Deprecated: The each() function is deprecated. This message will be suppressed on further calls in /home/zhenxiangba/zhenxiangba.com/public_html/phproxy-improved-master/index.php on line 456
JP4827249B2 - Gas detector filter - Google Patents
[go: Go Back, main page]

JP4827249B2 - Gas detector filter - Google Patents

Gas detector filter Download PDF

Info

Publication number
JP4827249B2
JP4827249B2 JP2006250427A JP2006250427A JP4827249B2 JP 4827249 B2 JP4827249 B2 JP 4827249B2 JP 2006250427 A JP2006250427 A JP 2006250427A JP 2006250427 A JP2006250427 A JP 2006250427A JP 4827249 B2 JP4827249 B2 JP 4827249B2
Authority
JP
Japan
Prior art keywords
filter
gas detector
screw member
gas
hole
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 - Fee Related
Application number
JP2006250427A
Other languages
Japanese (ja)
Other versions
JP2008070286A (en
Inventor
克一 芝崎
良治 青
高史 小川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Riken Keiki KK
Original Assignee
Riken Keiki KK
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Riken Keiki KK filed Critical Riken Keiki KK
Priority to JP2006250427A priority Critical patent/JP4827249B2/en
Publication of JP2008070286A publication Critical patent/JP2008070286A/en
Application granted granted Critical
Publication of JP4827249B2 publication Critical patent/JP4827249B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Description

本発明は、ガス検出器に妨害ガスが流入するのを阻止するためのフィルタに関する。   The present invention relates to a filter for preventing interference gas from flowing into a gas detector.

ガス検出器は、要検出ガスだけでなく他のガスに対しても感度を有するため、妨害成分となるガスが存在する環境では吸着剤、もしくは中和剤を封入したフィルタを装着して使用されている。   Gas detectors are sensitive not only to gases that require detection, but also to other gases, so they are used with an adsorbent or neutralizing agent-filled filter in an environment where there are interfering components. ing.

一方、ガス検出器は、定期的に標準ガスにより校正する必要があるが、標準ガスを確実に内部のセンサに到達させるためには、装着されているフィルタを取り外すか、あるいはフィルタを装着したままその外周をフードで覆って標準ガスを供給する必要がある。   On the other hand, the gas detector must be periodically calibrated with the standard gas. To ensure that the standard gas reaches the internal sensor, either remove the attached filter or leave the filter attached. It is necessary to supply the standard gas by covering the outer periphery with a hood.

このため、フィルタを装着したガス検出器の校正にはフィルタの取り外しやフードの装着等の作業が必要となって、校正作業に手間を要するという問題がある。
本発明はこのような問題に鑑みてなされたものであって、その目的とするところは、フィルタの取り外しやフードの装着などの作業を必要とすることなく、ガス検出器に収容されているセンサに校正ガスを確実に流入させることができるガス検出器用フィルタを提供することである。
For this reason, the calibration of the gas detector equipped with the filter requires work such as removal of the filter and attachment of the hood, and there is a problem that labor is required for the calibration work.
The present invention has been made in view of such a problem, and an object of the present invention is to provide a sensor housed in a gas detector without requiring operations such as removing a filter or attaching a hood. It is an object of the present invention to provide a filter for a gas detector that can surely flow calibration gas into the gas detector.

このような課題を達成するために請求項1の発明は、ガス検出器の外周に装着可能で、かつネジ部材により固定されるフィルタにおいて、ネジ部材に貫通孔が形成されていて前記ネジ部材の露出側の先端にメクラ栓が着脱可能に設けられている。   In order to achieve such a subject, the invention of claim 1 is a filter that can be mounted on the outer periphery of a gas detector and is fixed by a screw member, and a through hole is formed in the screw member. A mecha plug is detachably provided at the tip of the exposed side.

また請求項2の発明は、ガス検出器の外周に装着可能で、かつネジ部材により固定されるフィルタにおいて、ネジ部材に貫通孔が形成されていて前記ネジ部材に連通する逆止弁が設けられている。   According to a second aspect of the present invention, in the filter that can be mounted on the outer periphery of the gas detector and is fixed by a screw member, a check valve that is formed with a through hole in the screw member and communicates with the screw member is provided. ing.

