JPH0240461Y2 - - Google Patents
Info
- Publication number
- JPH0240461Y2 JPH0240461Y2 JP15987784U JP15987784U JPH0240461Y2 JP H0240461 Y2 JPH0240461 Y2 JP H0240461Y2 JP 15987784 U JP15987784 U JP 15987784U JP 15987784 U JP15987784 U JP 15987784U JP H0240461 Y2 JPH0240461 Y2 JP H0240461Y2
- Authority
- JP
- Japan
- Prior art keywords
- refrigerant
- fluorocarbon
- refrigeration circuit
- atmosphere
- refrigeration
- 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.)
- Expired
Links
- 239000003507 refrigerant Substances 0.000 claims description 64
- 238000005057 refrigeration Methods 0.000 claims description 42
- NBVXSUQYWXRMNV-UHFFFAOYSA-N fluoromethane Chemical compound FC NBVXSUQYWXRMNV-UHFFFAOYSA-N 0.000 claims description 24
- 238000001514 detection method Methods 0.000 claims description 19
- 239000007789 gas Substances 0.000 claims description 11
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 9
- 239000001301 oxygen Substances 0.000 claims description 9
- 229910052760 oxygen Inorganic materials 0.000 claims description 9
- 238000000926 separation method Methods 0.000 claims description 5
- 239000004519 grease Substances 0.000 description 3
- 229910052750 molybdenum Inorganic materials 0.000 description 3
- 239000011733 molybdenum Substances 0.000 description 3
- 206010021143 Hypoxia Diseases 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 231100000053 low toxicity Toxicity 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- KYKAJFCTULSVSH-UHFFFAOYSA-N chloro(fluoro)methane Chemical compound F[C]Cl KYKAJFCTULSVSH-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 235000010746 mayonnaise Nutrition 0.000 description 1
- 239000008268 mayonnaise Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 150000002751 molybdenum Chemical class 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
Landscapes
- Air Conditioning Control Device (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Description
【考案の詳細な説明】
（産業上の利用分野）
本考案は、室内における冷媒漏れによる危険を
防止する冷凍装置の緊急冷媒放出装置に関するも
のである。[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to an emergency refrigerant release device for a refrigeration system that prevents dangers due to refrigerant leaks indoors.
（従来の技術）
現在一般に使用されている直膨形の冷凍装置は
被冷却（または加熱）が必要な室内に一体型の冷
凍装置または室内ユニツトを設置して冷凍回路内
にフロン冷媒を循環させ室内を冷却（または加
熱）している。(Prior technology) Direct expansion type refrigeration systems that are currently in common use install an integrated refrigeration system or indoor unit in the room that needs to be cooled (or heated), and circulate a fluorocarbon refrigerant within the refrigeration circuit. Cooling (or heating) the room.
このため万一フロン冷媒が室内において漏洩し
た場合には、充填されている冷媒の全量が室内に
充満することとなる。しかして、フロン冷媒は一
応無毒（毒性がきわめて低い）であるとされてい
るので、特に積極的な対策は講じられていないの
が現状である。 Therefore, in the event that the fluorocarbon refrigerant leaks indoors, the entire amount of the refrigerant filled will fill the room. However, since chlorofluorocarbon refrigerants are considered to be non-toxic (extremely low toxicity), no particularly active countermeasures have been taken at present.
しかし近年省エネルギー、騒音の面から直膨分
離形の冷凍装置が増加し、しかも１台の室外ユニ
ツトで複数の室内ユニツトを駆動するマルチ方式
がもてはやされている。また、多様な需要に対応
するために室外ユニツトの容量の増加、連絡配管
の長さの増大も生じている。これらに伴い、冷凍
回路内に充填されている冷媒量も増加の傾向にあ
る。 However, in recent years, the use of direct expansion separation type refrigeration equipment has increased from the standpoint of energy saving and noise reduction, and moreover, a multi-system system in which a single outdoor unit drives a plurality of indoor units has become popular. Additionally, in order to meet diverse demands, the capacity of outdoor units and the length of connecting piping are increasing. Along with these trends, the amount of refrigerant filled in refrigeration circuits also tends to increase.
