JPH06341737A - Refrigerant regenerator - Google Patents
Refrigerant regeneratorInfo
- Publication number
- JPH06341737A JPH06341737A JP5151347A JP15134793A JPH06341737A JP H06341737 A JPH06341737 A JP H06341737A JP 5151347 A JP5151347 A JP 5151347A JP 15134793 A JP15134793 A JP 15134793A JP H06341737 A JPH06341737 A JP H06341737A
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- hydrochloric acid
- regenerator
- oil
- moisture
- 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.)
- Pending
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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2345/00—Details for charging or discharging refrigerants; Service stations therefor
- F25B2345/002—Collecting refrigerant from a cycle
Landscapes
- Gas Separation By Absorption (AREA)
- Drying Of Gases (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は，エアコン等の冷凍サイ
クルから回収した冷媒中に含まれる油その他の異物を除
去する冷媒再生装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerant regenerator for removing oil and other foreign matter contained in a refrigerant recovered from a refrigeration cycle such as an air conditioner.
【０００２】[0002]
【従来技術】エアコン等の冷媒を再生して再利用するた
めには，冷媒に含まれる油，水などの異物を取り除く必
要がある。従来の冷媒再生装置９０は，図３に示すよう
に，被回収冷凍サイクル８０から冷媒回収装置７０に至
る冷媒回収経路９１に介設され，油分離器９２と濾過器
９３と吸湿器９４とを単一の容器９５に収容したもので
ある（特開平４−１６９７６５号公報参照）。2. Description of the Related Art In order to regenerate and reuse a refrigerant such as an air conditioner, it is necessary to remove foreign substances such as oil and water contained in the refrigerant. As shown in FIG. 3, the conventional refrigerant regenerator 90 is provided in a refrigerant recovery path 91 from the recovery refrigeration cycle 80 to the refrigerant recovery apparatus 70, and includes an oil separator 92, a filter 93, and a moisture absorber 94. It is housed in a single container 95 (see Japanese Patent Laid-Open No. 4-169765).
【０００３】上記油分離器９２においては，油を蒸留分
離し，濾過器９３においては，フィルタにより油滴と共
に塵埃を除去する。そして，吸湿器９４においては吸湿
剤９４１によって水分が除去される。In the oil separator 92, oil is distilled and separated, and in the filter 93, dust is removed together with oil drops by a filter. Then, in the moisture absorber 94, the moisture is removed by the moisture absorbent 941.
【０００４】[0004]
【解決しようとする課題】しかしながら，従来の冷媒再
生装置９０には，次のような問題がある。即ち，従来の
冷媒再生装置９０には，冷媒の分解等によって生ずる塩
酸を捕捉する手段を有していない。冷媒，例えばＣＣｌ
2 Ｆ2 などから生ずる塩酸成分は，金属を腐食させるか
ら，これらは再生処理時に除去することが必要である。However, the conventional refrigerant regenerator 90 has the following problems. That is, the conventional refrigerant regenerator 90 has no means for capturing hydrochloric acid generated by decomposition of the refrigerant or the like. Refrigerant, eg CCl
Hydrochloric acid components generated from 2 F 2 etc. corrode metals, so it is necessary to remove them during the regeneration process.
【０００５】カーエアコンなどに用いられる冷媒Ｒ１２
（ＣＣｌ2 Ｆ2 ）は，水又はオイル（Ｒ−ＣＨ2 −ＣＨ
3 ）と反応し，次に示す化学式により塩化水素を発生す
る。 ＣＣｌ2 Ｆ2 ＋２Ｈ2 Ｏ→２ＨＣｌ＋２ＨＦ＋ＣＯ2 ＣＣｌ2 Ｆ2 ＋Ｒ−ＣＨ2 −ＣＨ3 →Ｒ−ＣＨ＝ＣＨ2
＋ＨＣｌ＋ＣＨＣｌＦ2 Refrigerant R12 used for car air conditioners, etc.