請求項1の発明によれば、フィルタをガス検出器に固定しているネジ部材のメクラ栓を外してネジの貫通孔から標準ガスを注入するという簡単な作業だけで、ネジ部材の貫通孔を経由して標準ガスをガス検出器の内部に流入させて内部のセンサに標準ガスを確実、かつ迅速に供給することができる。   According to the first aspect of the present invention, the screw member through-hole is formed only by a simple operation of removing the screw plug of the screw member fixing the filter to the gas detector and injecting the standard gas from the screw through-hole. By passing the standard gas through the gas detector, the standard gas can be reliably and quickly supplied to the internal sensor.

請求項2の発明によれば、標準ガスを注入すると、その圧力により逆止弁が自動的に開弁してネジ部材の貫通孔を経由して標準ガスをガス検出器の内部に流入させて内部のセンサに標準ガスを確実、かつ迅速に供給することができ、また標準ガスの流入が停止した時点では逆止弁が自動的に閉弁する。   According to the invention of claim 2, when the standard gas is injected, the check valve is automatically opened by the pressure, and the standard gas is caused to flow into the gas detector through the through hole of the screw member. The standard gas can be reliably and quickly supplied to the internal sensor, and when the inflow of the standard gas is stopped, the check valve is automatically closed.

図1(イ)、(ロ)、及び図2(イ)、(ロ)は、本発明の一実施例を示すものであって、ガス検出器の外周を覆うように装着可能な胴部10と底部20とを有し、胴部10は通気孔11を有する外壁12と内壁13とを同軸状に配置して構成され、内外壁により構成された空間に妨害ガスを吸収したり、またはセンサが不可能な成分に中和する中和剤等の剤Fを収容できるようになっている。   FIGS. 1 (a), (b) and FIGS. 2 (a), 2 (b) show an embodiment of the present invention, and a body 10 that can be mounted so as to cover the outer periphery of a gas detector. And the bottom part 20, and the trunk | drum 10 is comprised by arrange | positioning the outer wall 12 and the inner wall 13 which have the vent hole 11 coaxially, and it absorbs interference gas in the space comprised by the inner and outer wall, or a sensor. It is possible to accommodate an agent F such as a neutralizing agent that neutralizes components that cannot be treated.

一方、底部20はその中心軸に貫通孔21を有する軸22の外周にねじ山23を形成し、外部側に把持部24を設けたネジ部材25が回動可能に取り付けられている。
なお、このネジ部材23は、フィルタを完全に固定できる位置まで締め上げた状態で内部のセンサに到達できるサイズに調整するのが好ましい。
なお、図中符号14は、Oリングなどのパッキンを示す。
On the other hand, the bottom portion 20 has a screw thread 23 formed on the outer periphery of a shaft 22 having a through-hole 21 at its center axis, and a screw member 25 provided with a gripping portion 24 on the outside is rotatably attached.
In addition, it is preferable to adjust this screw member 23 to the size which can reach an internal sensor in the state tightened to the position which can fix a filter completely.
In the figure, reference numeral 14 denotes a packing such as an O-ring.

一方、上述のフィルタが装着されるガス検出器30は、図3に示したように上面部31にはフィルタのネジ部材25が係合するねじ山32を内周面に有する貫通孔33が形成されている。   On the other hand, as shown in FIG. 3, in the gas detector 30 to which the above filter is mounted, a through hole 33 having a thread 32 on the inner peripheral surface that engages the screw member 25 of the filter is formed in the upper surface portion 31. Has been.

この実施例において、ガス検出器が設置されている環境中に妨害成分ガスが存在する場合には、妨害ガスを吸着したり、センサ34が不感応な成分に中和する剤Fを収容したフィルタを装着する。
すなわち、フィルタの胴部10をガス検出器30に装着するとともに、ネジ部材25をガス検出器の貫通孔33にねじ込んで固定し、さらにネジ部材23の後端にキャップ、もしくはプラグ等のメクラ栓26を装着する。
In this embodiment, when an interference gas component is present in the environment where the gas detector is installed, a filter containing an agent F that adsorbs the interference gas or neutralizes the sensor 34 to an insensitive component. Wear.
In other words, the filter body 10 is mounted on the gas detector 30 and the screw member 25 is screwed into the through hole 33 of the gas detector and fixed, and a cap or a plug such as a plug is attached to the rear end of the screw member 23. 26 is mounted.