（考案が解決しようとする問題点）
このような場合、万一室内の熱交換器やその配
管部分で冷媒漏れが発生すると、従来の冷凍装置
では例のない程度の多量の冷媒が放出されること
になり、それが特に狭く気密度の高い室内や冷凍
庫内である場合には、冷媒自体は毒性がきわめて
低くとも、室内にいる者にとつて酸素欠乏症など
危険な状態にさらされるものである。(Problem that the invention aims to solve) In such a case, if a refrigerant leak occurs in the indoor heat exchanger or its piping, a large amount of refrigerant will be released, an unprecedented amount in conventional refrigeration equipment. Therefore, if the refrigerant is in a particularly small and airtight room or freezer, even if the refrigerant itself has very low toxicity, the people inside the room may be exposed to dangerous conditions such as oxygen deficiency. .
そこで本考案は、室内に設けた熱交換器または
配管などから万一冷媒漏れが発生しても、室内に
大量の冷媒が放出されて、室内にいる者が酸欠な
どに陥ることを防止することを目的とする。 Therefore, this invention prevents a large amount of refrigerant from being released into the room and causing oxygen deprivation to the people in the room, even if refrigerant leaks from a heat exchanger or piping installed indoors. The purpose is to
（問題点を解決するための手段）
本考案は、前述のような事故を未然に防止する
ためになされたもので、室内熱交換器４を有する
室内ユニツト１と圧縮機５および室外熱交換器６
などを有する室外ユニツト２とを配管３で接続し
た冷凍回路内にフロン冷媒を循環させる直膨分離
型の冷凍装置において、前記室内ユニツト１が設
置された室内に、空気中の設定値以上のフロンガ
ス濃度を検知して指令を発するフロンガスの濃度
検知装置７または空気中の設定値以下の酸素濃度
を検知して指令を発する酸素の濃度検知装置７を
設け、室外ユニツト２の冷凍回路に、冷凍回路内
のフロン冷媒と大気とを遮断する遮断手段と該遮
断手段を解除して冷凍回路内のフロン冷媒を大気
へ開放する開放手段とを有する冷媒放出装置９を
設け、前記濃度検知装置７と冷媒放出装置９との
間に濃度検知装置７からの指令により前記冷媒放
出装置９の開放手段を作動させる電気駆動手段を
設けたのである。(Means for Solving the Problems) The present invention was made in order to prevent the above-mentioned accidents. 6
In a direct expansion separation type refrigeration system that circulates a fluorocarbon refrigerant in a refrigeration circuit connected to an outdoor unit 2 with a pipe 3, there is a possibility that fluorocarbon gas in the air exceeding a set value is present in the room where the indoor unit 1 is installed. The refrigeration circuit of the outdoor unit 2 is equipped with a fluorocarbon concentration detection device 7 that detects the concentration and issues a command, or an oxygen concentration detection device 7 that detects the oxygen concentration in the air below a set value and issues a command. A refrigerant discharge device 9 is provided, which has a shutoff means for shutting off the fluorocarbon refrigerant in the refrigeration circuit from the atmosphere, and a release means for releasing the cutoff means to release the fluorocarbon refrigerant in the refrigeration circuit to the atmosphere. An electric drive means is provided between the refrigerant discharge device 9 and the refrigerant discharge device 9 to operate the opening means of the refrigerant discharge device 9 in response to a command from the concentration detection device 7.
（作 用）
本考案は、濃度検知装置７により室内の空気中
に、設定値以上のフロンガス濃度が検知されたと
きまたは設定値以下の酸素濃度が検知されたとき
に、電気駆動手段により冷媒放出装置９の遮断手
段が解除され、開放手段が作動させられることに
より冷凍回路内のフロン冷媒が大気へ放出される
こととなる。(Function) The present invention discharges refrigerant by an electric drive means when the concentration detection device 7 detects a fluorocarbon gas concentration in the indoor air that is higher than a set value or when an oxygen concentration is lower than a set value. When the shutoff means of the device 9 is released and the opening means is operated, the fluorocarbon refrigerant in the refrigeration circuit is released to the atmosphere.
（実施例）
以下、本考案を直膨分離型の三室マルチ方式冷
凍装置について詳細に説明する。(Example) Hereinafter, the present invention will be described in detail regarding a direct expansion separation type three-chamber multi-system refrigeration apparatus.
