JPS59192940A - Smoke meter with purging device - Google Patents
Smoke meter with purging deviceInfo
- Publication number
- JPS59192940A JPS59192940A JP58067299A JP6729983A JPS59192940A JP S59192940 A JPS59192940 A JP S59192940A JP 58067299 A JP58067299 A JP 58067299A JP 6729983 A JP6729983 A JP 6729983A JP S59192940 A JPS59192940 A JP S59192940A
- Authority
- JP
- Japan
- Prior art keywords
- air
- smoke meter
- exhaust gas
- smoke
- calibration
- 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
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
-
- G—PHYSICS
- G08—SIGNALLING
- G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
- G08B17/00—Fire alarms; Alarms responsive to explosion
- G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
- G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas
- G08B17/113—Constructional details
Landscapes
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optical Measuring Cells (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は自動車から排出される排出ガスの不透過度を測
定するパージ装置付スモークメータに関するものである
。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a smoke meter with a purge device for measuring the degree of impermeability of exhaust gas discharged from an automobile.
（従来技術）
自動車力・ら排出される排出ガスがどのくらい汚れてい
るか、またはエンジンの燃焼状態の良否の判定を示す指
針として、排出ガス中に含まれる固形粒子を採り上げ、
粒子の量と透過光量との関係式より不透過度として表示
する。この不透過度を調査する装置にも種々あるが、空
気中に投光された光束の散乱の程度により評価する透過
光式スモークメータもその１つである。(Prior art) Solid particles contained in the exhaust gas are used as a guideline to determine how polluted the exhaust gas is from automobiles, or whether the combustion state of the engine is good or bad.
It is expressed as opacity based on the relational expression between the amount of particles and the amount of transmitted light. There are various devices for investigating this degree of opacity, and one of them is a transmitted light type smoke meter that evaluates the degree of scattering of a luminous flux projected into the air.
透過光式スモークメータのＵｌｉｌ定原卯はＬａｍｂ
ｅ ｒ ｔ−Ｂｅｅｒの式に基づき、４全清浄空気にお
ける透過光量、φＳを排出ガスにお１７る透過光量、ｋ
を党吸収係数輛）、Ｌを有効光路長（ｍ）、Ｖｔ−元ビ
ーム内のスモーク体積（ｍ’） 、Ａ ｋ光ビームの面
Ｅｒ、 （ｍＦ）とすると、スモークメータの指示値は
、上述の不透過度Ｎとして次式により表わさ第１式で示
されるように基準値φは清浄な空気に対する透過光量が
必要であり、特に同一の測定装置を使用した場合に清浄
な空気のがわりに汚れた空気で測定することがないよう
に注意しなければならない。Transmitted light smoke meter Ulil Sadahara Uwa Lamb
Based on the t-Beer formula, 4 the amount of transmitted light in completely clean air, φS the amount of transmitted light in exhaust gas, k
When L is the absorption coefficient (m), L is the effective optical path length (m), Vt is the smoke volume in the original beam (m'), and A is the surface of the light beam (Er) (mF), the reading of the smoke meter is: The above-mentioned opacity N is expressed by the following formula. As shown in the first formula, the reference value φ requires the amount of transmitted light with respect to clean air, and especially when the same measuring device is used, Care must be taken not to perform measurements in dirty air.
現在使用さ八ている全流透過元式スモークメータでは、
車輛の排気管等を接続した排出ガス導入管からスモーク
室へ排出ガスを導ひき、そのスモーク室において元ビー
ムの透過量を測定する。従って、スモークメータの較正
時には、汚れのない清浄な空気をスモーク室（て充満さ
せ、光ビームの透過量を測定し、この状態におけるφが
透過光４にの基準となる。ところが連続測定の際に、中
間時点の較正で、エンジンを停止１゜ても配管内に溜っ
た排出ガスが抜は切らず、誤−止った較正をして、測定
の精度を悪くしてしまう。The full-flow permeation type smoke meter currently in use is
Exhaust gas is introduced into a smoke chamber through an exhaust gas inlet pipe connected to a vehicle's exhaust pipe, etc., and the amount of transmission of the original beam is measured in the smoke chamber. Therefore, when calibrating a smoke meter, the smoke chamber is filled with clean air and the amount of light beam transmitted is measured. φ in this state becomes the reference for the transmitted light 4. However, when performing continuous measurements, Furthermore, during intermediate calibration, the exhaust gas accumulated in the piping does not drain out even after the engine is stopped for 1 degree, resulting in incorrectly stopped calibration and poor measurement accuracy.
（発明の目的）
本発明はスモークメータに関する上記欠点を改善するた
めになされたもので、スモークメータのパージ装置を設
けることにより、較正時におけるスモークメータのパー
ジを行ない、測定前にあらかじめ測定装置内を清浄な空
気で充たし、較正作業の誤ま！７全防止し、測定精度全
向上させるパージ装置付スモークメータを提供するもの
である。(Object of the Invention) The present invention has been made in order to improve the above-mentioned drawbacks regarding smoke meters, and by providing a smoke meter purge device, the smoke meter can be purged during calibration, and the inside of the measuring device can be purged before measurement. Fill it with clean air to avoid calibration errors! 7. To provide a smoke meter with a purge device that completely prevents the above problems and improves measurement accuracy.
（発明の構成）
本発明のパージ装置付スモークメータの特徴は、スモー
クメータの入口部に排出ガス導入管と空気導入管を接続
し、前記排出ガス導入管には排出ガス遮断弁を設け、市
記空気導入管には送風機あるいは空気遮断弁の少なくと
も一方を設け、前記排出ガス遮断弁と前記送風機首たは
前記遮断弁に操作、制御装置を接続したことである。(Structure of the Invention) The smoke meter with a purge device of the present invention is characterized in that an exhaust gas introduction pipe and an air introduction pipe are connected to the inlet of the smoke meter, and an exhaust gas cutoff valve is provided on the exhaust gas introduction pipe. The air introduction pipe is provided with at least one of a blower or an air cutoff valve, and an operation and control device is connected to the exhaust gas cutoff valve, the blower neck, or the cutoff valve.
（作用）
本発明は上記のように構成したため、スモークメークへ
の導入気体を、空気遮断弁または送風機を作動すること
によって清浄な空気をスモークメータに導入するか、空
気遮断弁を閉じ、排出ガス遮断弁を開いて排出ガスをス
モークメータに導入することにより、必要に応じて切り
換えることができるようになる。このため、スモークメ
ータの較正時には、清浄な空気をスモークメータ内部に
導入して、清浄な雰囲気に対する測定ができ、排出ガス
の測定時には、スモークメータに排出ガスを導入して通
常の不透過度測定ができるようになる。このようにスモ
ークメータ内部に任意に清浄な空気が導入できるように
なるため不透過度の較正が精度良くできるようになり、
基準精度が向上するため一般の不透過度の測定精度を向
上させることができるようになる。(Function) Since the present invention is configured as described above, clean air is introduced into the smoke meter by operating the air cutoff valve or blower, or the air cutoff valve is closed and the exhaust gas is By opening the isolation valve and introducing the exhaust gas into the smoke meter, it can be switched as needed. Therefore, when calibrating a smoke meter, clean air can be introduced into the smoke meter to perform measurements in a clean atmosphere, and when measuring exhaust gas, the exhaust gas can be introduced into the smoke meter to perform normal opacity measurements. You will be able to do this. In this way, clean air can be introduced into the smoke meter at will, making it possible to calibrate the opacity with high precision.
Since the standard accuracy is improved, it becomes possible to improve the general opacity measurement accuracy.
（実施例） ｖ下、本発明の実施例につき図により説明する。(Example) Embodiments of the present invention will be explained below with reference to the drawings.
通常の工場内における排出ガス不透過度の測定に用いら
れるものとしては、第１図に示すように、スモークメー
％ｌの入口部で排出ガス導入管２と空気導入管３を合流
させて合流管４としてスモークメータ１に接続させる。As shown in Fig. 1, the exhaust gas inlet pipe 2 and the air inlet pipe 3 are joined at the inlet of the smoke meter to meet the exhaust gas impermeability measurement in a normal factory. It is connected to the smoke meter 1 as a pipe 4.
排出ガス導入管２には合流管４の前側に排出ガス遮断弁
５を設ける。空気導入管３には入口部に遮断弁付送風機
６を設け、清浄な空気を吸い込めるようにする。排出ガ
ス遮断弁５と遮断弁付送風機６とは制御装置７からの出
力を受けられるように配線され、この制御装置７には押
しボタン式のスイッチ８，９が接続さｎる。スモークメ
ータの出口部には排気管１０が取り付けられる。The exhaust gas introduction pipe 2 is provided with an exhaust gas cutoff valve 5 on the front side of the merging pipe 4. A blower 6 with a shutoff valve is provided at the inlet of the air introduction pipe 3 so that clean air can be sucked in. The exhaust gas cutoff valve 5 and the blower with cutoff valve 6 are wired so as to receive output from a control device 7, and push button switches 8 and 9 are connected to the control device 7. An exhaust pipe 10 is attached to the outlet of the smoke meter.
