JPS59183211A - Operating method for flare gas system - Google Patents
Operating method for flare gas systemInfo
- Publication number
- JPS59183211A JPS59183211A JP5847683A JP5847683A JPS59183211A JP S59183211 A JPS59183211 A JP S59183211A JP 5847683 A JP5847683 A JP 5847683A JP 5847683 A JP5847683 A JP 5847683A JP S59183211 A JPS59183211 A JP S59183211A
- Authority
- JP
- Japan
- Prior art keywords
- gas
- flare
- pressure
- surge drum
- waste gas
- 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
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
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Incineration Of Waste (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、フレアーガスシステムの運転方法に関し、更
に詳しくはグランドフレアー或いはフレアースタック等
のフレアー装置で焼却処理される可燃ガスを最小限に抑
制し、これによって回収される可燃ガスを加熱炉等の燃
料として安全、有効に利用するようにしたものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of operating a flare gas system, and more specifically to a method of operating a flare gas system, and more specifically, to minimize combustible gas that is incinerated in a flare device such as a ground flare or flare stack, and thereby recover the combustible gas. This allows combustible gas to be used safely and effectively as fuel for heating furnaces, etc.
曾てエネルギー価格が低廉であった時代には、フレアー
装置において大量の廃ガスが焼却処理され、特にフレア
ースタックでは夜間廃ガスが赤々と燃焼し、周辺地域の
景観を害ねる等の問題があった。その後、昭和４８年の
第一次石油ショックに伴いエネルギー価格が高騰し、フ
レアー装置で焼却処理される廃〃スの量は、フレアーシ
ステムに導入される廃ガスを発生する石油精製装置、石
油化学装置および化学プラント等における省資源、省エ
ネルギー技術と運転管理技術の向上により漸時減少して
きている。In the era when energy prices were low, large amounts of waste gas were incinerated in flare equipment, and there were problems such as flare stacks in particular, where the waste gas burned brightly at night, damaging the scenery of the surrounding area. Ta. After that, with the first oil shock in 1971, energy prices soared, and the amount of waste incinerated in flare equipment increased. It is gradually decreasing due to improvements in resource saving, energy saving technology and operation management technology in equipment and chemical plants.
しかし、従来技術によって、フレアーシステムに入る廃
ガスの発生量をその廃ガス発生源となる諸装置やプラン
トにおいて抑制する方法がとられているものの、省資源
、省エネルギーの観点から依然として看過し得ない量の
可燃性ガスが放出され、焼却処理されているのが現状で
ある。この理由は、まず廃ガスの量的変動が大きいこと
、廃ガス組成が変化して発熱量が必ずしも安定していな
いこと、フレアーシステムの運転操作ミスで逆火事故が
生ずる危険があること等のためである。However, although conventional technology has been used to suppress the amount of waste gas that enters the flare system in the various devices and plants that generate the waste gas, this still cannot be overlooked from the perspective of resource and energy conservation. Currently, a large amount of flammable gas is released and is being incinerated. The reasons for this are, first of all, the quantitative fluctuation of the exhaust gas is large, the calorific value is not necessarily stable due to changes in the composition of the exhaust gas, and there is a risk of backfire accidents due to operational errors in the flare system. It's for a reason.
本発明は上記従来技術の有する問題点に鑑みてなされた
もので、常時放出されている量的および質的変動の大き
な廃ブスの全部ないし大部分を安全に導き出して、これ
を加熱炉や焼却炉等の燃料ガスとして回収し、有効に利
用することができる方法を提供することを目的とする。The present invention has been made in view of the above-mentioned problems of the prior art, and it is possible to safely extract all or most of the waste busses that are constantly released and which have large fluctuations in quantity and quality, and to incinerate them in a heating furnace or incineration. The purpose is to provide a method that can be recovered and effectively used as fuel gas for furnaces, etc.
