JP3501637B2 - Hot gas sampling equipment - Google Patents
Hot gas sampling equipmentInfo
- Publication number
- JP3501637B2 JP3501637B2 JP29969897A JP29969897A JP3501637B2 JP 3501637 B2 JP3501637 B2 JP 3501637B2 JP 29969897 A JP29969897 A JP 29969897A JP 29969897 A JP29969897 A JP 29969897A JP 3501637 B2 JP3501637 B2 JP 3501637B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- gas sampling
- water
- pipe
- sampling pipe
- 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
Links
Landscapes
- Sampling And Sample Adjustment (AREA)
Description
【発明の詳細な説明】Detailed Description of the Invention
【０００１】[0001]
【発明の属する技術分野】本発明は、ごみ焼却炉や灰溶
融炉、排ガスダクト内の高温ガスをサンプリングして分
析するための高温ガス採取装置に関する。TECHNICAL FIELD The present invention relates to a high temperature gas sampling apparatus for sampling and analyzing high temperature gas in a refuse incinerator, an ash melting furnace, and an exhaust gas duct.
【０００２】[0002]
【従来の技術】従来、ごみ焼却炉や灰溶融炉とその排ガ
スダクトでは、排ガスを採取して連続的に分析するガス
採取装置として、水冷式ガス採取装置（サンプリングプ
ルーブ）が使用されている。この水冷式ガス採取装置
は、図４に示すように、隔壁３１に水冷筒体３２が貫設
され、この水冷筒体３２にガス採取管３が水平方向に貫
通して取付けられたものである。2. Description of the Related Art Conventionally, a water-cooled gas sampling device (sampling probe) has been used as a gas sampling device for sampling and continuously analyzing exhaust gas in a refuse incinerator, an ash melting furnace and its exhaust gas duct. As shown in FIG. 4, in this water-cooled gas sampling device, a water cooling tubular body 32 is provided through a partition wall 31, and a gas sampling pipe 3 is attached to the water cooling tubular body 32 so as to extend horizontally. .
【０００３】[0003]
【発明が解決しようとする課題】しかし、上記水冷式ガ
ス採取装置では、採取ガス中に高濃度の塩類ヒュームが
含まれていると、ガス採取管３３の内面に塩類が析出
し、短時間で固化して閉塞し、採取が困難になるという
問題があった。However, in the above-described water-cooled gas sampling apparatus, if the collected gas contains a high concentration of salt fumes, the salt will be deposited on the inner surface of the gas sampling tube 33, and the salt will be deposited in a short time. There is a problem in that it is hardened and clogged, making collection difficult.
【０００４】本発明のうち請求項１記載の発明は、上記
問題点を解決して、採取する高温ガス中に塩類ヒューム
が含まれていても、ガス採取管の閉塞を防止できて長時
間にわたって良好に高温ガスを採取でき連続分析可能な
高温ガス採取装置を提供することを目的とする。The invention according to claim 1 of the present invention solves the above problems and prevents the gas sampling tube from being blocked even if salt fumes are contained in the high temperature gas to be sampled, so that the gas sampling tube can be prevented from being blocked for a long time. An object of the present invention is to provide a high temperature gas sampling device capable of sampling high temperature gas satisfactorily and capable of continuous analysis.
【０００５】[0005]
【課題を解決するための手段】上記目的を達成するため
に本発明の請求項１記載の発明は、炉壁に貫設された水
冷筒体内に、ガス採取管を貫通して水冷筒体の前端板に
ガス入口を開口させるとともに、該ガス採取管を前記ガ
ス入口からガス出口側に向って下方に傾斜させ、前記ガ
ス採取管のガス入口部近傍の上部管壁に、ガス採取管内
に冷却水の一部を洗浄水として供給してガス出口側に流
下させる洗浄水供給口を形成し、前記ガス採取管のガス
入口部の下部で前記前板に、洗浄水の炉内への流出を防
止する堰板を設けたものである。In order to achieve the above object, the invention according to claim 1 of the present invention is directed to a water-cooled tubular body penetrating a gas sampling pipe in a water-cooled tubular body penetrating the furnace wall . On the front end plate
Open the gas inlet and connect the gas sampling tube
Inclining downward from the gas inlet to the gas outlet side,
Inside the gas sampling pipe on the upper pipe wall near the gas inlet of the sampling pipe.
