JPH0552298A - Taking-out device for coolant gas for equipment - Google Patents
Taking-out device for coolant gas for equipmentInfo
- Publication number
- JPH0552298A JPH0552298A JP3236977A JP23697791A JPH0552298A JP H0552298 A JPH0552298 A JP H0552298A JP 3236977 A JP3236977 A JP 3236977A JP 23697791 A JP23697791 A JP 23697791A JP H0552298 A JPH0552298 A JP H0552298A
- Authority
- JP
- Japan
- Prior art keywords
- storage tank
- gas
- refrigerant
- heat exchanger
- refrigerant storage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D3/00—Devices using other cold materials; Devices using cold-storage bodies
- F25D3/10—Devices using other cold materials; Devices using cold-storage bodies using liquefied gases, e.g. liquid air
Landscapes
- Filling Or Discharging Of Gas Storage Vessels (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、超伝導磁石核磁気共鳴
装置等、極低温状態で使用する理科学機器に低温維持冷
媒として使用する液化ガスの液化及び低温ガスの取り出
し装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for liquefying liquefied gas and a device for extracting low-temperature gas, which is used as a low-temperature-maintaining refrigerant in scientific instruments such as superconducting magnet nuclear magnetic resonance apparatus used in cryogenic conditions.
【０００２】[0002]
【従来技術】超伝導磁石核磁気共鳴装置などでは、検出
感度を高めるために、液体ヘリウムを使用して試料収容
部を極低温状態にするのであるが、試料収容部と装置の
設置室とでは、３００Ｋもの温度差があることから液体
ヘリウムへの入熱量が多く、液体ヘリウムの消費量が格
段に多くなる。そこで、このような装置では、液体ヘリ
ウム槽の外部を液体窒素槽で囲繞し、液体ヘリウムへの
入熱量を制限するようにしてある。2. Description of the Related Art In a superconducting magnet nuclear magnetic resonance apparatus or the like, liquid helium is used to bring a sample storage portion into an extremely low temperature state in order to enhance detection sensitivity. Since there is a temperature difference of 300 K, the amount of heat input to liquid helium is large and the amount of liquid helium consumed is significantly large. Therefore, in such a device, the outside of the liquid helium tank is surrounded by a liquid nitrogen tank to limit the amount of heat input to the liquid helium.
【０００３】そして、液体ヘリウム槽を囲繞する状態に
配置した液体窒素槽に供給する液体窒素の生成装置は、
上端開口部から極低温冷凍機のコールドヘッドを突入さ
せた断熱容器内に空気分離装置やガスボンベ等のガス供
給源から窒素ガスを気体状態で注入し、コールドヘッド
に発生する冷熱を窒素ガスに作用させて液化するように
形成してあった。A liquid nitrogen generator for supplying liquid nitrogen to a liquid nitrogen tank arranged in a state of surrounding the liquid helium tank is
Nitrogen gas is injected in a gaseous state from a gas supply source such as an air separator or a gas cylinder into a heat insulating container into which the cold head of a cryogenic refrigerator is inserted from the top opening, and the cold heat generated in the cold head acts on the nitrogen gas It was formed so as to liquefy.
【０００４】[0004]
【発明が解決しようとする課題】ところが、従来の窒素
液化装置では、断熱容器内の低温窒素ガスを取り出して
使用する場合、断熱容器内の気相部から直接ガスを取り
出すようにしていた。このため、気相部での圧力の低下
を補うために、液相に電熱ヒータを浸漬し、ヒータ加熱
により液体窒素を気化し、７７Ｋ近くの低温窒素ガスを
供給していた、このためガスの取り出し量に対するガス
供給量が不足し、ガス取り出し量が不安定になるという
問題があった。本発明は、このような点に着目してなさ
れたもので、低温のガスを安定して供給することのでき
る冷媒用ガス取り出し装置を提供することを目的とす
る。However, in the conventional nitrogen liquefaction apparatus, when the low temperature nitrogen gas in the heat insulating container is taken out and used, the gas is taken out directly from the gas phase portion in the heat insulating container. For this reason, in order to compensate for the pressure drop in the gas phase, an electric heater was immersed in the liquid phase, the liquid nitrogen was vaporized by heating the heater, and low temperature nitrogen gas near 77K was supplied. There was a problem that the amount of gas supplied was insufficient with respect to the amount taken out and the amount taken out of gas became unstable. The present invention has been made in view of such a point, and an object thereof is to provide a gas extracting device for a refrigerant capable of stably supplying a low-temperature gas.