本発明によれば、フレアーシステムのサージドラム上流
の廃ガスラインに分岐ラインを設け、それから廃ガスを
ガス圧縮機の吸入側に導いてフレアー廃ガスの回収をす
るに際し、１）ガス圧縮機の吸入圧力が一定になるよう
にフレアー廃ガスの回収流量を自動制御すると共に、２
）ガス圧縮機の吸入圧力をサージドラムの水封が破れる
が破れない程度に一定に保つことによって、フレアー装
置へのガス量を最小限に抑制してフレアーガスシステム
の運転を行い、これによって回収される可燃ガスを加熱
炉等の燃料として安全、有効に利用することがで終る。According to the present invention, when recovering flare waste gas by providing a branch line in the waste gas line upstream of the surge drum of the flare system and guiding the waste gas from the line to the suction side of the gas compressor, 1) The recovery flow rate of flare waste gas is automatically controlled so that the suction pressure is constant, and
) By keeping the suction pressure of the gas compressor constant at a level that will break the surge drum's water seal but not break it, the flare gas system can be operated by minimizing the amount of gas flowing into the flare device, thereby reducing the amount of gas recovered. This ends with the safe and effective use of the combustible gas produced as fuel for heating furnaces, etc.
以下、本発明を図面に基づいて説明する。Hereinafter, the present invention will be explained based on the drawings.
図は本発明方法を実施するための装置の一例を示す。１
はフレアースタック、１′はグランドフレアー、３はプ
ラントの加熱炉であって、フレアー廃ガスは廃ガスライ
ン１１を通ってサージドラム２に入り、逆火防止のため
に一旦水封された後に、フレアースタック１またはグラ
ンドフレアー１′に送り込まれる。The figure shows an example of a device for carrying out the method of the invention. 1
1 is a flare stack, 1' is a ground flare, and 3 is a heating furnace of the plant. Flare waste gas enters the surge drum 2 through the waste gas line 11, and is once sealed with water to prevent backfire. It is fed into the flare stack 1 or ground flare 1'.
本発明では、廃ガスライン１１がサージドラム２に入る
手前で分岐ライン１２を取出してガス圧縮機４の吸入側
に接続し、吐出側はライン１３によって加熱炉３に接続
されており、また、分岐ライン１２には圧力計５が、ラ
イン１３には順次圧力計６、緊急遮断弁８、流量計９、
流量調節弁１０が介装されている。In the present invention, the branch line 12 is taken out before the waste gas line 11 enters the surge drum 2 and connected to the suction side of the gas compressor 4, and the discharge side is connected to the heating furnace 3 by a line 13. The branch line 12 has a pressure gauge 5, and the line 13 has a pressure gauge 6, an emergency shutoff valve 8, a flow meter 9,
A flow control valve 10 is interposed.
１４はライン１３と廃ガスライン１１との間に接続され
た廃ガス戻しラインで、このライン１４には圧力調節弁
７が設けられている。１５は加熱炉３に対する本来の燃
料ガスラインであって、圧力計１６、流量計１７及び燃
料ガス調節弁１８が介装されている。14 is a waste gas return line connected between the line 13 and the waste gas line 11, and this line 14 is provided with a pressure regulating valve 7. 15 is the original fuel gas line for the heating furnace 3, and a pressure gauge 16, a flow meter 17, and a fuel gas control valve 18 are interposed therein.
次に本発明の運転方法について説明する。Next, the operating method of the present invention will be explained.
廃ガスはサージドラム２からフレアースタック１または
グランドフレアー１′に供給される。しかし、本発明で
はこの廃ガスの全部或し・は大部分を回収し、フレアー
スタック１等への供給を最小限に抑える。Waste gas is supplied from the surge drum 2 to the flare stack 1 or ground flare 1'. However, in the present invention, all or most of this waste gas is recovered to minimize the supply to the flare stack 1 and the like.
即ち、上記フレアーガスシステムの運転に際しては、圧
力計５の圧力がサージドラム２の水封が破れるか破れな
い程度の圧力を上限とし、サージドラム２の封水を吸込
まない限りの圧力を下限とする一定の値を保持するよう
に、流量調節弁１０を自動制御することによって７レア
ー廃ガスの全部又は大部分を回収して、これを加熱炉３
で燃−させる。That is, when operating the flare gas system, the upper limit of the pressure of the pressure gauge 5 is such that the water seal of the surge drum 2 is broken or not, and the lower limit is the pressure that does not cause the water seal of the surge drum 2 to be sucked. By automatically controlling the flow rate control valve 10 so as to maintain a constant value, all or most of the 7 rare waste gas is recovered and transferred to the heating furnace 3.
Burn it with.
もし、廃ガスライン１１で供給される廃ガス量が少くな
ったときは、流量調節弁１０によりガス流量を滅じ、圧
力調節弁７を開いて廃ガスライン１１へこのガスを戻し
つつガス圧縮機４の運転は継続して廃ガスの回収循環を
行う。If the amount of waste gas supplied through the waste gas line 11 decreases, the gas flow rate is reduced by the flow rate control valve 10, and the pressure control valve 7 is opened to return this gas to the waste gas line 11 while compressing the gas. The operation of machine 4 continues to collect and circulate waste gas.
更にフレアー廃ガス量が減少して、ガス圧縮機４の吸入
圧力が管理最小圧力以下に下った場合には、自動的にガ
ス圧縮機を停止し、逆火防止のための緊急遮断弁８が閉
止するようになっている。Furthermore, when the amount of flared waste gas decreases and the suction pressure of the gas compressor 4 falls below the control minimum pressure, the gas compressor is automatically stopped and the emergency shutoff valve 8 is activated to prevent backfire. It is supposed to be closed.
また、加熱炉３には上記のように本来の燃料ガスライン
１５が設けられており、従ってライン１３の回収ガス量
に逆比例するように燃料ガス調節弁１８を作動させるこ
とにより、加熱炉３の操業を安定に保つことができる。Further, the heating furnace 3 is provided with the original fuel gas line 15 as described above, and therefore, by operating the fuel gas control valve 18 in inverse proportion to the amount of recovered gas in the line 13, the heating furnace 3 can maintain stable operation.
以上は廃ガスを一定の出力が要求される加熱炉に適用し
た例について説明したが、単なる焼却炉等に適用する場
合には燃料ガスライン１５を省略することがで外る。An example has been described above in which the present invention is applied to a heating furnace that requires a constant output of waste gas, but when the present invention is applied to a simple incinerator or the like, the fuel gas line 15 can be omitted.
本発明方法の別の実施態様としては、図示の様にグラン
ドフレアーおよびフレアースタックを並列的に使用し、
グランドフレアー上流のサージドラムの水封圧力を７レ
アースタツク上流のサージドラム水封圧力よりも低目に
設定する様な運転方法をとることもでき、また、グラン
ドフレアー又はフレアースタックのどちらか一方の７レ
アーガスシステムによって運転してもよい。更に、ガス
圧縮機４によるフレアー廃ガスの回収量を流量調節介１
０により自動制御するに当り、通常の計装システムに代
えていわゆるＤＤＣシステム（直接数値式制御システム
）を採用するのが好ましい。Another embodiment of the method of the invention is to use ground flares and flare stacks in parallel as shown;
It is also possible to adopt an operating method in which the water sealing pressure of the surge drum upstream of the ground flare is set lower than the water sealing pressure of the surge drum upstream of the 7 rare stack. It may also be operated with a rare gas system. Furthermore, the amount of flare waste gas recovered by the gas compressor 4 is adjusted by the flow rate adjustment mechanism 1.
0, it is preferable to adopt a so-called DDC system (direct numerical control system) in place of a normal instrumentation system.
本発明は以上説明したようになるから、常時放出されて
いたフレアーガスの全部又は大部分を、加熱炉等の燃料
用ガスとして安全に且つ連続的に回収して有効に利用で
外、これによってフレアーガスシステム装置の運転費を
削減することができる。As described above, the present invention enables all or most of the flare gas that is constantly released to be safely and continuously recovered and effectively used as fuel gas for heating furnaces, etc. The operating cost of the flare gas system equipment can be reduced.