Part of the cooling water is supplied as cleaning water to the gas outlet side.
Forming the wash water supply port to be lowered, gas of the gas sampling pipe
At the lower part of the inlet, the front plate is protected from the wash water from flowing into the furnace.
It is provided with a barrier plate to stop .
【０００６】上記構成によれば、高温の採取ガスに同伴
される高濃度塩類ヒュームや煤塵が、採取管内の洗浄水
に溶解または同伴されてその水溶液が出口から排出され
るので、ガス採取管の内面に高濃度の塩類ヒュームや煤
塵が析出固化するのが未然に防止され、ガス採取管が閉
塞されることがなく、連続したガスの採取分析が可能と
なる。またガス入口に設けた堰板により、洗浄水の流出
を確実に防止できる。 According to the above construction, the high-concentration salt fumes and soot particles entrained in the high-temperature sampling gas are dissolved or entrained in the washing water in the sampling tube and the aqueous solution thereof is discharged from the outlet. Precipitation and solidification of high-concentration salt fumes and soot on the inner surface is prevented, the gas sampling pipe is not blocked, and continuous gas sampling and analysis becomes possible. In addition, the weir plate installed at the gas inlet causes the wash water to flow out.
Can be reliably prevented.
【０００７】また請求項２記載の発明は、上記構成にお
いて、ガス採取管の傾斜角を３°〜１０°の範囲とした
ものである。According to a second aspect of the present invention, in the above construction, the inclination angle of the gas sampling pipe is in the range of 3 ° to 10 ° .
【０００８】上記構成によれば、ガス採取管の傾斜角
を、３°〜１０°とすることにより、洗浄水の流れによ
り十分な洗浄効果が得られ、また寸法的に採取装置の外
形が大きくなることがない。 According to the above construction, the inclination angle of the gas sampling pipe
By 3 ° to 10 °,
It is possible to obtain a sufficient cleaning effect,
The shape never grows.
【０００９】[0009]
【発明の実施の形態】ここで、本発明に係る高温ガス採
取装置の実施の形態を図１〜図３に基づいて説明する。BEST MODE FOR CARRYING OUT THE INVENTION Here, an embodiment of a high temperature gas sampling apparatus according to the present invention will be described with reference to FIGS.
【００１０】この高温ガス採取装置は、たとえば高濃度
の塩類ヒュームを含む排ガスを 発生するプラズマ式や
アーク式の電気式灰溶融炉に設けられるもので、排ガス
を採取してＯ2やＣＯ、ＣＯ2を連続分析し、これに基づ
いて排ガス経路の下流側に追加する二次空気量や補助燃
料の添加量を制御するものである。This high temperature gas sampling apparatus is installed in a plasma type or arc type electric ash melting furnace for generating an exhaust gas containing a high concentration of salt fumes, and collects the exhaust gas to collect O 2 , CO, CO 2. 2 is continuously analyzed, and based on this, the amount of secondary air added to the downstream side of the exhaust gas path and the amount of auxiliary fuel added are controlled.
【００１１】溶融炉の炉壁１に形成されたガス採取孔２
には、フランジ３を介して水冷筒体４が貫設されてお
り、この水冷筒体４にガス採取管５が傾斜状態で貫通し
て配設されている。Gas sampling hole 2 formed in the furnace wall 1 of the melting furnace
A water cooling tubular body 4 is provided through the flange 3 via a flange 3, and a gas sampling pipe 5 is provided so as to penetrate the water cooling tubular body 4 in an inclined state.
【００１２】前記水冷筒体４は、円筒形で後端板４ａを
貫通して給水管４ｂが配設され、この給水管４ｂは前端
板４ｃの近傍で開口されている。また水冷筒体４の後部
管壁４ｄに排水口４ｅが設けられている。The water-cooling cylinder 4 has a cylindrical shape and a water supply pipe 4b is disposed so as to penetrate through the rear end plate 4a. The water supply pipe 4b is opened near the front end plate 4c. Further, a drain port 4e is provided on the rear pipe wall 4d of the water cooling tubular body 4.
