JPH0288082A - Mixture gas respiration device with moistening unit for pneumatic work - Google Patents
Mixture gas respiration device with moistening unit for pneumatic workInfo
- Publication number
- JPH0288082A JPH0288082A JP23968488A JP23968488A JPH0288082A JP H0288082 A JPH0288082 A JP H0288082A JP 23968488 A JP23968488 A JP 23968488A JP 23968488 A JP23968488 A JP 23968488A JP H0288082 A JPH0288082 A JP H0288082A
- Authority
- JP
- Japan
- Prior art keywords
- valve
- mixed gas
- pressure
- breathing
- main air
- 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
- 230000029058 respiratory gaseous exchange Effects 0.000 title claims abstract description 56
- 239000000203 mixture Substances 0.000 title abstract description 11
- 238000009423 ventilation Methods 0.000 claims description 42
- 230000000241 respiratory effect Effects 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 15
- 238000000034 method Methods 0.000 abstract description 2
- 239000002184 metal Substances 0.000 abstract 2
- 239000008400 supply water Substances 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 86
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 238000010276 construction Methods 0.000 description 4
- 230000007613 environmental effect Effects 0.000 description 4
- 238000003780 insertion Methods 0.000 description 4
- 230000037431 insertion Effects 0.000 description 4
- 239000011358 absorbing material Substances 0.000 description 3
- 238000010438 heat treatment Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- 230000009189 diving Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000001307 helium Substances 0.000 description 2
- 229910052734 helium Inorganic materials 0.000 description 2
- SWQJXJOGLNCZEY-UHFFFAOYSA-N helium atom Chemical compound [He] SWQJXJOGLNCZEY-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 206010011951 Decompression Sickness Diseases 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 229940025445 helium / nitrogen / oxygen Drugs 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052754 neon Inorganic materials 0.000 description 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 231100000572 poisoning Toxicity 0.000 description 1
- 230000000607 poisoning effect Effects 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
- 230000035922 thirst Effects 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野］
この発明は、圧気作業例えば圧気潜函の作業室内におい
て作業を行なう際に作業員が着用する水補給可能な加’
ＩＷユニット付き混合ガス呼吸装置に関するものである
。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a water-replenishable jacket worn by a worker when performing pressure work, for example, in a work chamber of a pressure diving box.
This invention relates to a mixed gas breathing apparatus with an IW unit.
潜水者が圧縮空気を呼吸しながら深海を潜水すると、窒
素酔いや酸素中毒を起こすなど、様々な障害が発生する
。これを防止するために、呼吸ガスとして、ヘリウム・
酸素混合ガス、ネオン・酸素混合ガス、水素・酸素混合
ガスなどの二元ガス、あるいはヘリウム・水素・酸素混
合ガス、ヘリウム・窒素・酸素混合ガスなどの三元ガス
などを用いることが知られている。これらのことは、圧
気潜函（ケーソン）工法など、圧気を用いる工事現場に
ついても共通である。When divers dive deep into the ocean while breathing compressed air, various problems occur, including nitrogen sickness and oxygen poisoning. To prevent this, helium and
It is known to use binary gases such as oxygen mixed gas, neon/oxygen mixed gas, hydrogen/oxygen mixed gas, or ternary gases such as helium/hydrogen/oxygen mixed gas or helium/nitrogen/oxygen mixed gas. There is. These things are also common to construction sites that use pressurized air, such as the pressurized air caisson construction method.
圧気潜函工法において、前述のような空気以外の高価な
混合ガスを呼吸ガスとして用いる場合、作業室やマンロ
ック内を呼吸ガスと同じガスで満たすことは、非常に不
経済である。そこで、呼吸マスクを用いて、混合ガスを
呼吸し、環境ガスを空気にするのが得策である。In the case of using an expensive mixed gas other than air as the breathing gas in the pressure submerged box construction method, it is very uneconomical to fill the working room or manlock with the same gas as the breathing gas. Therefore, it is a good idea to use a breathing mask to breathe the gas mixture and turn the environmental gas into air.
このようにする場合、呼吸用混合ガスを呼吸ガス用送気
管によって供給すれば、時間に制限なく混合ガスを供給
できるので安全である。しかし、このようにすると、圧
気潜函の作業室が広い場合やマンロツタから作業室まで
の距離が大きい場合などは、長い呼吸ガス用送気管を作
業員が携帯しなければならず、作業範囲（作業員の移動
範囲）に制約が生ずることになる。In this case, if the mixed gas for breathing is supplied through the breathing gas supply pipe, it is safe because the mixed gas can be supplied without any time limit. However, if this method is used, if the working room of the pneumatic submersible is large or if the distance from the manrot ivy to the working room is long, the worker will have to carry a long breathing gas pipe, There will be restrictions on the range of movement of employees.