第１図において、１は室内ユニツト、２は室外
ユニツトであり、一台の室外ユニツト２に対し
Ａ、Ｂ、Ｃ三室に設置された室内ユニツト１ａ，
１ｂ，１ｃを配管３により接続した直膨分離形の
三室マルチ式冷凍装置である。 In Fig. 1, 1 is an indoor unit, 2 is an outdoor unit, and for one outdoor unit 2, indoor units 1a,
This is a direct expansion separation type three-chamber multi-type refrigeration system in which 1b and 1c are connected by piping 3.
各室内ユニツト１ａ，１ｂ，１ｃには室内熱交
換器４ａ，４ｂ，４ｃが、また、室外ユニツト２
には圧縮機５、室外熱交換器６などがそれぞれ設
けられ、圧縮機５で圧縮されたフロン冷媒例えば
Ｒ−22は室外熱交換器６で冷却液化され、各室内
熱交換器４ａ，４ｂ，４ｃにて室内の空気を冷却
する冷凍サイクルを繰返す。 Each indoor unit 1a, 1b, 1c has an indoor heat exchanger 4a, 4b, 4c, and an outdoor unit 2
are each provided with a compressor 5, an outdoor heat exchanger 6, etc., and the fluorocarbon refrigerant, such as R-22, compressed by the compressor 5 is cooled and liquefied in the outdoor heat exchanger 6, and then transferred to each indoor heat exchanger 4a, 4b, At step 4c, the refrigeration cycle for cooling the indoor air is repeated.
７はフロンまたは酸素の濃度検知装置であり、
Ａ、Ｂ、Ｃ各室にそれぞれ濃度検知装置７ａ，７
ｂ，７ｃとして設置され、空気中に設定値以上の
フロンガス濃度を検知したときまたは空気中に設
定値以下の酸素濃度を検知したときに、警告を発
するブザーなどの警報器（図示せず）を備えてい
ると同時に、室外ユニツト２のの冷凍回路に設け
られた冷媒放出装置９を作動させる指令手段とし
て電気接点８ａ，８ｂおよび８ｃを有している。 7 is a fluorocarbon or oxygen concentration detection device;
Concentration detection devices 7a and 7 are installed in rooms A, B, and C, respectively.
b, 7c, and is equipped with an alarm (not shown) such as a buzzer that issues a warning when it detects a fluorocarbon gas concentration in the air that is above the set value or when it detects an oxygen concentration in the air that is below the set value. At the same time, it also has electrical contacts 8a, 8b and 8c as command means for operating the refrigerant discharge device 9 provided in the refrigeration circuit of the outdoor unit 2.
冷媒放出装置９詳細は後述するが、いずれかの
室内で冷媒ガス漏れが発生すると、濃度検知の装
置７の電気接点８が閉じて、指令を発し、この指
令により濃度検知装置７と冷媒放出装置９との間
に設けられた電気駆動手段としての電気回路によ
り冷媒放出装置９が作動し、冷凍回路内の冷媒を
直接大気中に放出するものである。 Refrigerant discharge device 9 Details will be described later, but when a refrigerant gas leak occurs in any room, the electrical contact 8 of the concentration detection device 7 closes and issues a command, and this command causes the concentration detection device 7 and the refrigerant discharge device to The refrigerant discharge device 9 is actuated by an electric circuit as an electric driving means provided between the refrigerant and the refrigerant, and discharges the refrigerant in the refrigeration circuit directly into the atmosphere.
次に、冷媒放出装置９について説明する。第２
図は室外ユニツト２の冷凍回路に設けられた冷媒
放出装置９の一例を示し、放出栓１０、三方電磁
弁２０、溶栓３０により構成され、また放出栓１
０、三方電磁弁２０、溶栓３０により室外ユニツ
ト２の冷凍回路内のフロン冷媒と大気を遮断する
ための遮断手段及び遮断手段を解除して冷凍回路
内のフロン冷媒を大気へ開放するための開放手段
が形成されている。 Next, the refrigerant discharge device 9 will be explained. Second
The figure shows an example of a refrigerant discharge device 9 provided in the refrigeration circuit of the outdoor unit 2, which is composed of a discharge plug 10, a three-way solenoid valve 20, and a fusible plug 30.
0, a shutoff means for shutting off the fluorocarbon refrigerant in the refrigeration circuit of the outdoor unit 2 and the atmosphere using the three-way solenoid valve 20 and the fusible plug 30, and a shutoff means for releasing the fluorocarbon refrigerant in the refrigeration circuit to the atmosphere Opening means are formed.