【００１３】ガス採取管５は、前部のガス入口５ａから
後部のガス出口に向って下方に傾斜角α＝３°〜１０°
の範囲で傾斜して配設され、またガス入口５ａ近傍の上
部管壁に冷却筒体４内とガス採取管５内とを連通して冷
却水の一部を洗浄水として供給する直径１〜２ｍｍ程度
の洗浄水供給口５ｂが形成されている。このガス採取管
５の傾斜角α＝３°〜１０°としたのは、３°未満であ
ると洗浄水の流れが遅く、十分な洗浄効果が得られない
ためであり、１０°を越えると、寸法的に採取装置の外
形が大きくなるためである。The gas sampling pipe 5 is inclined downward from the front gas inlet 5a toward the rear gas outlet 5 at an inclination angle α = 3 ° to 10 °.
In the range of 1 to 10 mm, the cooling pipe 4 and the gas sampling pipe 5 are communicated with the upper pipe wall near the gas inlet 5a to supply a part of the cooling water as cleaning water. A wash water supply port 5b of about 2 mm is formed. The reason why the inclination angle α of the gas sampling pipe 5 is set to 3 ° to 10 ° is that if it is less than 3 °, the flow of cleaning water is slow and a sufficient cleaning effect cannot be obtained, and if it exceeds 10 °. This is because the size of the sampling device is large in size.
【００１４】またガス入口５ａの下部に堰板５ｃが取付
けられて、洗浄水の炉内への流出が防止されている。さ
らに、ガス採取管５の後部にはＴ字管６が接続され、Ｔ
字管６の延長方向の後端部には、内部を清掃可能なよう
に着脱自在なプラグ７で閉鎖されている。A weir plate 5c is attached to the lower portion of the gas inlet 5a to prevent the wash water from flowing into the furnace. Furthermore, a T-shaped tube 6 is connected to the rear of the gas sampling tube 5,
At the rear end of the character tube 6 in the extending direction, a removable plug 7 is closed so that the inside can be cleaned.
【００１５】また下方に分岐された分岐管８には、気水
分離器９が接続されている。この気水分離器９は、上面
中央に分岐管８が接続された分離ボックス９ａの下部に
排水管９ｂが接続されるとともに、分離ボックス９ａの
上部にガス排出管９ｃが設けられている。また、排水管
９ｂの下端部は受水槽９ｄの排水中に没入されている。A steam / water separator 9 is connected to the branch pipe 8 branched downward. In the steam separator 9, a drain pipe 9b is connected to a lower portion of a separation box 9a to which a branch pipe 8 is connected at the center of an upper surface, and a gas discharge pipe 9c is provided on an upper portion of the separation box 9a. The lower end of the drain pipe 9b is immersed in the drainage of the water receiving tank 9d.
【００１６】前記ガス排出管９ｃには、吸引ポンプ１１
により前処理装置の除湿器１２を介して導入されるガス
分析計１３が配置され、排ガスの成分が連続して分析さ
れる。A suction pump 11 is attached to the gas discharge pipe 9c.
The gas analyzer 13 introduced via the dehumidifier 12 of the pretreatment apparatus is arranged by this, and the components of the exhaust gas are continuously analyzed.
【００１７】上記構成において、冷却筒体４内に冷却水
が供給されるとともに、洗浄水供給口５ｂからガス採取
管５内に洗浄水（冷却水の一部）が供給され、ガス入口
５ａから下位のガス出口側にむかって送られる。そして
吸引ポンプ１１の作用により、排ガスがガス採取管５に
吸引採取される。この時、排ガスはガス採取管５内で洗
浄水と並行して流送されることから、排ガスに同伴され
た塩類ヒュームが効果的に洗浄水に溶解されて水溶液と
なるとともに、煤塵が洗浄水に捕捉され、気水分離器９
に運ばれる。そして気水分離器９では、この水溶液と排
ガスとが分離されてそれぞれ排出され、排ガスは除湿器
１２を介してガス分析計１３に導入され分析される。In the above structure, cooling water is supplied into the cooling cylinder 4, and cleaning water (a part of the cooling water) is supplied into the gas sampling pipe 5 from the cleaning water supply port 5b and the gas inlet 5a. It is sent to the lower gas outlet side. Then, by the action of the suction pump 11, the exhaust gas is sucked and collected by the gas sampling pipe 5. At this time, the exhaust gas is sent in parallel with the cleaning water in the gas sampling pipe 5, so that the salt fumes entrained in the exhaust gas are effectively dissolved in the cleaning water to become an aqueous solution, and soot and dust are washed water. Captured in the steam separator 9
Be carried to. Then, in the steam separator 9, the aqueous solution and the exhaust gas are separated and discharged respectively, and the exhaust gas is introduced into the gas analyzer 13 through the dehumidifier 12 and analyzed.
