용기(28)와, 냉동압축기(39)가 연결된 헬륨가스냉동기(10)를 구비하고, 상기 헬륨가스냉동기(10)의 냉각부(17,18)에 각기 연결된 내,외측 복사차단통(20,21)과, 상기 내측 복사차단통(21)의 내부에 복사차단통(22)을 더 추가하고, 상기 복사차단통(20)의 둘레에 진공통(19)을 설치함과 동시에 이 진공통(19)에 접속된 복수의 진공연결관(13,14)과, 상기 액체헬륨통(28)내의 액체헬륨이 복사차단통(22,21)의 둘레를 순환하여 진공통(19)의 상부측 헬륨가스배출구(12)로 배출되도록 복사차단통 (22,21)의 둘레에 각기 권취된 액체헬륨공급라인(24,23)과, 상기 진공연결관(13, 14)에 연결된 진공펌프(32) 및 헬륨가스배출구(12)에 연결된 헬륨가스배출기(34)를 포함하여, 상기 액체헬륨통(28)내의 액체헬륨을 연속적으로 작동시키거나 또는 헬륨가스냉동기(40)를 작동시키는 것 중 선택적으로 어느 하나 또는 동시에 작동시켜 저온항 조절할 수 있도록 구성한 것을 특징으로 한다.The present invention is a low temperature thermostat combined with a helium gas cooler and a continuous chiller, comprising a helium gas cooler (10) connected to a liquid helium container (28) and a refrigeration compressor (39), and the helium gas cooler (10) of the In addition to the inner and outer radiation shielding cylinder (20, 21) connected to the cooling unit (17, 18), and the radiation shielding cylinder 22 inside the inner radiation shielding cylinder 21, and the radiation shielding cylinder ( A vacuum cylinder 19 is provided around the periphery 20, and a plurality of vacuum connection pipes 13 and 14 connected to the vacuum cylinder 19, and the liquid helium in the liquid helium cylinder 28, are radiation blocking cylinders. Liquid helium supply lines 24 and 23 respectively wound around the radiation shielding cylinders 22 and 21 so as to circulate around the 22 and 21 to be discharged to the upper helium gas outlet 12 of the vacuum chamber 19. And a helium gas discharger 34 connected to the helium gas discharge port 12 and a vacuum pump 32 connected to the vacuum connection pipes 13 and 14, and the liquid helium in the liquid helium container 28. It is characterized in that it is configured to operate at any one or at the same time to operate continuously or to operate the helium gas refrigerator 40, or to control the low temperature term.

Description

헬륨가스냉동기 및 연속냉각냉동기가 결합된 저온항온조{Cryostat combined with helium gas refrigerator and continuos cooling refrigerator}Cryostat combined with helium gas refrigerator and continuos cooling refrigerator}

본 발명은 헬륨가스냉동기 및 연속냉각냉동기가 결합된 저온항온조에 관한 것으로, 헬륨가스냉동기와 연속냉각냉동기를 각각 개별적으로 동작할 수 있고, 두 방식을 병행하여 작동할 수 있어 다양한 활용이 가능하여 편리성 및 효율성이 증대된 저온항온조에 관한 것이다.The present invention relates to a low temperature thermostat combined with a helium gas cooler and a continuous cooling freezer, helium gas cooler and a continuous cooling freezer can be operated individually, and can be operated in parallel to the two methods can be used for various applications A low temperature thermostat with increased performance and efficiency.

특히, 고가의 액체헬륨을 사용하지 않고 10K의 저온을 내릴 수 있는 헬륨가스냉동기와 적은 양의 액체헬륨으로 빠른 시간내에 4.2K 온도까지 내릴 수 있는 연속냉각냉동기를 결합하여 실온에서 극저온까지의 냉각 시간을 대폭 단축하고, 비용을 절감할 수 있는 저온항온조에 관한 것이다.Particularly, the cooling time from room temperature to cryogenic temperature is combined with a helium gas cooler that can lower 10K low temperature without using expensive liquid helium and a continuous chiller that can lower the temperature to 4.2K quickly with a small amount of liquid helium. It relates to a low temperature thermostat that can greatly reduce the cost and reduce the cost.