この問題を解決できるケーソン用混合ガス呼吸設備とし
て、第８図に示すように、圧気潜函１３における作業室
１４内およびマンシャフト１５内に、それぞれホースか
らなる複数の呼吸用混合ガス供給管１を設け、各混合ガ
ス供給管ｌの端部に、呼吸マスク３の吸気ホース１６の
端部に連結された通気プラグからなる通気接続金具２を
接続できる共通の通気ソケット１７を連結し、前記通気
ソケット１７に、通気接続金具２の挿込時に自動的に開
放される開閉弁を設けた混合ガス呼吸設備が提案されて
いる。As a mixed gas breathing equipment for a caisson that can solve this problem, as shown in FIG. A common ventilation socket 17 is connected to the end of each mixed gas supply pipe l to which a ventilation connection fitting 2 consisting of a ventilation plug connected to the end of the intake hose 16 of the breathing mask 3 can be connected. No. 17 proposes a mixed gas breathing equipment equipped with an on-off valve that is automatically opened when the ventilation connection fitting 2 is inserted.
この混合ガス呼吸設備に用いられる混合ガスは、望む組
成で予め工場でボンベに充填したものを、施工現場に搬
入して使用するのが一般的である。The mixed gas used in this mixed gas breathing equipment is generally filled in cylinders with a desired composition in advance at a factory and then transported to the construction site for use.
この時、ボンベ内の混合ガスは、ボンベの腐食を防止す
るため、湿度がほぼ０％である。このような湿度の殆ん
どない混合ガスを呼吸ガスとして使用すると、作業員は
喉の渇きを訴え、非常に苦痛に感しる。また、低湿度の
ガスを呼吸すると、減圧症の発症率が上昇するといわれ
ており、労働安全衛生上望ましくない。したがって、呼
吸用混合ガスに加湿する必要がある。At this time, the humidity of the mixed gas in the cylinder is approximately 0% to prevent corrosion of the cylinder. If such a mixed gas with almost no humidity is used as a breathing gas, workers will complain of thirst and experience great pain. Furthermore, breathing low-humidity gas is said to increase the incidence of decompression sickness, which is undesirable from an occupational safety and health perspective. Therefore, it is necessary to humidify the breathing gas mixture.
従来、潜水作業において、潜水者が混合ガスを呼吸する
場合は、潜水者が装着する混合ガス呼吸装置に加温ユニ
ットを付属させて、混合ガスに加湿している。この加湿
ユニットの加湿性能の持続時間は３０分間程度である。Conventionally, when a diver breathes a mixed gas during diving work, a heating unit is attached to a mixed gas breathing apparatus worn by the diver to humidify the mixed gas. The duration of the humidifying performance of this humidifying unit is about 30 minutes.
しかしながら、作業員が圧気潜函の作業室内に入ってい
る時間は約１〜２時間であるので、潜水者が装着してい
る加湿装置付き混合ガス呼吸装置を圧気潜函の作業室内
で作業員が使用する場合は、加湿性能の持続時間が不足
する。この持続時間を延長するためには、まず加湿ユニ
７トの径や長さを大きくすることが考えられる。しかし
、加湿ユニットにおけるケーシング内には中圧の混合ガ
スが満たされるので、そのケーシングを厚肉の耐圧容器
にする必要があり、そのため加湿ユニソ１−の径や長さ
を大きくすると、必然的に前記ケーシングの肉厚が厚く
なり、全体的に重くなる。However, since the time that a worker is in the work chamber of a pneumatic submersible is approximately 1 to 2 hours, the worker must use the mixed gas breathing apparatus with a humidifier that is worn by the diver inside the work chamber of the pneumatic submersible. If this is the case, the humidifying performance will not last long enough. In order to extend this duration, it is conceivable to first increase the diameter and length of the humidifying unit 7. However, since the casing of the humidifying unit is filled with a medium-pressure mixed gas, the casing must be made into a thick-walled pressure-resistant container. Therefore, if the diameter and length of the humidifying unit are increased, The wall thickness of the casing becomes thicker, and the whole becomes heavier.
加ｌ嘉装置付き混合ガス呼吸装置は、圧気潜函作業室内
の作業員の身体に装着されて使用されるから、加湿ユニ
ットの重量が重いと作業員に負担をかけることになるの
で好ましくない。Since the mixed gas breathing apparatus with a gas evaporator is used by being attached to the body of a worker in a pressurized air chamber, a heavy humidification unit is not preferable because it puts a burden on the worker.
この発明は、加湿ユニフトの加湿性能が低下したとき、
混合ガス呼吸装置の使用中であっても、加温ユニット内
に水補給を行なうことができる圧気作業用加湿ユニット
付き混合ガス呼吸装置を提供することを目的とするもの
である。When the humidifying performance of the humidifying unit decreases, this invention
It is an object of the present invention to provide a mixed gas breathing apparatus with a humidifying unit for pressurized air work, which allows water to be replenished into the heating unit even when the mixed gas breathing apparatus is in use.