【００１８】上記実施の形態によれば、排ガス中の高濃
度ヒュームの塩類は、水に容易に溶解して水溶液を形成
しやすく、また煤塵も洗浄水に同伴されやすいため、ガ
ス採取管５内の高濃度ヒュームの塩類および煤塵が洗浄
水により洗浄、除去される。これによりガス採取管５の
閉塞が防止されて、長時間にわたる連続分析が可能とな
る。またガス分析計１３には、前処理に除湿器１２が使
用されるため、洗浄水添加による分析値への影響はな
い。According to the above-described embodiment, the high-concentration fumes salts in the exhaust gas are easily dissolved in water to form an aqueous solution, and soot is also easily entrained in the wash water. High-concentration fumes salts and dust are washed and removed with washing water. This prevents the gas sampling tube 5 from being blocked and enables continuous analysis for a long time. Further, since the dehumidifier 12 is used for the pretreatment in the gas analyzer 13, addition of cleaning water does not affect the analysis value.
【００１９】[0019]
【発明の効果】以上に述べたごとく請求項１記載の発明
によれば、高温の採取ガスに同伴される高濃度塩類ヒュ
ームや煤塵が、採取管内の洗浄水に溶解または同伴され
てその水溶液が出口から排出されるので、ガス採取管の
内面に高濃度の塩類ヒュームや煤塵が析出固化するのが
未然に防止され、ガス採取管が閉塞されることがなく、
連続したガスの採取分析が可能となる。またガス入口に
設けた堰板により、洗浄水の流出を確実に防止できる。 According to the invention of each rather請 Motomeko 1, wherein mentioned above, according to the present invention, a high concentration salt fumes or dust entrained in the hot collecting gases, dissolved or entrained in the wash water collection pipe that Since the aqueous solution is discharged from the outlet, it is possible to prevent high-concentration salt fume and soot dust from depositing and solidifying on the inner surface of the gas sampling tube, and the gas sampling tube is not blocked.
It enables continuous gas sampling and analysis. Also at the gas inlet
The provided weir plate can reliably prevent the wash water from flowing out.
【００２０】また請求項２記載の発明によれば、ガス採
取管の傾斜角を、３°〜１０°とすることにより、洗浄
水の流れにより十分な洗浄効果が得られ、また寸法的に
採取装置の外形が大きくなることがない。 According to the invention of claim 2, the gas sampling
Cleaning by adjusting the inclination angle of the intake pipe from 3 ° to 10 °
The flow of water provides a sufficient cleaning effect,
The external shape of the sampling device does not become large.
【図１】本発明に係る高温ガス採取装置の実施の形態を
示す縦断面図である。FIG. 1 is a vertical sectional view showing an embodiment of a high temperature gas sampling apparatus according to the present invention.
【図２】同高温ガス採取装置のガス採取管入口の縦断面
図である。FIG. 2 is a vertical sectional view of a gas sampling pipe inlet of the high temperature gas sampling device.
【図３】同高温ガス採取装置のガス採取管入口の正面図
である。FIG. 3 is a front view of a gas sampling pipe inlet of the high-temperature gas sampling device.
【図４】従来の高温ガス採取装置を示す縦断面図であ
る。FIG. 4 is a vertical cross-sectional view showing a conventional high temperature gas sampling device.