종래의 저온항온조 기술은, 도 1과 같이 냉동압축기(2)가 연결된 헬률가스냉동기(1)를 사용한 저온항온조와, 도 2와 같이 연속냉각냉동기(4)에 액체헬륨용기 (3)와 진공펌프(5)가 연결된 저온항온조와, 도 3과 같이 진공펌프(9)가 연결된 보온통(8)내에 액체질소(6)와 액체헬륨(7)을 저장하여 둔 담금형 저온항온조와 같이 3종류가 주류를 이루고 있다.Conventional low temperature thermostat technology is a low temperature thermostat using a helium gas cooler (1) connected to a refrigeration compressor (2) as shown in FIG. 1, and a liquid helium container (3) and a vacuum pump in a continuous chiller (4) as shown in FIG. Three kinds of liquor, such as a low temperature thermostat tank connected with (5), and a immersion low temperature thermostat chamber in which liquid nitrogen (6) and liquid helium (7) are stored in a thermostat container (8) to which a vacuum pump (9) is connected as shown in FIG. To achieve.

도 1의 저온항온조는 전원만 공급하면 고가의 액체헬륨을 사용하지 않고 온도를 통상 10K까지 내릴 수 있어서 저온실험에 따르는 비용이 저렴하여 경제적이다. 또한 전기장치로만 구성되어 있어서 다른 종류의 저온항온조와 달리 완전 자동화된 작동이 가능한 장점을 갖고 있다.The low temperature thermostat of FIG. 1 can lower the temperature to 10K without using expensive liquid helium by supplying power only, and thus it is economical due to low cost according to the low temperature experiment. In addition, it consists only of electrical devices, and unlike other types of low temperature thermostats, it has the advantage of being fully automated.

그러나 냉각 능력의 제한으로 적용 냉각 면적이 소형이고, 외부의 열 유입에 민감하여 냉각속도가 느리며 설정온도에서 장시간 안정을 유지하지 못하는 단점을 갖고 있다.However, due to the limitation of the cooling capacity, the applied cooling area is small, sensitive to external heat inflow, and thus has a slow cooling rate and does not maintain stability for a long time at a set temperature.

도 2의 저온항온조는 액체헬륨을 코일을 통하여 저온항온조 내부에 흘려주어 온도를 내릴 수 있는 장치이다. 이때 소량의 액체헬륨으로 빠른 시간에 온도를 내릴 수 있고, 도1의 저온항온조보다 훨씬 안정된 온도를 유지할 수 있다. 액체 헬륨을 일정량 균일하게 공급하기 위해서는 액체헬륨용기(3) 내의 액체헬륨 양의 변화에 맞춰 항상 감시하여야 한다.2 is a device that can lower the temperature by flowing the liquid helium inside the low temperature bath through the coil. At this time, a small amount of liquid helium can be quickly lowered temperature, it is possible to maintain a much more stable temperature than the low temperature bath of FIG. In order to uniformly supply a certain amount of liquid helium, the amount of liquid helium in the liquid helium container 3 must be monitored at all times.

따라서 이 장치는 자동으로 작동할 수 없고, 도 1의 장치에 비해 액체헬륨의 소모로 인하여 다소 비용이 많이 드는 단점을 갖고 있다.Therefore, this device cannot operate automatically and has a disadvantage that it is somewhat more expensive due to the consumption of liquid helium than the device of FIG. 1.

도 3의 저온항온조는 가장 오래전부터 사용되던 전통적인 저온항온조이다. 이 장치는 다량의 액체헬륨이 소모되고, 주변장치가 아주 복잡한 단점을 갖고 있다. 반면에 가장 안정된 온도를 유지할 수 있고, 온도를 빠르게 내릴 수 있는 장점을 갖고 있다.The low temperature bath of Figure 3 is a traditional low temperature bath that has been used for a long time. This device consumes a large amount of liquid helium, and the peripheral device has a very complicated disadvantage. On the other hand, it can maintain the most stable temperature and has the advantage of lowering the temperature quickly.

종래, 도 1,2,3의 저온항온조들 각각은 장점을 갖고 있지만 각 장점들이 합쳐진 즉, 적은 비용으로 빠르게 온도를 내려서 경제적이고, 안정된 온도를 유지할 수 있으며 일정 온도에 도달된 후부터 자동작동이 가능한 장치가 아직 없다.Conventionally, each of the low temperature thermostats of FIGS. 1,2 and 3 has advantages, but the advantages are combined, that is, economical and stable temperature can be maintained by rapidly lowering the temperature at a low cost and automatically operating after reaching a certain temperature. There is no device yet.

따라서 본 발명은 저온항온조를 작동시키는데 가장 큰 문제인 고가의 액체헬륨을 사용하는데 따른 과도한 비용으로 인한 경제성을 극복하는데 있다.Therefore, the present invention is to overcome the economics due to the excessive cost of using expensive liquid helium, which is the biggest problem in operating a low temperature thermostat.

도 3의 저온항온조는 전통적인 저온항조의 모델이지만 작동에 따른 비용이 크다. 도 1의 헬륨가스 냉동기를 사용한 저온항온조는 저온에 도달하는데 시간이 아주 많이 소요되며 온도 안정도가 아주 나쁘며 열 용량이 큰 열평형블록을 사용하는 실험에 적용하기에는 어려움이 많은 단점이 있다. 도 2의 연속냉각냉동기를 사용한 저온항온조는 자동으로 사용할 수 없다.The low temperature bath of Figure 3 is a model of a traditional low temperature bath but the cost of operation is high. The low temperature bath using the helium gas freezer of FIG. 1 takes a very long time to reach a low temperature, has a very bad temperature stability, and has a disadvantage in that it is difficult to apply to an experiment using a heat balance block having a large heat capacity. The low temperature bath using the continuous cooling freezer of FIG. 2 cannot be used automatically.

따라서 본 발명은 도 1과 도 2의 저온냉각장치를 결합한 저온항온조를 제작하여, 적은 비용으로 빠르게 저온에 도달할 수 있고, 저온도달 후 자동 작동이 가능함에 있다. 그 외에도 본 장치는 열 용량이 큰 실험에 사용할 수 있으며, 온도 안정도를 높일 수 있도록 함에 있다.Therefore, the present invention is to produce a low temperature thermostat combined with the low temperature cooling device of Figure 1 and Figure 2, it is possible to quickly reach a low temperature at a low cost, it is possible to automatically operate after reaching a low temperature. In addition, the device can be used for experiments with a large heat capacity and to increase the temperature stability.

따라서 본 발명은 작동시간이 단축되어 경제적이고, 자동작동이 가능하며, 효율적이며, 높은 온도 안정도로 인해 새로운 실험 기술에 적용할 수 있는 헬륨가스냉동기 및 연속냉각냉동기가 결합된 저온항온조를 제공하고자 한다.Therefore, the present invention aims to provide a low temperature thermostat combined with a helium gas cooler and a continuous cooling freezer, which can be applied to a new experimental technology due to the short time of operation, economical, automatic operation, efficient and high temperature stability. .

상기의 목적을 달성하기 위한 본 고안의 구체적인 수단은, 액체헬륨용기와, 냉동압축기가 연결된 헬륨가스냉동기를 구비하고, 상기 헬륨가스냉동기의 제1,2 냉각부에 각기 연결된 내,외측 복사차단통과, 상기 내측 복사차단통의 내부에 복사차단통을 더 추가하고, 상기 복사차단통의 둘레에 진공통을 설치함과 동시에 이 진공통에 접속된 복수의 진공연결관과, 상기 액체헬륨통내의 액체헬륨이 복사차단통의 둘레를 순환하여 진공통의 상부측 헬륨가스배출구로 배출되도록 복사차단통의 둘레에 각기 권취된 액체헬륨공급라인과, 상기 진공연결관에 연결된 진공펌프 및 헬륨가스배출구에 연결된 헬륨가스배출기를 포함하여, 상기 액체헬륨통내의 액체헬륨을연속적으로 작동시키거나 또는 헬륨가스냉동기를 작동시키는 것 중 선택적으로 어느 하나 또는 동시에 작동시켜 저온항 조절할 수 있도록 구성한 것을 특징으로 한다.Specific means of the present invention for achieving the above object, the liquid helium container, and a helium gas refrigerator connected to the refrigeration compressor, the inner and outer radiation shielding passages connected to the first and second cooling units of the helium gas refrigerator, respectively; And a plurality of radiation shielding cylinders inside the inner radiation shielding cylinder, a vacuum cylinder is installed around the radiation shielding cylinder, and a plurality of vacuum connection tubes connected to the vacuum shielding cylinder, and a liquid in the liquid helium cylinder. A liquid helium supply line wound around the radiation shield cylinder, and a vacuum pump and a helium gas outlet connected to the vacuum connection tube, respectively, so that helium circulates around the radiation shield cylinder and is discharged to the upper side of the vacuum cylinder outlet. Optional operation of continuously operating the liquid helium in the liquid helium container or operating the helium gas cooler, including a helium gas discharger; By operating at the same time it is characterized in that is configured to adjust anti-low temperature.