【０００５】[0005]
【課題を解決するための手段】上述の目的を達成するた
めに、本発明は、冷媒ガス供給源と冷媒貯蔵槽とを接続
する冷媒ガス供給路に流路切換弁を配置し、この流路切
換弁から導出した一方の冷媒ガス噴出管を冷媒貯蔵槽内
の上部に開口するとともに、他方の冷媒ガス供給管を冷
媒貯蔵槽内に配置した熱交換器の入り口ポートに接続
し、熱交換器の出口ポートに接続した低温ガス取出管を
冷媒貯蔵槽外に導出し、低温ガス取出管の始端部を冷媒
貯蔵槽内の気相部に開口したことを特徴としている。In order to achieve the above-mentioned object, the present invention has a flow passage switching valve disposed in a coolant gas supply passage connecting a coolant gas supply source and a coolant storage tank. One refrigerant gas ejection pipe led out from the switching valve is opened to the upper part in the refrigerant storage tank, and the other refrigerant gas supply pipe is connected to the inlet port of the heat exchanger arranged in the refrigerant storage tank, and the heat exchanger The low-temperature gas extraction pipe connected to the outlet port of is discharged to the outside of the refrigerant storage tank, and the starting end of the low-temperature gas extraction pipe is opened to the gas phase portion in the refrigerant storage tank.
【０００６】[0006]
【作用】本発明では、冷媒ガス供給源と冷媒貯蔵槽とを
接続する冷媒ガス供給路に流路切換弁を配置し、この流
路切換弁から導出した一方の冷媒ガス噴出管を冷媒貯蔵
槽内の上部に開口するとともに、他方の冷媒ガス供給管
を冷媒貯蔵槽内に配置した熱交換器の入り口ポートに接
続し、熱交換器の出口ポートに接続した低温ガス取出管
を冷媒貯蔵槽外に導出しているので、冷媒ガス供給管内
を流れて来た冷媒用ガスは気相内での熱交換により、冷
却されて低温ガス取出管から断熱容器外に取り出される
ことになる。しかも、低温ガス取出管の始端部を冷媒貯
蔵槽内の気相部に開口していることから、冷媒貯蔵槽内
気相部から窒素温度(７７Ｋ)の低温ガスが熱交換器で熱
交換されたガスとともに取り出されることになる。そし
て、冷媒貯蔵槽内では熱交換器からの入熱により、冷媒
貯蔵槽内に貯蔵されている液槽部からの気化が促進され
るから、気化速度が低下してガス供給量が減少すること
を抑制する。According to the present invention, a flow path switching valve is arranged in the refrigerant gas supply path connecting the refrigerant gas supply source and the refrigerant storage tank, and one of the refrigerant gas ejection pipes derived from this flow path switching valve is used as the refrigerant storage tank. Inside the refrigerant storage tank, connect the other refrigerant gas supply pipe to the inlet port of the heat exchanger located in the refrigerant storage tank, and connect the low temperature gas extraction pipe connected to the outlet port of the heat exchanger to the outside of the refrigerant storage tank. Therefore, the refrigerant gas flowing in the refrigerant gas supply pipe is cooled by the heat exchange in the gas phase and taken out from the low temperature gas take-out pipe to the outside of the heat insulating container. Moreover, since the starting end of the low temperature gas extraction pipe is opened to the gas phase part in the refrigerant storage tank, the low temperature gas of nitrogen temperature (77K) is heat-exchanged by the heat exchanger from the gas phase part in the refrigerant storage tank. Will be taken out with the gas. Then, in the refrigerant storage tank, heat input from the heat exchanger promotes vaporization from the liquid tank portion stored in the refrigerant storage tank, so that the vaporization rate decreases and the gas supply amount decreases. Suppress.