(CCl 2 F 2 ) is water or oil (R-CH 2 -CH
It reacts with 3 ) to generate hydrogen chloride according to the following chemical formula. CCl 2 F 2 + 2H 2 O → 2HCl + 2HF + CO 2 CCl 2 F 2 + R-CH 2 -CH 3 → R-CH = CH 2
+ HCl + CHClF 2
【０００６】このようにして発生した塩化水素は，次式
によりアルミニウム部品を腐食させる弊害がある。 Ａｌ＋３ＨＣｌ→ＡｌＣｌ3 ＋３／２Ｈ2 ＡｌＣｌ3 ＋３Ｈ2 Ｏ→Ａｌ（ＯＨ）3 ＋３ＨＣｌ 上記のように，塩化水素は水の存在化でアルミニウムの
腐食反応を繰り返す。本発明は，上記従来装置の問題点
に鑑みて，油や水分等の除去に加えて冷媒中に含まれる
塩酸成分を除去することができる冷媒再生装置を提供し
ようとするものである。The hydrogen chloride thus generated has a harmful effect of corroding aluminum parts according to the following equation. Al + 3HCl → AlCl 3 + 3 / 2H 2 AlCl 3 + 3H 2 O → Al (OH) 3 + 3HCl As described above, hydrogen chloride repeats the corrosion reaction of aluminum in the presence of water. In view of the above problems of the conventional device, the present invention aims to provide a refrigerant regenerator capable of removing the hydrochloric acid component contained in the refrigerant in addition to removing oil and water.
【０００７】[0007]
【課題の解決手段】本発明は，被回収冷凍サイクルか
ら，冷媒回収装置に至る冷媒回収経路に介装された冷媒
再生装置であって，上記冷媒再生装置は，冷媒中の油を
除去する油分離器と，塵埃等を除去する濾過器と，水分
を除去する吸湿器と，冷媒中の塩酸成分を除去する塩酸
捕捉装置とを有することを特徴とする冷媒再生装置にあ
る。The present invention relates to a refrigerant regenerator installed in a refrigerant recovery path from a recovery refrigeration cycle to a refrigerant recovery apparatus, wherein the refrigerant regenerator removes oil in the refrigerant. A refrigerant regenerator characterized by having a separator, a filter for removing dust and the like, a moisture absorber for removing water, and a hydrochloric acid capturing device for removing a hydrochloric acid component in the refrigerant.
【０００８】本発明において最も注目すべきことは，冷
媒再生装置に冷媒中の塩酸成分を除去する塩酸捕捉装置
を設けたことである。塩酸捕捉装置は，例えば，塩酸捕
捉剤を乾燥剤に飽和吸着させた捕捉材料を用いることに
より実現することができる。そして，上記捕捉材料は，
油分離器の下流側に配設することが好ましい。What is most noticeable in the present invention is that the refrigerant regenerator is provided with a hydrochloric acid capturing device for removing the hydrochloric acid component in the refrigerant. The hydrochloric acid capturing device can be realized, for example, by using a capturing material in which a hydrochloric acid capturing agent is saturated and adsorbed with a desiccant. And the above capture material is
It is preferably arranged downstream of the oil separator.
【０００９】油分離器の下流に配設すれば，捕捉材料が
油で被われることがないから，塩酸の捕捉性能が低下す
ることがなく，また，塩酸捕捉剤は乾燥剤に吸着させて
あるから，冷媒の流動と共に飛散する恐れがなく安定し
た塩酸捕捉が可能となるからである。なお，塩酸捕捉剤
としては，グリシジルエーテル型エポキシ化合物や，エ
ポキシ化脂肪酸モノエステルの化合物などがある。When it is arranged downstream of the oil separator, the trapping material is not covered with oil, so that the hydrochloric acid trapping performance is not deteriorated, and the hydrochloric acid trapping agent is adsorbed by the desiccant. Therefore, stable hydrochloric acid capture is possible without the risk of splashing as the refrigerant flows. The hydrochloric acid scavengers include glycidyl ether type epoxy compounds and epoxidized fatty acid monoester compounds.
【００１０】また，請求項３記載のように，塩酸捕捉剤
を乾燥剤に飽和吸着させた捕捉材料と水分を除去する吸
湿剤とを混合充填した吸湿捕捉器をもって上記吸湿器と
塩酸捕捉装置に置換することもできる。上記塩酸の捕捉
材料と吸湿剤とを混合充填混在させれば，塩酸と水分と
を同時に除去することができるからである。According to a third aspect of the present invention, the hygroscopic trap and the hydrochloric acid trap are equipped with a hygroscopic trap in which a trapping material in which a hydrochloric acid trap is adsorbed saturated with a desiccant and a hygroscopic agent for removing water are mixed and filled. It can be replaced. This is because if the scavenger for hydrochloric acid and the hygroscopic agent are mixed and mixed together, hydrochloric acid and water can be removed at the same time.