본 발명에 따르면, 상기 복사차단통의 각 내,외측면이 금으로 코팅되어 복사선의 반사능력을 증대시킨 것을 특징으로 한다.According to the present invention, the inner and outer surfaces of each of the radiation shielding tube is coated with gold, characterized in that to increase the reflectivity of the radiation.

본 발명에 따르면, 상기 복사차단통내에 온도를 감시할 수 있는 온도평형블록이 추가된 것을 특징으로 한다.According to the invention, it is characterized in that the temperature balance block is added to monitor the temperature in the radiation shield.

도 1은 종래 헬륨가스냉동기를 사용한 저온항온조의 개략적인 구성도.1 is a schematic diagram of a low temperature thermostat using a conventional helium gas refrigerator.

도 2는 종래 연속냉각냉동기를 사용한 저온항온조의 개략적인 구성도.Figure 2 is a schematic diagram of a low temperature thermostat using a conventional continuous chiller.

도 3은 종래 담금형 저온항온조의 개략적인 구성도.Figure 3 is a schematic configuration diagram of a conventional immersion-type low temperature thermostat.

도 4는 본 발명에 따른 헬륨가스냉동기와 연속냉각냉동기를 결합한 저온항온조의 구성도.Figure 4 is a block diagram of a low temperature thermostat combined helium gas cooler and a continuous cooling refrigerator according to the present invention.

도 5는 본 발명에 따른 헬륨가스냉동기와 연속냉각냉동기를 결합한 저온항온조를 작동하기 위한 보조장치의 개략적인 구성도.5 is a schematic configuration diagram of an auxiliary device for operating a low temperature thermostat combined with a helium gas cooler and a continuous chiller according to the present invention.

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

10 : 헬륨가스냉동기 11 : 액체헬륨주입구10 helium gas freezer 11 liquid helium inlet

12 : 헬륨가스배출구 13,14 : 진공연결관12: helium gas outlet 13,14: vacuum connection pipe

17,18 : 냉각부 19 : 진공통17,18: cooling unit 19: vacuum cylinder

20,21,22 : 복사차단통 23,24 : 헬륨공급라인20,21,22: Radiation block 23,24: Helium supply line

25 : 온도평형블록 29 : 액체헬륨용기25: Temperature balance block 29: Liquid helium container

32 : 진공펌프32: vacuum pump

이하, 첨부된 도면을 참조하여 본 발명의 일실시예를 상세히 설명한다.Hereinafter, with reference to the accompanying drawings will be described an embodiment of the present invention;

도 4는 본 발명의 일실시예에 따른 헬륨가스냉동기와 연속냉각냉동기를 결합한 저온항온조의 구성도이고, 도 5는 도 4의 저온항온조와 연결되는 보조장치의 구성도이다.Figure 4 is a schematic diagram of a low temperature thermostat combined helium gas cooler and a continuous chiller according to an embodiment of the present invention, Figure 5 is a schematic diagram of an auxiliary device connected to the low temperature thermostat of FIG.

도 4에서 도면부호 10은 헬륨가스냉동기이고, 연속냉각냉동은 액체헬륨용기 (29)내의 액체헬륨을 액체헬륨주입구(11)를 통해 주입하면, 액체헬륨공급라인(23, 24)을 순환하여 저온항온조 내부의 온도를 내려주고 헬륨가스배출구(12)를 통해 배출되게 되어 있다.In FIG. 4, reference numeral 10 denotes a helium gas freezer, and continuous cooling freezing is performed by injecting liquid helium in the liquid helium container 29 through the liquid helium inlet 11 to circulate the liquid helium supply lines 23 and 24 to obtain a low temperature. Lower the temperature inside the thermostat is to be discharged through the helium gas outlet (12).

