JPS6312932A - Low pressure environmental test room - Google Patents
Low pressure environmental test roomInfo
- Publication number
- JPS6312932A JPS6312932A JP61157394A JP15739486A JPS6312932A JP S6312932 A JPS6312932 A JP S6312932A JP 61157394 A JP61157394 A JP 61157394A JP 15739486 A JP15739486 A JP 15739486A JP S6312932 A JPS6312932 A JP S6312932A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- chamber
- low
- solenoid valve
- room
- 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
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 230000007613 environmental effect Effects 0.000 title claims description 12
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000001514 detection method Methods 0.000 claims description 7
- 230000001105 regulatory effect Effects 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000002411 adverse Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000011084 recovery Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 206010025482 malaise Diseases 0.000 description 1
Landscapes
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Testing Resistance To Weather, Investigating Materials By Mechanical Methods (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野」
本発明は、室内を低圧に保って各種試験を打なう低圧環
境試験室に関し、特に入退室用の前室の調圧制御をｉ１
１室内の作業者にとって安全に行なうことができる低圧
環境試験室に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a low-pressure environmental test chamber in which various tests are conducted while maintaining a low pressure inside the room, and in particular, the pressure regulation control of the front room for entering and leaving the room is controlled by i1.
This invention relates to a low-pressure environmental test chamber that can be conducted safely for workers in the room.
［ｆ米の技術］
高地での走行を想定した自動車等の性１＠試験は、室内
を大気圧以下の低圧に保った低圧試験室に目！１２１ル
等を収容して行なわれる。この低圧試験室では、作業者
が極端な圧力変動にさらされることなく安全に試験室内
に入室１７たり、逆に試験室から安全に退室できるよう
にするための予備室となる前室が設けられている。また
この前室は、試験室内の気圧が急激に偽下したり、火災
発生などの危険時に作業者が急きょ退去して安全を図れ
るようにするためにも設けられている。[F-American technology] Testing of automobiles, etc. designed to drive at high altitudes takes place in a low-pressure test chamber that maintains the interior at a low pressure below atmospheric pressure! It is held by accommodating 121 ru etc. This low-pressure test chamber has an anteroom that serves as a preliminary room so that workers can safely enter the test chamber17 and exit the test chamber safely without being exposed to extreme pressure fluctuations. ing. This front room is also provided so that workers can evacuate quickly to ensure safety in the event of a sudden fall in the atmospheric pressure in the test chamber or a fire outbreak.
このような前室では、一端が大気圧側に関放し他端が市
室内に開放した通気管の中途部に復圧用の′ｒｔ１？ａ
弁を設けるようにしており、一端が低圧試験室内に開放
し他端が前室内に開放した通交管の中途部に減圧用の電
磁弁ｔｃ設けるようにしている。In such a front room, a ventilation pipe with one end open to the atmospheric pressure side and the other end open into the city room is installed in the middle of the ventilation pipe for pressure recovery. a
A solenoid valve tc for depressurization is provided in the middle of a communication pipe whose one end is open to the low-pressure test chamber and the other end is open to the front chamber.
作業者が低圧試験室へたとえば入室する場合は、上記減
圧用の電磁弁を開き、低圧試験室と均圧化した前室内に
一時作業者が留まって１体を慣らしたのち試験室内へ入
室するようにしている。For example, when a worker enters a low-pressure test chamber, he or she opens the pressure reducing solenoid valve and temporarily stays in the front chamber, which is pressure equalized with the low-pressure test chamber, to acclimatize the animal before entering the test chamber. That's what I do.
また低圧試験室から退室する場合は、上記復圧用の電磁
弁を開いて前室の気圧を大気圧と気圧化し、作業者は調
圧したこの前室を介して退室するようにしている。When leaving the low-pressure test chamber, the pressure return solenoid valve is opened to reduce the pressure in the front chamber to atmospheric pressure, and the worker exits the chamber through the regulated front chamber.
［発明が解決しようとする問題点Ｊ
ところで従来は、ヒ記減圧用の電磁弁または復圧用の電
磁弁を単に開くだけで前室内を調圧していることから、
前室内に急激な気圧の変化が生じるという不具合があっ
た。第３図には、たとえば減圧用の″ｒｒＬ磁弁を開け
て前圧内の気圧を減圧した時の時間経過に伴う気圧の変
化が示されている。第３図のグラフに示されるように、
ｉｔ電磁弁開けたのち短時間で気圧が急激に低下するよ
うになる。[Problem to be Solved by the Invention J] Conventionally, the pressure in the front chamber was regulated by simply opening the solenoid valve for depressurization or the solenoid valve for repressurization as described in (h).
There was a problem in which a sudden change in air pressure occurred in the vestibule. FIG. 3 shows the change in atmospheric pressure over time when, for example, the "rrL magnetic valve for pressure reduction is opened to reduce the atmospheric pressure in the front pressure. As shown in the graph of FIG. ,
After opening the solenoid valve, the air pressure will drop rapidly in a short time.
このように急激に気圧が変化すると、前室内の作業者が
気分を悪くするなど１人体に悪影響を及ぼすようになる
。Such a sudden change in atmospheric pressure will have an adverse effect on the human body, such as making the workers in the vestibule feel unwell.
そこで本発明は、このような従来の問題点を解決するた
めに提案されたものであり１人体に悪影響を及ぼすこと
なく前室内を調圧；ＩＩ ｍすることができる低圧環境
試験室を提供することを目的とする。Therefore, the present invention was proposed to solve these conventional problems, and provides a low-pressure environmental test chamber that can adjust the pressure inside the front chamber without adversely affecting the human body. The purpose is to
Ｅ問題点を解決するためのｆ段」
この目的を達成するために本発明の低圧環境試験室は、
室内を低圧に保って各種試験を行なう低圧室とこの低圧
室への入退室用の前室とを備えた低圧環境試験室におい
て、一端が大気圧側に開放し他端が上記前記内に開放し
た第１の通気管と、この第１の通気管の中途部に設けた
第１の電磁弁と、一端が低圧室に開放し他端が上記前室
内に開放した第２の通気管と、この第２の通気管の中途
部に設けた０′Ｓ２の電磁弁と、上記前室内の気圧を検
知するセンサと、このセンサの検知出力に基づき上記第
１または第２の電磁弁をオ５、ン・才）鰻り返し制御し
上記前室内を調圧する制御部とを有することを特徴とす
る。To achieve this objective, the low-pressure environmental test chamber of the present invention has the following features:
In a low-pressure environmental test chamber that is equipped with a low-pressure chamber in which various tests are performed while keeping the interior at low pressure, and a front chamber for entering and exiting the low-pressure chamber, one end is open to atmospheric pressure and the other end is open to the above-mentioned interior. a first solenoid valve provided in the middle of the first ventilation pipe; a second ventilation pipe with one end open to the low pressure chamber and the other end open into the front chamber; A 0'S2 solenoid valve provided in the middle of this second ventilation pipe, a sensor that detects the atmospheric pressure in the front chamber, and a sensor that operates the first or second solenoid valve based on the detection output of this sensor. , n/sai) A control section that performs eel return control and regulates the pressure inside the front chamber.
［作用］
したがって本発明では、と記制御ＰＢにより第１または
第２のＴｆｆ、磁弁をオン・オフ繰り返し制御できるこ
とから、急激な気圧の変化が起、−ることなく前圧内を
段階的に調圧（ｇ圧または復圧）することができる。[Function] Therefore, in the present invention, since the first or second Tff and the magnetic valve can be repeatedly controlled on and off by the control PB, the prepressure can be changed step by step without causing a sudden change in the atmospheric pressure. The pressure can be adjusted (g pressure or return pressure).
［実施例Ｊ 以下１本発明の実施例を図面に基づき詳細に説明する。[Example J EMBODIMENT OF THE INVENTION Below, one embodiment of the present invention will be described in detail based on the drawings.
第１図は１本発明の低圧環境試験室の構成図である。FIG. 1 is a block diagram of a low-pressure environmental test chamber according to the present invention.
この第１図で上記低圧環境試験室には、室内を低圧に保
って各種試験が行な゛われる低圧室１と、この低圧室ｌ
の入退室用に使用される小室の前室２が設けられている
。この前室２には、前室ｌへの゛入退室用の扉３と低圧
室ｌへの入退室用の扉４が設けられている。In Fig. 1, the low-pressure environmental test chamber includes a low-pressure chamber 1 in which various tests are conducted while keeping the chamber at a low pressure, and a low-pressure chamber l.
A small front room 2 is provided for entering and exiting the room. The front chamber 2 is provided with a door 3 for entering and exiting the front chamber 1 and a door 4 for entering and exiting the low pressure chamber 1.
また一端が大気圧側に開放し他端が前室２内に開放した
通気管５が設けられており、この通気管５の中途部には
復圧用の電磁弁６が設けられている。また一端が低圧室
ｌに開放し他端が前室２内に開放した通気管７が設けら
れており、この通気′Ｒ７の中途部には減圧用の電磁弁
８が設けられている。Further, a vent pipe 5 is provided with one end open to the atmospheric pressure side and the other end open into the front chamber 2, and a solenoid valve 6 for pressure recovery is provided in the middle of the vent pipe 5. A vent pipe 7 is provided with one end open to the low pressure chamber 1 and the other end open into the front chamber 2, and a solenoid valve 8 for pressure reduction is provided in the middle of this vent 'R7.
上記電磁弁６を開くことにより前室２内が復圧され、大
気圧と均圧化される。また電磁弁８を開くことで前室２
内が減圧され、低圧室ｌ内と均圧化される。By opening the electromagnetic valve 6, the pressure inside the front chamber 2 is restored and the pressure is equalized with the atmospheric pressure. Also, by opening the solenoid valve 8, the front chamber 2
The pressure inside is reduced and the pressure is equalized with the inside of the low pressure chamber 1.
また前室２内には、前室２内の気圧を検知するセンサ９
が設けられており、このセンサ９の検知信号が検出部１
０に送られる。この検出ｆｉｌ。In addition, a sensor 9 for detecting the atmospheric pressure in the front chamber 2 is provided in the front chamber 2.
is provided, and the detection signal of this sensor 9 is sent to the detection section 1.
Sent to 0. This detection fil.
の出力は、電磁弁６，８の開閉を制御する制御部１１に
供給される。この制御部１１には、検出部ＩＯの出力に
基づいて電磁弁６または電磁弁８の開閉を繰り返し制御
するプログラム設定器が設けられている。The output is supplied to a control section 11 that controls opening and closing of the solenoid valves 6 and 8. The control section 11 is provided with a program setting device that repeatedly controls opening and closing of the solenoid valve 6 or 8 based on the output of the detection section IO.
また前室２内には、」；記制御部１１に接続された表示
灯１２が設けられており、前室２内の復圧または減圧の
完了時にこの表示灯１２が点灯される。Further, an indicator light 12 connected to the control unit 11 is provided in the front chamber 2, and this indicator light 12 is turned on when pressure restoration or depressurization in the front chamber 2 is completed.
このように構成される低圧環境試験室では、前室２がた
とえば減圧される場合、上記’ｉｔ磁弁８がプログラム
設定器を内蔵した上記制御部１！によって繰り返しオン
・オフされることから、前圧２内は従来のように短時間
で急激に減圧されることはなく、第２図に示すように直
線に近い減圧特性で減圧されるようになる。In the low-pressure environmental test chamber configured as described above, when the front chamber 2 is depressurized, for example, the 'it magnetic valve 8 is set to the control section 1 with a built-in program setting device! Because it is repeatedly turned on and off by .
また前室２内の復圧時も同様で、復圧用の電磁弁６が上
記制御部１１によってオン・オフ繰り返し制御され開閉
が繰り返されることから、直線に近い復圧特性が得られ
るようになる。The same is true when restoring the pressure inside the front chamber 2; the solenoid valve 6 for restoring pressure is repeatedly controlled on and off by the control section 11, and opening and closing are repeated, so that a near-linear restoring characteristic can be obtained. .
［発明の効果］
以上説明したように本発明では、前室内の気圧を調圧（
′ＦＬ圧または復圧）する際に、前室内の気圧を大気圧
と均圧化する電磁弁または低圧試験室と均圧化する１１
ｔｍ弁を繰り返しオン会オフして調圧を行なうようにし
ていることから。[Effects of the Invention] As explained above, in the present invention, the atmospheric pressure inside the front chamber is regulated (
'FL pressure or repressurization), a solenoid valve that equalizes the pressure in the front chamber with atmospheric pressure or a low pressure test chamber 11
This is because the tm valve is repeatedly turned on and off to regulate the pressure.
１１１室内の調圧を徐々に行なうことができ、前室内の
作業者の人体への影響を軽減できる。The pressure inside the 111 room can be gradually adjusted, and the impact on the human body of the worker in the front room can be reduced.
４図面の簡単な説１ｊ
第１図は本発明の一実施例の低圧環境試験室の構成図、
ｔ５２図は上記低圧環境試験室のｉｉｉ室内の減圧特性
を示す特性図、第３図は従来の減圧特性を示す特性図で
ある。4 Brief Description of Drawings 1j Figure 1 is a configuration diagram of a low-pressure environmental test chamber according to an embodiment of the present invention;
Figure t52 is a characteristic diagram showing the depressurization characteristics in room iii of the low-pressure environment test chamber, and Fig. 3 is a characteristic diagram showing the conventional depressurization characteristics.
図中
１目低圧室 ２嗜・前室
３．４−−Ｊ）ｊ ５，７一−通％管６．８・
拳電磁弁 ９・・センサ
１０・・検出部 １１・φ制御部１２・・表示灯In the figure, 1st item is low pressure chamber 2nd front chamber 3.4--J)j 5,7 1st-percent tube 6.8
Fist solenoid valve 9...Sensor 10...Detection section 11.φ control section 12...Indicator light
Claims (1)
室への入退室用の前室とを備えた低圧環境試験室におい
て、一端が大気圧側に開放し他端が上記前室内に開放し
た第１の通気管と、この第１の通気管の中途部に設けた
第１の電磁弁と、一端が低圧室に開放し他端が上記前室
内に開放した第２の通気管と、この第２の通気管の中途
部に設けた第２の電磁弁と、上記前室内の気圧を検知す
るセンサと、このセンサの検知出力に基づき上記第１ま
たは第２の電磁弁をオン、オフ繰り返し制御し上記前室
内を調圧する制御部とを有することを特徴とする低圧環
境試験室。In a low-pressure environmental test chamber that is equipped with a low-pressure chamber where various tests are performed while keeping the room at low pressure, and an anteroom for entering and exiting this low-pressure chamber, one end is open to atmospheric pressure and the other end is open to the anteroom. a first solenoid valve provided in the middle of the first ventilation pipe; a second ventilation pipe with one end open to the low pressure chamber and the other end open into the front chamber; A second solenoid valve provided in the middle of the second ventilation pipe, a sensor that detects the atmospheric pressure in the front chamber, and the first or second solenoid valve is turned on or off based on the detection output of this sensor. A low-pressure environmental test chamber comprising: a control section that repeatedly controls and regulates the pressure inside the front chamber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157394A JPS6312932A (en) | 1986-07-03 | 1986-07-03 | Low pressure environmental test room |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61157394A JPS6312932A (en) | 1986-07-03 | 1986-07-03 | Low pressure environmental test room |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6312932A true JPS6312932A (en) | 1988-01-20 |
| JPH0343577B2 JPH0343577B2 (en) | 1991-07-03 |
Family
ID=15648672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61157394A Granted JPS6312932A (en) | 1986-07-03 | 1986-07-03 | Low pressure environmental test room |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6312932A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334913B1 (en) | 1998-12-28 | 2002-01-01 | Kobe Steel, Ltd. | Corrosion-resistant titanium alloy |
-
1986
- 1986-07-03 JP JP61157394A patent/JPS6312932A/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6334913B1 (en) | 1998-12-28 | 2002-01-01 | Kobe Steel, Ltd. | Corrosion-resistant titanium alloy |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0343577B2 (en) | 1991-07-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
| R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
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| EXPY | Cancellation because of completion of term |