【０００７】[0007]
【実施例】図面は本発明の実施例を示す概略構成図であ
る。このガス液化兼低温ガス取出装置は、断熱容器で構
成した冷媒貯蔵槽(１)と、この冷媒貯蔵槽(１)の上端開
口部にコールドヘッド(２)を配置した極低温冷凍機(３)
と、冷媒貯蔵槽(１)に冷媒ガスを供給する分子篩炭分離
式窒素発生装置(４)と、冷媒貯蔵槽(１)内の上部に配置
した熱交換器(５)とで構成してある。なお、図中符号
(６)は極低温冷凍機(３)の圧縮機ユニットである。DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawings are schematic diagrams showing an embodiment of the present invention. This gas liquefaction and low temperature gas extraction device is a cryogenic refrigerator (3) in which a refrigerant storage tank (1) composed of an insulating container and a cold head (2) are arranged at the upper end opening of the refrigerant storage tank (1).
, A molecular sieve coal separation type nitrogen generator (4) for supplying a refrigerant gas to the refrigerant storage tank (1), and a heat exchanger (5) arranged in the upper portion of the refrigerant storage tank (1). .. In addition, reference numerals in the figure
(6) is a compressor unit of the cryogenic refrigerator (3).
【０００８】コールドヘッド(２)のコールドエンド(７)
は冷媒貯蔵槽(１)の上端開口部から冷媒貯蔵槽(１)内に
突入する状態で配置してある。そして、窒素発生装置
(４)から冷媒貯蔵槽(１)に窒素ガスを供給する冷媒ガス
供給路(８)には３方弁で形成した流路切換弁(９)が配置
してあり、この流路切換弁(９)から導出した一方の冷媒
ガス噴出管(10)を冷媒貯蔵槽(１)内の上部に開口すると
ともに、他方の冷媒ガス供給管(11)を前記熱交換器(５)
の入り口ポートに接続してある。Cold end (7) of cold head (2)
Are arranged so as to project into the refrigerant storage tank (1) from the upper end opening of the refrigerant storage tank (1). And the nitrogen generator
In the refrigerant gas supply path (8) for supplying the nitrogen gas from the refrigerant storage tank (1) from (4), a flow path switching valve (9) formed of a three-way valve is arranged. One of the refrigerant gas ejection pipes (10) derived from 9) is opened to the upper part in the refrigerant storage tank (1), and the other refrigerant gas supply pipe (11) is connected to the heat exchanger (5).
It is connected to the entrance port of.
【０００９】熱交換器(５)の出口ポートには低温ガス取
出管(12)が接続してあり、この低温ガス取出管(12)を冷
媒貯蔵槽(１)外に導出している。そして、冷媒貯蔵槽
(１)内の気相部に対応する低温ガス取出管(12)の始端部
に蒸発ガス吸い込み口(13)が開口させてある。冷媒貯蔵
槽(１)外の低温ガス取出管(12)は断熱材(14)で被覆して
保冷管に形成してあり、その冷媒貯蔵槽(１)からの取出
部分にオリフィス孔あるいは常開電磁弁で形成した流体
抵抗部(15)が配置してある。A low temperature gas extraction pipe (12) is connected to the outlet port of the heat exchanger (5), and the low temperature gas extraction pipe (12) is led out of the refrigerant storage tank (1). And the refrigerant storage tank
An evaporative gas suction port (13) is opened at the starting end of the low temperature gas extraction pipe (12) corresponding to the vapor phase part in (1). The low temperature gas extraction pipe (12) outside the refrigerant storage tank (1) is covered with a heat insulating material (14) to form a cold insulation pipe, and an orifice hole or a normally open portion is provided at the extraction portion from the refrigerant storage tank (1). A fluid resistance portion (15) formed by a solenoid valve is arranged.
【００１０】図中符号(16)は冷媒貯蔵槽(１)内でコール
ドヘッド(２)のシリンダ部及びコールドエンド(７)の外
周部分に配置した断熱材で、熱交換器(５)の熱交換部へ
のガス給排管部分をこの断熱材(16)を介して配置するこ
とによりコールドヘッド(２)で発生した冷熱がガス給排
部分に直接的に作用しないようにしてある。なお、符号
(17)は低温ガス取出管(12)に対応させて配置した温度調
整機構で、この温度調整機構(17)は温度指示調製器(18)
と、管路温度を検出する温度計(19)と、温度計(19)の上
流側に配置したヒータ(20)とで構成されている。また、
流路切換弁(９)から導出した冷媒ガス噴出管(10)には、
圧力計(21)、安全弁(22)、大気放出弁(23)が配置してあ
る。In the figure, reference numeral (16) is a heat insulating material arranged in the cylinder portion of the cold head (2) and the outer peripheral portion of the cold end (7) in the refrigerant storage tank (1), and the heat of the heat exchanger (5). By arranging the gas supply / exhaust pipe part to the exchange part via this heat insulating material (16), the cold heat generated in the cold head (2) does not directly act on the gas supply / exhaust part. The code
(17) is a temperature adjusting mechanism arranged corresponding to the low-temperature gas extraction pipe (12), and this temperature adjusting mechanism (17) is a temperature indicating adjuster (18).
And a heater (20) arranged upstream of the thermometer (19) for detecting the temperature of the conduit. Also,
In the refrigerant gas ejection pipe (10) derived from the flow path switching valve (9),
A pressure gauge (21), a safety valve (22), and an atmosphere release valve (23) are arranged.
【００１１】図２は本発明の別実施例を示し、これは、
窒素発生装置(４)と冷媒貯蔵槽(１)とを接続する冷媒ガ
ス供給路(８)中に配置した流路切換弁(９)から導出した
冷媒ガス供給路(11)をさらに２経路に分岐し、一方の分
岐管(24)を冷媒貯蔵槽(１)内の気相部に配置した第１熱
交換器(５)の入り口ポートに流路開閉弁(26)を介して接
続するとともに、他方の分岐管(27)を冷媒貯蔵槽(１)内
の液相部に配置した第２の熱交換器(28)の入り口ポート
に流路開閉弁(29)を介して接続してある。この場合、第
１熱交換器(５)は２２３Ｋ以上の中温度冷媒ガスの発生
器として作用し、熱交換器(28)は７７Ｋ以上の低温冷媒
ガスの発生器として作用することになる。FIG. 2 shows another embodiment of the invention, which is
The refrigerant gas supply passage (11) derived from the passage switching valve (9) arranged in the refrigerant gas supply passage (8) connecting the nitrogen generator (4) and the refrigerant storage tank (1) is further divided into two passages. While branching, one branch pipe (24) is connected to the inlet port of the first heat exchanger (5) arranged in the gas phase portion in the refrigerant storage tank (1) via the flow path opening / closing valve (26). , The other branch pipe (27) is connected to the inlet port of the second heat exchanger (28) arranged in the liquid phase portion in the refrigerant storage tank (1) via the flow path opening / closing valve (29) .. In this case, the first heat exchanger (5) acts as a medium temperature refrigerant gas generator of 223 K or more, and the heat exchanger (28) acts as a low temperature refrigerant gas generator of 77 K or more.