연속냉각냉동기를 헬륨가스냉동기(40)와 결합하기 위해 저온항온조에 연결부 (15,16)가 추가로 설치되어 있다. 따라서 헬륨가스냉동기(10)가 작동되면 냉각부 (17)는 40K로 온도가 내려가고, 냉각부(18)는 10K까지 냉각이 가능하다.In order to combine the continuous chiller with the helium gas chiller 40, the connection part 15, 16 is additionally installed in the low temperature thermostat. Therefore, when the helium gas cooler 10 is operated, the cooling unit 17 decreases in temperature to 40K, and the cooling unit 18 can cool down to 10K.

이때 항온조 내부의 온도를 안정시켜야 할 중요부분인 온도평형블록(25)의열 용량이 크면 온도를 내리는데 수 십 시간 이상이 소요되고, 냉각된 후에도 온도의 안정도를 수 mK까지 유지하기가 어렵다. 이때의 온도안정도는 표준백금온도계 (26)로 측정할 수 있다.At this time, if the heat capacity of the temperature balance block 25, which is an important part to stabilize the temperature inside the thermostat, is large, it takes several decades to lower the temperature, and it is difficult to maintain the stability of the temperature to several mK even after cooling. The temperature stability at this time can be measured with a standard platinum thermometer (26).

높은 안정도가 필요하고 빠른 실험 진행이 요구되는 분야에서 헬륨가스냉동기(10) 만으로는 부족하다. 따라서 액체헬륨주입구(11)를 통해 용기(29)에 담긴 액체헬륨(28)을 흘려주면 도 3의 담금형 저온항온조 보다는 적은 양의 액체헬륨을 사용하여 수시간 안에 실온에서 4K 또는 5K 저온까지 쉽게 온도를 내려줄 수 있다.Helium gas refrigerator 10 alone is insufficient in a field requiring high stability and fast experiment progress. Therefore, when the liquid helium 28 contained in the container 29 flows through the liquid helium inlet 11, a smaller amount of liquid helium than the immersion cold bath shown in FIG. It can lower the temperature.

저온항온조의 외부와 내부는 진공통(19)으로 차단되어 있으며, 진공연결관 (14)에 연결된 진공펌프(32)로 저온항온조 내부의 공기를 빼서 대류로 인한 실내와 정온항온조 내부사이의 열교환을 최소화한다.The outside and the inside of the low temperature thermostat are blocked by the vacuum cylinder 19, and the vacuum pump 32 connected to the vacuum connection pipe 14 removes the air inside the low temperature thermostat to exchange heat between the room and the inside of the constant temperature thermostat due to convection. Minimize.

복사에 의한 열교환 또는 높은 실내온도에 기인하는 열유입을 최소화하기 위해 복사차단통(20,21,22)이 설치되어 있고, 복사차단통(20,21,22)의 안팎을 금으로 도금하여 복사선의 반사능력을 증대시켰다. 또한, 복사차단통(20,21)에 권취된 액체헬륨공급라인(23,24)은 온도가 높게 형성되어 있는 외부로부터의 열유입을 효과적으로 차단하여 온도평형블록(25)의 온도를 아주 안정시킬 수 있다.In order to minimize heat inflow due to heat exchange or high room temperature due to radiation, radiation shielding cylinders 20, 21, and 22 are installed. Increased the reflectivity of. In addition, the liquid helium supply lines 23 and 24 wound around the radiation shielding cylinders 20 and 21 effectively block heat inflow from the outside where the temperature is high to stabilize the temperature balance block 25 very well. Can be.

본 발명의 장치를 처음 가동하려면, 먼저 진공펌프(32)를 가동하여 저온항온조 내부의 공기를 모두 진공연결관(14)을 통해 배출시킨다.In order to operate the apparatus of the present invention for the first time, first, the vacuum pump 32 is started to exhaust all the air inside the low temperature thermostat through the vacuum connection pipe 14.

다음, 액체헬륨공급라인(30)을 사용하여 헬륨용기(29)에 들어있는 액체헬륨 (28)을 흘려주고 액체헬륨가스배출기(34)를 사용하여 헬륨가스를 배출시키면 저온항온조의 온도를 빠른 시간에 적은 양의 액체헬륨을 사용하여 내려줄 수 있다.Next, the liquid helium supply line 30 is used to flow the liquid helium 28 contained in the helium container 29 and the helium gas is discharged using the liquid helium gas discharger 34 to quickly cool the temperature of the low temperature bath. Can be lowered using a small amount of liquid helium.

다음, 냉동압축기(39)를 가동하여 정상적인 상태에 도달하면 액체헬륨공급라인(30)을 통해 공급해주던 액체헬륨을 차단하여 전기만으로 장치를 가동할 수 있다.Next, when the refrigeration compressor 39 is operated to reach a normal state, the device may be operated by electricity by cutting off the liquid helium supplied through the liquid helium supply line 30.

따라서 헬륨가스 냉동기만으로 수 십 시간 가동하여야 할 시간을 수 시간으로 대폭 단축할 수 있어서 경제적이고, 효율적이다. 한편, 본 장치가 갖는 최저 온도에 도달하면 온도조절기(35,36)를 사용하여 필요한 온도를 조절한다. 이때 안정된 온도 또는 저온물성자료를 온도측정장치(37,38)를 통해 얻을 수 있다.Therefore, the helium gas freezer alone can be drastically shortened to several hours to several hours, economical and efficient. On the other hand, when the minimum temperature of the device is reached, the temperature controllers 35 and 36 are used to adjust the required temperature. At this time, a stable temperature or low temperature material data can be obtained through the temperature measuring devices 37 and 38.

본 발명은 장치가 정상적으로 작동하기 위해 고진공유지가 필수적이다. 따라서 진공통(19)과 연결된 모든 부품 그리고 액체헬륨주입구(11), 헬륨가스배출구 (12)의 용접부위, 연결부(15,16) 및 진공연결관(13,14)이 진공조건에 충분히 만족되도록 설계 제작되어야 한다.In the present invention, the high quality common paper is essential for the device to operate normally. Therefore, all parts connected to the vacuum chamber 19 and the welded portion of the liquid helium inlet 11, the helium gas outlet 12, the connecting portions 15 and 16, and the vacuum connecting tubes 13 and 14 are sufficiently satisfied with the vacuum conditions. It must be designed and manufactured.

본 발명은 헬륨가스냉동기용 저온항온조와 연속냉각 저온항온조를 합쳐서 만든 저온항온조이므로 두 장치를 동시에 가동하여 실험할 수 있고, 두 장치 중 하나만 사용하여 작동할 수도 있다. 그리고 연속냉각 저온항온조를 먼저 가동하고 나중에는 헬륨가스냉동기용 저온항온조만 가동하여 최고의 저온도달 속도와 최저의 비용으로 가동이 가능하다. 따라서 4대의 저온항온장치를 한 대로 사용할 수 있는 다양한 응용과 변형이 가능하다. 도 4의 통(19,20,21)을 크기가 대폭 작아진 것으로 교체하면 헬륨가스냉동기의 전용의 저온항온조 형태로 변형이 가능하다.The present invention is a low temperature thermostat made by combining a low temperature thermostat for a helium gas cooler and a continuous cooling low temperature thermostat, so that the two devices can be operated simultaneously and can be experimented with. And it is possible to operate at the lowest temperature and the lowest cost by operating the continuous low temperature low temperature bath first and then only the low temperature low temperature bath for helium gas cooler. Therefore, various applications and modifications are possible in which four low temperature thermostats can be used as one. By replacing the cylinders 19, 20, and 21 of FIG. 4 with ones that are significantly smaller in size, the tanks 19, 20, and 21 may be transformed into a dedicated low temperature thermostat of the helium gas refrigerator.

상술한 바와 같이 본 발명에 따르면, 고가의 액체헬륨을 사용하지 않고, 전기만으로 작동할 수 있는 헬륨가스냉동기용 저온항온조와 소량의 액체헬륨을 사용하여 빠른 시간에 내려줄 수 있는 연속냉각 저온항온조를 합쳐서 제작되기 때문에 경제적이고, 냉각 시간이 절약되어 효율이 높은 이점을 갖는다.As described above, according to the present invention, a low-temperature bath for a helium gas refrigerator that can be operated only by electricity without using expensive liquid helium and a continuous cooling low-temperature bath that can be lowered in a short time using a small amount of liquid helium are provided. It is economical because it is manufactured together, and the cooling time is saved, and the efficiency is high.

Claims (3)

액체헬륨용기(28)와, 냉동압축기(39)가 연결된 헬륨가스냉동기(10)를 구비하고, 상기 헬륨가스냉동기(10)의 냉각부(17,18)에 각기 연결된 내,외측 복사차단통 (20,21)과, 상기 내측 복사차단통(21)의 내부에 복사차단통(22)을 더 추가하고, 상기 복사차단통(20)의 둘레에 진공통(19)을 설치함과 동시에 이 진공통(19)에 접속된 복수의 진공연결관(13,14)과, 상기 액체헬륨통(28)내의 액체헬륨이 복사차단통 (22,21)의 둘레를 순환하여 진공통(19)의 상부측 헬륨가스배출구(12)로 배출되도록 복사차단통(22,21)의 둘레에 각기 권취된 액체헬륨공급라인(24,23)과, 상기 진공연결관(13,14)에 연결된 진공펌프(32) 및 헬륨가스배출구(12)에 연결된 헬륨가스배출기(34)를 포함하여, 상기 액체헬륨통(28)내의 액체헬륨을 연속적으로 작동시키거나 또는 헬륨가스냉동기(40)를 작동시키는 것 중 선택적으로 어느 하나 또는 동시에 작동시켜 저온항 조절할 수 있도록 구성한 것을 특징으로 하는 헬륨가스냉동기 및 연속냉각냉동기가 결합된 저온항온조.An inner and outer radiation shielding cylinder having a helium gas cooler 10 connected to a liquid helium container 28 and a refrigeration compressor 39, and connected to cooling units 17 and 18 of the helium gas cooler 10, respectively. 20, 21 and the radiation shield cylinder 22 is further added to the inner radiation shield cylinder 21, and the vacuum cylinder 19 is installed around the radiation shield cylinder 20, and the binary The plurality of vacuum connecting pipes 13 and 14 connected to the common 19 and the liquid helium in the liquid helium cylinder 28 circulate around the radiation shielding cylinders 22 and 21 to form an upper portion of the vacuum cylinder 19. Liquid helium supply lines 24 and 23 respectively wound around the radiation shielding cylinders 22 and 21 so as to be discharged to the side helium gas outlet 12, and the vacuum pump 32 connected to the vacuum connection pipes 13 and 14; ) And a helium gas discharger (34) connected to the helium gas outlet 12, to continuously operate the liquid helium in the liquid helium barrel 28 or to operate the helium gas cooler (40) A low temperature thermostat combined with a helium gas cooler and a continuous cooling chiller, characterized in that it is configured to selectively control any one or simultaneously low temperature. 제 1항에 있어서,The method of claim 1, 상기 복사차단통(20,21,22)의 내,외측면이 금으로 코팅되어 복사선의 반사능력을 증대시킨 것을 특징으로 하는 헬륨가스냉동기 및 연속냉각냉동기가 결합된 저온항온조.The inner and outer surfaces of the radiation shielding cylinders (20, 21, 22) is coated with gold to increase the reflectivity of the radiation, helium gas chiller and continuous chiller combined low temperature bath. 제 1항에 있어서,The method of claim 1, 상기 복사차단통(22)내에 온도를 감시할 수 있는 온도평형블록(25)이 추가 된 것을 특징으로 하는 헬륨가스냉동기 및 연속냉각냉동기가 결합된 저온항온조.A low temperature thermostatic chamber combined with a helium gas cooler and a continuous cooling freezer, characterized in that the temperature balance block 25 is added to monitor the temperature in the radiation shielding barrel 22.
KR10-2001-0019324A 2001-04-11 2001-04-11 Cryostat combined with helium gas refrigerator and continuos cooling refrigerator KR100394962B1 (en)

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JPS54122449A (en) * 1978-02-17 1979-09-22 Fuorushiyungusu Unto Fueruzuts Cooler
JPS62228842A (en) * 1986-03-31 1987-10-07 株式会社東芝 Cryogenic device
JPH08240353A (en) * 1995-03-06 1996-09-17 Kobe Steel Ltd Cryostat and its operating method
JPH0979677A (en) * 1995-09-12 1997-03-28 Kobe Steel Ltd Pressurized ultra-flowing helium generating device

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Publication number Priority date Publication date Assignee Title
JPS54122449A (en) * 1978-02-17 1979-09-22 Fuorushiyungusu Unto Fueruzuts Cooler
JPS62228842A (en) * 1986-03-31 1987-10-07 株式会社東芝 Cryogenic device
JPH08240353A (en) * 1995-03-06 1996-09-17 Kobe Steel Ltd Cryostat and its operating method
JPH0979677A (en) * 1995-09-12 1997-03-28 Kobe Steel Ltd Pressurized ultra-flowing helium generating device

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