このように構成されｆｃ架装置は、スモークメータ１の
較正時に、スイッチ８を押し、排出ガス導入管２に設け
られた排出ガス遮断弁５を閉じ、空気導入管３の入口部
に設けられた遮断弁付送風機６を作動させて清浄な空気
を吸い込む。In the FC rack device configured in this way, when calibrating the smoke meter 1, the switch 8 is pressed, the exhaust gas cutoff valve 5 provided at the exhaust gas introduction pipe 2 is closed, and the exhaust gas cutoff valve 5 provided at the inlet of the air introduction pipe 3 is closed. The blower 6 with a shutoff valve is operated to suck in clean air.
空気は空気導入管３より合流管４を介してスモークメー
タ１に入り、前に入っていた排出ガスを押し出してスモ
ークメータ内をパージする。Air enters the smoke meter 1 from the air introduction pipe 3 via the confluence pipe 4, pushes out the exhaust gas that had previously entered, and purges the inside of the smoke meter.
スモークメータ１の中が清浄になってから光音投光して
、清浄な雰囲気における不透過□度測定を行ない較正す
る。較正終了後、スイッチ９を押して遮断弁付送風機６
を停止させ、排出ガス遮断弁５を開いて排出ガスの不透
過度ヲ棋１］定できるようにする。After the inside of the smoke meter 1 is clean, light and sound is projected, and opacity measurement is performed in a clean atmosphere for calibration. After the calibration is completed, press the switch 9 to turn off the blower 6 with a shutoff valve.
is stopped, and the exhaust gas cutoff valve 5 is opened so that the impermeability of the exhaust gas can be determined.
第２実施例は低温環境下で使用するもので、第２図に示
すように、スモークメータ１の入口部で排出ガス導入管
２と空気導入管３を合流させて合流管４としてスモーク
メータに接続させる。排出ガス導入管２には、合流管４
の前側Ｖこ排出ガス遮断弁５を設ける。空気導入管３に
は、入口部に空気遮断弁１１全設ける。スモークメータ
１、排出ガス遮断弁５、空気遮断弁１１、およびこれら
を接続する配管類を入れる保温ケース１２で周囲を被う
。、保温ケース１２Ｖｃは清浄温風発生機１３の吐出側
配管１４と吸込側配管１５を接続して、ケース内を保温
すると同時に大気圧よりも高い圧力に保つようにする。The second embodiment is used in a low-temperature environment, and as shown in FIG. Connect. The exhaust gas introduction pipe 2 includes a merging pipe 4.
An exhaust gas cutoff valve 5 is provided on the front side of the V. The air introduction pipe 3 is entirely provided with an air cutoff valve 11 at its inlet. The smoke meter 1, the exhaust gas cutoff valve 5, the air cutoff valve 11, and the piping connecting these are enclosed in a heat insulating case 12. The heat insulation case 12Vc connects the discharge side piping 14 and the suction side piping 15 of the clean warm air generator 13 to keep the inside of the case warm and at the same time keep the pressure higher than atmospheric pressure.
排出ガス遮断弁５と空気遮断弁１１には制御装置７から
の配線を保温ケース１２の配線孔１６全通して接続する
。制御装置７には押しボタン式のスイッチ８．９が接続
される。Wiring from the control device 7 is connected to the exhaust gas cutoff valve 5 and the air cutoff valve 11 through the entire wiring hole 16 of the heat insulation case 12. A push button switch 8.9 is connected to the control device 7.
このように構成さｆ′Ｌｆ７：、第２実施例の装置では
、スモークメータ１の較正時に、スイッチ８を押して、
排出ガス導入管２に設けらｆｉた排出ガス遮断弁５を閉
じ、空気導入管３の入口部に設けられた空気遮断弁１１
を開らく。保温ケース１２の中は清浄温風発生機１３に
より配管１４を介して温風が送られるとともに、大気圧
よりも高い圧力に保持されているため、空気遮断弁１１
が開らくと同時に空気導入管３へ清浄温風が流入する。In the device of the second embodiment configured in this way, when the smoke meter 1 is calibrated, the switch 8 is pressed.
The exhaust gas cutoff valve 5 provided in the exhaust gas introduction pipe 2 is closed, and the air cutoff valve 11 provided at the inlet of the air introduction pipe 3 is closed.
Open. Inside the heat insulation case 12, warm air is sent by a clean warm air generator 13 through piping 14, and since the pressure is maintained higher than atmospheric pressure, the air cutoff valve 11
Clean warm air flows into the air introduction pipe 3 at the same time as it opens.
スモークメータ１の中が清浄温風でパージされてから光
を投光して清浄な雰囲気における不透過度測定を行ない
較正する。較正終了後、スイッチ９を押して空気遮断弁
１１を閉じ、排出ガス遮断弁５を開いて排出ガスの不透
過度を測定できるようにする。After the inside of the smoke meter 1 is purged with clean warm air, light is emitted to perform opacity measurement in a clean atmosphere for calibration. After the calibration is completed, the switch 9 is pressed to close the air cutoff valve 11 and open the exhaust gas cutoff valve 5 so that the exhaust gas opacity can be measured.
このようにして常温あるいは低温環境下におけるスモー
クメータの較正時には、較正の都度スモークメータをス
イッチ操作だけで簡単にパージすることができるように
なり、較正精度が良くｋる。これにより不透過度の測定
精度も向上する。In this way, when calibrating the smoke meter in a room temperature or low temperature environment, the smoke meter can be easily purged by simply operating a switch each time the calibration is performed, and the calibration accuracy is improved. This also improves the accuracy of measuring opacity.
また、低温環境下においてはパージ用空気に保謡用温風
を利用するため使用機器について低温仕様のものを用い
る必要がなくなり、費用を低減させる。Furthermore, in a low-temperature environment, warm air for singing songs is used as purge air, so there is no need to use low-temperature equipment for the equipment used, which reduces costs.
上記実施例では操作、制御装置についてスイッチを別体
のように例示したが、特に別体にする必要はなく、操作
性および製作上から一体化した方が便利であれば一体化
して設けてもよい。In the above embodiment, the switch is shown as a separate unit for the operation and control device, but it is not necessary to separate the switch, and if it is more convenient from the viewpoint of operability and manufacturing, it may be integrated. good.
また保温ケースと操作、制御装置を分離して例示したが
、保温ケース内に操作、制御装置を組み込み、スイッチ
のみ外部から操作できるように配置しても良い。さらに
、清浄温風発生機を保温ケースに入ｎ１補助的な空気吸
い込み配管を保温ケースの外へ出す、あるいは空気吸い
込み孔を保温ケースに設は清浄温風発生機の吸い込み口
を保温ケースの空気吸い込み孔に接続しても良い。Further, although the heat insulation case and the operation and control device are illustrated as being separated from each other, the operation and control device may be built into the heat insulation case and arranged so that only the switch can be operated from the outside. In addition, if you put the clean hot air generator in the heat insulating case and take the n1 auxiliary air suction piping out of the heat insulating case, or set the air suction hole in the heat insulating case, connect the inlet of the clean hot air generator to the air in the heat insulating case. It may also be connected to the suction hole.
（発明の効果）
以上のような構成、作用の本発明によるパージ装置付ス
モークメークでは、スモークメータへの導入気体を清浄
な空気と自動車等のエンジンから排出されるガスとが必
要に応じて切り換えができるようｖｃｔす、スモークメ
ータの較正時に清浄な空気でスモークメータをノく一ジ
することができる。さらに、その尋人された消辱空気で
満たされた清浄な雰囲気に対する測定によってスモーク
メータ全較正することができるようになり、スモークメ
ータの較正精度が向上する。較正精度が良くなるため排
出ガスの不透過度の測定精度も向上するようになる。(Effects of the Invention) In the smoke makeup device equipped with a purge device according to the present invention having the above-described configuration and operation, the gas introduced into the smoke meter can be switched between clean air and gas exhausted from an engine of an automobile, etc., as necessary. When calibrating the smoke meter, the smoke meter can be flushed with clean air. Furthermore, the entire smoke meter can be calibrated by measuring the clean atmosphere filled with the dehumidifying air, improving the calibration accuracy of the smoke meter. As the calibration accuracy improves, the measurement accuracy of exhaust gas opacity also improves.
第１図は本発明による常温用パージ装置付スモークメー
タを示す説明図、第２図は本発明による低温環境用パー
ジ装置付スモークメータを示す説明図である。FIG. 1 is an explanatory view showing a smoke meter with a purge device for use in normal temperatures according to the present invention, and FIG. 2 is an explanatory view showing a smoke meter with a purge device for use in low-temperature environments according to the present invention.
Claims (1)
空気導入管を接続し、前記排出ガス導入管には排出ガス
遮断弁を設け、前記空気導入管には送風機または空気遮
断弁の少なくとも一方を設け、前記排出ガス遮断弁と前
記送風機あるいは前記空気遮断弁に操作、制御装置を接
続したこと全特徴とするパージ装置付スモークメータ。(1) Connect an exhaust gas inlet pipe and an air inlet pipe to the inlet of the smoke meter, provide an exhaust gas cutoff valve in the exhaust gas inlet pipe, and install at least one of a blower or an air cutoff valve in the air inlet pipe. 1. A smoke meter with a purge device, characterized in that an operation and control device is connected to the exhaust gas cutoff valve and the blower or the air cutoff valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58067299A JPS59192940A (en) | 1983-04-16 | 1983-04-16 | Smoke meter with purging device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP58067299A JPS59192940A (en) | 1983-04-16 | 1983-04-16 | Smoke meter with purging device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS59192940A true JPS59192940A (en) | 1984-11-01 |
Family
ID=13340975
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP58067299A Pending JPS59192940A (en) | 1983-04-16 | 1983-04-16 | Smoke meter with purging device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59192940A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011106850A1 (en) * | 2010-03-05 | 2011-09-09 | Xtralis Technologies Ltd | Filter bypass |
| EP2452323A1 (en) * | 2009-07-07 | 2012-05-16 | Xtralis Technologies Ltd | Chamber condition |
| WO2015054749A1 (en) * | 2013-10-16 | 2015-04-23 | Xtralis Technologies Ltd | Aspirated particle detection with various flow modifications |
-
1983
- 1983-04-16 JP JP58067299A patent/JPS59192940A/en active Pending
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2452323A1 (en) * | 2009-07-07 | 2012-05-16 | Xtralis Technologies Ltd | Chamber condition |
| EP2452323A4 (en) * | 2009-07-07 | 2014-06-25 | Xtralis Technologies Ltd | Chamber condition |
| US9111427B2 (en) | 2009-07-07 | 2015-08-18 | Xtralis Technologies Ltd | Chamber condition |
| WO2011106850A1 (en) * | 2010-03-05 | 2011-09-09 | Xtralis Technologies Ltd | Filter bypass |
| KR20130014539A (en) * | 2010-03-05 | 2013-02-07 | 엑스트랄리스 테크놀로지 리미티드 | Filter bypass |
| AU2011223512B2 (en) * | 2010-03-05 | 2016-07-21 | Garrett Thermal Systems Limited | Filter bypass |
| US9702802B2 (en) | 2010-03-05 | 2017-07-11 | Garrett Thermal Systems Limited | Filter bypass |
| TWI600462B (en) * | 2010-03-05 | 2017-10-01 | 愛克斯崔里斯科技有限公司 | Filter bypass |
| KR20180057738A (en) * | 2010-03-05 | 2018-05-30 | 엑스트랄리스 테크놀로지 리미티드 | Filter bypass |
| WO2015054749A1 (en) * | 2013-10-16 | 2015-04-23 | Xtralis Technologies Ltd | Aspirated particle detection with various flow modifications |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP5242580B2 (en) | Suction type leak detector | |
| JP2635587B2 (en) | Device for calibrating the detector of the leak inspection device | |
| US6464941B1 (en) | Breath alcohol measuring apparatus having a sample intake channel and a temperature sensor mounted therein | |
| CN103154689A (en) | Leak detector | |
| JPH0543060B2 (en) | ||
| US7329390B2 (en) | Device and process for measuring breath alcohol | |
| JPWO2002094359A1 (en) | Measuring device for inspiratory temperature in breathing circuit | |
| IT1258266B (en) | TANK BREATHER SYSTEM AND PROCEDURE AND DEVICE TO CONTROL IT | |
| US6191421B1 (en) | Gas analyzer using infrared radiation to determine the concentration of a target gas in a gaseous mixture | |
| JPS59192940A (en) | Smoke meter with purging device | |
| GB2054843A (en) | Absorption cell gas monitor | |
| JPH10239237A (en) | Method and device for duct concentration measurement | |
| JP3295235B2 (en) | Method for judging gas leakage from inner tube using fluidic gas meter with flow sensor | |
| JPH10221253A (en) | Infrared gas analyzer and gas concentration measuring method | |
| JPH08247827A (en) | Convenient calibration device for critical nozzle and method thereof | |
| JP3411395B2 (en) | Ventilation measurement device | |
| JPH0119068Y2 (en) | ||
| RU2044306C1 (en) | Fume meter of exhaust gases of diesel engine | |
| JP2536559Y2 (en) | Humidity temperature pressure gauge | |
| RU2044305C1 (en) | Fume meter of exhaust of diesel engines | |
| JP2004036937A (en) | Gas safety device | |
| JPH04204133A (en) | Calibrating device for reference vacuum gage | |
| JPS60196652A (en) | Apparatus for measuring concentration of white smoke | |
| JPS62105033A (en) | Solid moisture meter | |
| JPS6356489B2 (en) |