これにより、環境の空気はフィルタを通過する際に妨害ガスが吸着剤や中和剤等の剤Fにより選択的に除去、もしくは不感応な成分に中和される一方、要検出ガスはセンサ34に到達してその濃度が検出される。   Thereby, when the ambient air passes through the filter, the interfering gas is selectively removed by the agent F such as an adsorbent or a neutralizing agent, or is neutralized by an insensitive component, while the detection required gas is detected by the sensor 34. And the concentration is detected.

一方、ガス検出器に収容されているセンサ34の校正が必要となった場合には、ネジ部材23のメクラ栓26を外してネジ部材25の先端から標準ガスを注入すると、ネジ部材25の貫通孔21を経由して標準ガスがセンサ34に到達するから、校正が可能となる。
そして校正が終了した段階でネジ部材25にメクラ栓26を装着して次の測定に備える。
On the other hand, when calibration of the sensor 34 accommodated in the gas detector is required, the screw plug 25 is removed and the standard gas is injected from the tip of the screw member 25 to penetrate the screw member 25. Since the standard gas reaches the sensor 34 via the hole 21, calibration is possible.
When the calibration is completed, the screw plug 25 is attached to the screw member 25 to prepare for the next measurement.

なお、上述の実施例においてはネジ部材25の開口をメクラ栓により封止するようにしているが、図5に示したようにネジ部材25の貫通孔21に連通するように常時は閉弁状態を維持し、かつ標準ガスの圧力により開弁する逆止弁27を組み込んでも良い。
これによれば、標準ガスの注入により逆止弁27が自動的に開弁するから、メクラ栓の着脱操作が不要となる。
In the above-described embodiment, the opening of the screw member 25 is sealed with a plug plug, but is normally closed so as to communicate with the through hole 21 of the screw member 25 as shown in FIG. And a check valve 27 that is opened by the pressure of the standard gas may be incorporated.
According to this, since the check valve 27 is automatically opened by injecting the standard gas, the attaching / detaching operation of the plug is unnecessary.

図(イ)、(ロ)は、それぞれ本発明のフィルタの一実施例を、表裏から見た状態で示す斜視図である。FIGS. 1A and 1B are perspective views showing one embodiment of the filter of the present invention as seen from the front and back sides, respectively. 図(イ)、(ロ)は、それぞれ同上フィルタの上面図と、線A−Aでの断面構造を示す図である。FIGS. 1A and 1B are a top view of the filter and a cross-sectional structure taken along line A-A, respectively. 本発明のフィルタが装着されるガス検出器の一例を示す図である。It is a figure which shows an example of the gas detector with which the filter of this invention is mounted | worn. 本発明のフィルタをガス検出器に装着した状態を示す図である。It is a figure which shows the state which mounted | wore the gas detector with the filter of this invention. ネジ部材の他の実施例を示す断面図である。It is sectional drawing which shows the other Example of a screw member.

符号の説明Explanation of symbols

10 胴部 11 通気孔 12 外壁 13 内壁 20 底部 21 貫通孔 22 軸 23 ねじ山 24 把持部 25 ネジ部材 26 メクラ栓 30 ガス検出器 31 上面部 32 ねじ山 33 貫通孔 34 センサ F 剤   DESCRIPTION OF SYMBOLS 10 Body part 11 Ventilation hole 12 Outer wall 13 Inner wall 20 Bottom part 21 Through-hole 22 Shaft 23 Screw thread 24 Grasping part 25 Screw member 26 Mekura plug 30 Gas detector 31 Upper surface part 32 Screw thread 33 Through-hole 34 Sensor F agent

Claims (2)