１ 炉壁 ２ ガス採取孔 ４ 水冷筒体 ５ ガス採取管 ５ａ ガス入口 ５ｂ 洗浄水供給口 ５ｃ 堰板 ９ 気水分離器 １１ 吸引ポンプ １２ 除湿器 １３ ガス分析計 1 furnace wall 2 gas sampling holes 4 Water-cooled cylinder 5 gas sampling tubes 5a gas inlet 5b Wash water supply port 5c weir board 9 steam separator 11 Suction pump 12 Dehumidifier 13 Gas analyzer
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭50−84293（ＪＰ，Ａ) 特開 平９−49788（ＪＰ，Ａ) 実開 昭52−155086（ＪＰ，Ｕ) 実開 平６−58348（ＪＰ，Ｕ) 特公 昭48−34192（ＪＰ，Ｂ１) 実公 昭39−31158（ＪＰ，Ｙ１) 実公 昭37−27396（ＪＰ，Ｙ１) (58)調査した分野(Int.Cl.7，ＤＢ名) G01N 1/00 - 1/44 ＪＩＣＳＴファイル（ＪＯＩＳ)─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-50-84293 (JP, A) JP-A-9-49788 (JP, A) Actually open 52-155086 (JP, U) Actual-open Flat 6- 58348 (JP, U) Japanese Patent Sho 48-34192 (JP, B1) Actual Public 39-31158 (JP, Y1) Actual Public 37-27396 (JP, Y1) (58) Fields investigated (Int.Cl. 7 , DB name) G01N 1/00-1/44 JISST file (JOIS)
Claims (2)
管を貫通して水冷筒体の前端板にガス入口を開口させる
とともに、該ガス採取管を前記ガス入口からガス出口側
に向って下方に傾斜させ、 前記ガス採取管のガス入口部近傍の上部管壁に、ガス採
取管内に冷却水の一部を洗浄水として供給してガス出口
側に流下させる洗浄水供給口を形成し、 前記ガス採取管のガス入口部の下部で前記前板に、洗浄
水の炉内への流出を防止する堰板を設けた ことを特徴と
する高温ガス採取装置。1. A gas inlet is opened in a front end plate of the water-cooling cylinder by penetrating a gas sampling pipe into the water-cooling cylinder which is provided through the furnace wall .
Together with the gas sampling pipe from the gas inlet to the gas outlet side
The gas sampling pipe on the upper pipe wall near the gas inlet part of the gas sampling pipe.
A part of the cooling water is supplied as cleaning water into the intake pipe to supply gas
A washing water supply port is formed to flow down to the side, and the front plate is washed under the gas inlet of the gas sampling pipe.
A high-temperature gas sampling device equipped with a weir plate that prevents water from flowing into the furnace .
としたことを特徴とする請求項１記載の高温ガス採取装
置。2. The high temperature gas sampling apparatus according to claim 1, wherein the inclination angle of the gas sampling tube is in the range of 3 ° to 10 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29969897A JP3501637B2 (en) | 1997-10-31 | 1997-10-31 | Hot gas sampling equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29969897A JP3501637B2 (en) | 1997-10-31 | 1997-10-31 | Hot gas sampling equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH11132918A JPH11132918A (en) | 1999-05-21 |
| JP3501637B2 true JP3501637B2 (en) | 2004-03-02 |
Family
ID=17875894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29969897A Expired - Fee Related JP3501637B2 (en) | 1997-10-31 | 1997-10-31 | Hot gas sampling equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3501637B2 (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4564790B2 (en) * | 2004-06-28 | 2010-10-20 | 株式会社堀場製作所 | Pretreatment apparatus and method for gas analysis |
| CN105987830A (en) * | 2015-02-10 | 2016-10-05 | 上海华林工业气体有限公司 | Method for improving on-line analysis accuracy of CO product of HYCO factory |
| CN106872218B (en) * | 2015-12-10 | 2023-10-20 | 核动力运行研究所 | Direction adjustable mobile steam sampling structure |
| JP7422033B2 (en) * | 2020-08-06 | 2024-01-25 | 株式会社ジェイテクトサーモシステム | water separator |
| CN114459834B (en) * | 2022-01-29 | 2023-12-19 | 北京航空航天大学 | Gas sampling device |
-
1997
- 1997-10-31 JP JP29969897A patent/JP3501637B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH11132918A (en) | 1999-05-21 |
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