〔課題を解決するための手段］
前記目的を達成するために、この発明の圧気作業用加湿
ユニント付き混合ガス呼吸装置においては、呼吸用混合
ガス供給管１に着脱自在に接続される通気接続金具２と
呼吸マスク３に接続された減圧弁４とが、主送気管路５
により接続され、その主送気管路５に、上流側から下流
側に向かって、開閉弁６と開放自在な加湿ユニット７と
逆止弁８とが順次介在され、前記開閉弁６と加湿ユニン
１−７との間において主送気管路５に開閉自在な工法き
弁９が接続され、バイパス管路１０の一端部が前記通気
接続金具２と開閉弁６との間において前記主送気管路５
に接続されると共に、前記バイパス管路１０の他端部が
前記減圧弁４と逆止弁８との間において主送気管路５に
接続され、前記バイパス管路１０に閉止用ばね１１を備
えている逆止弁１２が介在されている。[Means for Solving the Problems] In order to achieve the above object, the mixed gas breathing apparatus with a humidifying unit for pressurized air work of the present invention includes a ventilation connection fitting that is detachably connected to the breathing mixed gas supply pipe 1. 2 and a pressure reducing valve 4 connected to the breathing mask 3 are connected to the main air line 5.
An on-off valve 6, an openable humidification unit 7, and a check valve 8 are sequentially interposed in the main air supply pipe 5 from the upstream side to the downstream side, and the on-off valve 6 and the humidification unit 1 are connected to each other. -7, a valve 9 that can be opened and closed is connected to the main air supply pipe 5, and one end of the bypass pipe 10 is connected to the main air pipe 5 between the ventilation connection fitting 2 and the on-off valve 6.
and the other end of the bypass line 10 is connected to the main air supply line 5 between the pressure reducing valve 4 and the check valve 8, and the bypass line 10 is provided with a closing spring 11. A check valve 12 is interposed.
加湿ユニント７内に水を補給する場合は、開閉弁６を閉
じたのち圧抜き弁９を開放すると、加湿ユニント７内の
中圧混合ガスが圧抜き弁９を通って排出され、通気接続
金具２に供給された呼吸用混合ガスは、逆止弁１２を有
するバイパス管路１０および減圧弁４を通って呼吸マス
ク３に供給されるので、作業員は、混合ガスを呼吸しな
がら、加湿ユニット７を開放してその加湿ユニット７の
中に水を補給することができる。水の補給を終了して加
湿ユニット７を閉じたのちは、圧抜き弁９を閉じると共
に開閉弁６を開放すると、通気接続金具２に供給された
呼吸用混合ガスは、主送気管路５における加湿ユニット
７により加湿されながら、減圧弁４により減圧されて呼
吸マスク３に供給される。When replenishing water into the humidifying unit 7, close the on-off valve 6 and then open the pressure relief valve 9. The medium-pressure mixed gas in the humidification unit 7 will be discharged through the pressure relief valve 9, and the ventilation connection fitting will be discharged. 2 is supplied to the breathing mask 3 through the bypass pipe 10 having the check valve 12 and the pressure reducing valve 4, so the worker can breathe the mixed gas while using the humidifying unit. 7 can be opened to replenish water into the humidifying unit 7. After completing the water supply and closing the humidifying unit 7, the pressure relief valve 9 is closed and the on-off valve 6 is opened, so that the breathing mixed gas supplied to the ventilation connection fitting 2 flows through the main air supply pipe 5. While being humidified by the humidifying unit 7, the pressure is reduced by the pressure reducing valve 4 and the air is supplied to the respiratory mask 3.
次にこの発明を図示の例によって詳細に説明する。 Next, the present invention will be explained in detail using illustrated examples.
第１図ないし第７図はこの発明の一実施例を示すもので
あって、通気孔を有するプラグからなる２つの通気接続
金具２．１８にそれぞれ閉止用ばねを有する逆止弁１９
．２０が接続され、各通気接続金具２．１８と呼吸マス
ク３に接続された減圧弁４とは主送気管路５を介して接
続され、その主送気管路５に、上流側から下流側に向か
って、フィルタ２１．開閉弁６．開放自在な加湿ユニッ
ト７および閉止用ばねを有する逆止弁８が順次介在され
、かつ前記開閉弁６と加湿ユニント７との間において主
送気管路５に開閉自在な圧抜き弁９が接続され、さらに
バイパス管路１ｏの一端部は前記フィルタ２１と開閉弁
６との間において前記主送気管路５に接続され、前記バ
イパス管路１゜の他端部は減圧弁４と逆止弁８との間に
おいて主送気管路５に接続され、また前記バイパス管路
１０には、閉止用ばね１１を備えている逆止弁１２が介
在されている。1 to 7 show an embodiment of the present invention, in which a check valve 19 is provided with a closing spring in each of two vent connection fittings 2.18, each of which is a plug having a vent hole.
．． 20 is connected, and each ventilation connection fitting 2.18 and the pressure reducing valve 4 connected to the breathing mask 3 are connected via a main air supply line 5, and a towards the filter 21. Open/close valve6. A humidifying unit 7 that can be opened freely and a check valve 8 having a closing spring are interposed in sequence, and a pressure relief valve 9 that can be opened and closed is connected to the main air supply pipe 5 between the on-off valve 6 and the humidifying unit 7. Further, one end of the bypass line 1o is connected to the main air supply line 5 between the filter 21 and the on-off valve 6, and the other end of the bypass line 1o is connected to the pressure reducing valve 4 and the check valve 8. A check valve 12, which is connected to the main air supply line 5 between the main air supply line 5 and the bypass line 10, is provided with a closing spring 11.
前記バイパス管路１０に設けられた逆止弁１２における
弁体は閉止用ばね１１により閉止位置に押えられている
ので、バイパス管路１０のガス流通抵抗は主送気管路５
のガス流通抵抗よりも太き（設定され、また作業員が装
着する安全用混合ガスボンベ２２と前記主送気管路５に
おけるフィルタ２１および逆止弁１９．２０の間の部分
とは非常用混合ガス供給管路２３を介して接続され、そ
の混合ガス供給管路２３には減圧弁２４および開閉弁２
５が介在され、前記混合ガスボンベ２２には約１５０
ｋｇ／ｃａ程度の高圧混合ガスが充填されている。Since the valve body of the check valve 12 provided in the bypass line 10 is held in the closed position by the closing spring 11, the gas flow resistance of the bypass line 10 is lower than that of the main air supply line 5.
The area between the safety mixed gas cylinder 22, which is set and worn by the worker, and the filter 21 and check valve 19, 20 in the main air supply pipe 5 is the emergency mixed gas. It is connected via a supply pipe line 23, and the mixed gas supply line 23 has a pressure reducing valve 24 and an on-off valve 2.
5 is interposed, and the mixed gas cylinder 22 contains approximately 150
It is filled with high pressure mixed gas of about kg/ca.
第３図および第４図は着脱自在な通気継手２６を示すも
のであって、第８図に示すホースからなる呼吸用混合ガ
ス供給管１の端部にソケット本体２７が連結され、その
ソケット本体２７にプラグからなる通気接続金具２を挿
込むための挿込孔２８が設けられ、かつソケット本体２
７内に、ばね２９により弁座３０に押付けられる開閉弁
３１が設けられ、その開閉弁３１には通気接続金具２に
より押圧される開弁部材３２が固定され、かつソケット
本体２７における挿込孔２８の周壁に設けられた係合孔
には、係止用球体３３が嵌合され、さらにソケット本体
２７の外周には、大内径部および小内径部を存するロッ
ク用スリーブ３４が摺動自在に嵌合され、また前記通気
接続金具２の外周には、係止用球体３３を嵌入させるた
めの環状係止溝３５が設けられている。3 and 4 show a removable ventilation joint 26, in which a socket main body 27 is connected to the end of a breathing mixed gas supply pipe 1 consisting of a hose shown in FIG. 27 is provided with an insertion hole 28 for inserting the ventilation connection fitting 2 made of a plug, and the socket body 2
An opening/closing valve 31 pressed against a valve seat 30 by a spring 29 is provided in the opening/closing valve 7 , and a valve opening member 32 pressed by the ventilation connection fitting 2 is fixed to the opening/closing valve 31 . A locking ball 33 is fitted into an engagement hole provided in the peripheral wall of the socket body 28, and a locking sleeve 34 having a large inner diameter portion and a small inner diameter portion is slidably attached to the outer periphery of the socket body 27. An annular locking groove 35 into which a locking sphere 33 is fitted is provided on the outer periphery of the ventilation connection fitting 2 .
前記ソケット本体２７とこれに設けられた各部分とによ
り通気ソケフト１７が構成され、その通気ソケット１７
と前記通気接続金具２とにより着脱自在な通気継手２６
が構成され、第４図に示すように、スリーブ３４におけ
る大内径部を係止用球体３３に対向するように配置した
状態では、通気接続金具２を挿込孔２８に対し抜挿する
ことができ、また通気接続金具２を挿込孔２８に挿入し
た状態では、通気接続金具２により開弁部材３２を介し
て開閉弁３１が押圧されて開放され、かっこの状態で、
第３図に示すようにロック用スリーブ３４の小内径部を
係止用球体３３に係合させると、通気接続金具２が通気
ソケット１７の挿込孔２８に挿入された状態にロックさ
れる。The ventilation socket 17 is constituted by the socket main body 27 and each part provided thereon, and the ventilation socket 17
and the ventilation joint 26, which can be freely attached and detached by the ventilation connection fitting 2.