放出栓１０は上部に開口１１する中空室１２、
下部に室外ユニツト２の冷凍回路に接続される開
口１３および側壁に大気に開放された開口１４を
それぞれ有し、中空室１２は開口１４に連通し、
その内部にベローズ１５を収納し、該ベローズ１
５は開口１１に螺合する蓋１６により中空室１２
と気密的に固定され、該蓋１６の開口１７により
その内部を三方電磁弁２０に連通しており、開口
１３と開口１４とを薄板シール１８を上部より押
圧してシールするものである。 The discharge plug 10 has a hollow chamber 12 having an opening 11 at the top;
The lower part has an opening 13 connected to the refrigeration circuit of the outdoor unit 2, and the side wall has an opening 14 open to the atmosphere, and the hollow chamber 12 communicates with the opening 14.
A bellows 15 is stored inside it, and the bellows 1
5 is a hollow chamber 12 with a lid 16 screwed into the opening 11.
The opening 17 of the lid 16 communicates the inside with the three-way solenoid valve 20, and the openings 13 and 14 are sealed by pressing a thin plate seal 18 from above.
三方電磁弁２０は弁本体２１と弁２２とコイル
２３とからなり、前記濃度検知装置７の電気接点
８と直列に電源に接続したコイル２３に通電する
ことにより弁２２を移動させ、室外ユニツト２の
冷凍回路内に連通する開口２５を閉止し、溶栓３
０に連通する開口２６を開放して、前記放出栓１
０の開口１７に連通する開口２４を、開口２５か
ら開口２６に切換連通させるものである。 The three-way solenoid valve 20 consists of a valve body 21, a valve 22, and a coil 23, and the valve 22 is moved by energizing the coil 23, which is connected to the power supply in series with the electric contact 8 of the concentration detection device 7, and the outdoor unit 2 The opening 25 communicating with the refrigeration circuit is closed, and the fuser plug 3 is closed.
0 is opened, and the discharge plug 1 is opened.
The opening 24 communicating with the opening 17 of No. 0 is switched to communicate from the opening 25 to the opening 26.
また、溶栓３０は円柱形で中空穴３１に小形溶
栓３２を圧入し、中空穴３１の一端３３を三方電
磁弁２０の開口２６に連通させ、他端３４を大気
に開放するとともに、中空穴３１の周囲の円柱部
にヒータ３５を内蔵し、該ヒータ３５を前記コイ
ル２３と並列して前記濃度検知装置７の電気接点
８と直列にして電源に接続するものである。 The fuser plug 30 has a cylindrical shape, and a small fuser plug 32 is press-fitted into a hollow hole 31, one end 33 of the hollow hole 31 is communicated with the opening 26 of the three-way solenoid valve 20, the other end 34 is opened to the atmosphere, and the hollow A heater 35 is built into the cylindrical part around the hole 31, and the heater 35 is connected in parallel with the coil 23, in series with the electrical contact 8 of the concentration detection device 7, and connected to a power source.
叙上の如き冷媒放出装置９において、冷凍装置
が安全に運転中は濃度検知装置７の電気接点８は
開放されたままであるので、三方電磁弁２０のコ
イル２３には通電されず、ベローズ１５の内部に
は室外ユニツト２の冷媒圧力（４〜29Kg／cm2）が
三方電磁弁２０の開口２５、開口２４および放出
栓１０の開口１７を経て加わつており、開口１３
にも同圧が加わつている。しかして、薄板シール
１８は２Kg／cm2程度で破れるものであるが、冷凍
装置が安全運転中はその上下の力がバランスして
いるので、破れることなく開口１３と開口１４と
を遮断し、室外ユニツトの冷凍回路内は大気との
間をシールされている。 In the refrigerant discharge device 9 as described above, the electric contact 8 of the concentration detection device 7 remains open while the refrigeration device is operating safely, so the coil 23 of the three-way solenoid valve 20 is not energized and the bellows 15 is not energized. The refrigerant pressure (4 to 29 kg/cm 2 ) of the outdoor unit 2 is applied to the inside through the openings 25 and 24 of the three-way solenoid valve 20 and the opening 17 of the discharge tap 10 .
The same pressure is being applied to Although the thin plate seal 18 breaks at about 2 kg/cm 2 , when the refrigeration system is in safe operation, the vertical forces are balanced, so the thin plate seal 18 blocks the openings 13 and 14 without breaking. The inside of the outdoor unit's refrigeration circuit is sealed from the atmosphere.