【００１１】[0011]
【作用及び効果】本発明の冷媒再生装置は，油分離器，
濾過器，吸湿器の他に塩酸捕捉装置を有しているから，
冷媒に含まれる塩酸成分を捕捉，除去することができ
る。従って，再生された冷媒には，塩酸の含有量は極め
て少ないので，金属腐食を生じ難い。上記のように，本
発明によれば，油や水分等の除去に加えて，冷媒中に含
まれる塩酸成分を除去することができる冷媒再生装置を
提供することができる。The operation and effect of the refrigerant regenerator of the present invention is as follows:
Since it has a hydrochloric acid trap in addition to the filter and the moisture absorber,
The hydrochloric acid component contained in the refrigerant can be captured and removed. Therefore, the recycled refrigerant contains very little hydrochloric acid and is less likely to cause metal corrosion. As described above, according to the present invention, it is possible to provide a refrigerant regenerator capable of removing the hydrochloric acid component contained in the refrigerant in addition to the removal of oil and water.
【００１２】また，請求項３記載のように吸湿材料と塩
酸の捕捉材料とを混合充填した吸湿捕捉器を油分離器及
び濾過器と共に用いても同様の効果を得ることができ
る。Further, the same effect can be obtained by using the moisture absorption trap in which the moisture absorption material and the hydrochloric acid trapping material are mixed and filled as described in claim 3 together with the oil separator and the filter.
【００１３】[0013]
【実施例】 実施例１ 本発明の実施例にかかる冷媒再生装置につき，図１を用
いて説明する。本例の冷媒再生装置は，車両用のエアコ
ン装置に用いられるものである。本例は，図１に示すよ
うに，被回収冷凍サイクル８０から，冷媒回収装置７０
に至る冷媒回収経路５０に介装された冷媒再生装置１０
である。Embodiment 1 A refrigerant regenerator according to an embodiment of the present invention will be described with reference to FIG. The refrigerant regeneration device of this example is used in an air conditioner device for a vehicle. In this example, as shown in FIG.
Refrigerant Regeneration Device 10 Installed in Refrigerant Recovery Path 50
Is.
【００１４】冷媒再生装置１０は，冷媒中の油を分離す
る油分離器１６と，塵埃等を除去する濾過器１７と，水
分を除去する吸湿器１８と，冷媒中の塩酸成分を除去す
る塩酸捕捉装置３０とを有する。塩酸捕捉装置３０は，
塩酸捕捉剤を乾燥剤に飽和吸収させた捕捉材料３５を有
しており，油分離器１６の下流側に配設してある。The refrigerant regenerator 10 comprises an oil separator 16 for separating oil in the refrigerant, a filter 17 for removing dust and the like, a moisture absorber 18 for removing water, and hydrochloric acid for removing hydrochloric acid component in the refrigerant. And a capture device 30. The hydrochloric acid trap 30 is
It has a scavenging material 35 in which a desiccant saturatedly absorbs a hydrochloric acid scavenger, and is disposed downstream of the oil separator 16.
【００１５】以下それぞれについて詳説する。本例の冷
媒再生装置１０は，被回収冷凍サイクル８０から冷媒回
収装置７０に至る冷媒回収経路５０に介設される。被回
収冷凍サイクル８０は，車両用のエアコン装置であり，
冷媒圧縮機８４，冷媒凝縮器８５，レシーバ８６，減圧
装置８７，エバポレータ８８を有し，これらを循環パイ
プ８９により環状に接続したものである。Each of these will be described in detail below. The refrigerant regeneration device 10 of the present example is provided in a refrigerant recovery path 50 from the recovery refrigeration cycle 80 to the refrigerant recovery device 70. The recovery refrigeration cycle 80 is an air conditioner device for a vehicle,
It has a refrigerant compressor 84, a refrigerant condenser 85, a receiver 86, a pressure reducing device 87, and an evaporator 88, and these are connected in an annular shape by a circulation pipe 89.
【００１６】一方，冷媒回収装置７０は，コンデンサ７
１と，該コンデンサ７１を冷却するための冷却器７２
と，回収した冷媒８１を蓄えるための回収タンク７３よ
りなる。冷媒８１が，冷媒回収装置７０内において凝縮
回収されるため，冷媒回収装置７０の内部の圧力が低下
する。そのため，被回収冷凍サイクル８０との間に圧力
差を生じ，冷媒８１は被回収冷凍サイクル８０から冷媒
回収装置７０に向かって流出する。On the other hand, the refrigerant recovery device 70 includes a condenser 7
1 and a cooler 72 for cooling the condenser 71
And a recovery tank 73 for storing the recovered refrigerant 81. Since the refrigerant 81 is condensed and recovered in the refrigerant recovery device 70, the pressure inside the refrigerant recovery device 70 decreases. Therefore, a pressure difference is generated between the recovered refrigeration cycle 80 and the refrigerant 81 flows out from the recovered refrigeration cycle 80 toward the refrigerant recovery device 70.
