JPH039367B2 - - Google Patents
Info
- Publication number
- JPH039367B2 JPH039367B2 JP58098286A JP9828683A JPH039367B2 JP H039367 B2 JPH039367 B2 JP H039367B2 JP 58098286 A JP58098286 A JP 58098286A JP 9828683 A JP9828683 A JP 9828683A JP H039367 B2 JPH039367 B2 JP H039367B2
- Authority
- JP
- Japan
- Prior art keywords
- waste gas
- flare
- supplied
- gas
- flare stack
- 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 - Lifetime
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/08—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks
- F23G7/085—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases using flares, e.g. in stacks in stacks
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Feeding And Controlling Fuel (AREA)
- Incineration Of Waste (AREA)
Description
【発明の詳細な説明】
産業上の利用分野
この発明は、プラントの安全弁などから放出さ
れる有毒性の可燃ガスなどを燃焼処理する方法に
関する。DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for burning and treating toxic combustible gas etc. released from safety valves in plants.
従来の技術
この種の方法として、例えば特公昭54−6732号
公報に開示されているように、廃ガス量がグラン
ドフレアの処理容量以下であるときに、廃ガスを
グランドフレアへ供給して廃ガス量に対応して複
数のバーナ燃焼段で処理し、廃ガス量がグランド
フレアの処理容量を超えたときに、その超過分の
廃ガスをフレアスタツクへ供給して処理するとと
もに、フレアスタツクへ廃ガスを供給すると同時
に、逆火防止用パージガスをフレアスタツクへ供
給するものが知られている。Prior Art As a method of this type, for example, as disclosed in Japanese Patent Publication No. 54-6732, when the amount of waste gas is less than the processing capacity of the ground flare, waste gas is supplied to the ground flare and the waste gas is disposed of. The waste gas is processed in multiple burner combustion stages according to the amount of gas, and when the amount of waste gas exceeds the processing capacity of the ground flare, the excess waste gas is supplied to the flare stack for processing, and the waste gas is also transferred to the flare stack. It is known to simultaneously supply purge gas for flashback prevention to the flare stack.
発明が解決しようとする課題
上記従来の方法では、フレアスタツクへ廃ガス
を供給すると同時に、逆火防止用パージガスをフ
レアスタツクへ供給するため、フレアスタツクの
バーナのところへ廃ガスよりパージガスが同時か
早く到着すれば問題がないが、廃ガスよりパージ
ガスが遅れて到着すると、バーナ内部で廃ガスが
燃焼してバーナが焼損する恐れがある。Problems to be Solved by the Invention In the above-mentioned conventional method, purge gas for preventing flashback is supplied to the flare stack at the same time as waste gas is supplied to the flare stack, so the purge gas arrives at the flare stack burner at the same time or earlier than the waste gas. There is no problem if the purge gas arrives later than the waste gas, but if the purge gas arrives later than the waste gas, the waste gas may burn inside the burner and the burner may burn out.
この発明の目的は、フレアスタツクのバーナの
焼損を確実に防止することのできる、廃ガスの燃
焼処理方法を提供することにある。 An object of the present invention is to provide a method for combustion treatment of waste gas that can reliably prevent burnout of the burner of a flare stack.
課題を解決するための手段
この発明による廃ガスの燃焼処理方法は、廃ガ
ス量がグランドフレアの処理容量以下であるとき
に、廃ガスをグランドフレアへ供給して廃ガス量
に対応して複数のバーナ燃焼段で処理し、廃ガス
量がグランドフレアの処理容量を超えたときに、
その超過分の廃ガスをフレアスタツクへ供給して
処理する、廃ガスの燃焼処理方法において、グラ
ンドフレアの最終のバーナ燃焼段に廃ガスが供給
されると同時に、逆火防止用パージガスをフレア
スタツクに供給することを特徴とするものであ
る。Means for Solving the Problems The method for combustion treatment of waste gas according to the present invention includes, when the amount of waste gas is less than or equal to the processing capacity of the ground flare, the waste gas is supplied to the ground flare, and a plurality of When the amount of waste gas exceeds the processing capacity of the ground flare,
In a waste gas combustion treatment method in which the excess waste gas is supplied to the flare stack for treatment, the waste gas is supplied to the final burner combustion stage of the grand flare, and at the same time, purge gas for flashback prevention is supplied to the flare stack. It is characterized by:
作 用
この発明による廃ガスの燃焼処理方法では、グ
ランドフレアの最終のバーナ燃焼段に廃ガスが供
給されると同時に、逆火防止用パージガスをフレ
アスタツクに供給するから、フレアスタツクに廃
ガスが供給される前に、フレアスタツクにパージ
ガスが供給される。Effect: In the waste gas combustion treatment method according to the present invention, the waste gas is supplied to the final burner combustion stage of the ground flare, and at the same time, purge gas for preventing flashback is supplied to the flare stack, so that the waste gas is supplied to the flare stack. Purge gas is supplied to the flare stack prior to the flare stack.
実施例
以下、この発明の実施例について図面を参照し
て説明する。Embodiments Hereinafter, embodiments of the present invention will be described with reference to the drawings.
図面は、廃ガスの燃焼処理装置のフローシート
である。 The drawing is a flow sheet of a waste gas combustion treatment device.
廃ガスの燃焼処理装置は、グランドフレア２を
有するフレアスタツク１を備えている。 The waste gas combustion treatment device includes a flare stack 1 having a ground flare 2.
フレアスタツク１は、地面３に垂直に立てられ
た円筒状フレアスタツク本体４と、本体４の頂部
に設けられた主バーナ５を備えている。主バーナ
５には、図示しない供給源からのびてきた逆火防
止用パージガス供給管６が接続され、これには開
閉弁７が設けられている。グランドフレア２は、
３段のバーナ（図示略）を備えている。さらにフ
レアスタツク１およびグランドフレア２は、廃ガ
ス導入量を制御するために、それぞれ水封ドラム
８，９を備えている。フレアスタツク用およびグ
ランドフレア用水封ドラム８，９はいずれも、内
部のほぼ半ばまで水１０が溜められた気密状中空
ドラム本体１１，１２、廃ガス入口管１３，１４
および出口管１５，１６を備えている。各入口管
１３，１４の一端には、安全弁１７からのびてき
た廃ガス導管１８が２つに分岐してそれぞれ接続
されている。また各入口管１３，１４の他端は水
１０にそれぞれ異なつた所定の深さＬ、ｌだけ挿
入されている。したがつて同端部にはそれぞれの
挿入深さＬ、ｌに相当する異なつた水圧が作用す
る。挿入深さＬ、ｌはＬ＞ｌである。フレアスタ
ツク用水封ドラム８の出口管１５はフレアスタツ
ク本体４に接続されている。一方グランドフレア
用水封ドラム９の出口管１６は、３つに分岐し
て、上記グランドフレア２の３段のバーナにそれ
ぞれ通じる第１〜第３連絡管１９，２０，２１に
接続されている。第１連絡管１９には第１圧力検
出器２２が設けられている。また第２連絡管２０
には第１圧力検出器２２に連動した第１開閉弁２
３および第２圧力検出器２４が設けられている。
そして第３連絡管２１にはリミツトスイツチ２５
を有し、かつ第２圧力検出器２４に連動した第２
開閉弁２６が設けられている。リミツトスイツチ
２５はパージガス供給管６の開閉弁７に連動して
いる。 The flare stack 1 includes a cylindrical flare stack body 4 vertically erected on the ground 3, and a main burner 5 provided at the top of the body 4. A backfire prevention purge gas supply pipe 6 extending from a supply source (not shown) is connected to the main burner 5, and is provided with an on-off valve 7. Grand Flare 2 is
It is equipped with three stages of burners (not shown). Further, the flare stack 1 and the ground flare 2 are each equipped with water seal drums 8 and 9 in order to control the amount of waste gas introduced. Both the flare stack and ground flare water seal drums 8 and 9 have airtight hollow drum bodies 11 and 12 in which water 10 is stored almost halfway inside, and waste gas inlet pipes 13 and 14.
and outlet pipes 15 and 16. A waste gas conduit 18 extending from the safety valve 17 is branched into two and connected to one end of each of the inlet pipes 13 and 14, respectively. The other ends of the inlet pipes 13 and 14 are inserted into the water 10 by different predetermined depths L and l, respectively. Therefore, different water pressures corresponding to the respective insertion depths L and l act on the same end. The insertion depth L, l is L>l. The outlet pipe 15 of the flare stack water seal drum 8 is connected to the flare stack main body 4. On the other hand, the outlet pipe 16 of the ground flare water seal drum 9 is branched into three parts and connected to first to third communication pipes 19, 20, and 21 which respectively communicate with the three stages of burners of the ground flare 2. A first pressure detector 22 is provided in the first communication pipe 19 . Also, the second communication pipe 20
a first on-off valve 2 linked to a first pressure detector 22;
3 and a second pressure detector 24 are provided.
And the third connecting pipe 21 has a limit switch 25.
and a second pressure detector 24 that has a
An on-off valve 26 is provided. The limit switch 25 is linked to the on-off valve 7 of the purge gas supply pipe 6.
導管１８を送られてきた廃ガスは、フレアスタ
ツク用およびグランドフレア用水封ドラム８，９
のうち、端部に作用する水圧の小さい入口管１４
を有する後者のドラム９を通つてグランドフレア
２に供給されて前段処理される。そして廃ガス量
がグランドフレア２の処理容量を超えたときに、
その超過分の廃ガスが前者のドラム８を通つてフ
レアスタツク１に供給されて処理される。 The waste gas sent through the conduit 18 is sent to the flare stack and ground flare water seal drums 8 and 9.
Of these, the inlet pipe 14 has a smaller water pressure acting on its end.
The ground flare 2 is supplied to the ground flare 2 through the latter drum 9, which has a drum 9, and is subjected to pre-processing. When the amount of waste gas exceeds the processing capacity of Grand Flare 2,
The excess waste gas is supplied to the flare stack 1 through the former drum 8 for treatment.
グランドフレア２がわに供給された廃ガスは、
まず第１連絡管１９を通つて１段目バーナに送ら
れ、このバーナで燃焼処理される。この処理ガス
量が増加して１段目バーナの処理容量を超える
と、これを第１圧力検出器２２が検出し、この検
出信号によつて第１開閉弁２３が開かれる。これ
により、第２連絡管２０が開かれて廃ガスは第１
および第２連絡管１９，２０を通つて１段目およ
び２段目バーナに送られ、両バーナで同時に燃焼
処理される。さらに廃ガス量が増加して両バーナ
の処理容量を超えると、これを第２圧力検出器２
４が検出し、この検出信号によつて第２開閉弁２
６が開かれる。第２開閉弁２６が開かれると、廃
ガスは第１〜第３連絡管１９〜２１のすべてを通
つて各段すべてのバーナに送られ、全段のバーナ
で燃焼処理される。また廃ガス量が減少した場合
には、上述の作動が逆に行なわれて第２開閉弁２
６から第１開閉弁２３の順に閉じられる。このよ
うにグランドフレア２では、廃ガス供給量が増
加、減少するにしたがつてバーナの燃焼段数が増
加、減少する。 The waste gas supplied to the ground flare 2 side is
First, it is sent to the first stage burner through the first communication pipe 19, and is burned in this burner. When the amount of processed gas increases and exceeds the processing capacity of the first stage burner, the first pressure detector 22 detects this, and the first on-off valve 23 is opened in response to this detection signal. As a result, the second communication pipe 20 is opened and the waste gas is transferred to the first
It is sent to the first and second stage burners through the second communication pipes 19 and 20, and is simultaneously burned in both burners. When the amount of waste gas increases further and exceeds the processing capacity of both burners, it is transferred to the second pressure detector 2.
4 is detected, and the second on-off valve 2 is detected by this detection signal.
6 will be held. When the second on-off valve 26 is opened, the waste gas is sent to all the burners in each stage through all of the first to third communication pipes 19 to 21, and is combusted by the burners in all stages. Moreover, when the amount of waste gas decreases, the above-mentioned operation is performed in reverse and the second on-off valve 2
6 to the first on-off valve 23 are closed in this order. In this way, in the ground flare 2, as the amount of waste gas supplied increases or decreases, the number of combustion stages of the burner increases or decreases.
バーナの燃焼段数増加、減少時に第２開閉弁２
６が開閉されると、この開閉作動をリミツトスイ
ツチ２５が検出する。この検出信号により、第２
開閉弁２６に連動してパージガス供給管６の開閉
弁７が開閉される。すなわち第２開閉弁２６が開
かれると、これと同時にパージガス供給管６の開
閉弁７が開かれて主バーナ５に逆火防止用パージ
ガスが供給される。また第２開閉弁２６が閉じら
れると、パージガス供給管６の開閉弁７が閉じら
れて同パージガスの供給が停止される。グランド
フレア２の全段バーナ処理容量を超えた分の廃ガ
スがフレアスタツク１に供給されるときは、第２
開閉弁２６はすでに開かれており、主バーナ５に
はあらかじめパージガスが供給されている。した
がつて安全弁１７が閉鎖されたときにフレアスタ
ツク１に残存している廃ガスはパージガスによつ
て追い出されるから、廃ガスがフレアスタツク１
内で爆発して逆火することがない。 The second on-off valve 2 when the number of burner combustion stages increases or decreases.
6 is opened or closed, the limit switch 25 detects this opening/closing operation. This detection signal causes the second
The on-off valve 7 of the purge gas supply pipe 6 is opened and closed in conjunction with the on-off valve 26 . That is, when the second on-off valve 26 is opened, the on-off valve 7 of the purge gas supply pipe 6 is simultaneously opened and the flashback prevention purge gas is supplied to the main burner 5. Further, when the second on-off valve 26 is closed, the on-off valve 7 of the purge gas supply pipe 6 is closed and the supply of the purge gas is stopped. When waste gas in excess of the burner processing capacity of all stages of ground flare 2 is supplied to flare stack 1,
The on-off valve 26 has already been opened, and the main burner 5 has been supplied with purge gas in advance. Therefore, when the safety valve 17 is closed, the waste gas remaining in the flare stack 1 is purged out by the purge gas, so that the waste gas remains in the flare stack 1.
It will not explode inside and cause backfire.
またフレアスタツク１から廃ガスを完全に追い
出すように、第２開閉弁２０が閉じられてから所
要時間、例えば10分経過後にパージガス供給管６
の開閉弁７を閉じるようにしてもよい。 Further, in order to completely expel the waste gas from the flare stack 1, the purge gas supply pipe 6
The on-off valve 7 may be closed.
発明の効果
この発明によれば、フレアスタツクに廃ガスが
供給される前に、フレアスタツクにパージガスが
供給されるから、フレアスタツクのバーナ内部で
の廃ガスの燃焼を確実に防止することができ、バ
ーナの焼損を皆無とすることができる。Effects of the Invention According to the present invention, since purge gas is supplied to the flare stack before waste gas is supplied to the flare stack, combustion of the waste gas inside the burner of the flare stack can be reliably prevented, and the combustion of the waste gas inside the burner can be reliably prevented. Burnout can be completely eliminated.
図面は、この発明の実施例を示す廃ガスの燃焼
処理装置のフローシートである。
１……フレアスタツク、２……グランドフレ
ア。
The drawing is a flow sheet of a waste gas combustion treatment apparatus showing an embodiment of the present invention. 1...Flare Stack, 2...Grand Flare.
Claims (1)
であるときに、廃ガスをグランドフレア２へ供給
して廃ガス量に対応して複数のバーナ燃焼段で処
理し、廃ガス量がグランドフレア２の処理容量を
超えたときに、その超過分の廃ガスをフレアスタ
ツク１へ供給して処理する、廃ガスの燃焼処理方
法において、 グランドフレア２の最終のバーナ燃焼段に廃ガ
スが供給されると同時に、逆火防止用パージガス
をフレアスタツク１に供給することを特徴とす
る、廃ガスの燃焼処理方法。[Scope of Claims] 1. When the amount of waste gas is less than the processing capacity of the ground flare 2, the waste gas is supplied to the ground flare 2, and is processed by a plurality of burner combustion stages corresponding to the amount of waste gas, and the waste gas is In a waste gas combustion processing method in which when the amount of gas exceeds the processing capacity of the ground flare 2, the excess waste gas is supplied to the flare stack 1 for processing. A method for combustion treatment of waste gas, characterized in that a purge gas for preventing flashback is supplied to the flare stack 1 at the same time as the gas is supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9828683A JPS59225213A (en) | 1983-06-01 | 1983-06-01 | Waste gas combustion treatment method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9828683A JPS59225213A (en) | 1983-06-01 | 1983-06-01 | Waste gas combustion treatment method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59225213A JPS59225213A (en) | 1984-12-18 |
| JPH039367B2 true JPH039367B2 (en) | 1991-02-08 |
Family
ID=14215682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9828683A Granted JPS59225213A (en) | 1983-06-01 | 1983-06-01 | Waste gas combustion treatment method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59225213A (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR101444838B1 (en) * | 2012-09-27 | 2014-09-26 | 삼성중공업 주식회사 | Flare line and monitoring system thereof |
| CN106321915B (en) * | 2015-06-30 | 2017-11-17 | 江苏瑞朗博机械设备有限公司 | A kind of valve automatically controls anti-backfire system |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS546732A (en) * | 1977-06-17 | 1979-01-19 | Fujitsu Ltd | Matching debug device for pattern recognizing device |
-
1983
- 1983-06-01 JP JP9828683A patent/JPS59225213A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS59225213A (en) | 1984-12-18 |
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