つまり、電気接点８が開放されている状態では
上記放出栓１０、三方電磁弁２０及び溶栓３０か
ら形成される遮断手段により冷凍回路内のフロン
冷媒と大気とは遮断されており、フロン冷媒は大
気へ放出されることはない。 That is, when the electrical contact 8 is open, the fluorocarbon refrigerant in the refrigeration circuit is cut off from the atmosphere by the cutoff means formed by the discharge plug 10, the three-way solenoid valve 20, and the fusible plug 30, and the fluorocarbon refrigerant is It will not be released into the atmosphere.
しかし、冷凍装置に故障が生じて冷媒ガスが漏
れ濃度検知装置７の電気接点８が閉止されると、
電気駆動手段である電気回路により三方電磁弁２
０のコイル２３に通電されて弁２２が移動し、開
口２４と開口２６とを連通させ、同時に溶栓３０
のヒータ３５に通電されるので、小形溶栓３２が
融け、ベローズ１５内は開口１７、三方電磁弁２
０の開口２４、開口２６、溶栓３０の中空穴３１
の一端３３および他端３４と連通して大気圧とな
り、薄板シール１８の上下の圧力は２Kg／cm2以上
となり、室外ユニツト２の冷凍回路内の冷媒圧力
で破れて、冷凍回路内の冷媒は大気中へ放出され
る。 However, if a failure occurs in the refrigeration system and the refrigerant gas leaks and the electrical contact 8 of the concentration detection device 7 is closed,
The three-way solenoid valve 2 is operated by an electric circuit which is an electric drive means.
0 coil 23 is energized to move the valve 22, causing the openings 24 and 26 to communicate with each other, and at the same time, the fuser plug 30
Since the heater 35 of
0 opening 24, opening 26, hollow hole 31 of fusible plug 30
It communicates with one end 33 and the other end 34 and becomes atmospheric pressure, and the pressure above and below the thin plate seal 18 becomes 2 kg/cm 2 or more, and it is ruptured by the refrigerant pressure in the refrigeration circuit of the outdoor unit 2, and the refrigerant in the refrigeration circuit is released. Released into the atmosphere.
つまり、濃度検知装置７の電気接点８が閉止さ
れると、電気駆動手段である電源からの通電によ
り放出栓１０、三方電磁弁２０及び溶栓３０から
形成される開放手段が作動し冷凍回路内のフロン
冷媒が大気中へ放出される。 In other words, when the electrical contact 8 of the concentration detection device 7 is closed, the opening means formed by the discharge plug 10, the three-way solenoid valve 20, and the fusible plug 30 is activated by energization from the power source, which is an electric drive means, and the inside of the refrigeration circuit is activated. of CFC refrigerant is released into the atmosphere.
第３図は冷媒放出装置９の他の一例を示すもの
で電磁弁４０からなり、電磁弁４０は弁本体４１
と弁４２とコイル４３とで構成され、弁本体４１
の側壁に室外ユニツト２の冷凍回路に接続される
開口４４および下部に大気に開放される開口４５
とをそれぞれ有し、弁４２により常時は遮断手段
としての機能を果たし開口４４と開口４５とを遮
断し、冷媒ガスが漏洩したときには開放手段とし
ての機能を果たしコイル４３に通電されて弁４２
を吸引して開口４４と開口４５とを連通させ、冷
凍回路内の冷媒を大気に放出するものである。 FIG. 3 shows another example of the refrigerant discharge device 9, which is composed of a solenoid valve 40.
The valve body 41 is composed of a valve 42 and a coil 43.
An opening 44 connected to the refrigeration circuit of the outdoor unit 2 on the side wall and an opening 45 opened to the atmosphere at the bottom.
The valve 42 normally functions as a shutoff means to shut off the openings 44 and 45, and when refrigerant gas leaks, it functions as an opening means and the coil 43 is energized to close the valve 42.
The refrigerant in the refrigeration circuit is discharged into the atmosphere by suctioning the refrigerant and making the openings 44 and 45 communicate with each other.