【００１７】冷媒再生装置１０は，冷媒８１の流入口１
３及び流出口１４を有する円筒状のメイン容器１５と，
該メイン容器１５よりも下流に配設された塩酸捕捉装置
３０とを有する。メイン容器１５には，冷媒中に含まれ
る油を分離するための蒸留式の油分離器１６，不規則な
金属ワイヤ等で構成されたフィルタ１７１を有する濾過
器１７，フェルト状の濾材１８１，１８２および吸湿剤
１８３を有する吸湿器１８などが収容されている。The refrigerant regenerator 10 has an inlet 1 for the refrigerant 81.
3 and a cylindrical main container 15 having an outlet 14;
A hydrochloric acid capturing device 30 is provided downstream of the main container 15. In the main container 15, a distillation-type oil separator 16 for separating oil contained in the refrigerant, a filter 17 having a filter 171 composed of irregular metal wires, felt-like filter media 181, 182. A hygroscopic device 18 having a hygroscopic agent 183 is housed.
【００１８】メイン容器１５は，底部に排油口２１が形
成された筒体２２と，この筒体２２の上端部に溶接など
により固定されたフランジ２３と，該フランジ２３にＯ
リング２４を介して気密にねじ止めされた蓋２５とを有
する。The main container 15 has a cylindrical body 22 having an oil drain port 21 formed at the bottom, a flange 23 fixed to the upper end of the cylindrical body 22 by welding or the like, and an O on the flange 23.
And a lid 25 that is hermetically screwed through a ring 24.
【００１９】排油口２１には，逆止弁２６および常閉の
電磁弁２７を備えた排油パイプ２８を介して，油溜め容
器２９が接続されている。流入口１３は，筒体２２の側
面下部に設けられ，第１回収ホース５０１を経て被回収
冷凍サイクル８０の冷媒圧縮機８４等に設けられている
サービスバルブに接続されている。An oil sump container 29 is connected to the oil drain port 21 via an oil drain pipe 28 having a check valve 26 and a normally closed electromagnetic valve 27. The inflow port 13 is provided in the lower portion of the side surface of the tubular body 22, and is connected to a service valve provided in the refrigerant compressor 84 and the like of the recovery refrigeration cycle 80 via the first recovery hose 501.
【００２０】流出口１４は，フランジ２３の側面に設け
られ第２回収ホース５０２によって，塩酸捕捉装置３０
に接続されている。第１，第２回収ホース５０１，５０
２には，それぞれ冷媒８１の逆流を防止するための逆止
弁５２，５３が設けられている。The outflow port 14 is provided on the side surface of the flange 23, and the hydrochloric acid trap 30
It is connected to the. First and second recovery hoses 501, 50
The check valves 52 and 53 for preventing the reverse flow of the refrigerant 81 are provided in the unit 2, respectively.
【００２１】フェルト状の濾材１８１，１８２及び吸湿
剤１８３は，底部に複数の小穴が形成された内筒１９に
収容されて，フィルタ１７１の上方に配置されている。
上記吸湿剤１８３は，モレキュラーシーブス等，冷媒中
の水分を吸収する素材により形成されている。また，濾
剤１８１，１８２は，吸湿剤１８３を上下両方向から挟
み込むように，吸湿剤１８３の下側と上側とに配設され
ている。The felt-shaped filter media 181 and 182 and the hygroscopic agent 183 are housed in the inner cylinder 19 having a plurality of small holes at the bottom and are arranged above the filter 171.
The moisture absorbent 183 is made of a material such as molecular sieves that absorbs water in the refrigerant. Further, the filtering agents 181 and 182 are arranged below and above the hygroscopic agent 183 so as to sandwich the hygroscopic agent 183 from both upper and lower directions.
【００２２】内筒１９は，上端外周部がフランジ２３の
内周端部に係止されており，上端開口部が複数の小穴を
有する押さえ板１９１によって塞がれている。そして，
押さえ板１９１と蓋２５との間に配設されたスプリング
２０に押圧されることにより保持されている。なお，上
記メイン容器１５を構成する筒体２２，その他の各構成
部材は，アルミニウム又はステンレス鋼のような耐蝕性
材料によって形成されている。The inner cylinder 19 has its upper end outer peripheral portion locked to the inner peripheral end portion of the flange 23, and its upper end opening portion is closed by a pressing plate 191 having a plurality of small holes. And
It is held by being pressed by the spring 20 arranged between the pressing plate 191 and the lid 25. The cylindrical body 22 and the other constituent members of the main container 15 are made of a corrosion resistant material such as aluminum or stainless steel.