As shown in FIG. 4, when the large inner diameter portion of the sleeve 34 is arranged to face the locking sphere 33, the ventilation connection fitting 2 cannot be inserted into or removed from the insertion hole 28. In addition, when the ventilation connection fitting 2 is inserted into the insertion hole 28, the opening/closing valve 31 is pressed and opened by the ventilation connection fitting 2 via the valve opening member 32, and the opening/closing valve 31 is opened in the bracket state.
As shown in FIG. 3, when the small inner diameter portion of the locking sleeve 34 is engaged with the locking sphere 33, the ventilation connection fitting 2 is locked into the insertion hole 28 of the ventilation socket 17.
第５図ないし第７図は加湿ユニット７を示すものであっ
て、ケーシング３７の一端部に、注水孔３８およびその
外側に位置する０リング３９が設けられると共に雄ねじ
部４ｏが連設され、かつその雄ねし部４０の先端部に設
けられた環状溝に０リング４１が嵌設され、前記ケーシ
ング３７の他端部に雌ねじ４２が設けられ、出口側管体
５Ａの端部に嵌合係止されたキャップ４３は前記雄ねし
部４０に螺合されている。5 to 7 show the humidifying unit 7, in which a water injection hole 38 and an O-ring 39 located outside the water injection hole 38 are provided at one end of the casing 37, and a male threaded portion 4o is continuously provided. An O-ring 41 is fitted into an annular groove provided at the tip of the male threaded portion 40, and a female thread 42 is provided at the other end of the casing 37, and is fitted into the end of the outlet tube 5A. The fixed cap 43 is screwed onto the male threaded portion 40.
活性炭フィルタ４４を収容した円形の箱体４５の底板の
中央開口部に多数の透孔４６を有する管体４７が連設さ
れ、かつ前記箱体４５および支持部材５０には０リング
４８．５３が嵌設され、連続気泡性合成樹脂スポンジか
らなる円筒状吸水材４９は前記管体４７の外側に嵌設さ
れ、さらに前記箱体４５および円筒状吸水材４９はケー
シング３７内に挿入され、またそのケーシング３７の雌
ねじ４２は支持部材５０の雄ねじに螺合されている。A tube body 47 having a large number of through holes 46 is connected to the center opening of the bottom plate of a circular box body 45 housing an activated carbon filter 44, and O-rings 48, 53 are attached to the box body 45 and the support member 50. A cylindrical water-absorbing material 49 made of an open-cell synthetic resin sponge is fitted on the outside of the tube body 47, and the box body 45 and the cylindrical water-absorbing material 49 are inserted into the casing 37 and The female thread 42 of the casing 37 is screwed into the male thread of the support member 50.
この発明の実施例に係る加湿ユニット付き混合ガス呼吸
装置を使用して、作業員が圧気潜函１３におけるマンシ
ャフト１５を昇降移動しかつ作業室１４内を移動する場
合は、作業員が加湿ユニット付き混合ガス呼吸装置をヘ
ルド５４により身体に装着し、隣り合う呼吸用混合ガス
供給管１の端部の通気ソケット１７を、通気接続金具２
および通気接続金具１８に順次つなぎ替えながら移動す
る。When a worker uses the mixed gas breathing apparatus with a humidifying unit according to an embodiment of the present invention to move up and down the man shaft 15 in the pneumatic submersible box 13 and moves inside the work chamber 14, the worker The mixed gas breathing apparatus is attached to the body using the heald 54, and the ventilation socket 17 at the end of the adjacent breathing mixed gas supply pipe 1 is connected to the ventilation connection fitting 2.
and the ventilation connection fittings 18 while moving in sequence.
次に呼吸用混合ガス供給管１の端部の通気ソケット１７
が通気接続金具２に接続されているときの呼吸用混合ガ
スの流れについて説明する。Next, the ventilation socket 17 at the end of the breathing mixed gas supply pipe 1
The flow of the breathing mixed gas when the breather is connected to the ventilation connection fitting 2 will be explained.
第８図に示す圧気潜函１３の外部に混合ガスのボンベが
あり、混合ガスはボンベの中に、通常１５０ ｋｇ ／
ｃ＋ａ程度の圧力で充填されている。前記ボンベ内の
混合ガスは、圧気潜函１３の外部で、いったん中圧（環
境圧＋７ ｋｇ／ｄ程度）に減圧されたのち、圧気潜函
１３に配置された混合ガス配管５１と、その混合ガス配
管５１に接続された呼吸用混合ガス供給管１とを通って
、加湿ユニット付き混合ガス呼吸装置における通気接続
金具２に供給される。There is a mixed gas cylinder outside the pressure envelope 13 shown in Fig. 8, and the mixed gas is usually 150 kg/kg inside the cylinder.