ところで、一般に電磁弁の弁部は通常完全シー
ルが不可能で電気検知器で検知できる程度の漏れ
があり、冷媒放出装置９として使用することがで
きないので、第３図示の如く弁部にマヨネーズ程
度の粘度を有するモリブデングリス４６を入れて
弁の微小漏れを防止するものである。 By the way, in general, the valve part of a solenoid valve cannot be completely sealed and there is leakage that can be detected by an electric detector, so it cannot be used as the refrigerant release device 9, so the valve part is coated with mayonnaise as shown in Figure 3. Molybdenum grease 46 having a viscosity of
このモリブデングリス４６を弁部に入れておく
と、弁の微小漏れの防止が可能であり、弁を開く
とモリブデングリス４６が流れ出してしまうた
め、冷媒放出装置９として使用することができる
ものである。 By putting this molybdenum grease 46 in the valve part, it is possible to prevent minute leaks from the valve, and when the valve is opened, the molybdenum grease 46 flows out, so it can be used as a refrigerant discharge device 9. .
第４図は冷媒放出装置９のさらに他の一例を示
すもので、円柱形の溶栓式装置５０からなり、中
空穴５１に溶栓５２を圧入してシールし、中空穴
５１の一端５３を室外ユニツト２の冷凍回路に接
続し、他端５４を大気に開放するとともに、中空
穴５１の周囲の円柱部にヒータ５５を内蔵し、該
ヒータ５５を前記濃度検知装置７の電気接点８と
直列に電源に接続するものであり、シールされて
いる状態では遮断手段としての機能を果たす。 FIG. 4 shows still another example of the refrigerant discharge device 9, which is composed of a cylindrical fuse plug type device 50, in which a fuse plug 52 is press-fitted into a hollow hole 51 to seal it, and one end 53 of the hollow hole 51 is sealed. It is connected to the refrigeration circuit of the outdoor unit 2, the other end 54 is open to the atmosphere, and a heater 55 is built in the cylindrical part around the hollow hole 51, and the heater 55 is connected in series with the electrical contact 8 of the concentration detection device 7. It is connected to the power supply, and when sealed, it functions as a cut-off means.
故障時には開放手段としての機能を果たし濃度
検知装置７の電気接点８によりヒータ５５が加熱
されて溶栓５２を融かし、冷媒を大気に放出する
ものである。 In the event of a failure, the heater 55 functions as an opening means and is heated by the electric contact 8 of the concentration detection device 7 to melt the fuse plug 52 and release the refrigerant to the atmosphere.
この場合には第２図実施例のパイロツト方式に
対して室外ユニツト２の冷凍回路を溶栓に直結し
た直接方式であるので、溶栓５２およびヒータ５
５が大形になり作動時間がやや長くかかるもので
ある。 In this case, unlike the pilot method of the embodiment shown in FIG. 2, the refrigeration circuit of the outdoor unit 2 is directly connected to the fuser plug, so the
5 is large in size and takes a little longer to operate.
（効 果）
本考案は叙上の如く、濃度検知装置７により室
内の空気中に、設定値以上のフロンガス濃度が検
知されたときまたは設定値以下の酸素濃度が検知
されたときに、電気駆動手段により冷媒放出装置
９の遮断手段が解除され、開放手段が作動させら
れることにより冷凍回路内のフロン冷媒が大気へ
放出されることとなる。(Effects) As described above, the present invention operates an electric drive system when the concentration detection device 7 detects a fluorocarbon gas concentration in the indoor air that is higher than a set value or an oxygen concentration lower than a set value. The blocking means of the refrigerant discharge device 9 is released by the means, and the opening means is operated, whereby the fluorocarbon refrigerant in the refrigeration circuit is discharged to the atmosphere.
このため、万一冷媒漏れが発生しても、室内に
大量の冷媒ガスが放出されて、室内にいる者が酸
欠などに陥らないようにできるものである。 Therefore, even if a refrigerant leak were to occur, a large amount of refrigerant gas would be released into the room, preventing those in the room from suffering from oxygen deficiency.
図面は本考案の実施例を示し、第１図は配管接
続図、第２図ないし第４図は本考案に使用する冷
媒放出装置の各例を示す縦断面図および配管接続
図である。
１……室内ユニツト、２……室外ユニツト、３
……配管、４……室内熱交換器、５……圧縮機、
６……室外熱交換器、７……濃度検知装置、９…
…冷媒放出装置。
The drawings show an embodiment of the present invention, and FIG. 1 is a piping connection diagram, and FIGS. 2 to 4 are longitudinal sectional views and piping connection diagrams showing each example of a refrigerant discharge device used in the present invention. 1...Indoor unit, 2...Outdoor unit, 3
... Piping, 4 ... Indoor heat exchanger, 5 ... Compressor,
6...Outdoor heat exchanger, 7...Concentration detection device, 9...
...Refrigerant release device.
Claims (1)
機５および室外熱交換器６などを有する室外ユニ
ツト２とを配管３で接続した冷凍回路内にフロン
冷媒を循環させる直膨分離型の冷凍装置におい
て、前記室内ユニツト１が設置された室内に、空
気中の設定値以上のフロンガス濃度を検知して指
令を発するフロンガスの濃度検知装置７または空
気中の設定値以下の酸素濃度を検知して指令を発
する酸素の濃度検知装置７を設け、室外ユニツト
２の冷凍回路に、冷凍回路内のフロン冷媒と大気
とを遮断する遮断手段と該遮断手段を解除して冷
凍回路内のフロン冷媒を大気へ開放する開放手段
とを有する冷媒放出装置９を設け、前記濃度検知
装置７と冷媒放出装置９との間に濃度検知装置７
からの指令により前記冷媒放出装置９の開放手段
を作動させる電気駆動手段を設けたことを特徴と
する冷凍装置の緊急冷媒放出装置。 In a direct expansion separation type refrigeration system in which a fluorocarbon refrigerant is circulated in a refrigeration circuit in which an indoor unit 1 having an indoor heat exchanger 4 and an outdoor unit 2 having a compressor 5, an outdoor heat exchanger 6, etc. are connected by piping 3. In the room in which the indoor unit 1 is installed, there is provided a fluorocarbon gas concentration detection device 7 that detects a fluorocarbon gas concentration in the air that is above a set value and issues a command, or a fluorocarbon gas concentration detection device 7 that detects an oxygen concentration in the air that is below a set value and issues a command. A device 7 for detecting the concentration of oxygen emitted is provided in the refrigeration circuit of the outdoor unit 2, and a shutoff means for shutting off the fluorocarbon refrigerant in the refrigeration circuit from the atmosphere is released, and the fluorocarbon refrigerant in the refrigeration circuit is released to the atmosphere by releasing the shutoff means. A refrigerant discharge device 9 having a release means for
An emergency refrigerant release device for a refrigeration system, characterized in that an electric drive means is provided for operating the opening means of the refrigerant release device 9 in accordance with a command from the refrigerant release device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15987784U JPH0240461Y2 (en) | 1984-10-23 | 1984-10-23 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15987784U JPH0240461Y2 (en) | 1984-10-23 | 1984-10-23 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6174078U JPS6174078U (en) | 1986-05-19 |
| JPH0240461Y2 true JPH0240461Y2 (en) | 1990-10-29 |
Family
ID=30717823
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15987784U Expired JPH0240461Y2 (en) | 1984-10-23 | 1984-10-23 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0240461Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005293997A (en) * | 2004-03-31 | 2005-10-20 | Daikin Ind Ltd | Fuel cell power generation and refrigeration system |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3452666B2 (en) * | 1994-12-28 | 2003-09-29 | 株式会社東芝 | Freezer refrigerator |
| JP2005241121A (en) * | 2004-02-26 | 2005-09-08 | Mitsubishi Heavy Ind Ltd | Air conditioner |
| WO2012098584A1 (en) | 2011-01-20 | 2012-07-26 | 三菱電機株式会社 | Air conditioner |
| WO2017179117A1 (en) * | 2016-04-12 | 2017-10-19 | 三菱電機株式会社 | Air conditioner |
| WO2018151178A1 (en) * | 2017-02-14 | 2018-08-23 | ダイキン工業株式会社 | Refrigerating device |
| AU2018310045B2 (en) * | 2017-08-03 | 2021-04-29 | Daikin Industries, Ltd. | Refrigeration Apparatus |
-
1984
- 1984-10-23 JP JP15987784U patent/JPH0240461Y2/ja not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2005293997A (en) * | 2004-03-31 | 2005-10-20 | Daikin Ind Ltd | Fuel cell power generation and refrigeration system |
| WO2005099006A1 (en) * | 2004-03-31 | 2005-10-20 | Daikin Industries, Ltd. | Fuel cell power generating refrigeration system |
| US7614245B2 (en) | 2004-03-31 | 2009-11-10 | Daikin Industries, Ltd. | Fuel cell power generation refrigerating system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6174078U (en) | 1986-05-19 |
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