【００２３】一方，塩酸捕捉装置３０は，図１に示すよ
うに，容器３１と容器３１に収納された塩酸捕捉用の捕
捉材料３５とを有する。容器３１は，上部に設けた冷媒
取入口３１１が第２回収ホース５０２を経て，メイン容
器１５の流出口１４と接続されており，底部に設けた冷
媒取出口３１２は，第３回収ホース５０３を経て冷媒回
収装置７０と接続されている。On the other hand, the hydrochloric acid capturing device 30 has a container 31 and a capturing material 35 for capturing hydrochloric acid contained in the container 31, as shown in FIG. The container 31 has a refrigerant inlet 311 provided at the top connected to the outlet 14 of the main container 15 via the second recovery hose 502, and a refrigerant outlet 312 provided at the bottom has a third recovery hose 503. After that, it is connected to the refrigerant recovery device 70.
【００２４】また，容器３１の頭部には，Ｏリングを介
してキャップ３３が装着されている。キャップ３３は，
取付ネジ３３１を取り外すことにより，着脱可能となっ
ている。捕捉材料３５は，前記吸湿剤１８３と同様又は
類似の乾燥剤に，塩酸捕捉剤としてのグリシジルエーテ
ル型エポキシ化合物又はエポキシ化脂肪酸エステル化合
物を飽和吸着させたものである。A cap 33 is attached to the head of the container 31 via an O-ring. The cap 33 is
It can be attached and detached by removing the mounting screw 331. The scavenger material 35 is a desiccant similar to or similar to the hygroscopic agent 183 in which a glycidyl ether type epoxy compound or an epoxidized fatty acid ester compound as a hydrochloric acid scavenger is saturated and adsorbed.
【００２５】グリシジルエーテル型エポキシ化合物とし
ては，例えば，シェル化学社製のエピコート，ダウ社製
のＤＥＲ等の商品名で市販されているものがある。ま
た，エポキシ化脂肪酸モノエステルとして，例えば，ア
デカアーガス社製アデカナイザー，大日本インキ化学社
製エポサイザー等の商品名で市販されているものがあ
る。Examples of glycidyl ether type epoxy compounds include those commercially available under the trade names of Epicoat manufactured by Shell Chemical Co., Ltd. and DER manufactured by Dow. Further, as the epoxidized fatty acid monoester, for example, there are those which are commercially available under the trade names such as Adekanizer manufactured by Adeka Argus and Epocizer manufactured by Dainippon Ink and Chemicals.
【００２６】次に，本例の作用効果について説明する。
冷媒回収装置７０の減圧作用により，被回収冷凍サイク
ル８０より流出した冷媒８１は，冷媒再生装置１０に流
入する。冷媒８１が気相状態で冷媒再生装置に流入した
場合には，冷媒８１中の油は，ミスト状（霧状）で流入
し，フィルタ１７１および気流が衝突する際に壁面に付
着して冷媒８１と分離される。Next, the function and effect of this example will be described.
Due to the depressurizing action of the refrigerant recovery device 70, the refrigerant 81 flowing out from the recovery refrigeration cycle 80 flows into the refrigerant regeneration device 10. When the refrigerant 81 flows into the refrigerant regenerator in the vapor phase, the oil in the refrigerant 81 flows in the form of mist (fog) and adheres to the wall surface when the filter 171 and the air flow collide with each other and the refrigerant 81 And separated.
【００２７】冷媒８１が液相状態で冷媒再生装置１０に
流入した場合には，冷媒８１は，図１に示すように，メ
イン容器１５の底部に貯留される。そして，外部からの
受熱や，冷媒回収装置７０の作動に伴うメイン容器１５
内の減圧化により，冷媒８１のみが蒸発する分留現象が
生じ，底部には油分のみが残る。When the refrigerant 81 flows into the refrigerant regenerator 10 in the liquid phase, the refrigerant 81 is stored at the bottom of the main container 15 as shown in FIG. Then, the main container 15 accompanying the heat received from the outside and the operation of the refrigerant recovery device 70
Due to the reduced pressure inside, a fractional distillation phenomenon occurs in which only the refrigerant 81 evaporates, leaving only oil at the bottom.
【００２８】なお，冷媒８１が気液二相状態で冷媒再生
装置１０に流入した場合，あるいはメイン容器１５内に
溜まっている液状の冷媒８１内に気相の冷媒８１が流入
した場合には，次のようになる。即ち，貯留された冷媒
８１には，分留現象以上の泡立ちを生じるが，フィルタ
１７１によって消泡されるとともに，油分を含む液化冷
媒８１の飛沫はフィルタ１７１に捕獲されて，後流へ油
分が送出されることはない。When the refrigerant 81 flows into the refrigerant regenerator 10 in a gas-liquid two-phase state, or when the gas-phase refrigerant 81 flows into the liquid refrigerant 81 accumulated in the main container 15, It looks like this: That is, the stored refrigerant 81 foams more than the fractionation phenomenon, but is defoamed by the filter 171, and the droplets of the liquefied refrigerant 81 containing oil are captured by the filter 171, and the oil is discharged to the downstream. It is never sent.
【００２９】メイン容器１５の底部に溜まった油分は，
適宜，電磁弁２７を開くことにより，排油口２１より流
出して排油パイプ２８を通って油溜め容器２９に集めら
れ廃棄される。ここまでの作用により冷媒８１中の油分
が除去される。The oil accumulated at the bottom of the main container 15 is
By opening the solenoid valve 27 as appropriate, the oil flows out from the oil drain port 21, passes through the oil drain pipe 28, and is collected in the oil sump container 29 and discarded. The oil component in the refrigerant 81 is removed by the action up to this point.
【００３０】冷媒８１中に含まれる塵埃は，フィルタ１
７１で捕獲されたり，前記冷媒の分留現象により油分と
共に残留したりするが，一部は冷媒８１と共に下流側に
流れる。また，水分も冷媒の分留作用により油分と共に
残留するが，特に冷媒液面の泡立ちにより，一部がミス
ト状となり冷媒８１と共に下流側に流れる。The dust contained in the refrigerant 81 is filtered by the filter 1
Although it is captured by 71 or remains with oil due to the fractional distillation phenomenon of the refrigerant, a part of the refrigerant flows downstream together with the refrigerant 81. Further, the water also remains with the oil due to the fractional action of the refrigerant, but a part thereof becomes a mist due to the bubbling of the liquid surface of the refrigerant and flows to the downstream side together with the refrigerant 81.
【００３１】上記工程を経て油分が除去された冷媒８１
は，気相状態で，内筒１９の小穴を通ってフェルト状の
濾材１８１を通過する際に塵埃が除去される。そして，
更に除湿材１８３の層を上昇通過する際に水分が除去さ
れる。Refrigerant 81 from which oil has been removed through the above steps
In the vapor phase state, dust is removed when passing through the felt-like filter medium 181 through the small holes of the inner cylinder 19. And
Further, water is removed as it passes through the layer of the dehumidifying material 183.
【００３２】そして，もう一段濾材１８２を通過して，
冷媒８１は押さえ板１９１の小穴を通り，流出口１４よ
り流出して，塩酸捕捉装置３０に流入する。なお，後段
のフェルト状の濾材１８２は，吸湿剤１８３の微粉末を
も捕獲する。Then, after passing through another filter medium 182,
The refrigerant 81 passes through the small holes of the pressing plate 191, flows out from the outlet 14, and flows into the hydrochloric acid capturing device 30. The felt-like filter medium 182 in the latter stage also captures fine powder of the moisture absorbent 183.
【００３３】塩酸捕捉装置３０に流入したガス状の冷媒
８１は，塩酸捕捉剤を吸着させた捕捉材料３５に接触
し，下記の化１式に示す化学反応式により，ＨＣｌが除
去される。なお，化１式は，エポキシ系塩酸捕捉剤によ
る塩酸の捕捉反応を示すものである。同式においてＲ
は，水素，炭化水素基又はアシル基であり，反応には直
接関係しない。The gaseous refrigerant 81 flowing into the hydrochloric acid trap 30 comes into contact with the trapping material 35 adsorbing the hydrochloric acid trap, and HCl is removed by the chemical reaction formula shown in the following chemical formula 1. The chemical formula 1 shows a scavenging reaction of hydrochloric acid with an epoxy-based hydrochloric acid scavenger. In the formula, R
Is hydrogen, a hydrocarbon group or an acyl group and is not directly involved in the reaction.
【００３４】そして，通常状態においては液状である前
記塩酸捕捉剤は，乾燥剤に飽和吸着させてあるから，冷
媒８１の流動や，容器内の圧力勾配によって飛散，流動
することがなく，安定的に塩酸を捕獲することができ
る。なお，塩酸捕捉装置３０は，着脱可能なキャップ３
３を有しているから，捕捉材料３５は容易に交換するこ
とができる。Since the hydrochloric acid scavenger, which is liquid in the normal state, is saturated and adsorbed by the desiccant, it does not scatter or flow due to the flow of the refrigerant 81 or the pressure gradient in the container and is stable. It can capture hydrochloric acid. The hydrochloric acid capturing device 30 is equipped with a removable cap 3
3, the trapping material 35 can be easily replaced.
【００３５】塩酸捕捉装置３０を通過し，精製された冷
媒８１は，冷媒回収装置７０において冷却されて液化
し，回収タンク７３に収容される。上記のように本例に
よれば，油や水分等の除去に加えて，冷媒中に含まれる
塩酸成分を除去することができる冷媒再生装置を提供す
ることができる。The refrigerant 81 purified by passing through the hydrochloric acid capturing device 30 is cooled and liquefied in the refrigerant recovery device 70, and is stored in the recovery tank 73. As described above, according to this example, it is possible to provide a refrigerant regenerator that can remove the hydrochloric acid component contained in the refrigerant in addition to removing oil and water.
【００３６】[0036]
【化１】 [Chemical 1]
【００３７】実施例２ 本例は，図２に示すように，実施例１において，吸湿器
と塩酸捕捉装置とを単一の内筒１９内に収容した冷媒再
生装置１００である。即ち，本例冷媒再生装置１００に
おいては，塩酸捕捉用の捕捉材料３５は，内筒１９内の
吸湿剤１８３の下部に配設してあり，塩酸捕捉装置専用
の容器（図１符号３１）は不要である。Embodiment 2 As shown in FIG. 2, this embodiment is a refrigerant regenerator 100 in Embodiment 1 in which the moisture absorber and the hydrochloric acid trap are housed in a single inner cylinder 19. That is, in the refrigerant regenerator 100 of this example, the trapping material 35 for trapping hydrochloric acid is disposed below the hygroscopic agent 183 in the inner cylinder 19, and the container (31 in FIG. 1) dedicated to the hydrochloric acid trapping device is It is unnecessary.
【００３８】その他については，実施例１と同様であ
り，同様の効果を奏することができる。なお，捕捉材料
３５は吸湿剤１８３の上部に配設してもよい。また，捕
捉材料３５を吸湿剤１８３とを内筒１９内に混合充填し
てもよい。Others are similar to those of the first embodiment, and the same effects can be obtained. The trapping material 35 may be provided on the moisture absorbent 183. Alternatively, the trapping material 35 and the hygroscopic agent 183 may be mixed and filled in the inner cylinder 19.
【図１】実施例１の冷媒再生装置の説明図。FIG. 1 is an explanatory diagram of a refrigerant regenerator according to a first embodiment.
【図２】実施例２の冷媒再生装置の説明図。FIG. 2 is an explanatory diagram of a refrigerant regenerator according to a second embodiment.
【図３】従来の冷媒再生装置の説明図。FIG. 3 is an explanatory diagram of a conventional refrigerant regenerator.
１０．．．冷媒再生装置， １６．．．油分離器， １７．．．濾過器， １８．．．吸湿器， １８３．．．吸湿剤， ３０．．．塩酸捕捉装置， ３５．．．捕捉材料， ７０．．．冷媒回収装置， ８０．．．被回収冷凍サイクル， 10. ． ． Refrigerant regenerator, 16. ． ． Oil separator, 17. ． ． Filter, 18. ． ． Moisture absorber, 183. ． ． Hygroscopic agent, 30. ． ． Hydrochloric acid trap, 35. ． ． Capture material, 70. ． ． Refrigerant recovery device, 80. ． ． Refrigeration cycle to be recovered,
Claims (3)
に至る冷媒回収経路に介装された冷媒再生装置であっ
て，上記冷媒再生装置は，冷媒中の油を除去する油分離
器と，塵埃等を除去する濾過器と，水分を除去する吸湿
器と，冷媒中の塩酸成分を除去する塩酸捕捉装置とを有
することを特徴とする冷媒再生装置。1. A refrigerant regenerator interposed in a refrigerant recovery path from a recovery refrigeration cycle to a refrigerant recovery apparatus, wherein the refrigerant regenerator includes an oil separator for removing oil in the refrigerant and dust. A refrigerant regenerator comprising: a filter for removing water and the like; a moisture absorber for removing water; and a hydrochloric acid capturing device for removing a hydrochloric acid component in the refrigerant.