It is filled with a pressure of about c+a. The mixed gas in the cylinder is once reduced to medium pressure (approximately 7 kg/d of environmental pressure) outside the pneumatic submersible box 13, and then transferred to the mixed gas pipe 51 arranged in the pneumatic submersible box 13 and the mixed gas pipe. 51, and is supplied to the ventilation connection fitting 2 in the mixed gas breathing apparatus with humidification unit.
バイパス管路１０のガス流通抵抗は主送気管路５のガス
流通抵抗よりも太き（設定されているので、前記通気接
続金具２に供給された呼吸用混合ガスは、主送気管路５
における逆止弁１９．フィルタ２１および開閉弁６を経
て加湿ユニット７を通過する際に、その力Ｕ湿ユニント
７により加湿され、その加湿ユニット７により加湿され
た呼吸用混合ガスは、逆止弁８を通って減圧弁４に送ら
れ、ここで低圧（環境圧＋０．０１ ｋｇ／ｃｆｆｌ程
度）に減圧されたのち呼吸マスク３に供給される。The gas flow resistance of the bypass pipe 10 is set to be thicker than that of the main air supply pipe 5, so that the breathing mixed gas supplied to the ventilation connection fitting 2 flows through the main air supply pipe 5.
Check valve 19. When passing through the humidifying unit 7 via the filter 21 and the on-off valve 6, the mixed gas for breathing is humidified by the humidifying unit 7, and the breathing mixture gas humidified by the humidifying unit 7 passes through the check valve 8 and passes through the pressure reducing valve. 4, where it is reduced to a low pressure (approximately environmental pressure + 0.01 kg/cffl) and then supplied to the respiratory mask 3.
次に加湿ユニット７内に水を補給する場合の操作および
混合ガスの流れについて説明する。Next, the operation for replenishing water into the humidifying unit 7 and the flow of mixed gas will be explained.
まず開閉弁６を閉したのち圧抜き弁９を開くと、開閉弁
６と逆止弁８との間の主送気管路５内にある中圧の加圧
混合ガスおよび加湿ユニット７内の中圧の混合ガスが、
環境圧に等しくなるまで排出され、前記通気接続金具２
に供給された呼吸用混合ガスは、逆止弁１９． フィル
タ２１およびバイパス管路１０の逆止弁１２ならびに減
圧弁４を通って呼吸マスク３に流れる。First, when the on-off valve 6 is closed and then the pressure release valve 9 is opened, the medium-pressure pressurized mixed gas in the main air supply pipe 5 between the on-off valve 6 and the check valve 8 is released. The pressure of the mixed gas is
The vent connection fitting 2 is discharged until equal to the environmental pressure.
The breathing mixed gas supplied to the check valve 19. It flows through the filter 21 and the check valve 12 of the bypass line 10 and the pressure reducing valve 4 to the respiratory mask 3 .
次に加温ユニ７ト７におけるキャップ４３をケーシング
３７から螺脱して第７図に示すように、スポイト５２等
により加湿ユニット７の円筒状吸水材４９に注水し、次
いでキャップ４３をケーシング３７に桿合し、続いて圧
抜き弁９を閉じたのち、開閉弁６を開放すると、通気接
続金具２に供給された呼吸用混合ガスは、再び主送気管
路５における逆止弁１９．フィルタ２０．開閉弁６．加
湿ユニット７、逆止弁８および減圧弁４を通って呼吸マ
スク３に供給される。Next, the cap 43 of the heating unit 7 is unscrewed from the casing 37, and as shown in FIG. After the pressure relief valve 9 is closed and the opening/closing valve 6 is opened, the breathing mixed gas supplied to the ventilation connection fitting 2 passes through the check valve 19. in the main air supply pipe line 5 again. Filter 20. Open/close valve6. It is supplied to the respiratory mask 3 through the humidification unit 7 , the check valve 8 and the pressure reducing valve 4 .
何等かの理由により、呼吸用混合ガス供給管１が切断し
たり、通気接続金具２および通気ソケント１７からなる
通気継手が破損したりして、作業員への混合ガスの供給
が不可能になった場合は、安全用混合ガスボンベ２２に
付属する開閉弁２５を開放すると、前記混合ガスボンベ
２２内の高圧混合ガスは、減圧弁２４により中圧に減圧
されたのち、非常用混合ガス供給管路２３から主送気管
路５における逆止弁１９とフィルタ２１との間の部分に
供給され、次いで前述のようにフィルタ２１、開閉弁６
．加湿ユニット７、逆止弁８および減圧弁４を通って呼
吸マスク３に供給される。For some reason, the breathing mixed gas supply pipe 1 is cut, or the ventilation joint consisting of the ventilation connection fitting 2 and the ventilation socket 17 is damaged, making it impossible to supply mixed gas to workers. In this case, when the on-off valve 25 attached to the safety mixed gas cylinder 22 is opened, the high pressure mixed gas in the mixed gas cylinder 22 is reduced to medium pressure by the pressure reducing valve 24, and then transferred to the emergency mixed gas supply pipe 23. is supplied to the part between the check valve 19 and the filter 21 in the main air supply pipe line 5, and then the filter 21 and the on-off valve 6 as described above.
．． It is supplied to the respiratory mask 3 through the humidification unit 7 , the check valve 8 and the pressure reducing valve 4 .
この発明を実施する場合、フィルタ２１および活性炭フ
ィルタ４４のうち何れか一方を省略してもよく、あるい
は双方のフィルタ２１’、４４を省略してもよい。また
この発明の加湿ユニット付き混合ガス呼吸装置は、圧気
潜函以外の圧気環境作業を行う場合にも使用することが
できる。When implementing this invention, either one of the filter 21 and the activated carbon filter 44 may be omitted, or both filters 21' and 44 may be omitted. Furthermore, the mixed gas breathing apparatus with a humidifying unit of the present invention can also be used when performing work in a pressurized environment other than a pressurized envelope.
〔発明の効果］
この発明は前述のように構成されているので、以下に記
載するような効果を奏する。[Effects of the Invention] Since the present invention is configured as described above, it produces the following effects.
加湿ユニット７内に水を補給する場合は、単に開閉弁６
を閉じたのち圧抜き弁９を開放すると、加湿ユニット７
内の中圧混合ガスが圧抜き弁９を通って排出され、通気
接続金具２に供給された呼吸用混合ガスは、逆止弁１２
を有するバイパス管路１０および減圧弁４を通って呼吸
マスク３に供給されるので、作業員は、混合ガスを呼吸
しながら、加温ユニント７を開放してその加４ユニット
７の中に水を補給することができ、かつ水の補給を終了
して加湿ユニット７を閉したのちは、単に圧抜き弁９を
閉じると共に開閉弁６を開放することにより、通気接続
金具２に供給された呼吸用混合ガスを、主送気管路５に
おける加湿ユニット７により加温しながら、減圧弁４に
より減圧して呼吸マスク３に供給することができる。When replenishing water into the humidifying unit 7, simply open/close the valve 6.
When the pressure relief valve 9 is opened after closing the humidifying unit 7
The medium-pressure mixed gas inside is discharged through the pressure relief valve 9, and the breathing mixed gas supplied to the ventilation fitting 2 is discharged through the check valve 12.
is supplied to the respiratory mask 3 through a bypass line 10 having a After completing the water supply and closing the humidifying unit 7, simply close the pressure release valve 9 and open the on-off valve 6 to remove the breath supplied to the ventilation connection fitting 2. The mixed gas can be supplied to the respiratory mask 3 while being heated by the humidifying unit 7 in the main air supply line 5 and reduced in pressure by the pressure reducing valve 4 .
第１図ないし第７図はこの発明の一実施例を示すもので
あって、第１図は圧気作業用加ンＷユニット付き混合ガ
ス呼吸装置の展開図、第２図は加湿ユニット付き混合ガ
ス呼吸装置の回路図、第３図は通気継手を接続した状態
を示す縦断側面図、第４図は通気継手を分離した状態を
示す縦断側面図、第５図は加湿ユニット付近を示す縦断
側面図、第６図は加湿ユニット付近を分解して示す縦断
側面図、第７図は加湿ユニット内に水を補給している状
態を示す縦断側面図である。第８図は呼吸用混合ガス供
給管を有する圧気潜函の縦断側面図である。
図において、１は呼吸用混合ガス供給管、２は通気接続
金具、３は呼吸マスク、４は減圧弁、５は主送気管路、
６は開閉弁、７は加湿ユニット、８は逆止弁、９は圧抜
き弁、１０はバイパス管路、１１は閉止用ばね、１２は
逆止弁、Ｉ３は圧気潜函、１４は作業室、２１はフィル
タ、２２は安全用混合ガスボンへ、２３は非常用混合ガ
ス供給管路、２４は減圧弁、２５は開閉弁、２６は通気
得手、２９はばね、３ｏは弁座、３１は開閉弁、３２は
開弁部材、３７はケーシング、３８は注水口、４０は雄
ねし部、４２は塀ねし、４３はキャンプ、４５は箱体、
４６は透孔、４７は管体、４９は円筒状吸水材、５１は
混合ガス配管、５２はスポイトである。Figures 1 to 7 show one embodiment of the present invention, in which Figure 1 is an exploded view of a mixed gas breathing apparatus with a humidifying unit for pressurized work, and Figure 2 is a mixed gas breathing apparatus with a humidifying unit. Circuit diagram of the breathing apparatus, Figure 3 is a vertical side view showing the state where the ventilation joint is connected, Figure 4 is a vertical side view showing the state where the ventilation joint is separated, and Figure 5 is a vertical side view showing the vicinity of the humidifying unit. , FIG. 6 is an exploded longitudinal side view showing the vicinity of the humidifying unit, and FIG. 7 is a longitudinal side view showing a state in which water is being replenished into the humidifying unit. FIG. 8 is a longitudinal sectional side view of a pneumatic envelope having a breathing mixed gas supply pipe. In the figure, 1 is a breathing mixed gas supply pipe, 2 is a ventilation connection fitting, 3 is a breathing mask, 4 is a pressure reducing valve, 5 is a main air supply pipe,
6 is an on-off valve, 7 is a humidifying unit, 8 is a check valve, 9 is a pressure release valve, 10 is a bypass pipe, 11 is a closing spring, 12 is a check valve, I3 is a pressure air box, 14 is a work chamber, 21 is a filter, 22 is to a safety mixed gas cylinder, 23 is an emergency mixed gas supply pipe, 24 is a pressure reducing valve, 25 is an on-off valve, 26 is a ventilation handle, 29 is a spring, 3o is a valve seat, 31 is an on-off valve , 32 is a valve opening member, 37 is a casing, 38 is a water inlet, 40 is a male part, 42 is a fence, 43 is a camp, 45 is a box body,
46 is a through hole, 47 is a tube, 49 is a cylindrical water absorbing material, 51 is a mixed gas pipe, and 52 is a dropper.
Claims (1)
続金具２と呼吸マスク３に接続された減圧弁４とが、主
送気管路５により接続され、その主送気管路５に、上流
側から下流側に向かって、開閉弁６と開放自在な加湿ユ
ニット７と逆止弁８とが順次介在され、前記開閉弁６と
加湿ユニット７との間において主送気管路５に開閉自在
な圧抜き弁９が接続され、バイパス管路１０の一端部が
前記通気接続金具２と開閉弁６との間において前記主送
気管路５に接続されると共に、前記バイパス管路１０の
他端部が前記減圧弁４と逆止弁８との間において主送気
管路５に接続され、前記バイパス管路１０に閉止用ばね
１１を備えている逆止弁１２が介在されている圧気作業
用加湿ユニット付き混合ガス呼吸装置。A ventilation connection fitting 2 detachably connected to the respiratory mixed gas supply pipe 1 and a pressure reducing valve 4 connected to the breathing mask 3 are connected by a main air supply pipe 5, and an upstream An on-off valve 6, an openable humidification unit 7, and a check valve 8 are interposed in order from the side toward the downstream side, and between the on-off valve 6 and the humidification unit 7, the main air supply pipe 5 is provided with an openable and openable humidification unit 7. A pressure relief valve 9 is connected, one end of a bypass pipe 10 is connected to the main air supply pipe 5 between the ventilation connection fitting 2 and the on-off valve 6, and the other end of the bypass pipe 10 is connected to the main air supply pipe 5 between the ventilation connection fitting 2 and the on-off valve 6. is connected to the main air supply line 5 between the pressure reducing valve 4 and the check valve 8, and a check valve 12 having a closing spring 11 is interposed in the bypass line 10. Mixed gas breathing apparatus with unit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63239684A JPH0716521B2 (en) | 1988-09-27 | 1988-09-27 | Mixed gas breathing apparatus with humidifying unit for pneumatic work |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63239684A JPH0716521B2 (en) | 1988-09-27 | 1988-09-27 | Mixed gas breathing apparatus with humidifying unit for pneumatic work |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0288082A true JPH0288082A (en) | 1990-03-28 |
| JPH0716521B2 JPH0716521B2 (en) | 1995-03-01 |
Family
ID=17048374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63239684A Expired - Lifetime JPH0716521B2 (en) | 1988-09-27 | 1988-09-27 | Mixed gas breathing apparatus with humidifying unit for pneumatic work |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0716521B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023603A1 (en) * | 2011-08-16 | 2013-02-21 | 陕西坚瑞消防股份有限公司 | Explosion venting device with nozzles |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4829298A (en) * | 1971-08-19 | 1973-04-18 | ||
| JPS607498A (en) * | 1983-06-28 | 1985-01-16 | 富士通株式会社 | Word voice recognition equipment and method |
-
1988
- 1988-09-27 JP JP63239684A patent/JPH0716521B2/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4829298A (en) * | 1971-08-19 | 1973-04-18 | ||
| JPS607498A (en) * | 1983-06-28 | 1985-01-16 | 富士通株式会社 | Word voice recognition equipment and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013023603A1 (en) * | 2011-08-16 | 2013-02-21 | 陕西坚瑞消防股份有限公司 | Explosion venting device with nozzles |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0716521B2 (en) | 1995-03-01 |
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