図面は本発明の一実施例を示す系統図である。
１・・・フレアースタック、１′・・・グランドフレヤ
ー、２・・・サージドラム、３・・・加熱炉、４・・・
ガス圧縮機、５．６・・・圧力計、７・・・圧力調節弁
、８・・・緊急遮断弁、９・・・流量計、１０・・・流
量調節弁、１１・・・廃ガスライン、１２・・・分岐ラ
イン、１３・・・ライン。
特許出願人 アジア石油株式会社
代理人弁理士 鈴木征四部The drawing is a system diagram showing one embodiment of the present invention. 1... Flare stack, 1'... Ground flare, 2... Surge drum, 3... Heating furnace, 4...
Gas compressor, 5.6... Pressure gauge, 7... Pressure control valve, 8... Emergency shutoff valve, 9... Flow meter, 10... Flow rate control valve, 11... Waste gas Line, 12...branch line, 13...line. Patent applicant Seishibu Suzuki, patent attorney representing Asia Oil Co., Ltd.
Claims (1)
機の吸入側をサージドラムの入口側に接ａさせる一方、
吐出側を加熱炉に接続し、吐出側のガス流量を調節して
前記ガス圧縮機の吸入圧を前記サージドラムの水封が破
れるか破れない程度に一定に保ちつつフレアーへのガス
量を最小限に抑えることを特徴とするフレアーガスシス
テムの運転方法。 ゛A gas compressor is installed in the flare system, and the suction side of the gas compressor is brought into contact with the inlet side of the surge drum, while
The discharge side is connected to a heating furnace, and the gas flow rate on the discharge side is adjusted to keep the suction pressure of the gas compressor constant to a level that does not break the water seal of the surge drum, while minimizing the amount of gas to the flare. A method of operating a flare gas system that is characterized by suppressing gas emissions to a minimum.゛
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5847683A JPS59183211A (en) | 1983-04-01 | 1983-04-01 | Operating method for flare gas system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5847683A JPS59183211A (en) | 1983-04-01 | 1983-04-01 | Operating method for flare gas system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS59183211A true JPS59183211A (en) | 1984-10-18 |
| JPH0451727B2 JPH0451727B2 (en) | 1992-08-19 |
Family
ID=13085482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5847683A Granted JPS59183211A (en) | 1983-04-01 | 1983-04-01 | Operating method for flare gas system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS59183211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162645A (en) * | 2010-12-29 | 2011-08-24 | 中国石油化工股份有限公司 | Method capable of extinguishing torch and recycling heat of torch gas |
| KR101444838B1 (en) * | 2012-09-27 | 2014-09-26 | 삼성중공업 주식회사 | Flare line and monitoring system thereof |
| CN104964291A (en) * | 2015-07-02 | 2015-10-07 | 北京航天动力研究所 | Direct recovery method and device applicable to industrial high-flow large-regulation-ratio flare gas |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553400A (en) * | 1978-06-14 | 1980-01-11 | Bfg Glassgroup | Flame shielding glass panel and its manufacture |
-
1983
- 1983-04-01 JP JP5847683A patent/JPS59183211A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS553400A (en) * | 1978-06-14 | 1980-01-11 | Bfg Glassgroup | Flame shielding glass panel and its manufacture |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102162645A (en) * | 2010-12-29 | 2011-08-24 | 中国石油化工股份有限公司 | Method capable of extinguishing torch and recycling heat of torch gas |
| KR101444838B1 (en) * | 2012-09-27 | 2014-09-26 | 삼성중공업 주식회사 | Flare line and monitoring system thereof |
| CN104964291A (en) * | 2015-07-02 | 2015-10-07 | 北京航天动力研究所 | Direct recovery method and device applicable to industrial high-flow large-regulation-ratio flare gas |
| CN104964291B (en) * | 2015-07-02 | 2017-09-29 | 北京航天石化技术装备工程有限公司 | Suitable for the big regulation recovery method more direct than torch gas of industrial big flow and device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0451727B2 (en) | 1992-08-19 |
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