は，塩酸捕捉剤を乾燥剤に飽和吸着させた捕捉材料を用
い，かつ上記油分離器の下流側に配設してあることを特
徴とする冷媒再生装置。2. The hydrochloric acid trapping device according to claim 1, wherein the hydrochloric acid trapping device uses a trapping material in which a desiccant is saturatedly adsorbed with a hydrochloric acid trapping agent, and is arranged downstream of the oil separator. Refrigerant regeneration device.
至る冷媒回収経路に介装された冷媒再生装置であって，
上記冷媒再生装置は，冷媒中の油を除去する油分離器
と，塵埃を除去する濾過器と，塩酸捕捉剤を乾燥剤に飽
和吸着させた捕捉材料と水分を除去する吸湿剤とを混合
充填する吸湿捕捉器とを有することを特徴とする冷媒再
生装置。3. A refrigerant regenerator interposed in a refrigerant recovery path from a recovered refrigeration cycle to a refrigerant recovery device,
The refrigerant regenerator is an oil separator for removing oil in the refrigerant, a filter for removing dust, a trapping material in which a desiccant is saturatedly adsorbed with a hydrochloric acid trapping agent, and a hygroscopic agent for removing water are mixed and filled. And a moisture absorption trap that operates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5151347A JPH06341737A (en) | 1993-05-28 | 1993-05-28 | Refrigerant regenerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5151347A JPH06341737A (en) | 1993-05-28 | 1993-05-28 | Refrigerant regenerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH06341737A true JPH06341737A (en) | 1994-12-13 |
Family
ID=15516583
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5151347A Pending JPH06341737A (en) | 1993-05-28 | 1993-05-28 | Refrigerant regenerator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH06341737A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011025030A1 (en) * | 2009-08-31 | 2011-03-03 | 株式会社根岸製作所 | Absorbent for removal of volatile organic compounds |
| JP2016194377A (en) * | 2015-03-31 | 2016-11-17 | 三菱重工業株式会社 | Refrigerant circulation device, refrigerant circulation method, refrigerant charging method, and operational method of refrigerant circulation device |
| JPWO2015060407A1 (en) * | 2013-10-25 | 2017-03-09 | 三菱重工業株式会社 | Refrigerant circulation device, refrigerant circulation method, and acid suppression method |
| JP2022524758A (en) * | 2019-03-08 | 2022-05-10 | ザ ケマーズ カンパニー エフシー リミテッド ライアビリティ カンパニー | Processes and methods for regenerating flammable and non-flammable hydrofluoroolefin-containing refrigerants |
| US11988426B2 (en) | 2018-09-28 | 2024-05-21 | Daikin Industries, Ltd. | Refrigerant charging method |
-
1993
- 1993-05-28 JP JP5151347A patent/JPH06341737A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011025030A1 (en) * | 2009-08-31 | 2011-03-03 | 株式会社根岸製作所 | Absorbent for removal of volatile organic compounds |
| JP5641655B2 (en) * | 2009-08-31 | 2014-12-17 | 株式会社根岸製作所 | Absorbent for removal of volatile organic compounds |
| JPWO2015060407A1 (en) * | 2013-10-25 | 2017-03-09 | 三菱重工業株式会社 | Refrigerant circulation device, refrigerant circulation method, and acid suppression method |
| JP2016194377A (en) * | 2015-03-31 | 2016-11-17 | 三菱重工業株式会社 | Refrigerant circulation device, refrigerant circulation method, refrigerant charging method, and operational method of refrigerant circulation device |
| US10443899B2 (en) | 2015-03-31 | 2019-10-15 | Mitsubishi Heavy Industries Thermal Systems, Ltd. | Refrigerant circulation device, refrigerant circulation method, refrigerant filling method, and method for operating refrigerant circulation device |
| US11988426B2 (en) | 2018-09-28 | 2024-05-21 | Daikin Industries, Ltd. | Refrigerant charging method |
| US11994323B2 (en) | 2018-09-28 | 2024-05-28 | Daikin Industries, Ltd. | Refrigerant charging method, heat source unit, and renewed refrigeration cycle apparatus |
| JP2022524758A (en) * | 2019-03-08 | 2022-05-10 | ザ ケマーズ カンパニー エフシー リミテッド ライアビリティ カンパニー | Processes and methods for regenerating flammable and non-flammable hydrofluoroolefin-containing refrigerants |
| US12071582B2 (en) | 2019-03-08 | 2024-08-27 | The Chemours Company Fc, Llc | Process and methods for reclaiming flammable and non-flammable hydrofluoro-olefin containing refrigerants |
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