【００１２】そして、第２熱交換器(28)の出口ポートか
ら導出した出口管(30)は第１熱交換器(５)の出口ポート
からの出口管(31)と合流させて低温ガス取出管(12)に形
成してあり、冷媒貯蔵槽(１)内での合流部よりも下流側
で気相部に対応させて蒸発ガス吸い込み口(13)が開口さ
せてある。Then, the outlet pipe (30) led out from the outlet port of the second heat exchanger (28) is joined with the outlet pipe (31) from the outlet port of the first heat exchanger (5) to take out the low temperature gas. It is formed in the pipe (12), and the evaporative gas suction port (13) is opened corresponding to the gas phase portion on the downstream side of the confluence portion in the refrigerant storage tank (1).
【００１３】上述のように構成したガス液化兼低温ガス
取出装置では、極低温冷凍機(３)のコールドヘッド(７)
を配置してなる断熱容器製冷媒貯蔵槽(１)内に窒素発生
装置(４)で発生した窒素ガスを噴出させることにより、
窒素ガスを極低温冷凍機(３)での冷熱により液化させる
とともに、窒素ガスを冷媒貯蔵槽(１)内の気相部に配置
した熱交換器(５)あるいは液相部に配置した熱交換器(2
8)を介して取り出すようにしているから、液体窒素ある
いは気化窒素ガスが保有する冷熱と熱交換して低温の窒
素ガスとして取り出すことができる。In the gas liquefaction and low temperature gas extraction device constructed as described above, the cold head (7) of the cryogenic refrigerator (3) is used.
By injecting the nitrogen gas generated by the nitrogen generator (4) into the refrigerant storage tank (1) made of an insulated container in which
Nitrogen gas is liquefied by cold heat in the cryogenic refrigerator (3), and nitrogen gas is heat exchanger (5) located in the gas phase part of the refrigerant storage tank (1) or heat exchange located in the liquid phase part. Bowl (2
Since it is taken out through 8), it can be taken out as low-temperature nitrogen gas by exchanging heat with the cold heat of liquid nitrogen or vaporized nitrogen gas.
【００１４】しかも、熱交換器(５)からの低温ガス取出
管(12)に気化ガス吸込口(13)を冷媒貯蔵槽(１)の気相部
に対応させて開口しているので、気相部のガスを熱交換
器通過後の窒素ガスとともに貯蔵槽(１)外に取り出すこ
とかできる。この場合、熱交換器からの入熱量が気化熱
を補充することになるから、温度降下により気化速度が
低下して、ガスの取出量が減少することはなくなる。Moreover, since the vaporized gas suction port (13) is opened in the low temperature gas extraction pipe (12) from the heat exchanger (5) so as to correspond to the gas phase portion of the refrigerant storage tank (1), The gas in the phase part can be taken out of the storage tank (1) together with the nitrogen gas that has passed through the heat exchanger. In this case, since the amount of heat input from the heat exchanger supplements the heat of vaporization, the vaporization rate is lowered due to the temperature drop, and the amount of gas taken out is not reduced.
【００１５】[0015]
【発明の効果】本発明では、冷媒ガス供給源と冷媒貯蔵
槽とを接続する冷媒ガス供給路に流路切換弁を配置し、
この流路切換弁から導出した一方の冷媒ガス噴出管を冷
媒貯蔵槽内の上部に開口するとともに、他方の冷媒ガス
供給管を冷媒貯蔵槽内の気相部に配置した熱交換器の入
り口ポートに接続し、熱交換器の出口ポートに接続した
低温ガス取出管を冷媒貯蔵槽外に導出しているので、冷
媒ガス供給管内を流れて来た冷媒用ガスは冷媒貯蔵槽内
での熱交換により冷却されて低温ガスとなり、低温ガス
取出管から断熱容器外に取り出されることになる。これ
により、低温ガスの供給を安定して行うことができる。According to the present invention, the flow path switching valve is arranged in the refrigerant gas supply path connecting the refrigerant gas supply source and the refrigerant storage tank,
An inlet port of a heat exchanger in which one of the refrigerant gas ejection pipes derived from this flow path switching valve is opened in the upper part of the refrigerant storage tank and the other refrigerant gas supply pipe is arranged in the gas phase portion of the refrigerant storage tank. Since the low temperature gas extraction pipe connected to the outlet port of the heat exchanger is led out of the refrigerant storage tank, the refrigerant gas flowing in the refrigerant gas supply pipe exchanges heat in the refrigerant storage tank. Is cooled to become low-temperature gas and is taken out of the heat insulating container through the low-temperature gas extraction pipe. Thereby, the low temperature gas can be stably supplied.
【００１６】しかも、低温ガス取出管の始端部を冷媒貯
蔵槽内の気相部に開口していることから、冷媒貯蔵槽内
気相部から窒素温度(７７Ｋ)の低温ガスが熱交換器で熱
交換されたガスとともに取り出されることになる。そし
て、冷媒貯蔵槽内では熱交換器からの入熱により、冷媒
貯蔵槽内に貯蔵されている液槽部からの気化が促進され
るから、気化速度が低下してガス供給量が減少すること
を抑制することができる。Moreover, since the starting end of the low temperature gas extraction pipe is opened to the vapor phase portion in the refrigerant storage tank, the low temperature gas of nitrogen temperature (77K) is transferred from the vapor phase portion in the refrigerant storage tank to the heat exchanger. It will be taken out together with the heat-exchanged gas. Then, in the refrigerant storage tank, heat input from the heat exchanger promotes vaporization from the liquid tank portion stored in the refrigerant storage tank, so that the vaporization rate decreases and the gas supply amount decreases. Can be suppressed.
【図１】第１実施例の概略構成図である。FIG. 1 is a schematic configuration diagram of a first embodiment.
【図２】第２実施例の概略構成図である。FIG. 2 is a schematic configuration diagram of a second embodiment.
１…冷媒貯蔵槽、 ２…コールド
ヘッド、３…極低温冷凍機、 ４…
冷媒ガス供給源、５・28…熱交換器、 ８…冷媒ガス
供給路、９…流路切換弁、 10…
冷媒ガス噴出管、11…冷媒ガス供給管、
12…低温ガス取出管、24・27…分岐供給管。1 ... Refrigerant storage tank, 2 ... Cold head, 3 ... Cryogenic refrigerator, 4 ...
Refrigerant gas supply source, 5/28 ... Heat exchanger, 8 ... Refrigerant gas supply path, 9 ... Flow path switching valve, 10 ...
Refrigerant gas ejection pipe, 11 ... Refrigerant gas supply pipe,
12 ... Low temperature gas extraction pipe, 24/27 ... Branch supply pipe.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 菅崎 幸也 滋賀県守山市勝部町1095番地 イワタニプ ランテツク株式会社滋賀工場内 (72)発明者 鐘江 剛 滋賀県守山市勝部町1095番地 イワタニプ ランテツク株式会社滋賀工場部内 (72)発明者 川口 悦治 滋賀県守山市勝部町1095番地 イワタニプ ランテツク株式会社滋賀工場内 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yukiya Sugazaki 1095 Katsube-cho, Moriyama-shi, Shiga Iwataniprantekku Co., Ltd.Shiga Plant (72) Inventor Go Kanae 1095, Katsube-cho, Moriyama-shi, Shiga Iwataniprantekku Shiga Inside the plant department (72) Inventor Etsuji Kawaguchi 1095 Katsube-cho, Moriyama city, Shiga prefecture Iwataniprantekku Co., Ltd. Inside the Shiga plant
Claims (2)
端開口部から極低温冷凍機(３)のコールドヘッド(２)を
冷媒貯蔵槽(１)内に突入する状態で配置し、この冷媒貯
蔵槽(１)に冷媒ガス供給源(４)からの冷媒ガスを気体状
態で注入し、コールドヘッド(２)からの冷熱で冷媒ガス
を液化させるように構成したガス液化自動供給装置にお
いて、 冷媒ガス供給源(４)と冷媒貯蔵槽(１)とを接続する冷媒
ガス供給路(８)に流路切換弁(９)を配置し、この流路切
換弁(９)から導出した一方の冷媒ガス噴出管(10)を冷媒
貯蔵槽(１)内の上部に開口するとともに、他方の冷媒ガ
ス供給管(11)を冷媒貯蔵槽(１)内の気相部に配置した熱
交換器(５)の入り口ポートに接続し、熱交換器(５)の出
口ポートに接続した低温ガス取出管(12)を冷媒貯蔵槽
(１)外に導出し、低温ガス取出管(12)の始端部を冷媒貯
蔵槽(１)内の気相部に開口したことを特徴とする機器冷
却用冷媒ガス取出装置。1. A cold head (2) of a cryogenic refrigerator (3) is arranged so as to project into the refrigerant storage tank (1) from an upper end opening of the refrigerant storage tank (1) formed of an insulating container. In the automatic gas liquefaction supply device configured to inject the refrigerant gas from the refrigerant gas supply source (4) in a gaseous state into this refrigerant storage tank (1) and liquefy the refrigerant gas by the cold heat from the cold head (2) , A flow path switching valve (9) is arranged in a refrigerant gas supply path (8) that connects the refrigerant gas supply source (4) and the refrigerant storage tank (1), and one of the flow path switching valve (9) is led out. The heat exchanger in which the refrigerant gas ejection pipe (10) is opened to the upper part in the refrigerant storage tank (1) and the other refrigerant gas supply pipe (11) is arranged in the gas phase part in the refrigerant storage tank (1). Connect the low temperature gas extraction pipe (12) connected to the inlet port of (5) and the outlet port of the heat exchanger (5) to the refrigerant storage tank.
(1) A refrigerant gas extraction device for equipment cooling, characterized in that the low temperature gas extraction pipe (12) is led out to the outside and a starting end portion is opened to a gas phase portion in the refrigerant storage tank (1).
給管(11)をさらに分岐し、一方の分岐供給管(24)を冷媒
貯蔵槽(１)内の気相部に配置した第１の熱交換器(５)の
入り口ポートに接続するとともに、他方の分岐供給管(2
7)を冷媒貯蔵槽(１)の液相部に配置した第２の熱交換器
(28)の入り口ポートに接続し、第２の熱交換器(28)の出
口ポートを第１の熱交換器(５)の出口ポートに合流させ
て低温ガス取出管(12)に接続し、低温ガス取出管(12)の
始端部を冷媒貯蔵槽(１)内の気相部に開口したことを特
徴とする機器冷却用冷媒ガス取出装置。2. The refrigerant gas supply pipe (11) derived from the flow path switching valve (9) is further branched, and one branch supply pipe (24) is arranged in the gas phase portion in the refrigerant storage tank (1). While being connected to the inlet port of the first heat exchanger (5), the other branch supply pipe (2
Second heat exchanger in which 7) is arranged in the liquid phase part of the refrigerant storage tank (1)
Connected to the inlet port of (28), the outlet port of the second heat exchanger (28) is joined to the outlet port of the first heat exchanger (5) and connected to the low temperature gas extraction pipe (12), A refrigerant gas extraction device for equipment cooling, characterized in that a starting end of a low temperature gas extraction pipe (12) is opened to a gas phase portion in a refrigerant storage tank (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3236977A JPH0796920B2 (en) | 1991-08-23 | 1991-08-23 | Refrigerant gas extraction device for equipment cooling |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3236977A JPH0796920B2 (en) | 1991-08-23 | 1991-08-23 | Refrigerant gas extraction device for equipment cooling |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0552298A true JPH0552298A (en) | 1993-03-02 |
| JPH0796920B2 JPH0796920B2 (en) | 1995-10-18 |
Family
ID=17008568
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3236977A Expired - Fee Related JPH0796920B2 (en) | 1991-08-23 | 1991-08-23 | Refrigerant gas extraction device for equipment cooling |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0796920B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1376033A3 (en) * | 2002-06-28 | 2005-08-03 | Sanyo Electric Co., Ltd. | Preserving system |
| US7108896B2 (en) | 2002-06-28 | 2006-09-19 | Dainippon Ink And Chemicals, Inc. | Method of increasing helical twisting power, optically active compound, liquid crystal compostion containing the same, and liquid crystal display device |
| US7251949B2 (en) | 2004-02-09 | 2007-08-07 | Sanyo Electric Co., Ltd. | Refrigerant system |
-
1991
- 1991-08-23 JP JP3236977A patent/JPH0796920B2/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1376033A3 (en) * | 2002-06-28 | 2005-08-03 | Sanyo Electric Co., Ltd. | Preserving system |
| US7108896B2 (en) | 2002-06-28 | 2006-09-19 | Dainippon Ink And Chemicals, Inc. | Method of increasing helical twisting power, optically active compound, liquid crystal compostion containing the same, and liquid crystal display device |
| CN100417877C (en) * | 2002-06-28 | 2008-09-10 | 三洋电机株式会社 | Storing system |
| US7251949B2 (en) | 2004-02-09 | 2007-08-07 | Sanyo Electric Co., Ltd. | Refrigerant system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0796920B2 (en) | 1995-10-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100467934C (en) | Reduction of cryogen loss during transportation of cryostats | |
| CN105324601A (en) | Device for cooling a consumer with a super-cooled liquid in a cooling circuit | |
| RU2002118598A (en) | CRYOGENIC REFRIGERATOR INSTALLATION AND METHOD INCLUDING SHORT-TERM COOLING IN AN OPEN CYCLE FOR A SUPERCONDUCTIVE WINDING OF EXCITATION | |
| EP3260801A1 (en) | System and method for improving the liquefaction rate in cryocooler-based cryogen gas liquefiers | |
| CN1847716A (en) | Recondensing service neck for cryostat | |
| CN1080389A (en) | The method and apparatus of cooling | |
| JPS60218561A (en) | Method and device for defrosting evaporator | |
| JPH0552298A (en) | Taking-out device for coolant gas for equipment | |
| US20100236260A1 (en) | Undercooled horizontal cryostat configuration | |
| WO2019132657A1 (en) | Sampling device and method for sampling a cryogenic fluid for measuring at least one property | |
| JPH07243712A (en) | Liquid helium supplementing apparatus for cryostat | |
| Delruelle et al. | The helium cryogenic system for the ATLAS experiment | |
| GB1433727A (en) | Method for reducing fluid losses from a cryostat | |
| CN207529745U (en) | A kind of cryogenic media diversion pipe for cryogenic system uniform decrease in temperature | |
| CN207529746U (en) | One kind is for cryogenic system cooling plug-in woven hose | |
| JPH09113052A (en) | Freezer | |
| JP2003086418A (en) | Cryogenic device | |
| WO2007001432A2 (en) | Hydrogen cooling system for superconducting equipment | |
| JPS60178260A (en) | Cryogenic refrigerator | |
| Bai et al. | Current leads cooling for the series-connected hybrid magnets | |
| Sarkar et al. | Integrated cryogenic fluid flow distribution and cooling scheme with helium liquefier/refrigerator for SST-1 magnet system | |
| JP2691389B2 (en) | Method and apparatus for recovering fluorine-based gas | |
| JP3069470U (en) | Piping structure of liquefied natural gas vaporization equipment | |
| Canavan et al. | A 13 T-1.8 K NbTi laboratory test coil | |
| RU2011129C1 (en) | Magnetic suspension vehicle cryostat |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |