JP2008151489A - Carbon dioxide supercritical charging device - Google Patents

Carbon dioxide supercritical charging device Download PDF

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JP2008151489A
JP2008151489A JP2006342987A JP2006342987A JP2008151489A JP 2008151489 A JP2008151489 A JP 2008151489A JP 2006342987 A JP2006342987 A JP 2006342987A JP 2006342987 A JP2006342987 A JP 2006342987A JP 2008151489 A JP2008151489 A JP 2008151489A
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carbon dioxide
valve
refrigerant
filling
supercritical
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JP5024781B2 (en
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Toshiyuki Nagashima
利幸 長島
Naoya Yamagata
直也 山形
Nobuyasu Kumaki
宣靖 熊木
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TO OU KOGYO CO Ltd
TO-OU KOGYO CO Ltd
WATARI SHOKAI KK
Showa Denko Gas Products Co Ltd
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TO OU KOGYO CO Ltd
TO-OU KOGYO CO Ltd
WATARI SHOKAI KK
Showa Tansan Co Ltd
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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
    • F25B2309/00—Gas cycle refrigeration machines
    • F25B2309/06—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide
    • F25B2309/061—Compression machines, plants or systems characterised by the refrigerant being carbon dioxide with cycle highest pressure above the supercritical pressure

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  • Filling Or Discharging Of Gas Storage Vessels (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a carbon dioxide supercritical charging device capable of quantitatively charging carbon dioxide without being influenced by external environment. <P>SOLUTION: The carbon dioxide supercritical charging device is composed of a carbonic acid refrigerant supercritical circulating line in which a liquid tank, a liquid pressurizing pump, a buffer tank, a main valve, a heater, a flowmeter and a circulating valve are sequentially interposed; a carbon dioxide supply line for supplying carbon dioxide into the liquid tank from a carbon dioxide charging container through a liquid replenishing valve so that the amount of carbon dioxide in the liquid tank is a predetermined amount; and a refrigerant charging line comprising a carbon dioxide charging port in which a refrigerant charging valve connected to the carbonic acid refrigerant supercritical circulating line between the flowmeter and the circulating valve is interposed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は炭酸ガスを冷凍機等に充填する炭酸ガス超臨界充填装置に関する。   The present invention relates to a carbon dioxide supercritical filling apparatus that fills a refrigerator or the like with carbon dioxide.

従来、冷凍機等へＲ−２２、Ｒ１３４ａ等のフロン系の冷媒を充填する場合、液化冷媒に保って行なっている。
しかしながら、近年フロン系冷媒の規制により、冷媒として炭酸ガスを使用することが考えられているが、炭酸ガスは圧力や温度によって密度が大きく変化するため、定量充填が難しいという欠点があった。
特開２０００−２１８６４７ 特許第３０１２４８１号 Conventionally, when filling a refrigeration machine or the like with a fluorocarbon refrigerant such as R-22 and R134a, the refrigerant is kept in a liquefied refrigerant.
However, in recent years, it has been considered that carbon dioxide gas is used as the refrigerant due to the regulation of fluorocarbon refrigerants. However, since the density of carbon dioxide gas varies greatly depending on pressure and temperature, there is a drawback that quantitative filling is difficult.
JP 2000-218647 A Patent No. 3012481

本発明は以上のような従来の欠点に鑑み、外部環境に影響されることなく、炭酸ガスを定量充填することができる炭酸ガス超臨界充填装置を提供することを目的としている。     An object of the present invention is to provide a carbon dioxide supercritical filling apparatus capable of quantitatively filling carbon dioxide gas without being affected by the external environment in view of the above-described conventional drawbacks.

また、本発明は移動しながらの炭酸ガスの定量充填が可能な炭酸ガス超臨界充填装置を提供することを目的としている。     Another object of the present invention is to provide a carbon dioxide supercritical filling device capable of quantitative filling of carbon dioxide while moving.

本発明の前記ならびにそのほかの目的と新規な特徴は次の説明を添付図面と照らし合わせて読むと、より完全に明らかになるであろう。
ただし、図面はもっぱら解説のためのものであって、本発明の技術的範囲を限定するものではない。 The above and other objects and novel features of the present invention will become more fully apparent when the following description is read in conjunction with the accompanying drawings.
However, the drawings are for explanation only and do not limit the technical scope of the present invention.

上記目的を達成するために、本発明は液タンク、液加圧ポンプ、バッファータンク、メインバルブ、ヒータ、流量計、循環バルブが順次介装された炭酸冷媒超臨界循環路と、前記液タンクに炭酸ガス充填容器から液補充弁を介して、該液タンク内の炭酸ガス量が所定量となるように供給する炭酸ガス供給路と、前記流量計と循環バルブとの間の炭酸冷媒超臨界循環路に接続された冷媒充填弁が介装された炭酸ガス充填ポートを備える冷媒充填路とで炭酸ガス超臨界充填装置を構成している。 In order to achieve the above object, the present invention provides a liquid tank, a liquid pressurizing pump, a buffer tank, a main valve, a heater, a flow meter, a carbon dioxide refrigerant supercritical circuit in which a circulation valve is sequentially disposed, and the liquid tank. A carbon dioxide supply passage for supplying a predetermined amount of carbon dioxide in the liquid tank from a carbon dioxide filled container via a liquid replenishment valve, and a carbon dioxide refrigerant supercritical circulation between the flow meter and the circulation valve A carbon dioxide supercritical filling device is constituted by a refrigerant filling passage having a carbon dioxide filling port interposing a refrigerant filling valve connected to the passage.

本発明は液タンク、液加圧ポンプ、バッファータンク、メインバルブ、ヒータ、流量計、循環バルブが順次介装された炭酸冷媒超臨界循環路と、前記液タンクの液面計により炭酸ガス充填容器から液補充弁を介して、該液タンク内に供給される炭酸ガス量が所定量となるように供給される炭酸ガス供給路と、前記流量計と循環バルブとの間の炭酸冷媒超臨界循環路に接続された冷媒充填弁が介装された炭酸ガス充填ポートを備える冷媒充填路と、この冷媒充填路の冷媒充填弁の下流部位に真空引きバルブを介して真空ポンプに接続された真空引き路と、この真空引き路の真空引きバルブの上流に一端部が接続された残圧回収バルブ、回収ポンプ、残圧回収戻り弁を介装した前記液タンクに接続された一方の分岐路および、前記回収ポンプの下流より分岐されたチャージ残圧ブロー弁が介装された他方の分岐路とからなる残ガス回収路とで炭酸ガス超臨界充填装置を構成している。   The present invention relates to a carbon dioxide refrigerant superconducting circuit in which a liquid tank, a liquid pressurizing pump, a buffer tank, a main valve, a heater, a flow meter, and a circulation valve are sequentially disposed, and a carbon dioxide filled container by a liquid level gauge of the liquid tank. Through a liquid replenishment valve, a carbon dioxide supply path for supplying a predetermined amount of carbon dioxide gas into the liquid tank, and a carbon dioxide refrigerant supercritical circulation between the flow meter and the circulation valve A refrigerant filling passage having a carbon dioxide gas filling port interposing a refrigerant filling valve connected to the passage, and a vacuum drawing connected to a vacuum pump via a vacuum drawing valve at a downstream portion of the refrigerant filling valve of the refrigerant filling passage And one branch path connected to the liquid tank provided with a residual pressure recovery valve, a recovery pump, a residual pressure recovery return valve having one end connected upstream of the vacuum suction valve of the vacuum path, and Under the recovery pump Constitute a carbon dioxide supercritical filling device in the residual gas recovery path and consisting of the other branch path and a more branched charged residual pressure blow valve is interposed.

以上の説明から明らかなように、本発明にあっては次に列挙する効果が得られる。   As is clear from the above description, the present invention has the following effects.

（１）液タンク、液加圧ポンプ、バッファータンク、メインバルブ、ヒータ、流量計、循環バルブが順次介装された炭酸冷媒超臨界循環路と、前記液タンクに炭酸ガス充填容器から液補充弁を介して、該液タンク内の炭酸ガス量が所定量となるように供給する炭酸ガス供給路と、前記流量計と循環バルブとの間の炭酸冷媒超臨界循環路に接続された冷媒充填弁が介装された炭酸ガス充填ポートを備える冷媒充填路とで構成されているので、炭酸ガスを炭酸冷媒超臨界循環路で、超臨界にした状態や液相あるいは気相状態でも充填することができる。
したがって、定量の充填ができる。 (1) A liquid tank, a liquid pressurizing pump, a buffer tank, a main valve, a heater, a flow meter, and a carbon dioxide refrigerant supercritical circuit in which a circulation valve is sequentially disposed, and a liquid replenishment valve from the carbon dioxide filling container to the liquid tank And a refrigerant filling valve connected to a carbon dioxide refrigerant supercritical circulation path between the flow meter and the circulation valve, and a carbon dioxide supply path for supplying the carbon dioxide gas in the liquid tank to a predetermined amount It is composed of a refrigerant filling path having a carbon dioxide gas filling port interposing carbon dioxide, so that carbon dioxide can be charged in a supercritical circuit, in a supercritical state, in a liquid phase or in a gas phase state. it can.
Therefore, a fixed amount can be filled.

（２）前記（１）によって、炭酸冷媒超臨界循環路にバッファータンクとヒータを用いているので、外部環境に影響されるのを効率よく防止することができる。
したがって、定量での充填ができる。 (2) According to the above (1), the buffer tank and the heater are used in the carbon dioxide refrigerant supercritical circuit, so that it can be efficiently prevented from being influenced by the external environment.
Therefore, it can be filled in a fixed amount.

（３）請求項２も前記（１）、（２）と同様な作用効果が得られるとともに、真空引き路で冷媒充填路の不純物を効率よく除去して、高純度で定量充填することができる。
また、残ガス回収路によって効率よく残ガスを回収して、再使用することができる。 (3) The second aspect of the invention can obtain the same effects as the above (1) and (2), and can efficiently remove impurities in the refrigerant filling passage by a vacuum drawing passage and can be quantitatively filled with high purity. .
Further, the residual gas can be efficiently recovered and reused by the residual gas recovery path.

（４）また、請求項２は、冷媒充填路側の炭酸冷媒超臨界循環路を移動させて、充填作業を行なうことができる。
したがって、流れ作業での充填を行なうことができる。 (4) Further, according to the second aspect, the filling operation can be performed by moving the carbon dioxide refrigerant supercritical circuit on the refrigerant charging path side.
Therefore, filling in a flow operation can be performed.

以下、図面に示す本発明を実施するための最良の形態により、本発明を詳細に説明する。   Hereinafter, the present invention will be described in detail with reference to the best mode for carrying out the present invention shown in the drawings.

図１ないし図７に示す本発明を実施するための最良の第１の形態において、１は本発明の炭酸ガス超臨界充填装置で、この炭酸ガス超臨界充填装置１は液面計２、液タンク安全弁３、液タンク圧力センサー４が取付けられた液タンク５、液供給元弁６、逆止弁７、圧力計８、液加圧ポンプ９、移送ポンプシリンダーやバッファータンク１０、温度センサー１１、安全弁１２、フィルター１３、メインバルブ１４、トレースヒータ１５、流量計１６、温度センサー１７、循環バルブ１８、圧力計１９、圧力センサー２０、温度センサー２１、循環絞り弁２２が順次介装され、液タンク５内で液状態の炭酸を液加圧ポンプ９で加圧し、その後ヒータ１５にて加温し、１０ＭＰａ、４０℃の冷媒条件（超臨界状態）が成立するまで循環させる炭酸冷媒超臨界循環路２３と、前記液タンク５の液面計２によりボンベやタンク等の炭酸ガス充填容器２４から圧力計２５、開閉弁２６、ブロー弁２７、液補充弁２８、逆止弁２９を介して、前記炭酸ガス充填容器２４の炭酸ガスを液タンク５へ常時所定量となるように供給される炭酸ガス供給路３０と、前記炭酸冷媒超臨界循環路２３の流量計１６と循環バルブ１８との間に接続された冷媒充填弁３１、充填圧力センサー３２、充填温度センサー３３、充填スピード調整弁３４、充填温度センサー３５および炭酸ガス充填ポート３６が介装された冷媒充填路３７と、この冷媒充填路３７の冷媒充填弁３１と充填温度センサー３３との間に接続された真空引きバルブ３８、真空センサー３９、開閉弁４０が介装されて真空ポンプ４１に接続された真空引き路４２と、この真空引き路４２の開閉弁４０と真空ポンプ４１の間に接続された開閉弁４３と排気ポート４４が介装された排気路４５と、前記真空引き路４２の真空引きバルブ３８の上流に一端が接続された残圧回収バルブ４６、開閉弁４７、逆止弁４８、回収ポンプ４９、逆止弁５０、開閉弁５１、フィルター５２、残圧回収戻り弁５３を介装して前記液タンク５に接続された一方の分岐路５４および、開閉弁５１とフィルター５２との間に接続されチャージ残圧ブロー弁５５を介して炭酸ガス排気ポート５６へ接続された他方の分岐路５７とからなる残ガス回収路５８と、前記炭酸冷媒超臨界循環路２３の温度センサー２１と循環絞り弁２２との間より、前記残ガス回収路５８の炭酸ガス排気ポート５６に接続されたガスブロー弁５９を介装したガスブロー路６０とで構成されている。   In the first preferred embodiment for carrying out the present invention shown in FIG. 1 to FIG. 7, reference numeral 1 is a carbon dioxide supercritical filling apparatus according to the present invention. Tank safety valve 3, liquid tank 5 with liquid tank pressure sensor 4 attached, liquid supply source valve 6, check valve 7, pressure gauge 8, liquid pressurization pump 9, transfer pump cylinder or buffer tank 10, temperature sensor 11, A safety valve 12, a filter 13, a main valve 14, a trace heater 15, a flow meter 16, a temperature sensor 17, a circulation valve 18, a pressure gauge 19, a pressure sensor 20, a temperature sensor 21, and a circulation throttle valve 22 are sequentially provided, and a liquid tank. 5 is pressurized with a liquid pressurizing pump 9, then heated with a heater 15, and circulated until a refrigerant condition (supercritical state) of 10 MPa and 40 ° C. is established. The supercritical circuit 23 and the level gauge 2 of the liquid tank 5 are connected to a pressure gauge 25, an on-off valve 26, a blow valve 27, a liquid replenishing valve 28, and a check valve 29 from a carbon dioxide filled container 24 such as a cylinder or tank. Via the carbon dioxide gas supply passage 30 for supplying the carbon dioxide gas in the carbon dioxide gas filling container 24 to the liquid tank 5 at a predetermined amount at all times, the flow meter 16 and the circulation valve 18 in the carbon dioxide refrigerant supercritical circulation passage 23. A refrigerant filling valve 37, a filling pressure sensor 32, a filling temperature sensor 33, a filling speed adjustment valve 34, a filling temperature sensor 35, and a carbon dioxide filling port 36, which are connected between A vacuum pump 38, a vacuum sensor 39, and an open / close valve 40 connected between the refrigerant charging valve 31 and the charging temperature sensor 33 in the refrigerant charging passage 37 are connected to a vacuum pump 41. A suction path 42; an opening / closing valve 43 connected between the opening / closing valve 40 of the vacuum suction path 42 and the vacuum pump 41; an exhaust path 45 provided with an exhaust port 44; and a vacuum suction valve of the vacuum suction path 42 38 is provided with a residual pressure recovery valve 46, one end connected to the upstream of 38, an on-off valve 47, a check valve 48, a recovery pump 49, a check valve 50, an on-off valve 51, a filter 52, and a residual pressure recovery return valve 53. One branch path 54 connected to the liquid tank 5 and the other branch path connected between the on-off valve 51 and the filter 52 and connected to the carbon dioxide exhaust port 56 via the charge residual pressure blow valve 55. A gas blower connected to the carbon dioxide exhaust port 56 of the residual gas recovery path 58 from between the temperature sensor 21 and the circulation throttle valve 22 of the carbon dioxide refrigerant supercritical circulation path 23. Valve 5 9 and a gas blow path 60 interposed.

上記構成の炭酸ガス超臨界充填装置１は図２に示すように、液タンク５の液面計２により、内部の炭酸ガスが所定量より少ない場合には、炭酸ガス供給路３０の液補充弁２８を開放して液タンク５内に炭酸ガスを供給し、液タンク５内に所定量の炭酸ガスが供給されると液面計２により液補充弁２８を閉じて、常時液タンク５内に所定量の炭酸ガスが入った状態を保つ。
この場合、図３に示すように炭酸冷媒超臨界循環路２３のメインバルブ１４と循環バルブ１８は開放状態で、液加圧ポンプ９によって液状態の炭酸を加圧し、その後、トレースヒータ１５で加温し、１０ＭＰａ、４０℃の冷媒条件（超臨界状態）が成立するまで炭酸冷媒超臨界循環路２３を循環させる。 As shown in FIG. 2, the carbon dioxide supercritical filling apparatus 1 having the above-described configuration is configured such that the liquid level gauge 2 of the liquid tank 5 indicates that the liquid replenishing valve of the carbon dioxide gas supply passage 30 is used when the internal carbon dioxide gas is less than a predetermined amount. 28 is opened to supply carbon dioxide gas into the liquid tank 5. When a predetermined amount of carbon dioxide gas is supplied into the liquid tank 5, the liquid replenishing valve 28 is closed by the liquid level gauge 2, and the liquid tank 5 is always in the liquid tank 5. Keep a certain amount of carbon dioxide.
In this case, as shown in FIG. 3, the main valve 14 and the circulation valve 18 of the carbon dioxide refrigerant supercritical circuit 23 are open, and the liquid carbon dioxide is pressurized by the liquid pressurizing pump 9, and then added by the trace heater 15. The carbon dioxide refrigerant supercritical circuit 23 is circulated until a refrigerant condition (supercritical state) of 10 MPa and 40 ° C. is established.

炭酸冷媒超臨界循環路２３で超臨界状態になると、図４に示すように冷媒充填路３７の冷媒充填弁３１と残ガス回収路５８の残圧回収バルブ４６を閉じるとともに、排気路４５の開閉弁４３を閉じ、真空ポンプ４１を駆動させて冷媒充填路３７およびワーク６１（冷凍機）内を真空状態にする。
次に図５に示すように真空引き路４２の開閉弁４０を閉じ、真空センサー３９にてワーク６１内のリークチェックを行なう。 When the carbon dioxide refrigerant supercritical circuit 23 is in a supercritical state, the refrigerant filling valve 31 of the refrigerant filling passage 37 and the residual pressure recovery valve 46 of the residual gas recovery passage 58 are closed and the exhaust passage 45 is opened and closed as shown in FIG. The valve 43 is closed and the vacuum pump 41 is driven to bring the refrigerant filling path 37 and the work 61 (refrigerator) into a vacuum state.
Next, as shown in FIG. 5, the on-off valve 40 of the vacuum pulling path 42 is closed, and the leak in the work 61 is checked by the vacuum sensor 39.

リークチェックの完了後、図６に示すように真空引き路４２の真空引きバルブ３８を閉じるとともに、炭酸冷媒超臨界循環路２３の循環バルブ１８を閉じ、冷媒充填路３７の冷媒充填弁３１を開放することにより、炭酸冷媒超臨界循環路２３の超臨界の炭酸冷媒を冷媒充填路３７よりワーク６１へ充填する。
この充填中は流量計１６にて充填量を計測し、設定充填量に達した時点で充填完了する。 After completion of the leak check, as shown in FIG. 6, the evacuation valve 38 of the evacuation passage 42 is closed, the circulation valve 18 of the carbon dioxide refrigerant supercritical circulation passage 23 is closed, and the refrigerant filling valve 31 of the refrigerant filling passage 37 is opened. As a result, the supercritical carbon dioxide refrigerant in the carbon dioxide refrigerant supercritical circulation path 23 is filled into the work 61 from the refrigerant filling path 37.
During the filling, the filling amount is measured by the flow meter 16, and the filling is completed when the set filling amount is reached.

次に、図７に示すように冷媒充填路３７の冷媒充填弁３１を閉じ、ワークを閉じた後、残ガス回収路５８の残圧回収バルブ４６を開放するとともに、炭酸冷媒超臨界循環路２３のメインバルブ１４を閉じ、回収ポンプ４９を駆動させることにより、冷媒充填路３７内の残ガスを液タンク５内へ回収することができる。
なお、前記冷媒充填弁３１、充填スピード調整弁３４、真空引きバルブ３８、残圧回収バルブ４６は、これらを組み込んだチャ−ジングガンを用いることにより、より高精度な充填が得られる。
[発明を実施するための異なる形態] Next, as shown in FIG. 7, after the refrigerant filling valve 31 of the refrigerant filling passage 37 is closed and the workpiece is closed, the residual pressure recovery valve 46 of the residual gas recovery passage 58 is opened, and the carbonate refrigerant supercritical circulation passage 23 is opened. By closing the main valve 14 and driving the recovery pump 49, the residual gas in the refrigerant charging path 37 can be recovered into the liquid tank 5.
The refrigerant filling valve 31, the filling speed adjusting valve 34, the evacuation valve 38, and the residual pressure recovery valve 46 can be charged with higher accuracy by using a charging gun incorporating them.
[Different forms for carrying out the invention]

次に、図８ないし図１２に示す本発明を実施するための異なる形態につき説明する。なお、これらの本発明を実施するための異なる形態の説明に当って、前記本発明を実施するための最良の第１の形態と同一構成部分には同一符号を付して重複する説明を省略する。   Next, different modes for carrying out the present invention shown in FIGS. 8 to 12 will be described. In the description of these different modes for carrying out the present invention, the same components as those in the best mode for carrying out the present invention are designated by the same reference numerals and redundant description is omitted. To do.

図８に示す本発明を実施するための第２の形態において、前記本発明を実施するための最良の第１の形態と主に異なる点は、残ガス回収路を使用しない炭酸ガス超臨界充填装置１Ａにした点で、このように構成しても冷媒充填路３７が短い場合には、前記本発明を実施するための最良の第１の形態と同様な作用効果が得られる。   The second embodiment for carrying out the present invention shown in FIG. 8 is mainly different from the best first embodiment for carrying out the present invention in that carbon dioxide supercritical filling without using a residual gas recovery path Even in this configuration, when the refrigerant charging path 37 is short, the same effect as that of the best first embodiment for carrying out the present invention can be obtained even in this configuration.

図９ないし図１２に示す本発明を実施するための第３の形態において、前記本発明を実施するための第２の形態と主に異なる点は、コンベアー６２で移送されてくる自動車のエアコン等のワーク６１（冷凍機）に移送状態で充填できるように炭酸冷媒超臨界循環路２３の流量計１６と循環バルブ１８との間の循環路を可撓性パイプ材を用いてＵ字状に配置するとともに、該Ｕ字状部位の循環路２３ａに接続された冷媒充填路３７および真空引き路４２をを設置した台車６３を前記コンベアー６２に沿って移動できるように配置したガイドレール６４に移動可能に取り付けた点で、このように構成した炭酸ガス超臨界充填装置１Ｂにしても、前記本発明を実施するための第２の形態と同様な作用効果が得られるとともに、コンベアー６２でワーク６１を移動させながら充填を行なうことができる。
なお、トレースヒータ１５と流量計１６とを台車６３に持たせても同等の効果が得られる。 The third embodiment for carrying out the present invention shown in FIG. 9 to FIG. 12 is mainly different from the second embodiment for carrying out the present invention in that the air conditioner of the automobile transported by the conveyor 62, etc. A circulation path between the flow meter 16 and the circulation valve 18 of the carbon dioxide refrigerant supercritical circulation path 23 is arranged in a U-shape using a flexible pipe material so that the work 61 (refrigerator) can be filled in a transfer state. In addition, the carriage 63 provided with the refrigerant filling path 37 and the vacuum drawing path 42 connected to the circulation path 23a of the U-shaped portion can be moved to the guide rail 64 arranged so as to be movable along the conveyor 62. The carbon dioxide supercritical filling device 1B configured as described above can provide the same operation and effect as the second embodiment for carrying out the present invention, and the conveyor 62 can 61 can perform the filling while moving the.
Even if the trace heater 15 and the flow meter 16 are provided in the carriage 63, the same effect can be obtained.

本発明は炭酸ガスを冷凍機等へ充填する産業で利用される。   The present invention is used in the industry of filling carbon dioxide gas into a refrigerator or the like.

本発明を実施するための最良の第１の形態の概略説明図。BRIEF DESCRIPTION OF THE DRAWINGS The schematic explanatory drawing of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態の炭酸ガスの供給時の説明図。Explanatory drawing at the time of the supply of the carbon dioxide gas of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態の超臨界状態の循環の説明図。BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is an explanatory diagram of supercritical state circulation according to the first embodiment for carrying out the present invention; 本発明を実施するための最良の第１の形態の真空引きの説明図。Explanatory drawing of the evacuation of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態のリークチェックの説明図。Explanatory drawing of the leak check of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態の冷媒充填時の説明図。Explanatory drawing at the time of refrigerant | coolant filling of the best 1st form for implementing this invention. 本発明を実施するための最良の第１の形態の残ガス回収時の説明図。Explanatory drawing at the time of the residual gas collection | recovery of the best 1st form for implementing this invention. 本発明を実施するための第２の形態の概略説明図。Schematic explanatory drawing of the 2nd form for implementing this invention. 本発明を実施するための第３の形態の概略説明図。Schematic explanatory drawing of the 3rd form for implementing this invention. 本発明を実施するための第３の形態の要部平面図。The principal part top view of the 3rd form for carrying out the present invention. 本発明を実施するための第３の形態の要部正面図。The principal part front view of the 3rd form for carrying out the present invention. 本発明を実施するための第３の形態の台車の動作説明図。Explanatory drawing of operation | movement of the trolley | bogie of the 3rd form for implementing this invention.

符号の説明Explanation of symbols

１、１Ａ、１Ｂ：炭酸ガス超臨界充填装置、
２：液面計、 ３：液タンク安全弁、
４：液タンク圧力センサー、 ５：液タンク、
６：液供給元弁、 ７：逆止弁、
８：圧力計、 ９：液加圧ポンプ、
１０：バッファータンク、 １１：温度センサー、
１２：安全弁、 １３：フィルター、
１４：メインバルブ、 １５：トレースヒータ、
１６：流量計、 １７：温度センサー、
１８：循環バルブ、 １９：圧力計、
２０：圧力センサー、 ２１：温度センサー、
２２：循環絞り弁、 ２３：炭酸冷媒超臨界循環路、
２４：炭酸ガス充填容器、 ２５：圧力計、
２６：開閉弁、 ２７： ブロー弁、
２８：液補充弁、 ２９：逆止弁、
３０：炭酸ガス供給路、 ３１：冷媒充填弁、
３２：充填圧力センサー、 ３３：充填温度センサー、
３４：充填スピード調整弁、 ３５：充填温度センサー、
３６：炭酸ガス充填ポート、 ３７：冷媒充填路、
３８：真空引きバルブ、 ３９：真空センサー、
４０：開閉弁、 ４１：真空ポンプ、
４２：真空引き路、 ４３：開閉弁、
４４：排気ポート、 ４５：排気路、
４６：残圧回収バルブ、 ４７：開閉弁、
４８：逆止弁、 ４９：回収ポンプ、
５０：逆止弁、 ５１：開閉弁、
５２：フィルター、 ５３：残圧回収戻り弁、
５４：一方の分岐路、 ５５：チャージ残圧ブロー弁、
５６：炭酸ガス排気ポート、 ５７：他方の分岐路、
５８：残ガス回収路、 ５９：ガスブロー弁、
６０：ガスブロー路、 ６１：ワーク。 1, 1A, 1B: Carbon dioxide supercritical filling device,
2: Liquid level gauge, 3: Liquid tank safety valve,
4: Liquid tank pressure sensor, 5: Liquid tank,
6: Liquid supply source valve, 7: Check valve,
8: Pressure gauge, 9: Liquid pressurizing pump,
10: Buffer tank, 11: Temperature sensor,
12: Safety valve, 13: Filter,
14: Main valve, 15: Trace heater,
16: Flow meter, 17: Temperature sensor,
18: Circulating valve, 19: Pressure gauge,
20: Pressure sensor, 21: Temperature sensor,
22: Circulation throttle valve, 23: Carbon dioxide refrigerant supercritical circuit,
24: Carbon dioxide filled container, 25: Pressure gauge,
26: On-off valve, 27: Blow valve,
28: Liquid replenishment valve, 29: Check valve,
30: Carbon dioxide supply path, 31: Refrigerant filling valve,
32: Filling pressure sensor 33: Filling temperature sensor
34: Filling speed adjustment valve, 35: Filling temperature sensor,
36: Carbon dioxide filling port, 37: Refrigerant filling path,
38: Vacuum pulling valve, 39: Vacuum sensor,
40: open / close valve, 41: vacuum pump,
42: Vacuum drawing path, 43: On-off valve,
44: exhaust port, 45: exhaust path,
46: Residual pressure recovery valve, 47: Open / close valve,
48: Check valve, 49: Collection pump,
50: Check valve, 51: Open / close valve,
52: Filter, 53: Residual pressure recovery return valve,
54: One branch path, 55: Charge residual pressure blow valve,
56: Carbon dioxide exhaust port, 57: The other branch,
58: residual gas recovery path, 59: gas blow valve,
60: Gas blow path, 61: Workpiece.

Claims (2)

液タンク、液加圧ポンプ、バッファータンク、メインバルブ、ヒータ、流量計、循環バルブが順次介装された炭酸冷媒超臨界循環路と、前記液タンクに炭酸ガス充填容器から液補充弁を介して、該液タンク内の炭酸ガス量が所定量となるように供給する炭酸ガス供給路と、前記流量計と循環バルブとの間の炭酸冷媒超臨界循環路に接続された冷媒充填弁が介装された炭酸ガス充填ポートを備える冷媒充填路とからなることを特徴とする炭酸ガス超臨界充填装置。 Carbon dioxide refrigerant supercritical circuit with liquid tank, liquid pressurization pump, buffer tank, main valve, heater, flow meter, circulation valve sequentially installed, and carbon dioxide gas filled container to liquid tank through liquid replenishment valve A carbon dioxide gas supply passage for supplying the carbon dioxide gas in the liquid tank to a predetermined amount, and a refrigerant filling valve connected to a carbon dioxide refrigerant supercritical circulation passage between the flow meter and the circulation valve. A carbon dioxide supercritical filling apparatus comprising a refrigerant filling passage having a carbon dioxide gas filling port. 液タンク、液加圧ポンプ、バッファータンク、メインバルブ、ヒータ、流量計、循環バルブが順次介装された炭酸冷媒超臨界循環路と、前記液タンクの液面計により炭酸ガス充填容器から液補充弁を介して、該液タンク内に供給される炭酸ガス量が所定量となるように供給される炭酸ガス供給路と、前記流量計と循環バルブとの間の炭酸冷媒超臨界循環路に接続された冷媒充填弁が介装された炭酸ガス充填ポートを備える冷媒充填路と、この冷媒充填路の冷媒充填弁の下流部位に真空引きバルブを介して真空ポンプに接続された真空引き路と、この真空引き路の真空引きバルブの上流に一端部が接続された残圧回収バルブ、回収ポンプ、残圧回収戻り弁を介装した前記液タンクに接続された一方の分岐路および、前記回収ポンプの下流より分岐されたチャージ残圧ブロー弁が介装された他方の分岐路とからなる残ガス回収路とを備えることを特徴とする炭酸ガス超臨界充填装置。 Liquid tank, liquid pressurization pump, buffer tank, main valve, heater, flow meter, carbon dioxide refrigerant supercritical circuit with circulation valve and liquid level meter of the liquid tank to replenish the liquid from the carbon dioxide filling container Via a valve, connected to a carbon dioxide gas supply path supplied so that the amount of carbon dioxide gas supplied into the liquid tank becomes a predetermined amount, and a carbon dioxide refrigerant supercritical circuit between the flow meter and the circulation valve A refrigerant filling path provided with a carbon dioxide gas filling port in which the refrigerant filling valve is interposed, a vacuum drawing path connected to a vacuum pump via a vacuum drawing valve at a downstream portion of the refrigerant filling valve of the refrigerant filling path, A residual pressure recovery valve, one end of which is connected to the upstream side of the vacuum valve of the vacuum suction path, a recovery pump, one branch path connected to the liquid tank provided with a residual pressure recovery return valve, and the recovery pump Min from downstream Has been charged residual pressure blow valve carbon dioxide supercritical filling device, characterized in that it comprises a residual gas recovery path consisting of the the other branch path interposed.
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101558251B1 (en) * 2014-04-28 2015-10-13 (주)쿨뱅크 Refrigerant injection and collection apparatus
CN106989547A (en) * 2017-05-18 2017-07-28 绍兴西爱西尔数控科技有限公司 A kind of filling machine for being used to fill ultralow temperature refrigerant of the critical-temperature less than 50 DEG C

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101558251B1 (en) * 2014-04-28 2015-10-13 (주)쿨뱅크 Refrigerant injection and collection apparatus
CN106989547A (en) * 2017-05-18 2017-07-28 绍兴西爱西尔数控科技有限公司 A kind of filling machine for being used to fill ultralow temperature refrigerant of the critical-temperature less than 50 DEG C

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