ガス検出器の外周に装着可能で、かつネジ部材により固定されるフィルタにおいて、
ネジ部材に貫通孔が形成されていて前記ネジ部材の露出側の先端にメクラ栓が着脱可能に設けられているガス検出器用フィルタ。
In the filter that can be mounted on the outer periphery of the gas detector and is fixed by a screw member,
A gas detector filter, wherein a through hole is formed in a screw member, and a mesa plug is detachably provided at an exposed end of the screw member.
ガス検出器の外周に装着可能で、かつネジ部材により固定されるフィルタにおいて、
ネジ部材に貫通孔が形成されていて前記ネジ部材に連通する逆止弁が設けられているガス検出器用フィルタ。
In the filter that can be mounted on the outer periphery of the gas detector and is fixed by a screw member,
A gas detector filter in which a through hole is formed in a screw member and a check valve is provided in communication with the screw member.
JP2006250427A 2006-09-15 2006-09-15 Gas detector filter Expired - Fee Related JP4827249B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2006250427A JP4827249B2 (en) 2006-09-15 2006-09-15 Gas detector filter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2006250427A JP4827249B2 (en) 2006-09-15 2006-09-15 Gas detector filter

Publications (2)

Publication Number Publication Date
JP2008070286A JP2008070286A (en) 2008-03-27
JP4827249B2 true JP4827249B2 (en) 2011-11-30

Family

ID=39291986

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2006250427A Expired - Fee Related JP4827249B2 (en) 2006-09-15 2006-09-15 Gas detector filter

Country Status (1)

Country Link
JP (1) JP4827249B2 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022527180A (en) * 2019-03-29 2022-05-31 ローズマウント インコーポレイテッド Self-contained calibration device for gas sensors

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62163747A (en) * 1986-01-13 1987-07-20 Matsushita Electric Ind Co Ltd Catalyst manufacturing method
JP2003123164A (en) * 2001-10-17 2003-04-25 Fuji Electric Co Ltd Gas leak alarm and its inspection method
JP3776037B2 (en) * 2001-12-20 2006-05-17 理研計器株式会社 Handy gas detector
JP3875164B2 (en) * 2002-08-29 2007-01-31 本田技研工業株式会社 Gas sensor
JP4161895B2 (en) * 2003-12-10 2008-10-08 富士電機機器制御株式会社 Gas sensor and gas leak alarm
JP4148925B2 (en) * 2004-06-28 2008-09-10 大阪瓦斯株式会社 Gas detector and gas alarm

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2022527180A (en) * 2019-03-29 2022-05-31 ローズマウント インコーポレイテッド Self-contained calibration device for gas sensors
JP7229388B2 (en) 2019-03-29 2023-02-27 ローズマウント インコーポレイテッド Self-contained calibration device for gas sensors

Also Published As

Publication number Publication date
JP2008070286A (en) 2008-03-27

Similar Documents

Publication Publication Date Title
CN102200752B (en) Portable timepiece
FR2904692B1 (en) GAS DETECTOR
BR112013002839B1 (en) SENSOR DEVICE FOR END OF SERVICE LIFE INDICATION
US10634571B2 (en) Pressure-equalization element for a field device used in automation technology
ES2314391T3 (en) BOX THAT IMPLIES AN AIR CIRCULATION DUCT THAT PREVENTS ALL LIQUID ACCUMULATION.
JP4827249B2 (en) Gas detector filter
JP2017221650A (en) Light shield for sensor and disposable kit provided therewith
WO2008097281A3 (en) Oxygen absorbing fire suppression system
CN112673254B (en) Gas detector calibration caps with extension strips
KR20050083669A (en) Gas supply adapter
ATE422434T1 (en) INTERIOR AIR FILTER
CN103398878B (en) A kind of passive type air sampler
WO2007012973A3 (en) Pacifier protective assembly
JP2002022655A (en) Gas detector of gas measuring device for outdoor installation
JP4161895B2 (en) Gas sensor and gas leak alarm
JP3221032U (en) Gas sensor used for portable devices
CN207515170U (en) Sensor mounting structure reaches air purification equipment including it
JP6259677B2 (en) Inspection jig
KR101505922B1 (en) Protective cover for valve stem
JP3905455B2 (en) Gas mask with gas sensor
PL1955964T3 (en) Perforable closure
JP5464592B2 (en) Airtight test method for chemical protective clothing
JP3935817B2 (en) Gas mask with gas sensor
US20240042365A1 (en) Oil separator
JP2008095559A (en) Throttle device for internal combustion engine

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20090323

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20110620

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20110623

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20110912

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20110912

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20140922

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees