1276737 九、發明說明: 【發明所屬之技術領域】 本發明係關於一種氣體熱量變動抑制裝置、燃料氣體 供給設備、燃氣輪機設備及鍋爐設備。詳言之,係關於一 種當做為燃燒設備燃料的氣體為低熱量氣體般之發熱量會 變動之情形,能抑制此發熱量變動的氣體熱量變動抑制裝 置、具備此氣體熱量變動抑制裝置的燃料氣體供給設備、 以及做為具備燃料氣體供給設備的燃燒設備(即燃氣輪機設 備及鍋爐設備)。 【先前技術】 在製鐵領域中’例如以高爐法來生產銳鐵的情況,從 而爐^中’爐頂氣體(Blast Furnace Gas,以下記為BFG)係 以伴生氣體的形式產生。由於BFG之總發熱量達到所使用 之焦炭之發熱量的約一半,所以為了降低製銑原價,bfcj 於製鐵所内係被多方面利用。BFG相對於投入焦炭每丨噸 係產生約3000Nm3左右,其組成為c〇2 1〇〜18%、c〇 22〜30%、N2 52〜60%、H2 0.5〜4%、CH4 0.5〜3%。 BFG 塵裔去除 除了前述成分以外尚含有煙塵2〜l〇g/Nm3,以除 至0.01g/Nm3程度後,乃做為發熱量8〇〇kcal/Nm3 壬又之燃料氣體被利用於熱風爐、焦炭爐、加熱爐、备 等。近年來,於燃氣輪機因技術之進步可進行更低熱】 體之燃燒,將BFG應用於燃氣輪機燃料以進行發電2 j 不斷增加。此處所說之低熱量氣體,係定義為發熱量肩 1276737 12MJ/Nm3以下之氣體。做為低熱量氣體,如後述般,不限 於高爐氣體(BFG)’帛包含有焦炭爐氣體(c〇G)、旋轉爐氣 體(LDG)等許多其他種類之氣體。 另方面’近年來’不斷開發出高爐法以外之新的製 鐵製程(例如FINEX < C0REX等之直接還原鐵法),而期 待開發出對於此等新的製程所產生之伴生氣體之有效利用 亦能適用之燃燒方式。不論是何種製鐵製程,所產生之伴 生軋體之特性(氣體組成或熱量)會隨著設備、操作内容而 不同。即使是同一設備也會由於各原料之特性或反應過程 而時時刻刻在變化,並不固定。 右4 :半生氣體當作燃氣輪機之燃料使用時之最重要 :特性-熱量來看時,若超過各燃氣輪機固有之熱量容許 變=範圍之上限(例如平均熱量值之約+1〇%)的情況,亦即 熱量急速變大之情況下,有時燃氣輪機之燃燒器内之姆燒 急速地變為異常高溫。由於此原因,有可能發生燃 ^分、輪機之靜葉片與動葉片受損而壽命變短之弊 病此時,燃氣輪機設備之經濟上連續運轉變得困難。 :了抑制伴生氣體之變動熱量,已知有利用氮购 _之技術(參見例如曰本專利文獻】與專利文獻… 伴:::伴:氣體之熱量值變動的情況下,僅以N2來稀釋 :體,有時並無法將此變動充分抑制於燃氣輪機固有 &谷熱量變動幅唐或交年献 艾靭T田度:¾合疔熱里變動速度 豆 :合::生氣體之熱量變動急遽之情形,熱量檢測器:: …生遲延,造成不能適時稀釋,又,若不得不大量消 1276737 耗昂貴之惰性氣體時,要確保此惰性氣體有困難等。 因此’對伴生氣體之特性變動不太顯著之BFG僅使用 N2稀釋,或許能有效果地應付。但是,在直接還原鐵法等, 因小容量之反應爐反覆起動、停止,氣體之產生量及敎量 值之變動變得相當顯著,故僅使用N2稀釋在對應上是困難 的。 曰本專利文獻1 :特開2002_155762號公報 曰本專利文獻2 .特開平9-3 17499號公報 【發明内容】 發明所欲解決之謖擷 本發明係為了要解決上述問題而為,其目的在於提供 一種氣體熱量變動抑制纟置’ I!由抑龍熱量a體等(當; 燃料供給於燃燒設備)之燃料用氣體之熱量變動,使惰性氣 體對燃料氣體之稀釋容易且有效果,甚至能使惰性氣體之 稀釋變得不需要;另提供一種燃料氣體供給設備、具備此 氣體熱量變動抑制裝置、以及具備此燃料氣體供給設備之 燃氣輪機設備及鋼爐設備。 為了上述目的,本發明之氣體熱量變動抑制裝置,呈 有: ,、 槽,配置於用以將燃料氣體供給於燃燒設備之燃料氣 體供給通路上,將燃料氣體暫時儲存; 氣體入口,形成於該槽,用以從該燃料氣體供給通路 使燃料氣體流入槽内;以及 1276737 氣體出口,與該氣體入口形成於該槽之不同部位,用 以從槽使燃料氣體流出至燃料氣體供給通路。 =燃料氣體供給通路時時刻刻供給之燃_氣體, 時健存於槽内’在槽中作時間差現合。藉此,即使 此燃料氣體其熱量值係在變動之情形,藉由作時間差混 合,使其熱量變動之幅度減少,且,熱量變動速度緩和。 其結果’燃料氣體之熱量變動以稀釋氣體調整為燃燒設備 之氣體特性之容許變動範圍内變得容易且有效果。又,依 燃料氣體之平均熱量值之不同,有時亦可設定為無須稀釋 之狀悲。X ’上述所謂時間差混合,係指連續地遲延時間 流入槽内之氣體,與已流入而滯留之氣體混合而言。 又’連接於上述氣體入口,並不限於燃料氣體供給通 路之上办側,連接於上述氣體出σ,並不限於燃料氣體供 :通路之下游側。例如w 26所示,在燃料氣體供給通路 設置旁通通路,在此旁通通路設置槽之情形,亦能採用將 ㈣通路之下游側連接於槽之氣體人口,將上游側連接於 氣體出口’並且在下游側旁通通路’設置將燃料氣體屢送 至槽之機構。 …不限疋於上述槽之構造。例如亦可為容積不變化之固 定形狀之槽’或疋亦可為當做以往燃氣輪機設備中用以監 視氣體供需平衡之裝置(儲氣器)所使狀内容積變動形= ,槽。所謂的内容積變動形式之槽,意指具有可依據槽内 c做上下動之以氣密方式裝設之蓋構件之槽、可藉由驅動 裝置使得蓋構件積極±τ動來選定發揮最大平衡效果之槽 1276737 可留用此等槽來做為可發揮抑制燃料氣體之 熱里艾動之效果的裝置。 較佳者為該氣體入口,係使燃料氣體從水平朝上 下方傾斜之方向流入槽内。因能有效果地作時間差混合/ 為了要如上述般使得氣體之流入方向傾斜,可 斜官構件(與連通該氣體入口之燃料氣體供給通路形 續),且該傾斜管構件係從水平朝上方或下方傾斜。 又,包含固定遮板,配置於該氣體入口附近之燃料氣 體供給通路内及槽内之任一方,該固定遮板,係傾斜角产 固定之至少一片之百葉片。依此構成,亦能使氣體之流r 方向傾斜。 在氣體入口附近之燃料氣體供給通路内或槽内設置上 述固疋百葉片之方法,例如亦γ ^ J配置设,作為連接於氣體 入口之燃料氣體供給通路之一 ^ 分,而將百葉片裝設於此 殼内。又,例如,亦可接近氣體入口而裝設於槽内部。 氣體熱量變動抑制裝置,齡#I也―人 双夏孕乂佳者為包含設置於該氣體 入口之氣體流入裝置,該氣體流入裝置,構成為能變更燃 料氣體對槽内之流入角度。 亦能採用下述構成:該氣體流人裝置,㈣㈣㈣ 入口附近之燃料氣體供給通路内及槽内之_方所配置之百 葉片’該百葉片’係以能從外部變更傾斜角度之方式擺動 自如地裝設之至少一片之百葉片。 在氣體入口附近之燃料氣體供給通路内及槽内,設置 上述百葉片之方法’例如,能採用與前述之固定百葉片之 10 1276737 設置法相同方法β ,體熱量變動抑制裝置’較佳者為該氣體入口係形成 固從°亥軋體入口當中選擇使燃料氣體流入槽内之氣 =口二來進行氣體人口之切換。其理由在於,藉由諸如 使流入氣體之氣體入口周期性切換,能促進槽内之時間差 混合。 产’皆此札體熱篁變動抑制裝置,亦能採用下述構成:該 亂體出口係形成複數個,與該氣體人刀換同步來 使燃料氣體流出槽外之氣體出口之選擇、切換。 :氣體熱量變動抑制裝置’亦能採用下述構成:複數 個乳體入口之燃料氣體朝槽内之流入方向彼此不同。 氣體熱量變動抑制奘I y. % 勒仰制表置,較佳者為該氣體入口係形成 複數個;包含流量調整 凡 ^ .μ 置 °又置於在各氣體入口所連通 之燃料氣體供給通路;可變 今斤 支更/;,L通於各燃料氣體供給通路 之氣體之流量。豆理由右於 #丄 ^ ^ ’、 在於’糟由例如將通過氣體入口之 乳體流量做周期性切換,妒 η刀換此促進槽内之氣體混合。又,該 机里调整裝置可採用流量調整閥。 氣體熱量變動抑制奘¥ ^ ^ 诵玫、* 動抑^置,較佳者為包含惰性氣體供給 ,連接於該槽,用以將惰性氣 了 Μ丨王孔®々丨L入槽内。其理由在 ;’能在槽内進行燃料氣體盥左 故。 花體與Ν性乳體之時間差混合之 氣體熱量變動抑制裝置,軔 诵故 , 1乂佳者為包含惰性氣體供給 、路,以插入在該氣體入口所連 部> + , 所運通之燃枓氣體供給通路内 之方式來連接,該惰性義辦仳 虱體供給通路之出口 ^,係位於 1276737 該氣體入口上游。其理由在於’能促進燃料氣體與惰性氣 體之混合之故》 〃氣體熱量變動抑制裝置,較佳者為該情性氣體係將從 乳亂製造廠及氣氣製造廠中至少—方之製造廠所排出之廢 棄鼠氣回收者。其理由在於,惰性氣體之供應容易且廉價 :故。又’氧氣製造廠及氮氣製造廢可使用例如在高爐法: 直接還原法等製法所設置者。 壯亦可採用下述構成:包含複數個第一氣體發熱量測量 衣置(於該槽互相離開所設置者),藉由該第一氣體發熱量 ,則量裝置來測量槽内之氣體發熱量分布。 氣體熱量變動抑制裝置,較佳者為包含控制裝置,依 據,第-氣體發熱量測量裝置之測量值來檢測槽内之氣體 熱篁值之分布’依據該氣體熱量值之分布來改變氣體朝槽 内之流入方向。藉此能實現槽内之良好之氣體混合。 氣體熱量變動抑制裝置’較佳者為包含:入口氣體發 熱量測量裝置,設置於在該氣體人π所連通之燃料氣體供 :通路’用以測量入口側氣體熱量值;出口氣體發熱量測 凌置η又置於纟5亥氣體出口所連通之燃料氣體供給通 路,用以測量出口側氣體熱量值。 ▲氣體熱量變動抑制裝置,較佳者為包含控制裝置,依 康'•亥入口轧體發熱夏測量裝置及出口氣體發熱量測量裝置 之測量值’將朝槽流入之流入氣體之熱量變動與從槽排出 之排出氣體之熱量、蠻愈m 里交動做對比,依據此對比結果,使氣體 對槽内之流入方向變化。 1276737 若該槽之頂蓋係構成為能上下移動之情形,較佳者為 包含控制裝置,依據該了頁蓋之上下移動之方向及距離來改 變氣體對槽内之流入方向。其理由在於,可對應頂蓋之高 度來選擇可獲得最適當之氣體混合之氣體流入方向。又, 所謂頂蓋上下移動之槽’如前述,指具有因應槽内遷能上 =動且氣密地裝設的蓋構件(構成頂蓋)之槽,藉由以驅 m蓋構件積極地上下移動來選定可發揮最大平衡效 果之槽容積之槽等。 較佳者為該氣體出口,係形成於偏離氣體入口中心軸 :=長線之位置。其理由在於,能使流入槽之燃 槽内之滞留時間延長之故…所謂氣體入口之中 :長線’例如,指前述傾斜管構件之中心軸之延長線等而 為在該槽之内部設置攪拌裝置’用以攪拌氣體。 本务明之燃料氣體供給設備,且 燃料氣體供給通路,用 燃燒設備;及 用以將乳體以燃料的形式供給於 々_、、、里抑制裝置,用以抑制通過該低埶量供认、s 所供給之燃料氣體之發熱量之變動,κ 給通路 口亥氧體熱量抑制穿晉义 裝置。 、係别述任一氣體熱量變動抑制 路,==二氣體熱量抑制裝置"包含:出口通 通路’在槽之氣體入…料==通路之間〜 燃枓瑕^體供給通路上比出口 13 1276737 之連接點更上游側及下游側 送裝置,設置於該入口通路壬一方之間連接;及氣體壓 ^ ^ ^ A ^ ^ ,將燃料氣體向槽壓送。 :者為在心體熱量抑 路,連接於槽之氣體出口盘 $几3出口通 通路,在# > # _ “、、枓虱體供給通路之間;入口 、峪纟槽之乳體入口與燃 連接點更上游側及下游側的雙方體^通路上比出口通路 置,設置於各入口通路,將機料,間連接;及氣體壓送裝 5 ^ 肝燃枓氣體向槽壓送。 又,#父佳者為該氣體熱量 通路,連接於槽之氣體出進—步包含:出口 口通路’在槽之氣體入口與燃料氣通路之間^ 路連接點更上游側之間連接;回:=τ上比出口通 供給通路上Α σ $ & 連接於燃料氣體 丄比出口通路連接點下游 體壓送η,分別設置於該入口通路:上:側之間;及氣 氣體朝槽及上游側燃料氣體供給通路壓送回Γ通路,將燃料 又,較佳者為該氣體熱量抑制 口連接著下游側之燃料氣體供給通路,之氣體出 連接者上游側之燃料氣體供孔 含:回流通路,在另-方之氣體入口鱼下龍且進-步包 供給通路之間連接;及氣體壓送裝置, 《燃枓氣體 將燃料氣體向槽壓送。 °又於垓回流通路, 又較佳者為該氣體熱量抑制妒置中 口連接著下游側之燃料氣體供給通路,在槽在槽之氣體出 入口連接著上游側之燃料氣體供給通路.曰之方之氣體 回流通路,在槽上游彻丨夕揪_ ,且進一步包含: 在槽上域之燃a體供給通路與槽下游侧之 14 1276737 燃料氣體供給通路之間連接;及氣體壓送裝置,設置於該 回流通路,將燃料氣體從燃料氣體供給通路之下游側向上 游側壓送。 本發明之燃氣輪機設備,具備:燃燒設備;及將氣體 以燃料的形式供給於該燃燒設備之燃料氣體供給設備;該 燃燒設備係燃氣輪機,該燃料氣體供給設備係前述任一燃 料氣體供給設備。 本發明之鍋爐設備,具備:燃燒設備;及將氣體以燃 料的形式供給於該燃燒設備之燃料氣體供給設備; 該燃燒設備係將氣體以燃燒器來燃燒之鍋爐, 該燃料氣體供給設備係前述任一燃料氣體供給設備。 發明效果 依本發明,將製程伴生氣體般有可能發生熱量變動之 低熱量氣體,當作燃料氣體供給於燃氣輪機等之燃燒設備 時,藉由作時間差混合能抑制(緩和)此所供給之低熱量氣 體之熱量變動。丨即(卜因^不-僅^能使變動之ΐ ^ 通 Ϊ濾、器(low少爲si 之變動而僅期之變動殘存,故使用稀釋氣體之稀釋^ 且容易進^/又,有無須使用稀釋氣體之稀釋之情 形0 【實施方式】 參照附圖說明本發明之氣體熱量變動抑制裝置,燃料 氣體供給設備及燃氣輪機設備之實施形態。 15 1276737 圖丨,係表示低熱量氣體供給設備丨(對做為燃燒設備 之燃氣輪機供給燃料氣體(即低熱量氣體)的本發明之燃料 氣體供給設備之一實施形態),及包含此低熱量氣體供給設 備1之燃氣輪機設備之示意的配管圖。燃氣輪機設備係以 燃氣輪機發電設備為例表示。如前述,低熱量氣體係指其 發熱量約12MJ/Nm3以下之氣體而言,其熱量等之特性會 變動者佔多數。 當作此燃料氣體供給設備之低熱量氣體供給設備i, 具備.低熱量氣體供給配管3,係將在直接還原鐵設備s 所產生之伴生氣體(以下,稱為低熱量氣體)作為燃料來供 給於燃氣輪機2的燃料氣體供給通路;及稀釋氣體供給配 官4,為了要稀釋此低熱量氣體,而將稀釋用氣體供給於 低熱量氣體供給配管3。要將此稀釋氣體供給低熱量氣體, 其理由在於:要防止由於低熱量氣體之熱量值變動,以致 超過燃氣輪機时之容許熱量冑圍。|稀釋氣體供給配管 4,設置調整稀釋氣體之流量之流量調整閥(以下,稱為流 調閥)14與流量計18,藉由混合器6連接於低熱量氣體供 給設備1。上述稀釋用氣體能採用惰性氣體、空氣、蒸氣、 燃燒設備等所排出之氣體等。惰性氣體雖可適宜採用氮氣 (Na),但並不限定於乂,亦可為c〇2或如等。在低熱量 氣體供給配管3之較混合H 6下游部分,#時候因會將低 熱量氣體以與稀釋氣體混合之狀態送至燃氣輪機2,故稱 此範圍之配管為混合氣體供給配f 13。在低熱量氣體供給 設備1,配置控制裝置5,用以控制其動作。 16 1276737 在上述低熱量氣體供給配管3之較混合器6上游部分, σ又置·集塵裝置7 ’用以將直接還原鐵設備s所送來之低 =里虱體除塵;及緩衝槽(以下,亦簡稱為槽)1〇,用以暫 τ儲存低熱ϊ氣體。在緩衝槽丨〇,形成:入口丨,連接 上游側之低熱量氣體供給配管3 ;及出口 1〇b,有別於入 1 l〇a係連接於下游側之低熱量氣體供給配管3。此緩衝 槽1〇或後述之緩衝槽31(參照圖6等)係選擇性包含後述 之倾斜g構件35(參照圖6等)、氣體流入裝置36、作為惰 性氣體供給通路之惰性氣體供給配管42,當作氣體熱量變 動抑制裝置機能。 戍衝槽1G係相對大容量,熱量時時刻刻變動而流入之 低f里軋體’在此緩衝槽1〇之内部作時間差混合。即, 同日守机入緩衝槽10之低熱量氣體係分布為從出口 l〇b比 較早流出之部分至滯留於緩衝槽1〇甚晚之部分。另一方 從入口 1 〇a連續流入新氣體,故過去流入之氣體與 新流入氣體不斷地混合。在此,稱此動作為時間差混合。 ^在緩衝槽U)之上游側及下游側,設置用以檢測低熱量 氣體之發熱量之發熱量檢測裝置8、9,在緩衝槽1〇之下 ㈣,^置用以測量流量之流量計"。在圖i雖將此流量 口十U於低熱量氣體供給配管3之緩衝槽⑺與混合器 6之間之部分,但並不限定於此位置。例&,亦;設置二 之混合氣體供給配管13 ’亦可設置於在後述 ::::機2之燃燒器19所連接之燃料配管η。除了低 熱里氣體供給配答3 μ々恭#曰 。配& 3上之發熱夏檢測裝置8、9外,另將 17 1276737 其他複數個發熱量檢測裝置12直接裝設於緩衝槽ι〇。對 此等構件之作用將予後述。 在此,發熱量檢測裝£ 8、9、12,則使用直接測量氣 =之發熱量所謂熱量計,測量可燃成分之含有率(濃度)之 裝置等。若要重視檢測速度時,目前較佳者為使用可燃性 氣體濃度檢測器。再者’對應所適用之低熱量氣體主要含 有之可燃成分之種類’ X,對應產生主要濃度變動之可燁 成分(例如,在直接還原鐵法之伴生氣體係一氧化碳),亦 可使用檢測其成分濃度之濃度檢測器。在本說明書,代表 此等發熱量檢測裝置全體稱為「熱量計」。 “在混合氣體供給配管13設置熱量計15。此目的在於: 藉由監視槽H)之出口側之熱量計9及流量計U,並且監 視混合氣體供給配管13之埶吾呌 皿 n s 之熱里5十15,來判斷上述混合氣 體之表終熱量值是否適當。再者, 冉者右稀釋氧體係使用空氣 或來自燃燒設備之排氣等含有氧氣 合氣體供給配"設置氧氣:二二:體之情形,則在混 ^ 又置虱矶濃度计(未圖示),用以控制混 a氣體之氧氣濃度。 r機If:計15之下游側’設置燃氣輪機2之燃料氣體麼 在從燃料氣體壓縮機16連接至㈣ 燒?9的燃崎17,設置流量調整閱 機 2,連結發電機22。又,雖未R _如 似,、孔輪故 外要―# 雖未圖不’在燃氣輪機2,亦可 -置利用其排氣來發電之排熱回收鍋爐發電設備等。 其次,說明圖1中之緩衝槽1〇 in目士 t 作用效果。如刖述, 衝槽1G,具有與低熱量氣體供給配管3分別連接之入 18 1276737 口 10a與出口 l〇b。因此,所送來之低熱量氣體之全部流 入此緩衝槽1 〇。此緩衝槽之容積大,例如對直徑2〜程 度之低熱量氣體供給配管3,通常設置容積約 20000〜200000m3程度者。熱量時時刻刻變動所送來之低熱 量氣體在緩衝槽内作時間差混合。其結果,從緩衝槽1〇 之出口 10b送出之低熱量氣體之變動幅度一 口氣被縮小, 變動速度一口氣被降下。即,熱量變動被大幅抑制(緩和)。 若上述熱量變動事先被緩和,在下游藉由空氣等之稀釋來 作熱量上升之抑制控制會變得非常容易。將以上之現象參 照著圖2〜圖6來說明。 圖2所不係將圖1之緩衝槽10之容積定為200000m3 時’熱量變動之低熱量氣體以流量5〇〇〇〇〇Nm3/hr供給時之 熱量變動的抑制(緩和)狀態之模擬結果圖。橫軸係表示時 間(分鐘),縱軸係表示低熱量氣體發熱量的氣體熱量值 (kcal/Nm3)。又,圖中以虛線表示之曲線係送往緩衝槽丄〇 之低熱畺氣體之熱量變動(原始變動)。此為實測之樣品。 以實線所表示之曲線係經過充分之時間差混合後,自緩衝 槽10所流出之低熱量氣體之熱量變動(抑制後變動)。如圖 所示:k ’進入緩衝槽1 〇前之低熱量氣體的熱量為自約1 5 3 〇 kcal/Nm〜表鬲約2360 kcal/Nm3做變動。亦即呈現平均值 (1945 kcal/Nm3)之約±21 %之變動幅度。自緩衝槽10流出 之低熱量氣體之熱量變動依據理論計算之結果為自178〇 kcal/Nm3到i960 kcal/Nm3,變動幅度被抑制為平均值(1870 kcal/Nm3)之約±5%。如圖所示般,在變動週期上,短週期 1276737 成分與中週期成分被去除,僅殘存長週期之變動。此效果 對於低熱量氣體之供給流量傾向於緩衝槽之容積愈大愈顯 著。當原始變動之週期短、變動幅度小的情況,從經濟效 益之觀點來看即使縮小緩衝槽之容積也具有效果。 圖 3 所示係低熱量氣體之流量仍維持在 500000Nm3/hr、而緩衝槽 10之容積設為上述原來之一半 (1 00000m3)時之熱量變動之衰減狀態。此時之熱量變動亦 藉由緩衝槽 10之充分的時間差混合被抑制在 1700 kcal/Nm3〜2040kcal/Nm3之範圍内,變動幅度為平均值(1970 kcal/Nm3)之約 ±9%。 圖4所示係低熱量氣體以流量200000Nm3/hi·供給之設 備中,緩衝槽10之容積設為50000m3時之熱量變動之衰 減狀態。此時之熱量變動亦藉由緩衝槽1 0中之充分時間 差混合被抑制在1740 kcal/Nm3〜20 10 kcal/Nm3之範圍内, 變動幅度為平均值(1875 kcal/Nm3)之約±7.2%。 雖未圖示,但低熱量氣體與上述同樣以流量 200000Nm3/hr供給之設備中,將緩衝槽 10之容積設為上 述一半(25000m3)時之變動幅度為平均值(1875 kcal/Nm3)之 約 ±12%。 如圖5所示般,亦可在低熱量氣體以流量200000Nm3/hr 供給之設備中,將容積25000m3之緩衝槽10以並聯方式 設置兩台,於一般運轉時兩台均使用,僅在定期檢查或運 作出現問題等非常時期使用單一槽。 如此般,只要具備可實現低熱量氣體之時間差混合之 1276737 緩衝槽,能大幅抑制低熱量氣體之熱量變動。其結果,於 下游此合空氣、惰性氣體之控制變得非常容易。例如,當 燃氣輪機2之燃料氣體之熱量變動幅度設定為基準熱量= (旦平均值)之±10%的情況下,為了使得緩衝槽下游之變動熱 量平均值與在燃氣輪機2所設定之基準熱量值一致,僅需 Y備符合其規格之容積的緩衝槽,供給一定比例之空氣供 給即可。關於空氣之供給動作變得無須考慮低熱量氣體之 熱量變動。 ' 在極端的情況,若通過緩衝槽1G之低熱量氣體的變動 熱量平均值與在燃氣輪機2所設定之基準熱量值大致一 致則無須稀釋氣體之混合,亦無需供給稀釋氣體之設備。 _在圖 '表示其他緩衝槽(以下,亦簡稱為槽)31。此緩 衝乜3 1 ’係將在習知之燃氣輪機設備當作儲氣器所使用 者,為了要兼用為熱量變動抑制裝置來改造者。即,在槽 31 個別形成入口 、1276737 IX. Description of the Invention: [Technical Field] The present invention relates to a gas heat fluctuation suppression device, a fuel gas supply device, a gas turbine device, and a boiler device. In particular, a gas heat fluctuation suppressing device capable of suppressing the fluctuation of the calorific value, and a fuel gas having the gas heat fluctuation suppressing device, in which the heat of the gas as the fuel of the combustion equipment is changed as a low-calorie gas Supply equipment, and as a combustion equipment (ie, gas turbine equipment and boiler equipment) equipped with a fuel gas supply device. [Prior Art] In the field of steel making, for example, in the case of producing a sharp iron by a blast furnace method, a furnace gas (Blast Furnace Gas, hereinafter referred to as BFG) is produced in the form of an accompanying gas. Since the total heat generation of BFG reaches about half of the calorific value of the coke used, in order to reduce the original price of milling, bfcj is used in various ways in the iron making. BFG produces about 3000 Nm3 per ton of coke, and its composition is c〇2 1〇~18%, c〇22~30%, N2 52~60%, H2 0.5~4%, CH4 0.5~3% . In addition to the above-mentioned components, BFG dust removal contains soot 2~l〇g/Nm3, which is used as a calorific value of 8〇〇kcal/Nm3 after being removed to a level of 0.01g/Nm3. , coke oven, heating furnace, preparation, etc. In recent years, the gas turbine has been able to perform lower-heat combustion due to advances in technology, and the application of BFG to gas turbine fuel for power generation 2 j has been increasing. The low-calorie gas referred to here is defined as a gas having a calorific shoulder of 1276737 12 MJ/Nm3 or less. As a low-calorie gas, as will be described later, it is not limited to a blast furnace gas (BFG), which includes many other types of gases such as coke oven gas (c〇G) and rotary furnace gas (LDG). On the other hand, 'in recent years, we have continuously developed new ironmaking processes other than the blast furnace method (for example, direct reduction iron method such as FINEX & C0REX), and we are looking forward to developing effective use of the associated gases generated by these new processes. The combustion method can also be applied. Regardless of the type of iron making process, the characteristics (gas composition or heat) of the associated rolled body will vary with equipment and operation. Even the same equipment is constantly changing due to the characteristics of each raw material or the reaction process, and is not fixed. Right 4: The most important part of the use of semi-generated gas as a fuel for gas turbines: characteristics - when the heat is exceeded, if the heat tolerance inherent to each gas turbine is exceeded = the upper limit of the range (for example, about +1% of the average calorific value) In the case where the heat is rapidly increased, sometimes the gas in the burner of the gas turbine rapidly becomes abnormally high. For this reason, there is a possibility that the burning point, the turbine's stationary blades and the moving blades are damaged, and the life is shortened. At this time, the economical continuous operation of the gas turbine equipment becomes difficult. : In order to suppress the fluctuation heat of the associated gas, it is known that the technology of using nitrogen is purchased (see, for example, the patent document) and the patent document... With::: accompanied by: when the heat value of the gas fluctuates, it is diluted only by N2. : Body, sometimes it is not possible to fully suppress this change in the gas turbine inherent & valley heat change amplitude Tang or Jiaonian Xian Ai T-T Tian Tian: 3⁄4 combined heat fluctuation speed beans: Hehe:: The heat change of raw gas is impatient In the case of a heat detector:: ...the delay is delayed, so that it cannot be diluted at the right time. If you have to consume a large amount of expensive inert gas, you must ensure that the inert gas is difficult, etc. Therefore, the characteristics of the associated gas are not changed. The BFG that is too significant is only diluted with N2, and it may be effective. However, in the direct reduction iron method, the change in the amount of gas generated and the amount of enthalpy becomes quite significant due to the repeated start and stop of the reactor of small capacity. Therefore, it is difficult to use N2 dilution only. 曰 Patent Document 1: JP-A-2002-155762, pp. Patent Document 2, JP-A-9-317499 The present invention has been made to solve the above problems, and an object of the present invention is to provide a gas for heat fluctuation suppression, which is a fuel gas for a body of a suppressor, a body, etc. (when; fuel is supplied to a combustion device) The heat variation makes the dilution of the fuel gas easy and effective, and even the dilution of the inert gas becomes unnecessary. Further, a fuel gas supply device, the gas heat fluctuation suppression device, and the fuel gas are provided. In the gas turbine equipment and the steel furnace equipment of the present invention, the gas heat fluctuation suppression device of the present invention has: a tank disposed in a fuel gas supply passage for supplying fuel gas to the combustion equipment, and the fuel Temporary storage of gas; a gas inlet formed in the tank for flowing fuel gas into the tank from the fuel gas supply passage; and a gas outlet of 1276737 formed at a different portion of the tank for fuel from the tank Gas flows out to the fuel gas supply path. = Fuel gas supply path is always available The igniting gas _ in the tank, the time difference is present in the tank. Thus, even if the heat value of the fuel gas is changed, the time difference is mixed to reduce the extent of the heat fluctuation. In addition, the heat fluctuation rate is moderated. As a result, it is easy and effective to adjust the heat of the fuel gas to the allowable fluctuation range of the gas characteristics of the combustion equipment, and depending on the average calorific value of the fuel gas, It can also be set to the case where there is no need to dilute. X 'The above-mentioned time difference mixing refers to the gas that continuously flows into the tank continuously delaying time, and is mixed with the gas that has flowed in and stayed. It is connected to the above gas inlet, and It is not limited to the upper side of the fuel gas supply passage, and is connected to the above-described gas out σ, and is not limited to the downstream side of the fuel gas supply passage. For example, as shown by w26, a bypass passage is provided in the fuel gas supply passage, and in the case where the bypass passage is provided with a groove, the gas population connecting the downstream side of the (four) passage to the tank can be used, and the upstream side is connected to the gas outlet. Further, in the downstream side bypass passage, a mechanism for repeatedly feeding the fuel gas to the tank is provided. ...is not limited to the construction of the above grooves. For example, it may be a groove of a fixed shape whose volume does not change, or a groove which can be used as a device for accumulating gas supply and demand balance in a conventional gas turbine plant (storage device). The groove of the so-called internal volume variation means that the groove has a cover member which can be installed in a gastight manner according to the movement of the inside of the groove c, and the cover member can be positively ±τ moved by the driving device to select the maximum balance. The effect tank 1276737 can be used as a device that can suppress the effect of the fuel gas. Preferably, the gas inlet flows into the tank in a direction in which the fuel gas is inclined from the horizontal upward direction. Since the time difference mixing can be effected in an effective manner, in order to incline the inflow direction of the gas as described above, the inclined member (the fuel gas supply passage that communicates with the gas inlet) may be continued, and the inclined pipe member is horizontally upward. Or tilt down. Further, the fixed shutter is disposed in one of the fuel gas supply passages and the grooves in the vicinity of the gas inlet, and the fixed shutter is a louver having at least one of the inclined angles. According to this configuration, the gas flow r direction can also be inclined. a method of providing the above-described solid louver in a fuel gas supply passage or a groove in the vicinity of a gas inlet, for example, also γ ^ J, as a fuel gas supply passage connected to a gas inlet, and installing a louver Set in this shell. Further, for example, it may be installed inside the tank in proximity to the gas inlet. The gas heat fluctuation suppressing device, the age #I, is also a gas inflow device provided in the gas inlet, and the gas inflow device is configured to change the inflow angle of the fuel gas into the tank. It is also possible to adopt a configuration in which the gas flow device is provided, and (4) (4) (4) The louver disposed in the fuel gas supply passage near the inlet and in the groove is swayable so that the inclination angle can be changed from the outside. At least one hundred blades of the ground. The method of providing the above-described louver in the fuel gas supply passage and the groove in the vicinity of the gas inlet can be, for example, the same method as the above-described method of setting the fixed louver 10 1276737, and the body heat fluctuation suppression device is preferably The gas inlet is formed by switching the gas population from the gas inlet port selected from the inlet of the rolling material to the fuel gas. The reason for this is that the time difference mixing in the tank can be promoted by periodically switching the gas inlet of the inflowing gas. It is also possible to adopt a configuration in which the stagnation body stagnation suppression device is formed in such a manner that a plurality of outlets are formed, and the selection and switching of the gas outlets outside the tank are synchronized with the gas cutter. The gas heat fluctuation suppression device ' can also be configured such that the fuel gas of the plurality of emulsion inlets is different from each other in the inflow direction in the groove. The gas heat fluctuation is suppressed by I y. %, and the gas inlet system is formed in plural; preferably, the gas inlet system is formed in plural; and the flow rate adjustment is performed, and the fuel gas supply passage connected to each gas inlet is further disposed. The variable flux is more /;, L is the flow of gas through each fuel gas supply passage. The reason for the beans is right to #丄 ^ ^ ', because the milk is periodically switched, for example, by the flow rate of the milk passing through the gas inlet, and the η knives are used to promote gas mixing in the tank. Further, the adjustment device of the machine can employ a flow regulating valve. The gas heat fluctuation suppression 奘¥ ^ ^ 诵 、, 动 ^ , , , , , , , , , , , , , , , 、 、 、 、 、 、 、 、 、 、 、 、 、 惰性 惰性 惰性 惰性 惰性 惰性 惰性 惰性 惰性 惰性The reason is that the fuel gas can be left in the tank. A gas heat fluctuation suppressing device in which the time difference between the flower body and the waxy milk body is mixed, and therefore, a good gas supply includes an inert gas supply, and is inserted in the gas inlet portion of the gas inlet > The gas supply passage is connected in a manner that the outlet of the inert gas supply passage is located upstream of the gas inlet of 1276737. The reason is that 'the mixture of fuel gas and inert gas can be promoted 〃 〃 gas heat fluctuation suppression device, preferably the inert gas system will be at least from the milk manufacturing factory and the gas production plant. The waste rat waste gas discharged. The reason is that the supply of inert gas is easy and inexpensive: Further, the oxygen production plant and the nitrogen production waste can be used, for example, in a method such as a blast furnace method: a direct reduction method. The sturdy structure may also be configured to include a plurality of first gas calorific value measuring garments (in which the tanks are separated from each other), and by the first gas generating heat, the measuring device measures the calorific value of the gas in the tank. distributed. The gas heat fluctuation suppression device preferably includes a control device for detecting a distribution of gas enthalpy values in the tank according to the measured value of the first gas calorific value measuring device, and changing the gas toward the groove according to the distribution of the calorific value of the gas Inflow direction inside. This enables good gas mixing in the tank. The gas heat fluctuation suppression device preferably comprises: an inlet gas calorific value measuring device, which is disposed in the fuel gas supply passage π connected to the gas person π: for measuring the inlet side gas heat value; and the outlet gas calorific value measurement The η is placed in the fuel gas supply passage connected to the gas outlet of the 亥5 hai to measure the heat value of the gas on the outlet side. ▲The gas heat fluctuation suppression device is preferably a control device, and the measured value of the Ikon 'Hai inlet rolling body heating summer measuring device and the outlet gas calorific value measuring device' will change the heat of the inflowing gas flowing into the groove The heat of the exhaust gas discharged from the trough is compared with the transfer in the middle of m. According to the comparison result, the inflow direction of the gas in the tank is changed. 1276737 If the top cover of the groove is configured to be movable up and down, it is preferable to include a control device to change the inflow direction of the gas in the groove according to the direction and distance of the upper and lower movement of the page cover. The reason for this is that the gas inflow direction in which the most suitable gas mixture can be obtained can be selected in accordance with the height of the top cover. Further, the term "the groove in which the top cover moves up and down" as described above means a groove having a cover member (constituting a top cover) which is movably and airtightly disposed in response to the migrating energy in the groove, and is actively moved up and down by the cover member. Move to select the groove of the tank volume that can maximize the balance effect. Preferably, the gas outlet is formed at a position offset from the central axis of the gas inlet: = long line. The reason for this is that the residence time in the fuel tank of the inflow tank can be extended. In the gas inlet, the long line 'is, for example, an extension line of the central axis of the inclined pipe member, etc., and is provided with stirring inside the groove. The device 'is used to agitate the gas. The fuel gas supply device of the present invention, and the fuel gas supply passage, the combustion device; and the method for supplying the milk as a fuel to the 々,,, and the suppression device for suppressing the confession by the low enthalpy, s The fluctuation of the calorific value of the supplied fuel gas, κ is applied to the passage device to suppress the heat of the body. Any gas heat suppression control circuit, == two gas heat suppression device"includes: the outlet passage "in the tank gas into the material == between the passages ~ the combustion passage on the body supply passage than the outlet 13 1276737 The connection point is further connected to the upstream side and downstream side feeding device, and is connected between one of the inlet passages; and the gas pressure ^ ^ ^ A ^ ^ to pump the fuel gas into the groove. : In the body of the body heat suppression, connected to the gas outlet plate of the tank $ 3 outlet passage, between # ># _ ", between the carcass supply passage; inlet, gutter milk inlet and The two sides of the fuel connection point are disposed on the upstream side and the downstream side of the passage, and are disposed in each of the inlet passages to connect the machine material, and the gas pressure feed 5 ^ liver combustion gas is sent to the tank. , #父佳者 is the gas heat path, the gas inlet and outlet connected to the tank includes: the outlet port passage is connected between the gas inlet of the tank and the fuel gas passage, and the upstream side of the connection point; τ τ 比 出口 σ 供给 供给 供给 供给 供给 供给 供给 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接 连接The side fuel gas supply passage is pumped back to the bypass passage, and the fuel, preferably the gas heat suppression port, is connected to the fuel gas supply passage on the downstream side, and the fuel gas supply hole on the upstream side of the gas outlet connector includes: a return flow Road, in the other side of the gas The mouth of the fish and the connection between the feed channels of the step-and-step package; and the gas pressure feeding device, "the combustion gas sends the fuel gas to the tank. ° is also in the enthalpy return path, and preferably the heat suppression of the gas a gas supply passage on the downstream side is connected to the middle opening of the stack, and a gas return passage of the upstream side is connected to the gas inlet and outlet of the tank at the gas inlet and outlet of the tank, and the gas return passage is in the upstream of the tank, and Further, the method further comprises: connecting a fuel supply passage in the tank upper region to a fuel passage of the 14 1276737 on the downstream side of the tank; and a gas pressure feed device disposed in the return passage to supply the fuel gas from the fuel gas supply passage The downstream side is pressure-fed to the upstream side. The gas turbine apparatus of the present invention includes: a combustion apparatus; and a fuel gas supply apparatus that supplies a gas to the combustion apparatus in the form of a fuel; the combustion apparatus is a gas turbine, and the fuel gas supply apparatus is the aforementioned Any fuel gas supply device. The boiler device of the present invention comprises: a combustion device; and a gas is supplied to the combustion device in the form of a fuel a gas supply device; the combustion device is a boiler that burns a gas by a burner, and the fuel gas supply device is any one of the fuel gas supply devices. According to the present invention, heat generation is likely to occur as a process gas. When the low-calorie gas is supplied as a fuel gas to a combustion apparatus such as a gas turbine, it is possible to suppress (mitigate) the heat fluctuation of the supplied low-calorie gas by mixing the time difference, that is, (buin ^ not - only ^ can变动 ΐ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ Ϊ si si si si si si si si si si si si si si si si si si si si si si An embodiment of a gas heat fluctuation suppression device, a fuel gas supply device, and a gas turbine device according to the present invention will be described with reference to the drawings. 15 1276737 Fig. 1 shows a low-calorie gas supply device 丨 (one embodiment of the fuel gas supply device of the present invention for supplying a fuel gas (i.e., low-calorie gas) to a gas turbine as a combustion device), and including the low-calorie gas A schematic piping diagram of a gas turbine plant that supplies equipment 1. The gas turbine equipment is represented by a gas turbine power plant. As described above, the low-calorie gas system refers to a gas having a calorific value of about 12 MJ/Nm3 or less, and the characteristics such as heat and the like may vary. The low-calorie gas supply device i as the fuel gas supply device includes a low-calorie gas supply pipe 3, and supplies the associated gas (hereinafter referred to as low-calorie gas) generated by the direct reduced iron device s as fuel. The fuel gas supply passage of the gas turbine 2 and the diluent gas supply dispenser 4 supply the dilution gas to the low-calorie gas supply pipe 3 in order to dilute the low-calorie gas. The reason for supplying the diluent gas to the low-calorie gas is to prevent the heat amount of the low-calorie gas from fluctuating so as to exceed the allowable heat of the gas turbine. The diluent gas supply pipe 4 is provided with a flow rate adjusting valve (hereinafter referred to as a flow regulating valve) 14 for adjusting the flow rate of the diluent gas and the flow meter 18, and is connected to the low-calorie gas supply device 1 by the mixer 6. The above-mentioned diluent gas can be a gas discharged from an inert gas, air, steam, a combustion device or the like. Although the inert gas may suitably be nitrogen (Na), it is not limited to ruthenium, and may be c〇2 or the like. In the downstream portion of the low-heat gas supply pipe 3 which is mixed with H 6 , the low-heat gas is supplied to the gas turbine 2 in a state of being mixed with the diluent gas, so that the pipe of this range is the mixed gas supply port f 13 . In the low-calorie gas supply device 1, a control device 5 is disposed to control its operation. 16 1276737 In the upstream portion of the low-calorie gas supply pipe 3 above the mixer 6, the σ-and-dust collecting device 7' is used for dust removal from the direct-reduction iron device s; and the buffer tank ( Hereinafter, it is also referred to as a slot 1 〇 for temporarily storing τ low-heat gas. In the buffer tank, an inlet port is formed, and the low-calorie gas supply pipe 3 and the outlet port 1b are connected to the upstream side, and the low-heat gas supply pipe 3 connected to the downstream side is different from the inlet port 1b. The buffer tank 1A or a buffer tank 31 (see FIG. 6 and the like) to be described later selectively includes an inclined g member 35 (see FIG. 6 and the like) to be described later, a gas inflow device 36, and an inert gas supply pipe 42 as an inert gas supply passage. As a gas heat fluctuation suppression device function. The buffer 1G is relatively large in capacity, and the heat fluctuates at all times and flows into the lower f-rolled body. The time difference is mixed inside the buffer tank 1〇. That is, the low-calorie gas system of the same day entering the buffer tank 10 is distributed from the portion where the outlet l〇b flows earlier to the portion which stays in the buffer tank 1 later. The other party continuously injects new gas from the inlet 1 〇a, so that the inflowing gas and the new inflowing gas are continuously mixed. Here, this action is called a time difference blend. ^ On the upstream side and the downstream side of the buffer tank U), calorific value detecting means 8, 9 for detecting the calorific value of the low-calorie gas are disposed, and below the buffer tank 1 (4), a flow meter for measuring the flow rate is disposed. ". In Fig. 1, the flow rate is 10 U between the buffer tank (7) of the low-calorie gas supply pipe 3 and the mixer 6, but is not limited to this position. In addition, the mixed gas supply pipe 13' of the second embodiment may be provided in the fuel pipe η to which the burner 19 of the :::: 2 machine to be described later is connected. In addition to the low heat gas supply answer 3 μ々 Gong #曰. In addition to the hot summer detecting devices 8 and 9 on the & 3, 17 1276737 other plurality of calorific value detecting devices 12 are directly mounted in the buffer tank. The role of these components will be described later. Here, the calorific value detection device is used for the measurement of the content rate (concentration) of the combustible component, such as a calorimeter that directly measures the calorific value of the gas. When it is important to pay attention to the detection speed, it is currently preferred to use a flammable gas concentration detector. Furthermore, 'corresponding to the type of flammable component mainly contained in the low-calorie gas to be applied, X, corresponding to the enthalpy component which produces a major concentration change (for example, carbon monoxide in the associated gas system of direct reduced iron method), it is also possible to detect the component thereof. Concentration concentration detector. In this specification, the entire calorific value detecting device is referred to as a "calorimeter". "The calorimeter 15 is provided in the mixed gas supply pipe 13. The purpose of this is to monitor the heat meter 9 and the flow meter U on the outlet side of the tank H) and monitor the heat of the mixed gas supply pipe 13 5:15, to determine whether the final calorific value of the above mixed gas is appropriate. In addition, the right dilution oxygen system uses air or exhaust gas from the combustion equipment to supply oxygen gas supply " setting oxygen: 22: In the case of the body, the mixture is also placed in a concentration meter (not shown) to control the oxygen concentration of the mixed gas. r If: the downstream side of the meter 15 'sets the fuel gas of the gas turbine 2 in the fuel The gas compressor 16 is connected to the (four) burning gas 9 of the burning, and the flow rate adjustment machine 2 is connected to the generator 22. Further, although R _ is like, the hole wheel is required to be ―# although not shown in the gas turbine 2. It is also possible to set up a heat recovery boiler power generation facility that uses its exhaust gas to generate electricity. Next, the effect of the buffer tank 1〇in 士 t in Fig. 1 will be explained. As described, the groove 1G has a low The heat gas supply piping 3 is connected to 18 127 6737 port 10a and outlet l〇b. Therefore, all of the low-calorie gas that is sent flows into the buffer tank 1. The volume of the buffer tank is large, for example, the low-calorie gas supply pipe 3 having a diameter of 2 to a degree is usually set. When the volume is about 20,000 to 200,000 m3, the low-calorie gas sent from the heat is constantly mixed in the buffer tank for a time difference. As a result, the fluctuation of the low-calorie gas sent from the outlet 10b of the buffer tank 1 is breathped in one breath. The reduction speed is lowered in one breath. That is, the heat fluctuation is greatly suppressed (mitigated). If the heat fluctuation is previously relieved, it is very easy to suppress the heat rise by dilution with air or the like downstream. The above phenomenon will be described with reference to Fig. 2 to Fig. 6. Fig. 2 does not mean that the volume of the buffer tank 10 of Fig. 1 is set to 200,000 m3, and the heat quantity of the low-calorie gas is supplied at a flow rate of 5 〇〇〇〇〇 Nm 3 /hr. A simulation result of the state of suppression (mitigation) of the heat fluctuation at the time. The horizontal axis represents time (minutes), and the vertical axis represents gas heat value (kcal/Nm3) of low calorific gas heat generation. Moreover, the curve indicated by the broken line in the figure is the heat variation (original variation) of the low-heat enthalpy gas sent to the buffer tank. This is the measured sample. The curve indicated by the solid line is mixed by a sufficient time difference. The heat of the low-calorie gas flowing out of the buffer tank 10 is fluctuated (variation after suppression). As shown in the figure: k 'the heat of the low-calorie gas before entering the buffer tank 1 is about 1 5 3 〇kcal/Nm~ A change of about 2360 kcal/Nm3, that is, a variation of about ±21% of the average value (1945 kcal/Nm3). The heat variation of the low-calorie gas flowing out of the buffer tank 10 is based on the theoretical calculation result from 178〇kcal /Nm3 to i960 kcal/Nm3, the variation range is suppressed to about ±5% of the average value (1870 kcal/Nm3). As shown in the figure, in the fluctuation period, the short period 1276737 component and the medium period component are removed, and only the long period variation remains. This effect tends to increase the volume of the buffer tank for the supply flow of the low-calorie gas. When the period of the original change is short and the fluctuation range is small, it is effective to reduce the volume of the buffer tank from the viewpoint of economic efficiency. In Fig. 3, the flow rate of the low-calorie gas is maintained at 500000 Nm3/hr, and the volume of the buffer tank 10 is set to be attenuated by the heat fluctuation when one half of the original one (100000 m3) is used. The heat fluctuation at this time is also suppressed in the range of 1700 kcal/Nm3 to 2040 kcal/Nm3 by the sufficient time difference mixing of the buffer tank 10, and the fluctuation range is about ±9% of the average value (1970 kcal/Nm3). Fig. 4 shows a state in which the amount of the low-calorie gas is supplied at a flow rate of 200000 Nm3/hi·, and the volume of the buffer tank 10 is set to 50,000 m3, and the heat fluctuation is attenuated. The heat fluctuation at this time is also suppressed by the sufficient time difference mixing in the buffer tank 10 in the range of 1740 kcal/Nm 3 to 20 10 kcal/Nm 3 , and the variation range is about ± 7.2% of the average value (1875 kcal/Nm 3 ). . Though not shown, the low-heat gas is similar to the above-described apparatus having a flow rate of 200,000 Nm 3 /hr, and the fluctuation range when the volume of the buffer tank 10 is half (25,000 m 3 ) is an average value (1875 kcal/Nm 3 ). ±12%. As shown in Fig. 5, in the equipment for supplying low-calorie gas at a flow rate of 200,000 Nm3/hr, two buffer tanks having a volume of 25,000 m3 are arranged in parallel, and both are used during normal operation, and are only periodically inspected. Or use a single slot during extraordinary periods such as operational problems. In this way, as long as the 1276737 buffer tank that can realize the time difference mixing of the low-calorie gas is provided, the heat fluctuation of the low-heat gas can be greatly suppressed. As a result, it is very easy to control the combined air and inert gas downstream. For example, when the heat fluctuation range of the fuel gas of the gas turbine 2 is set to ±10% of the reference heat amount ((an average value)), in order to make the average value of the fluctuation heat downstream of the buffer tank and the reference heat value set in the gas turbine 2 Consistently, it is only necessary to prepare a buffer tank that meets the volume of the specification, and supply a certain proportion of air supply. Regarding the supply operation of the air, it is not necessary to consider the heat variation of the low-calorie gas. In the extreme case, if the average value of the fluctuation heat of the low-calorie gas passing through the buffer tank 1G is substantially the same as the reference heat value set in the gas turbine 2, there is no need to mix the dilution gas, and there is no need to supply the diluent gas. In the figure ', another buffer tank (hereinafter, also simply referred to as a slot) 31 is indicated. This buffer 3 1 ' is used as a gas storage device in a conventional gas turbine apparatus, and is intended to be used as a heat fluctuation suppression device. That is, the inlets are individually formed in the grooves 31,
Jla與出口 3lb,分別連接上游側低熱量 氣體供給配管3與下游側低熱量氣體供給配管3。儲氣器, 係包含於監視氣體量平衡之裝置32。所謂氣體量平衡監視 裝置32’係用以在上游側送來之低熱量氣體之量與燃氣輪 機所需要之消耗氧體暑$ Π ~ τ 矛虱體里之間取得平衡。若有供給氣體量之 變動或燃氣輪機之負載變動之情形,需要在氣體供給量與 泊耗里之間取得平衛。甚征^ . ^ 于卞衡右供給1變成預料外之過剩時,則 排出於系統外,若變成供仏尤 成仏、、、°不足時,則降低燃氣輪機之負 載,或停止一部分之運轉。 、Jla and the outlet 3lb are connected to the upstream side low heat gas supply pipe 3 and the downstream side low heat gas supply pipe 3, respectively. The gas storage device is included in the device 32 for monitoring the gas balance. The gas amount balance monitoring device 32' is used to balance the amount of low-calorie gas sent from the upstream side with the oxygen-consuming gas turbulent body required for the gas turbine. If there is a change in the amount of supplied gas or a change in the load of the gas turbine, it is necessary to obtain a flat between the gas supply amount and the levitation.征征^ . ^ When Yu Yuheng's right supply 1 becomes an unexpected excess, it is discharged outside the system. If it becomes a supply, if the supply is insufficient, the gas turbine load is reduced or a part of the operation is stopped. ,
此氣體量平衡監满I梦署 U 卞衡瓜視衣置32,具備:内容積變動式之上 21 1276737 ’將槽3 1之上端開口藉由封 口藉由封閉構件33cThis gas quantity balance is supervised by I Dream Department U 卞 瓜 瓜 , , , , , , , , , 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21 21
上下移動。邊監視此蓋構件 述槽31 ;蓋構件33a,將槽 專做氣密性封閉,且能上, 34(例如連結於蓋構件33幻 大氣之下壓力的總計,及槽3 j 檜内上下移動。藉此,蓋構件 会量與消耗量之平衡之變化做 33a之上下移動邊採取氣體之 系統外釋放或燃氣輪機負載之降低等措施。將此儲氣器兼 做為低熱量氣體之時間差混合用緩衝槽3 1。 不’有無可上下移動之蓋構件33a,緩衝槽1〇、31 〇 要具有既定之容積,即能發揮前述之低熱量氣體之時間差 匕合的作用。 在圖6〜圖1 9,表示對槽内之氣體之流入方向加以改 良的構成,使能在緩衝槽内作更充分之低熱量氣體之時間 差混合。即,流入槽之低熱量氣體之一部分藉由盡量長時 間滞留於槽内,來作理想之時間差混合,以此為目的加以 改善。概述之,係將氣體對槽内之流入方向,構成為從水 平方向至斜上方或斜下方之構造。其前提,係對流入槽内 之氣體之容積流量,需要使槽之内容積設定為充分大。例 如參照圖2〜圖5所說明之槽1 〇者。在圖6〜圖19,對相同 構件使用相同符號,省略各圖式之說明。 圖6之槽3 1如前述雖係利用儲氣器之緩衝槽31,作 22 1276737 此係舉例表示,對不具有可動式蓋構件33a之槽1〇亦能適 用施加改善於此氣體之流入方向之構成。此對於後述之圖 7、圖8、圖10、圖12〜圖19、圖22、圖23之槽亦相同。 在槽31之周壁之下端附近形成入口 3U與出口 ,分別 連通於上游侧及下游侧之低熱量氣體供給配管3。低熱量 氣體供給配管3雖呈大致水平,但連接於入口 3u之上游 側低熱量氣體供給配管3係連接著連續性朝上方傾斜之傾 斜管構件35。藉此,低熱量氣體對槽内向斜上方上吹,氣 體流之絕大多數不會立即從出口 31b流出,而可在槽内旋· 轉。其結果,低熱量氣體長時間滯留於槽内,被充分混合。 出口 31b之位置從對槽内之氣體之流入方向之延長線離 亦可提高時間差混合之效果。即,較佳者為在從傾斜 官構件35或後述之氣體流入裝置%之中心軸之延長線離 開之位置形成出口 3 lb。總而言之,較佳者為在從入口 1〇a(31a)之中心軸之延長線離開之位置形成出π 31b。此 事,亦可適用於以下要說明之其他槽1〇(31)。 %又,如圖示,為了要擾拌槽31内之氣體,亦可在槽内# 又置:扇等之攪拌裝置28。其理由在於··促進槽内之氣體 之此合,藉此實現更有效果之時間差混合。攪拌裝置28 又置H較佳者為以從出口 31b之附近將氣體朝槽之 内=動之姿勢設置於出口 31b之附近。其理由在於:能 :職出口 3lb流出之氣體壓回槽之内側,能延長氣體之 f邊時間’藉此能實現氣體之有效之時間差混合。又, 較佳者為例如出口係形成於槽之下部時,將氣體朝上方流 23 Ϊ276737 動,出口係形成於槽之上部時 此攪拌穿置^ ^ 才將虱體向下方流動的配置。 規仟我置28,並不限定於 夏 示之槽10、23、31、47,或〜 9 ’對其他圖式所 7$ ^ ^ w $犯發揮熱量抑制效果之:t他樺 才月“又置。又,作為授拌裝f 2 々他槽· 達28a,較佳者為設置於槽之外部。”動機之電動馬 揭由又’作為用以授拌槽内之氣體之機構,亦可將用以你 槽内之氣體循環之配管(未圖示) ㈣以使 成氣體循環用之入口與出口'卩,在槽壁形 去阶其 ^ 、 在此出入口連接循環用之一 ΪΓ二:’在此循環用配管之㈣,設置與上述:拌 被用配管吸出槽内之氣體 J因-循 之循璟,、隹品太丄 久/瓜入槽内,故產生氣體 ^ 產生槽内之氣體攪拌效果。 變動L7所示之槽23,係利用其他種類之儲氣器之内容積 : = 23。此儲氣器,係將以氣密地上下移動: =方式設置之蓋财24,藉由驅動裝置 或纜索26積極妯μ 丁欲& 禾 々 、 移動,能決定槽容積,使操作時之 孔-之仏而平衡效果為最大。%圖示#由使蓋構件Μ小 型化而成為輕量,則亦能適用於大容積之槽,能使用以上 下移動之驅動系統簡單化。此種儲氣器,亦藉由分 低熱量氣體之入口 23a與…3b,在入口…連接上: 魏熱量氣體供給配管3,在出n 23b連接下游側低熱量 ^體供給配管3,能當作發揮熱量變動抑制效果之緩衝槽 連接於入口 23a之上游側低熱量氣體供給配管3, 亦連接著連續性朝上方傾斜之傾斜管構件35。符號W係 24 1276737 支擇纜索26之滑輪。 但疋’上游側低熱量氣體供給配管3配置於槽之底 邛下方。槽23之入口 23a開口於槽底部之周緣附近,傾斜 &構件35從槽底部下方朝上方傾斜而連接於入口 23&。依 此構成亦與圖6之槽3 1同樣能實現有效之時間差混合。 又,因將入口 23a開口於槽底部,故能使上述蓋構件24之 高度變動之容許範圍到達槽底部附近,能活用槽23之内 容積至最大限度。 在以上所說明之槽31、23(圖6及圖7)雖配置朝上方 _ 傾斜之傾斜管構件35,但不限定於此構成。例如,亦可在 未具有蓋構件之固定形狀之肖1〇,在槽周壁之上端附近形 成入口及出口,將低熱量氣體供給配 口。在此情形,於低熱量氣敢供給配…前端連= 接向下方傾斜之傾斜管構件。即,對應上游側低熱量氣體 供給配管3對於槽之連接位置,選擇傾斜#構件之傾斜方 壁之下端附近。上游側及下游側之低熱量氣體供給配管-均配置為大致水平。在上述入口 3ia,配置氣體 3 36’用以變更槽内之氣體流入方向,在此氣體流入裝置36 連接者上游側低熱量氣體供給配管3。槽Η原本 生,入其内部之氣體流而做均句現合之機 : 控:其動作之控制裝置5,使氣體流動= 月b麦更,月b更知:回均勻混合效果。 〜 25 1276737 殼37如與二9 一起參照則明瞭’此氣體流入裝置36,具有. 田作上游側低熱量氣體供 之入口3U之外部;及複數片百^ 。刀形成於槽 間隔收容於此殼37之内部。各葦⑽爾,上下保持 其旋轉“突出於…外:片呈大致水平, 匕精由電動馬達、油壓馬達、空壓缸、油; Π,’能使百葉…上下方向擺動。若使;: 向。藉此上:方向擺動’對應於此,…氣體之流入方 5心”圖6及圖7所示之傾斜管構件35同樣能使 :月上方傾斜。所設置之百葉片之片數未限定,可一片 亦可硬數片。片數若多,雖會提高設定流入方向之效果, 但有流入阻力增加之趨勢。 _又,如圖9所示,在突出於殼37之外部之旋轉軸39, 一置倾斜方向指不器39a,能從氣體流人裝置%之外部顯 不百葉片38之傾斜方向,進而顯示氣體之流入方向。又, 對此百葉Μ 38之傾斜方向,亦可藉由未圖示之檢測器檢 測,而將其檢測訊號發送至控制裝置5,依此訊號使其顯 咖;未圖不之遠隔顯示裝置。又,亦可在殼37形成透視 窗,使能從外面確認百葉片38之傾斜方向。 主再者’如圖示具備可上下移動之蓋構件33a之槽31之 [月形其頂蓋雖會上下移動,但可將其頂蓋之位置訊號輸 入控制裝置5,對應此位置訊號選定最適合之氣體流入方 向例如,若蓋構件33a上升,為了要使氣體流入方向更 朝上方傾斜,係使得百葉片38以離開水平之仰角變大之 26 !276737 方式朝上方擺動。若蓋構件33a下降,為了要使氣體流入 向比現在之方向更朝下方傾斜,係使得百葉片38以離 開水平之仰角變小之方式來擺動。 又在圖8之槽31(包含蓋構件33a),將前述之複數 個熱量計12取出間隔裝設於適當處。藉由此熱量計12之 測里值,能得知槽3丨内之氣體之時間差混合之程度。在 槽31内各部位之熱量值之差(換言之,熱量值之分布)愈 J、,愈能判斷時間差混合係有效果地進行。藉由上述控制 裝置5,一邊變化百葉片38之傾斜角度,藉由此熱量計12 邊連續測量熱量值。藉此,能獲知對時間差混合最適當 之百葉片38之傾斜角度。又,依槽31之蓋構件33a之高 度位置等,其他條件亦能獲知最適當之傾斜角度。將此數 據儲存於控制裝置5,在運轉時藉由此控制裝置5依槽内 之熱量值之分布能控制使百葉片38為最適當之角度。 在連接於圖8之槽3 1的上游侧及下游側低熱量氣體供 、七配笞3,分別没置入口熱量計8與出口熱量計9。因各 熱里汁8、9連續測量熱量值,故能檢測上游側及下游側 之低熱里氣體供給配管3之熱量變動。控制裝置$,因被 輸入表示上游側及下游側各別之氣體熱量變動的訊號,故 藉由將此等訊號做對比,能檢測槽3丨之熱量變動之抑制 效果之程度。因此,藉由此控制裝置5,算出熱量變動抑 制水準之設定值與檢測值之偏差,以降低此偏差(使均勻之 時間差混合效果為最大)之方式來控制百葉片38之傾斜角 度。 27 1276737 例如,藉由上述控制裝置5_邊變化百葉片38之傾斜 角度,—邊藉由熱量計8、9連續地測量熱量值。藉此, 料知對時間差混合最適當之百葉片38㈣角度。又, ^^#31之蓋構件33a之高度位置等,其他條件亦能 得知最適當之傾斜角度。只要將此數據儲存於控制裝置5, 在運轉時藉由此控制裝置5能使百葉片38為最適當之角 ^,以達成降低熱量變動抑制水準之設定值與檢測值之偏 差。 Θ •^槽31之上述氣體流人裝置%,雖在設置於槽 夕之殼37之内部收容百葉片%,但並不限於此種構成。 =可不設置殼,而在槽内之接近入口之位置,以能 攸杉外部擺動驅動之方式設置百葉片38。 w在圖1〇,表示底部之周緣附近設置有氣體流入裝置 认内^有前述之百葉片38)之槽31。上游側低熱量氣體供 二己官3配置於槽31之底部下方,槽3ι之入口…開口 ^底部之周緣附近。在此開口…之下部設置氣體流入 衣6。精由此構成亦與圖8之槽31同樣,藉由熱量計 、12之檢測及控制裝置5之控制能實現有效之時間差 匕合。 =變更氣體之流入方向之氣體流入裝置,不限定於 ,、備百葉片38之上述奘番以 . 向能從外部任意變更的二何η =採用將氣體之流入方 Α ^, 的任何眾知之適宜機構。又,氣體流 置^不处6不限於具備可動之蓋構件33a之槽31,亦能設 月匕變更容積之固定形式之槽UH參照圖i、圖⑴。 28 1276737 以上所說明之氣體流入裝置36亦能使用在使流入槽之 氣體流動變化為橫向之用途上。即,可使氣體流入裝置36 全體以繞中心軸周圍在〇。〜9〇。之範圍内旋轉的方式來裝設 於槽10、23、31。藉此,如前述一邊藉由熱量計8、9、12 連續地確認槽之熱量變動抑制效果、一邊使氣體流之方向 在橫向變化,來設定最適當之流入方向。 圖π所不之槽ίο在其周壁之下端附近,形成入口 i〇a 與出口 10b,在出口 l〇b連接下游側低熱量氣體供給配管 3,將上游側低熱|氣體供給配管3從入口丨〇a插入於槽内 邛。在槽内部,在上游側低熱量氣體供給配管3之前端, 使得朝上方傾斜之傾斜管構件35藉由凸緣等連接構件4〇 裝卸自如地連接。當然,亦可將上游側低熱量氣體供給配 管3連接於入口 10a,在入口 1〇a之内側以裝卸自如的方 式連接傾斜管構件35。因此槽1〇未具有可動之蓋構件, 頂蓋高度係被固定,故不需要頻繁地改變氣體之流入方 向。藉此,若要將低熱量氣體之流量大幅度變更時,使其 能更換為傾斜角度不相同之傾斜管構件35。又,藉由將此 傾斜管構件35繞低熱量氣體供給配管3之中心軸周圍旋 轉(例如,將彼此之凸緣40之螺孔挪移丨節距或更多)來裝 設於低熱量氣體供給配管3,則流入方向不限於上下亦能 向左右(橫向)變化。藉由將傾斜角度相異之傾斜管構件35 如上述繞低熱量氣體供給配管3之中心軸周圍旋轉來裝 設,能使流入方向在上下固定而僅於左右變化。 在圖12所示之槽31形成三個入口 31a,在各入口 31& 29 1276737 將上游側低熱量氣體供給配管3之分歧管(上游側分歧管)3a 透過倾斜官構件35連接。入口 3U及上游側分歧管化不 限於三個,有複數個即可。上述複數個入口 31a隔著間隔 形成於槽之周壁(亦可底部)。在各上游側分歧管3a裝設止 流閥(亦可為流調閥)41,適當選擇此等閥來開閉。藉由以 上述控制裝置5,使三個止流閥41依序開閥閉閥,將三支 上游側刀歧官3a周期性或非周期性轉換,能使對槽内之氣 體流入位置變化。 卜或,替代此止流閥41使用流調閥,亦能使通過三支上 游側7刀歧官3a之氣體流量周期性或非周期性不同。控制裝 置5能藉此方式使槽内之氣體流之形態做最適化控制。此 最適當之形態以依許多操作數據所製作之數據集為基準, 能適用最適合於類似之操作狀況(氣體熱量、氣體流量、氣 體成分、槽内滞留時間等)之數據集。又,雖可不隔裝上述 傾斜管構# 35,但藉由裝設傾斜管構件卩能實現更有效 果之時間差混合。 < Τ又双脚愧针官構件〜心T心釉之 向’特別使上下方向之傾斜角度不相同。藉此,對應於:move up and down. While monitoring the cover member 31, the cover member 33a, the groove is specifically sealed for airtightness, and can be 34, for example, connected to the total pressure of the cover member 33 under the magical atmosphere, and moved up and down in the groove 3 j 桧Thereby, the change of the balance between the amount of the cover member and the consumption amount is performed by moving the system outside the gas 33a or the gas turbine load is reduced. The gas storage device is also used as a time difference mixture for the low-calorie gas. The buffer tank 31 is not required to have a lid member 33a that can be moved up and down, and the buffer tanks 1 and 31 have a predetermined volume, that is, a function of the time difference of the aforementioned low-calorie gas can be exerted. Fig. 6 to Fig. 1 9, which is a configuration for improving the inflow direction of the gas in the tank, so as to enable a time difference mixing of a more sufficient low-calorie gas in the buffer tank, that is, a part of the low-calorie gas flowing into the tank is retained by the time as long as possible. In the tank, the ideal time difference mixing is used for the purpose of improvement. In summary, the inflow direction of the gas in the groove is configured from the horizontal direction to the obliquely upward or obliquely downward. It is necessary to set the internal volume of the gas flowing into the tank to be sufficiently large. For example, the tank 1 described with reference to Figs. 2 to 5 is used. In Fig. 6 to Fig. 19, the same member is used. The same reference numerals will be omitted, and the description of each of the drawings will be omitted. The groove 3 of Fig. 6 is a buffer tank 31 of the air reservoir as described above, and 22 1276737 is used as an example, and the groove 1 which does not have the movable cover member 33a is also The configuration for improving the inflow direction of the gas can be applied. This is also the same for the grooves of Fig. 7, Fig. 8, Fig. 10, Fig. 12 to Fig. 19, Fig. 22, and Fig. 23 which will be described later. The inlet 3U and the outlet are respectively connected to the low-calorie gas supply pipe 3 on the upstream side and the downstream side. The low-calorie gas supply pipe 3 is substantially horizontal, but the low-calorie gas supply pipe 3 connected to the upstream side of the inlet 3u is connected The inclined pipe member 35 is inclined upwardly in the continuous direction. Thereby, the low-calorie gas is blown upward obliquely upward in the groove, and most of the gas flow does not immediately flow out from the outlet 31b, but can be rotated in the groove. As a result, low heat gas for a long time It stays in the tank and is well mixed. The position of the outlet 31b from the extension of the inflow direction of the gas in the tank can also improve the mixing effect of the time difference. That is, it is preferably the gas from the inclined member 35 or a gas to be described later. The position where the extension line of the central axis of the inflow device % is separated forms the outlet 3 lb. In summary, it is preferable to form π 31b at a position away from the extension line of the central axis of the inlet 1〇a (31a). It can be applied to the other tanks 1 (31) to be described below. In addition, as shown in the figure, in order to disturb the gas in the tank 31, a stirring device 28 such as a fan may be placed in the tank. This is to promote the combination of the gas in the tank, thereby achieving a more effective time-difference mixing. The stirring device 28 is preferably placed in a position to move the gas from the vicinity of the outlet 31b toward the inside of the groove. Near the exit 31b. The reason is that it is possible to: 3 lb of the gas flowing out of the service outlet is pressed back to the inside of the tank, and the time of the gas f can be extended, whereby the effective time difference mixing of the gas can be achieved. Further, it is preferable that, for example, when the outlet is formed in the lower portion of the groove, the gas flows upward 23 Ϊ 276737, and when the outlet is formed in the upper portion of the groove, the agitation is placed so that the body flows downward. I am 28, not limited to the summer show slot 10, 23, 31, 47, or ~ 9 'for other schemas 7$ ^ ^ w $ to play a heat suppression effect: t he bi-monthly" Also, as a mixing device f 2 々 槽 · 达 28a, preferably placed outside the slot. "Motorized electric horse is also used as a mechanism for the gas in the mixing tank, The piping (not shown) for circulating the gas in your tank can be used to make the inlet and outlet of the gas circulation '卩, in the shape of the groove wall, and the circulation of the inlet and outlet is used. : 'In this cycle, the piping (4) is set up and the above: the gas in the suction tank is sucked out of the tank, and the product is too long and melon into the tank, so that gas is generated in the tank. Gas agitation effect. The groove 23 shown by the change L7 is the inner volume of the other type of gas storage: = 23. The gas storage device will move up and down in an airtight manner: = the setting of the cover 24, by the drive device or the cable 26 actively 丁 μ 欲 amp amp amp amp amp 移动 移动 移动 移动 移动 移动 移动 移动 移动 移动 移动 移动 移动 移动 能 能 能 能 能 能The hole - the balance and the balance effect is the largest. The % diagram # can be applied to a large-volume tank by making the cover member compact and lightweight, and the drive system that can be moved up and down can be simplified. The gas storage device is also connected to the inlet by the inlets 23a and 3b of the low-calorie gas: the heat-heat gas supply pipe 3, and the downstream low-heat supply pipe 3 is connected to the n 23b. The buffer tank that exerts the effect of suppressing the heat fluctuation is connected to the upstream side low-calorie gas supply pipe 3 of the inlet 23a, and is also connected to the inclined pipe member 35 that is continuously inclined upward. Symbol W Series 24 1276737 The pulley of the cable 26 is selected. However, the upstream side low-calorie gas supply pipe 3 is disposed below the bottom of the groove. The inlet 23a of the groove 23 is open near the periphery of the bottom of the groove, and the inclined & member 35 is inclined upward from the bottom of the groove to be connected to the inlet 23&. This configuration also achieves an effective time difference mixing as well as slot 31 of Fig. 6. Further, since the inlet 23a is opened at the bottom of the groove, the allowable range in which the height of the cover member 24 is varied can reach the vicinity of the bottom of the groove, and the volume inside the groove 23 can be utilized to the maximum. In the grooves 31 and 23 (Figs. 6 and 7) described above, the inclined pipe member 35 inclined upward is disposed, but the configuration is not limited thereto. For example, the inlet and the outlet may be formed in the vicinity of the upper end of the peripheral wall of the groove without the fixed shape of the cover member, and the low-calorie gas may be supplied to the fitting. In this case, in the low-calorie gas supply, the front end is connected to the inclined pipe member which is inclined downward. In other words, the vicinity of the lower end of the inclined wall of the inclined # member is selected in accordance with the position at which the upstream side low-calorie gas supply pipe 3 is connected to the groove. The low-calorie gas supply pipes on the upstream side and the downstream side are all arranged to be substantially horizontal. At the inlet 3ia, the gas 3 36' is disposed to change the gas inflow direction in the tank, and the gas inflow device 36 is connected to the upstream side low-calorie gas supply pipe 3. The trough is originally born, and the gas flow into the interior is used to make the same sentence. The control: the control device 5 of the action, so that the gas flow = month b wheat, the month b knows: the uniform mixing effect. ~ 25 1276737 The shell 37, as it is referred to together with the second nine, clarifies that the gas inflow device 36 has the outside of the inlet 3U of the low-calorie gas on the upstream side of the field; and a plurality of sheets. The knives are formed in the grooves and are accommodated inside the casing 37 at intervals. Each 苇 (10) er, keeps its rotation up and down "exposed to ... outside: the sheet is roughly horizontal, 匕 fine by electric motor, hydraulic motor, air compressor, oil; Π, 'can make louver ... swing up and down. If so; The direction of the swing is 'corresponding to this, ... the inflow side of the gas 5"" The inclined tube member 35 shown in Fig. 6 and Fig. 7 can also be inclined upwards. The number of the louvers provided is not limited, and one piece may be hard or several pieces. If the number of pieces is large, the effect of setting the inflow direction will be increased, but there is a tendency for the inflow resistance to increase. Further, as shown in Fig. 9, in the rotating shaft 39 projecting from the outside of the casing 37, an inclined direction indicator 39a is provided, and the inclination direction of the louver 38 can be displayed from the outside of the gas venting device, thereby displaying The inflow direction of the gas. Further, the tilt direction of the louver 38 can be detected by a detector (not shown), and the detection signal can be sent to the control device 5 to display the signal according to the signal; Further, a see-through window may be formed in the casing 37 so that the inclination direction of the louver 38 can be confirmed from the outside. As shown in the figure, the groove 31 of the cover member 33a that can be moved up and down is shown. [The moon-shaped top cover moves up and down, but the position signal of the top cover can be input to the control device 5, and the position signal is selected most. In the gas inflow direction, for example, when the lid member 33a is raised, in order to tilt the gas inflow direction upward, the louver 38 is swung upward by 26:276737 which is increased from the horizontal elevation angle. When the cover member 33a is lowered, in order to make the gas inflow direction inclined downward from the current direction, the louver 38 is swung so that the elevation angle of the separation level becomes smaller. Further, in the groove 31 (including the lid member 33a) of Fig. 8, the plurality of calorimeters 12 are taken out at appropriate intervals. By using the measured value of the calorimeter 12, it is possible to know the degree of mixing of the time differences of the gases in the tank 3. The more the difference in the heat value of each part in the groove 31 (in other words, the distribution of the heat value), the more it is judged that the time difference mixing system is effective. By the above-described control device 5, the inclination angle of the louver 38 is changed, and the calorific value is continuously measured by the calorimeter 12. Thereby, the inclination angle of the most suitable one hundred blades 38 for the time difference mixing can be known. Further, depending on the height position of the cover member 33a of the groove 31, etc., the most appropriate inclination angle can be known by other conditions. This data is stored in the control unit 5, and during operation, the control unit 5 can control the louver 38 to an optimum angle in accordance with the distribution of the heat value in the tank. On the upstream side and the downstream side of the tank 3 1 connected to Fig. 8, the low-calorie gas supply and the seven-distribution enthalpy 3 are not provided with the inlet calorimeter 8 and the outlet calorimeter 9, respectively. Since the heat values are continuously measured by the hot juices 8, 9, it is possible to detect the heat fluctuation of the low-heat gas supply pipe 3 on the upstream side and the downstream side. The control device $ is input with a signal indicating the change in the heat of the gas on the upstream side and the downstream side. Therefore, by comparing these signals, the degree of suppression of the heat fluctuation of the groove 3 can be detected. Therefore, by the control device 5, the deviation between the set value of the heat fluctuation suppression level and the detected value is calculated, and the inclination angle of the louver 38 is controlled so as to reduce the deviation (the mixing effect of the uniform time difference is maximized). 27 1276737 For example, by the above-described control device 5_, the inclination angle of the louver 38 is changed, and the calorific value is continuously measured by the calorimeters 8, 9. Thereby, it is known that the most suitable louver 38 (four) angle is mixed with the time difference. Further, the height position of the cover member 33a of ^^#31, etc., and the optimum inclination angle can be known by other conditions. As long as this data is stored in the control device 5, the control device 5 can make the louver 38 the most appropriate angle during operation to achieve a deviation between the set value and the detected value of the heat fluctuation suppression level. The above-mentioned gas flow device % of the groove 31 accommodates the louver% in the case 37 provided in the groove, but is not limited to this configuration. = The casing may be omitted, and the louver 38 may be provided in such a manner as to be close to the inlet in the tank, in such a manner as to be able to swing outside the cedar. In Fig. 1A, a groove 31 in which a gas inflow device is provided in the vicinity of the periphery of the bottom portion and which has the aforementioned louver 38) is shown. The low-calorie gas on the upstream side is disposed at the bottom of the bottom of the tank 31, the inlet of the tank 3i, the opening ^ near the periphery of the bottom. A gas inflow 6 is placed under the opening. This configuration is also the same as the slot 31 of Fig. 8, and the effective time difference can be achieved by the control of the calorimeter 12 and the control device 5. = The gas inflow device that changes the inflow direction of the gas is not limited to the above-described enthalpy of the louver 38. It is arbitrarily changed from the outside to the other. Suitable institution. Further, the gas flow path portion 6 is not limited to the groove 31 having the movable lid member 33a, and the groove UH of the fixed type in which the volume is changed can be referred to Figs. i and (1). 28 1276737 The gas inflow device 36 described above can also be used for changing the flow of gas into the trough to a lateral direction. That is, the gas can be made to flow into the entire device 36 so as to be around the central axis. ~9〇. The grooves 10, 23, and 31 are mounted in a range of rotation. As a result, the heat fluctuation suppression effect of the grooves is continuously confirmed by the calorimeters 8, 9, and 12, and the direction of the gas flow is changed in the lateral direction to set the optimum inflow direction. In the vicinity of the lower end of the peripheral wall, the inlet i〇a and the outlet 10b are formed, the downstream side low-heat gas supply pipe 3 is connected to the outlet l〇b, and the upstream low-heat gas supply pipe 3 is connected from the inlet. 〇a is inserted into the tank. In the inside of the tank, at the front end of the upstream side low-calorie gas supply pipe 3, the inclined pipe member 35 which is inclined upward is detachably connected by a connecting member 4 such as a flange. Of course, the upstream side low-calorie gas supply pipe 3 may be connected to the inlet 10a, and the inclined pipe member 35 may be detachably connected inside the inlet 1A. Therefore, the groove 1 does not have a movable cover member, and the height of the cover is fixed, so that it is not necessary to frequently change the inflow direction of the gas. Therefore, when the flow rate of the low-calorie gas is largely changed, it is possible to replace the inclined pipe member 35 having a different inclination angle. Further, the inclined pipe member 35 is rotated around the central axis of the low-heat gas supply pipe 3 (for example, by shifting the screw holes of the flanges 40 of each other by a pitch or more) to be installed in the low-heat gas supply. In the case of the pipe 3, the inflow direction can be changed to the left and right (lateral direction) without being limited to the upper and lower sides. By arranging the inclined pipe members 35 having different inclination angles as described above around the central axis of the low-calorie gas supply pipe 3, the inflow direction can be fixed up and down and only left and right. Three inlets 31a are formed in the groove 31 shown in Fig. 12, and the branch pipe (upstream side branch pipe) 3a of the upstream side low-calorie gas supply pipe 3 is connected to the inclined member 35 at each of the inlets 31 & 29 1276737. The inlet 3U and the upstream side manifold are not limited to three, and there are a plurality of them. The plurality of inlets 31a are formed on the peripheral wall (or the bottom) of the groove at intervals. A check valve (or a flow regulating valve) 41 is attached to each of the upstream branch pipes 3a, and these valves are appropriately selected to open and close. By the above-described control device 5, the three check valves 41 are sequentially opened and closed, and the three upstream side cutters 3a are periodically or non-periodically switched, so that the gas inflow position in the groove can be changed. Alternatively, instead of using the flow regulating valve 41, the flow rate of the gas passing through the three upstream side 7 knives 3a may be periodically or non-periodically different. The control device 5 can thereby optimally control the form of the gas flow in the tank. This most appropriate form is based on a data set created from a number of operational data and can be adapted to a data set that is most suitable for similar operating conditions (gas heat, gas flow, gas composition, residence time in the tank, etc.). Further, although the above-described inclined pipe structure #35 can be omitted, it is possible to achieve more effective time-difference mixing by installing the inclined pipe member. < Τ 双 双 双 官 〜 〜 〜 心 心 心 心 心 心 心 心 心 心 心 心 心 心 心 心 心 ’ ’ Thereby, corresponding to:
之頂蓋高度之變化等之條件變化,能選擇適切之氣體流 方向。 I 雖在圖12未表 个嗖興稷數支上游側分歧管3a 起亦可配置複數支下游側分歧管。亦可構成為在各 分歧管裝設止流閥或流調閥,使其能適當選擇性開閉予 此種構成,藉由控制裝置5,將三支上游側分歧管3a = 30 1276737 性或非周期性切換而使流量變化’並且亦將下游側分歧管 周期性或非周期性切換而使流量變化。藉此,相較於僅控 制上游側分歧管3a,能實現對氣體之時間差混合更佳之氣 體流之形態。 在此槽3 1之俯視圖之圖12(a),雖將上游側分歧管3a 與下游側低熱量氣體供給配管3連接於對向之位置(對槽之 中心軸1 80。之位置),但並不限定於此位置。亦可不對向 之位置。例如亦可連接於兩配管3a、3形成90。、120。、135 等之位置。其理由在於:氣體在槽内滯留有可能更長之 故。此事對其他槽(圖6〜圖8、圖10、圖11、圖13〜圖19) 亦相同。 圖13所示之槽31,係在圖12之槽31之複數個入口 3“ 各別裝設與前述相同之氣體流入裝置36(參照圖9)者。在 此省略軋體流入裝置36之說明。亦可在此槽31配置前述 之複數支下游側分歧管。依此構成,除參照圖12所說明 之乂控制獲侍時間差混合之效果外,並能以百葉片3 8押 制氣體流方向,故能實現對時間差混合更佳之氣體流之: 態0 在圖14〜圖19,分別表示具備將惰性氣體(用以稀釋低 熱置乳體)投入槽之機構的槽 , 在圖1所不之低熱量氣 體t、π配& 3,配置稀釋氣體供认其J m . ^ ^ mm ^ ^ /、、、、6 s 4,用來供給惰性氣 體4稀釋乳體至其緩衝槽 it、f六级上 之下游側。此目的在於:如 月丨J述,在精由緩衝槽1〇(31)抑 之平妁埶旦# 〇 制熱1變動後之低熱量氣體 之千均熱里值右超過燃氣輪機 ’ I谷井熱1值之範圍之 31 1276737 情形,藉由稀釋氣體來降低上述平均熱量值 所需之稀釋氣體(用以降低上述平均熱旦 -疋’右將 衝槽10(31),則使用上述稀釋氣體供办 又於緩 進行之熱詈批 制可簡化或不需要,故有利。例如,從入口曰 .、工 “、、里計 8 之^才合 測結果异出入口側之低熱量氣體之平均旦 J…、里值,在此平的 熱量值若超過燃氣輪機固有之容許熱量值之範圍之情步 將可使熱量值降低至容許值範圍内所需要量之稀^體产 入槽内。X,若入口側之低熱量氣體之平均熱量值急遽: 升時’將所需要量之稀釋氣體投入槽,來 1曰 木和此時之出口側 之平均熱量值大致相同。 —但是,並非僅注重低熱量氣體與所投入之惰性氣體之 ϊ關係即彳,較佳者進一步謀求促進兩氣體混合。基於此 理由,在圖μ〜圖19所示之槽31,與上述稀釋氣體供給 官4 一起,或替代此配f 4,將適當之惰性氣體供給機構 連接於槽31。如此,在從槽1〇(23、31、47)或從其上游有 別於低熱量氣體將惰性氣體供給於低熱量氣體供給配管3 之情形,乃有別於設置於槽1()下游側之流量計11(參照圖 )將僅測里低熱1氣體之流量之流量計29設置於惰性氣體 之供給點上游之低熱量氣體供給配管3(參照圖14〜圖19)。 在圖14及圖15所示之槽31之入口 ,透過與圖6 及圖7所示者同樣之傾斜管構件35連接著低熱量氣體供 1配管3。對此點省略詳細之說明。但是,在低熱量氣體 供給配管3内部插入惰性氣體供給配管42來連接,構成 為則端開放使惰性氣體混入低熱量氣體之氣流中。從而, 32 1276737 低熱量氣體供給配管3 圍則構成為雙重……“生氣體供給配管42之範 氣許之、,’:…提高混合性之觀點較佳者為使惰性 構:速比低熱量氣體之流迷低速。藉由以上所說明之 :成’惰性氣體以與低熱量氣體相同之流入方向投入槽 防止惰性氣體不均句地分佈於低熱量氣體中。 圖16及圖17所+ +播 ^槽31,係替代圖14及圖15所示 ^3^之傾斜管構件35,配置如圖9所示之氣體流入裝 此Λ 氣體流入裝置36之構造、機能省略說明。在 管:2之雙因重具Γ:量氣體供給配管3與惰性氣體供給配 、、, 支即使欲藉由百葉片38改變流入方向, ^槽=之低熱量氣體供給配管與惰性氣體仍朝同樣方向 J :由此構成’能防止在槽内惰性氣體不均勻地分佈 '低熱里軋體中。上述雙重管亦可因應需要改 之多重管。 V —里&寻 在圖18所示之槽31形成鄰近之二個入口 3la、42a。 钭其Ltt 口…將上游侧低熱量氣體供給配管3透過傾 t冓:35連接,在另-方之入…惰性氣體供給配 “Λ過傾斜管構件%連接。為了要使槽内之低熱量氣 二:性氣體之流入方向大致平行’兩傾斜管構件Μ離 二=斜角度係調整為大致相同。如圖示低熱量氣體 配官3與惰性氣體供給配管42雖上下接近來 但亦可在橫向鄰近配置。 於傾^^明之槽中所使用之傾斜管構件並不特別限定 吕構件。亦可使用能使氣體之流入方向固定地傾斜 33 1276737 之其他適當之機構。例如, 百葉片之殼設置於槽之入口 附近設置傾斜角度固定之百 亦可將内設有傾斜角度固定之 l〇a、31a,或在槽内部之入口 葉片。 圖19所不之槽31,係替代圖18所示之槽31之傾 管構件35 ’將如圖9所示之氣體流人裝置%配置於情性 氣體供給配管用之入口 42a。對氣體流入裝置%之構造 機能省略說明。纟_ 31目於上下鄰近之低熱量氣:供 給配管3與惰性氣體供給配管42均具備氣體流入裝置= 故能使兩氣體之流入方向為大致相同方向。但是, 啦》兩氣 體對槽内之流入速度係不相同之特別情形,因能改變兩氣 體之流入方向,各種各樣之控制成為可能。藉由此種構成^ 能防止在槽内惰性氣體不均勻地分布於低熱量氣體中。 投入以上所說明之槽1〇(31)之惰性氣體,較佳者為使 用從氧氣製造廠(在高爐法及FINEX法或COREX法等之直 接還原鐵法所使用者)排放之廢棄氮氣,以及,從與氧氣製 造廠併設之氮氣製造廠所排放之含有微量氧氣之廢棄氮 氣。其理由在於:因回收大量廢棄之氮氣來使用,故能使 操作成本極為低廉。 FINEX法或C0REX法等之直接還原鐵法之情形,因 還原劑係使用氧氣,故必須設置大量製造氧氣之氧氣製造 廠。因在高爐法亦使用氧氣,故即使有規模之差異仍會使 用氧氣製造廠。氧氣製造廠係從空氣分離氮氣來製造氧 氣’分離氧氣後之氣體則當作廢棄氮氣通常排放於大氣。 另一方面,在氧氣製造廠併設氮氣製造廠來製造高純度之 34 1276737 I氣之情形亦多,但即使此情形,已含有微量氧氣之氮氣 仍當作廢棄氮氣排放於大氣。此種廢棄氮氣具有氮氣%, ,量%程度’ l氧氣2〜5%程度之氣體組成,站在低熱量 孔體之可燃界限之觀點而言,係極安全之稀釋氣體。當然, 亦可使用填充於高壓儲氣瓶等之純氮氣。 與上述惰性氣體供給管42同樣,以稀釋低熱量氣體為 目的,替代惰性氣體,亦可設置將空氣或在燃燒設備所產 生之排氣供給於槽内之設備。此供給之方法,與惰性氣體 ㈣直接供給於槽,或供給於槽上游之低熱量氣體供給配 管。但是’空氣或排氣因含有氧氣,㈣要依低熱量氣體 之可燃界限來決定對低熱量氣體混合比率。再者,必須使 其與低熱量氣體充分混合,以避免產生含有氧氣之濃度高 之邛刀。因此,較佳者為在空氣或排氣之供給配管與槽或 低熱量氣體供給配管的連接部設置混合琴。 再參照圖12、圖13及圖19所說明之槽31,以從複數 個配官流入之低熱量氣體(及惰性氣體)之流入方向俯視上 成平行之方式,使上游側低熱量氣體供給配管3、傾斜管 構件35及氣體流入裝置36方向固定,而後連接於槽。但 疋,並不限定於此種構成。例如,亦可構成為氣體流入方 向俯視上朝向槽之中心軸之方向流入。 在圖20及圖21,緩衝槽1〇内之氣體之時間差混合之 模擬結果係以顯示滞留時間與滯留於槽内之氣體比例之關 係的曲線來表不。兩圖均將槽内之氣體之滞留時間(秒)設 在k軸,將滯留之氣體之比率設在縱軸。圖2〇之圖中之 35 1276737 曲線係表示氣體作完全混合之狀態。βρ,氣體從入口流入 槽:之同時係與到此時仍存在於槽内之氣體一口氣混合之 狀匕此等圖,係表示在假設槽之容積為40000m3,所流 入之氣體之流量為5Nm3/sec之條件下的模擬結果。 此圖之思義,係表示對橫軸所示之既定時間内從出口 流出之氣體相對於槽全體之氣體容積之比率。縱軸之1〇 之數值係表示槽全體之氣體體積。例如,從圖中之橫軸上 之數值500秒至600秒(此係表示流入於槽後經過之時間, 即滯留時間)之1〇〇秒間(以符號H1表示),從出口流出之 氣體對槽全體之氣體之比率V1為約〇·689•約〇·621 =約 〇·〇68(約6.8%)。換言之,流入於槽内500秒後至6〇〇秒後 間所滯留之氣體係槽内全體之氣體之約6·8%。由此得知, /”L入於槽未經過1 〇〇秒(僅滯留從〇秒後至丨秒後之間, 以H2表示)之氣體係約〇·17卜〇=約〇176,為全體之約 1 7_6%(以V2表示),但流入於槽内900秒後至1〇〇〇秒後之 間所滯留(以Η3表示)之氣體係約0.863-約0.834=約0.029, 僅全體之約2.9%(以V3表示)。 時間差混合之理想狀態,係不管從流入經過多少時間, 氣體仍以同等之比率混合之狀態,即圖所示之線係直線始 為理想。但是,此狀態在現實上並不存在。將如圖2〇所 示之作完全混合之狀態視為作最佳之時間差混合之狀態較 為妥當。 在圖2 1,表示以能與前述之完全混合狀態對比之方 式,在相同條件下從槽入口朝形成三種類之仰角之方向流 36 1276737 入的氣體之時間差混合之槿 办At 彳、擬、、、σ果。以實線表示完全混合 、恶’以二點鏈線表示從水 、 广十離開60之仰角流入之情形, 以一點鍵線表示從水平餘pq < c。 & K十離開65之仰角流入之情形,以虛 綠表示從水平離開90。之仰自 y 1 p角(大致向垂直上方)流入之情 形。形成仰角流入之任—情形雖均與完全混合狀態不一 致’但可視為接近之曲線。即,可稱為良好之時間差混合。 其結果,如參照圖2〜圖5所鳍日日 1 … 口 3所況明,可有效地抑制氣體熱量 之變動。 在圖22,顯示對低熱量氣體供給配管3以並聯方式設 置之緩衝槽,換言之,表示設置於旁通通路配管(附設在低 熱量氣體供給㈣3)之緩衝槽。此緩衝槽,係將已設置於 既存之低熱量氣體供給設備之儲氣器,藉由稍加構造變更 使其當作氣體熱量變動抑制裝置兼用者。設置於以前之低 熱$氣體供給設備之儲氣器,對低熱量氣體供給配管3僅 以支連通管連接。此一支連通管兼做為出入口。因儲氣 器係僅達成低熱量氣體供給配管内之氣體之供需之平衡即 可,故可與低熱量氣體供給配管以一支連通管做連通。 如圖示’在槽31連接上述連通管43,除此連通管43 之外額外連接著與低熱量氣體供給配管3做連通之入口配 管44。入口配管44與連通管43構成上述旁通配管。此入 口配管44係連接於低熱量氣體供給配管3之與連通管43 之連接部上游側。在此入口配管44設置風扇45,當作將 低熱量氣體送至槽31之氣體壓送裝置使用。藉此,所供 給之低熱量氣體之一部分通過入口配管44流入槽3 1,在 37 1276737 才曰31内低熱量氣體作時間差混合,同量之氣體通過上述 連通管43從;^ 31 π 士 增3 1回流至低熱量氣體供給配管3。是以, 在此情形,連涵餐 逆、g 43亦可稱為出口配管。 、, 固示’在連接上述入口配管44之槽入口 31a,連 接月j述之傾斜管構件35或氣體流人裝置%。藉由此槽Η, 對以低熱量氣體供給配f 3供給燃氣輪機之低熱量氣體之 一部分能抑制其熱量變動。 旦圖23所不係可做為熱量變動抑制機構使用之其他氣體 f平衡監視^ 46。此氣體量平衡監視裝置46採用更經 ’々性之構成’具有分別藉由連通管43與入口配管44來與 低熱量氣體供給配管3彳. y 3做連通之氣密構造的槽47。槽47 中係設置慶力檢測裝置48 8槽47之内壓隨時被監視著。 一旦檢測壓力達到上限區, 出> > a⑴控制裝置5會下達增加設備 内之軋體消耗量之指令,取 > 取侍虱體之供需平衡。其他構造 係與則述緩衝槽10(參昭圖 4 ^ 圈1}相同,可充分做為熱量變動 抑制機構來利用。 ^ 雖未圖示,在連接上述入口 ®己官44之槽之入口 47a, 連接前述之傾斜管構件35或 ^ , 飞汛體流入裝置36。藉由此槽 47 ’對以低熱量氣體供給 e 3供給燃氣輪機之低熱量氣 體之一部分旎抑制其熱量變動。 圖24所示係熱量變 .aa , 勒之低熱量氣體以流量 500000Nm3/hr供給之設備中 將圖22或圖23之槽31(47) 之容積定為200〇〇〇m3,以上诚 曰 至扇45將500000Nm3/hr流 $ 當中之 200000Nm3/hr 的 f 髀、、, ” -¾入槽31(47)之情況下的熱 38 1276737 量變動緩和狀態。圖中以虛線表示之曲線係從直接還原鐵 設備s送來之低熱量氣體之熱量變動(原始變動)。此為前 述之實測樣品。以兩點鏈線所表示之曲線係流出槽而通過 上述連通管43之低熱量氣體之熱量變動(過渡變動)的模擬 結果。實線所示之曲線’係表示氣體流經低熱量氣體供給 配管3之與連通管43連接點下游側之低熱量氣體供給配 管3之氣體的熱量變動(抑制後變動)。如同前述般,進入 緩衝槽31(47)前之低熱量氣體之熱量呈現平均值(1945 kcal/Nm3)之約±21%之變動幅度。但是,從槽31(47)通過連 通管43而與低熱篁氣體供給配管3會合後之氣體熱量變 動係從1690 kcal/Nm3到21〇〇 kcal/Nm3,變動幅度被抑制 為平均值(1895 kcal/Nm3)之約土 11〇/〇。此數值為一例。 如前述般,可利用具有儲氣用槽31(47)之既有設備來 抑制氣體熱量變動。再者,於下游之空氣所進行之低熱量 氣體之稀釋變得容易進行。在圖22與圖23中,將低熱量 氣體送入槽31(47)之入口配管44係連接於低熱量氣體供 給配管3之較出口配管(連通管)43上游側之位置,但並不 限定於此種構成,亦可連接於出口配管43下游側。又, 兩管43、44均可設置複數支。 —在圖25 Μ示與目22之槽同樣對低熱量氣體供給配 管3並聯設置之緩衝槽31。如圖示,在槽3ι與低熱量氣 體供給配管3之間,連接具備風扇45之入口配管44、做 為出口配管之上述連通管43。即,在槽31之入口 3U連 接入口配管44,在出口 Mb連接出口配管43。但是,在 39 1276737 此槽31另外形成入口 49a’在此入口 49a連接回流配管49。 回流配管49連接於低熱量氣體供給配管3之與出口配管43 之連接部下游側。在此回流配管49設置用以將低熱量氣 體迗入槽3 1之風扇45。如圖示,入口配管料及回流配管 49對槽31之連接位置(入口 31a、49a)互相接近。 依此構成,在槽31從低熱量氣體供給配管3之上游側 2過入口配f 44 M送低熱量氣體之一 Μ,同時從低熱 量氣體供給配管3之下游側通過回流配管49 Μ送低熱量 氣體之一部分,作時間差混合而從出口 3ib向連通管流出。 即,因抑制熱量變動之低熱量氣體的一部分會循環,故能 在槽:實現長時間之時間差混合。回流配f 49之長度愈 ,丄犄間差混合之氣體之滯留時間愈長,實現更佳時間差 、上述回流配管49雖從低熱量氣體供給配管3之下 游側連接;^q, 量氣體Μ 口州’但亦可從下游侧連接於低熱 在:、、、口配官3之與入口配管44之連接部上游側。 圖26亦顯示對低熱量氣體供給配管3並聯設置之缓 連接入士圖不,在槽3 1與低熱量氣體供給配管3之間, 口配管44盘做為出口啦其 入口配管4“ 上述連通管43。但是, 之連接却 接於低熱量氣體供給㈣3之與連通管43 槽風下Γ侧。在ί 口配管44設置將低熱量氣體送入 體供給配1扇45。換言之,圖26之緩衝槽31與低熱量氣 除入口西I <間之配官,係從圖25所示之緩衝槽31去 1示入口配管44,將 44之構成。 、囷 所不之回流配管49當作入口配管 40 1276737 依此構成,即使將入口配管44連接於低熱量氣體供給 配管3《與連通管43《連接部下游側,低熱量氣體藉由 風扇45通過入口配管44送入槽31内,作時間差混合而 從出口 3lb流出。即,因抑制熱量變動之低熱量氣體之一 部分循環,故會作有效之時間差混合。並且,上述入口配 官料之長度愈長,在槽内愈會實現長時間之時間差混合。 圖27所示之槽31具有二種類之入口 31a、4 %。在一 方之入口 31a連接上游側低熱量氣體供給配管3,在出口 3卟 連接下游側低熱量氣體供給配管3,再者,在另一方之入 Z 49a之與下游側低熱量氣體供給配管3之間連接回流配 & 9 一個入口 31a、49a係鄰近形成。在回流配管49設 置風扇45,用來將低熱量氣體送入槽。 依此構成,因在槽3 1將已抑制熱量變動之低熱量氣體 =一部分再度送回槽31,再度作時間差混合,故實現更佳 1差/心口。回流配管49之長度愈長,作時間差混合之 虱體之滯留時間愈長。上述回流配管49 _從低熱量氣體 供給配管3之下游側連接於槽31之入口 49a,但亦可從下 游側,連接於低熱量氣體供給配管3之槽上游側。 +連接於以上之緩衝槽3 1(圖25〜圖27)之上游側低熱 量氣體供給配管3及回流配管49,亦能適用傾斜管構件Μ 及氣體流入裝置3 6。 在圖28表示鍋爐設備。在此鍋爐設備,配置:鍋爐52 ; 及低熱1氣體供給設備5丨,用以供給低熱量氣體做為鍋爐 之燃料。上述鍋爐52係將氣體以燃燒器燃燒來產生蒸汽, 41 1276737 使用於發電’或將所產生之蒸汽使用於其他用途之蒸汽供 給用。 此低熱量氣體供給設備5 1,係從圖1所示之低熱量氣 體供給设備1 ’去除设置於緩衝槽10之下游側之低熱量氣 體供給配管3及混合氣體供給配管1 3之機器類者。即, 圖示之低熱里氣體供給设備51 ’具備低熱量氣體供給配管 53 ’將直接還原鐵設備S所產生之低熱量氣體當作燃料供 給鍋爐52。在此低熱量氣體供給配管53,設置:集塵事 置7,用以將從直接還原鐵設備S送來之低熱量氣體除塵; 緩衝槽10,用以將低熱量氣體暫時儲存;發熱量檢測装置 8、9,設置於緩衝槽10之上游側及下游側且用以檢測低 熱量氣體之發熱量;及流量計54,用以測量低熱量氣體之 供給量。對與圖1所示之低熱量氣體供給設備1之機器、 配管類相同者使用同樣符號而省略詳細說明。 設置於此鍋爐用低熱量氣體供給設備5 1之緩衝槽,並 不限定於圖28所示之容積不變化之固定形狀之槽1 〇,亦 能適用既述之其他槽23、3 1、47。在此低熱量氣體供給設 備5 1未設置稀釋氣體供給設備。理由在於:對鍋爐而言, 以緩衝槽10、23、3 1、47來抑制之熱量變動,雖對於獲 得安定輸出而言為希望者,但藉由前述之低熱量氣體之熱 里麦動上升的程度之咼度之熱量值,係不會產生大問題。 在圖28,作為低熱量氣體供給設備5 1之低熱量氣體 之供給對象的燃燒設備,僅設置鍋爐。但是,不限定於此 構成。與鍋爐52 —起,亦可設置燃氣輪機2(圖丨),亦可 42 1276737 併設其他燃燒設備。例如若要併設圖1所示之燃氣輪機2 與銷爐52之情形,在圖1之低熱量氣體供給配管3之熱 量計9與流量計π之間之部分,使從圖28中之熱量計9 之下游側至鍋爐52之低熱量氣體供給配管53分歧來連接 即可。 在以上所說明之實施形態,燃燒設備雖例示燃氣輪機 及鋼爐’但本發明之燃燒設備不限定於燃氣輪機或鍋爐。 在此所說明之氣體熱量變動抑制裝置及低熱量氣體供給設 備’亦能適用於其他燃燒設備,例如,加熱爐、焚化爐等。 在以上所說明之實施形態中,雖所使用之低熱量氣體 係舉出以直接還原鐵製法所產生之伴生氣體,但並不限定 於此。在低熱量氣體方面亦包含高爐氣體(BFG)、旋轉爐 氣體(LDG)、於石灰層所含之石灰層氣體(c〇ai mine gas, 以CMG表示)、以熔融還原製鐵法所產生伴生氣體、於 GTL(Gas-t〇-Liquid)程序中所產生之尾氣(Tail Gas)、伴隨The conditions of the change in the height of the top cover, etc., can be selected to suit the direction of the gas flow. I Although a plurality of downstream side branch pipes are arranged in the upstream side branch pipe 3a of the Zhaoxing branch in Fig. 12, a plurality of downstream side branch pipes may be disposed. It is also possible to provide a check valve or a flow regulating valve in each branch pipe so that it can be appropriately selectively opened and closed to the above configuration, and the three upstream side branch pipes 3a = 30 1276737 are non-linear by the control device 5. Periodically switching to change the flow rate' also changes the flow rate by periodically or aperiodicly switching the downstream manifold. Thereby, the form of the gas flow which is better mixed with the time difference of the gas can be realized as compared with the case where only the upstream side branch pipe 3a is controlled. In Fig. 12(a) of the plan view of the groove 31, the upstream branch pipe 3a and the downstream side low-calorie gas supply pipe 3 are connected to the opposite position (the position of the center axis of the groove is 180), but It is not limited to this position. It can also be misaligned. For example, it may be connected to the two pipes 3a, 3 to form 90. 120. , 135, etc. The reason is that the gas may remain in the tank for a longer period of time. This matter is also the same for the other slots (Fig. 6 to Fig. 8, Fig. 10, Fig. 11, Fig. 13 to Fig. 19). The groove 31 shown in Fig. 13 is a plurality of inlets 3 of the groove 31 of Fig. 12 "each of the same gas inflow device 36 (see Fig. 9) as described above. Description of the rolling body inflow device 36 is omitted here. The plurality of downstream side branch pipes may be disposed in the groove 31. According to this configuration, in addition to the effect of controlling the time difference of the waiting time difference described with reference to FIG. 12, the direction of the gas flow can be controlled by the louver 38. Therefore, it is possible to realize a gas flow which is better mixed with the time difference: State 0 In FIG. 14 to FIG. 19, respectively, a groove having a mechanism for introducing an inert gas (to dilute the low-heating emulsion) into the groove is shown, which is not shown in FIG. Low-calorie gas t, π-match & 3, configured with a dilution gas for J m . ^ ^ mm ^ ^ /, ,, 6 s 4 for supplying inert gas 4 to dilute the emulsion to its buffer tank it, f six The downstream side of the grade. The purpose of this is to: in the case of the monthly 丨J, in the fine buffer tank 1 〇 (31) 抑 妁埶 妁埶 妁埶 〇 〇 〇 〇 〇 〇 〇 〇 变动 变动 变动 变动 变动 变动 变动 变动 变动 右 右 右 右 右Gas turbine 'I Valley well heat 1 value range 31 1276737 case, by diluting the gas to reduce the above average heat The value of the required dilution gas (to reduce the above average thermal denier - 疋 ' right to the sump 10 (31), then the use of the above dilution gas for the tempering process can be simplified or not needed, so it is advantageous For example, the average value of the low-calorie gas on the inlet side from the inlet 曰, 工, 、, 里, 、, 、, 、, 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 、 The range of values will reduce the calorific value to the required amount of dilute into the tank. X, if the average calorific value of the low-calorie gas on the inlet side is imminent: The amount of dilution gas is put into the tank, and the average calorific value of the 1st wood and the outlet side at this time is substantially the same. - However, it is not only the relationship between the low-calorie gas and the inert gas to be injected, but it is better to further seek For this reason, the tank 31 shown in Figs. 19 to 19 is connected to the tank 31 in conjunction with the above-mentioned diluent gas supply unit 4, or instead of the unit f 4 , a suitable inert gas supply mechanism. In the slot 1 (2 3, 31, 47) or the case where the inert gas is supplied to the low-calorie gas supply pipe 3 from the upstream of the low-calorie gas, which is different from the flow meter 11 provided on the downstream side of the tank 1 (see) The flow meter 29 for measuring only the flow rate of the low-heat gas 1 is placed in the low-calorie gas supply pipe 3 upstream of the supply point of the inert gas (see FIGS. 14 to 19). The inlet of the groove 31 shown in Figs. 14 and 15 The low-calmerity gas supply pipe 1 is connected to the inclined pipe member 35 similar to that shown in Fig. 6 and Fig. 7. The detailed description is omitted. However, the inert gas supply pipe is inserted into the low-heat gas supply pipe 3. 42 is connected so that the end is opened to allow the inert gas to be mixed into the gas stream of the low-calorie gas. Therefore, the 32 1276737 low-calorie gas supply pipe 3 is configured to be double... "The gas supply pipe 42 is a gas, and the pressure of the gas supply pipe 42 is improved." The flow of gas is low. By the above, the inert gas is placed in the same direction as the low-calorie gas to prevent the inert gas from being distributed unevenly in the low-calorie gas. Figure 16 and Figure 17 + + The seeding groove 31 is a structure in which the gas flowing into the gas inflow device 36 as shown in Fig. 9 is replaced by the inclined pipe member 35 shown in Fig. 14 and Fig. 15, and the function is omitted. The double gas is supplied with the gas supply pipe 3 and the inert gas supply, and even if the branch is to be changed by the louver 38, the low heat gas supply pipe and the inert gas are still oriented in the same direction J: Thus, it is constructed to prevent the uneven distribution of the inert gas in the tank. The double tube can also be modified as needed. V-Rise & find the groove 31 shown in Fig. 18 to form a neighborhood The two entrances 3la, 42a. 钭Lt t port... The upstream low-calorie gas supply pipe 3 is connected through the tilting t: 35, and the other is supplied in the inert gas supply. In order to make the low-calorie gas in the tank, the inflow direction of the gas is substantially parallel, and the two inclined pipe members are adjusted to be substantially the same. As shown in the figure, the low-calorie gas dispenser 3 and the inert gas supply pipe 42 are close to each other but may be disposed adjacent to each other in the lateral direction. The inclined pipe member used in the groove of the pouring is not particularly limited to the member. Other suitable mechanisms for tilting the gas in the direction of the flow in a fixed manner 33 1276737 can also be used. For example, the louvered shell is disposed near the entrance of the groove and is provided with a fixed angle of inclination. It is also possible to provide a 〇a, 31a with a fixed inclination angle or an inlet blade inside the groove. The groove 31 shown in Fig. 19 is disposed in the inlet pipe 42a for the inert gas supply pipe by the gas pouring device shown in Fig. 9 instead of the pouring member 35' of the groove 31 shown in Fig. 18. The description of the structure of the gas inflow device % is omitted.纟 _ 31 The low-calorie gas adjacent to the upper and lower sides: both the supply pipe 3 and the inert gas supply pipe 42 are provided with a gas inflow device = so that the inflow directions of the two gases are substantially the same direction. However, in the special case where the inflow speeds of the two gas bodies are different in the groove, various control effects are possible because the inflow direction of the two gas bodies can be changed. With such a configuration, it is possible to prevent the inert gas from being unevenly distributed in the low-calorie gas in the tank. The inert gas of the tank 1 (31) described above is preferably used, and waste nitrogen discharged from an oxygen production plant (users of the direct reduction iron method such as the blast furnace method and the FINEX method or the COREX method) is preferably used. A waste nitrogen containing traces of oxygen emitted from a nitrogen manufacturing plant installed in an oxygen manufacturing plant. The reason is that the use of a large amount of discarded nitrogen gas is used, so that the operation cost is extremely low. In the case of the direct reduction iron method such as the FINEX method or the C0REX method, since the reducing agent uses oxygen, it is necessary to provide a large number of oxygen producing plants for producing oxygen. Since oxygen is also used in the blast furnace method, oxygen plants are used even if there is a difference in scale. The oxygen manufacturing plant separates nitrogen from air to make oxygen. The gas that separates oxygen is usually discharged into the atmosphere as waste nitrogen. On the other hand, there are many cases where a high-purity 34 1276737 I gas is produced in an oxygen manufacturing plant and a nitrogen gas production plant, but even in this case, nitrogen gas containing a small amount of oxygen is discharged as waste nitrogen into the atmosphere. Such waste nitrogen has a nitrogen content of %, a degree of oxygen, and a gas composition of about 2 to 5% of oxygen, which is an extremely safe diluent gas from the viewpoint of the flammability limit of the low-heat pore body. Of course, pure nitrogen filled in a high-pressure gas cylinder or the like can also be used. Similarly to the inert gas supply pipe 42, the apparatus for supplying air or the exhaust gas generated in the combustion equipment to the tank may be provided instead of the inert gas for the purpose of diluting the low-calorie gas. This supply method is supplied directly to the tank with the inert gas (4) or to the low-calorie gas supply pipe upstream of the tank. However, the air or exhaust gas contains oxygen, and (iv) the low-heat gas mixing ratio is determined by the flammability limit of the low-calorie gas. Furthermore, it must be thoroughly mixed with a low-calorie gas to avoid the generation of a file containing a high concentration of oxygen. Therefore, it is preferable to provide a mixing piano at a connection portion between the supply pipe of the air or the exhaust gas and the tank or the low-calorie gas supply pipe. Referring to the grooves 31 described with reference to FIG. 12, FIG. 13 and FIG. 19, the upstream low-heat gas supply piping is provided in a manner parallel to the inflow direction of the low-calorie gas (and the inert gas) flowing in from the plurality of the plurality of the plurality of the plurality of the plurality of the plurality of the plurality of the plurality of the plurality of the plurality 3. The inclined pipe member 35 and the gas inflow device 36 are fixed in the direction and then connected to the groove. However, it is not limited to this configuration. For example, the gas inflow direction may be configured to flow in a direction toward the central axis of the groove in plan view. In Figs. 20 and 21, the simulation results of the mixing of the time differences of the gases in the buffer tank 1〇 are shown by a graph showing the relationship between the residence time and the ratio of the gas remaining in the tank. Both graphs set the residence time (in seconds) of the gas in the tank to the k-axis and the ratio of the retained gas to the vertical axis. Figure 35 〇 Figure 35 1276737 The curve shows the state of complete gas mixing. Ρρ, the gas flows into the tank from the inlet: at the same time, it is mixed with the gas which is still present in the tank at this time. The figures indicate that the volume of the tank is assumed to be 40,000 m3, and the flow rate of the inflowing gas is 5 Nm3. Simulation results under the condition of /sec. The meaning of this figure is the ratio of the gas flowing out of the outlet to the gas volume of the entire tank for a given time indicated by the horizontal axis. The value of 1 纵 of the vertical axis indicates the gas volume of the entire groove. For example, from the value of 500 seconds to 600 seconds on the horizontal axis in the figure (this is the time elapsed after flowing into the groove, that is, the residence time), 1 second (indicated by the symbol H1), the gas pair flowing out from the outlet The gas ratio V1 of the entire tank is about 689·689•约〇·621 = about 〇·〇68 (about 6.8%). In other words, about 6.8% of the total gas in the gas system tank which was retained in the tank from 500 seconds to 6 seconds later. From this, it is known that /"L enters the slot without passing for 1 〇〇 second (only after staying from the leap second to the second, after H2), the gas system is about 17 〇 = about 176, which is The total system is about 7_6% (indicated by V2), but the gas system that flows into the tank between 900 seconds and after 1 second (represented by Η3) is about 0.863 - about 0.834 = about 0.029, only the whole About 2.9% (indicated by V3). The ideal state of time difference mixing is the state in which the gas is mixed at the same ratio regardless of the time elapsed from the inflow, that is, the line straight line shown in the figure is ideal. However, this state It does not exist in reality. It is more appropriate to regard the state of complete mixing as shown in Fig. 2〇 as the best time difference mixture. In Figure 2, the way of comparison with the above-mentioned fully mixed state is shown. Under the same conditions, the time difference of the gas flowing from the inlet of the tank toward the direction of the three types of elevation angles is the ratio of the gas into which the gas is mixed. The At 彳, 拟, 、, σ fruit is mixed. The solid line indicates the complete mixing, the evil is 'two points. The chain line indicates the inflow from the elevation angle of the water and the wide ten, and The point key line indicates the case where the horizontal residual pq < c. & K ten leaves 65 from the elevation angle, and the virtual green indicates the distance from the horizontal 90. The y1 p angle (substantially vertically upward) flows in. The formation of the elevation angle inflow - although the situation is inconsistent with the fully mixed state 'but can be regarded as a close curve. That is, it can be called a good time difference mixture. As a result, as shown in FIG. 2 to FIG. 5, the fins day 1 ... 3 It is to be noted that the fluctuation of the heat of the gas can be effectively suppressed. In Fig. 22, the buffer tank provided in parallel with the low-calorie gas supply pipe 3 is shown, in other words, the bypass pipe is provided (attached to the low-heat gas supply (4) 3 The buffer tank is a gas storage device that has been installed in the existing low-calorie gas supply device, and is used as a gas heat fluctuation suppression device by a slight structural change. The gas storage device of the gas supply device is connected to the low-calorie gas supply pipe 3 only by a branch pipe. This one communication pipe also serves as an inlet and outlet. Since the gas storage system only achieves a low-calorie gas supply and distribution The supply and demand of the gas inside can be balanced, so that it can be connected to the low-calorie gas supply pipe by a communication pipe. As shown in the figure, the connection pipe 43 is connected to the groove 31, and the connection pipe 43 is additionally connected. The inlet pipe 44 is connected to the low-calorie gas supply pipe 3. The inlet pipe 44 and the communication pipe 43 constitute the bypass pipe. The inlet pipe 44 is connected to the upstream side of the connection portion of the low-heat gas supply pipe 3 and the communication pipe 43. The inlet pipe 44 is provided with a fan 45 as a gas pressure feeding means for supplying low-calorie gas to the tank 31. Thereby, a part of the supplied low-calorie gas flows into the tank 3 through the inlet pipe 44 at 37 1276737. The low-calorie gas in the crucible 31 is mixed as a time difference, and the same amount of gas is returned to the low-calorie gas supply pipe 3 through the above-mentioned communication pipe 43 from ?31 π 士3. Therefore, in this case, the culvert is reversed and g 43 can also be called export piping. The solid state is connected to the groove inlet 31a of the inlet pipe 44, and the inclined pipe member 35 or the gas flow device % is connected. By this tank, a part of the low-calorie gas supplied to the gas turbine by the low-heat gas supply distribution f 3 can suppress the heat fluctuation. The other gas used in the heat fluctuation suppression mechanism is not shown in Fig. 23, f balance monitoring ^ 46. The gas amount balance monitoring device 46 has a groove 47 having a hermetic structure in which the low-heat gas supply pipe 3彳.y3 is connected by the communication pipe 43 and the inlet pipe 44, respectively. The inner pressure of the 8th groove 47 is set to be monitored at any time in the groove 47. Once the detected pressure reaches the upper limit zone, the >> a(1) control device 5 will issue an instruction to increase the consumption of the rolling stock in the equipment, and take > to balance the supply and demand of the servant. The other structure is the same as the buffer tank 10 (refer to Fig. 4^ring 1}, and can be sufficiently used as a heat fluctuation suppression mechanism. ^ Although not shown, the inlet 47a of the slot connecting the inlets and the mains 44 is not shown. And connecting the aforementioned inclined pipe member 35 or ^, the flying body inflow device 36. By means of the groove 47', a portion of the low-calorie gas supplied to the gas turbine by the low-calorie gas supply e3 is suppressed from being thermally changed. The heat is changed to .aa, and the volume of the low-calorie gas supplied at a flow rate of 500000 Nm3/hr is set to 200 〇〇〇m3 of the groove 31 (47) of Fig. 22 or Fig. 23, and the above is since the fan 45 will be 500000 Nm3. /hr flow $ in the case of 200000Nm3/hr of f 髀, ,, ” -3⁄4 into the slot 31 (47) in the case of heat 38 1276737 volatility mitigation state. The curve shown by the dotted line is from the direct reduced iron equipment s The heat variation (original variation) of the low-calorie gas sent. This is the above-mentioned measured sample. The curve indicated by the two-dot chain line is the heat variation (transitional variation) of the low-calorie gas passing through the communication pipe 43 through the communication pipe 43. Simulation results. The solid line shows The curve ' indicates a heat fluctuation (change after suppression) of the gas flowing through the low-calorie gas supply pipe 3 on the downstream side of the connection point of the communication pipe 43 between the low-calorie gas supply pipe 3, and enters the buffer tank 31 as in the foregoing. The amount of heat of the low-calorie gas is about ±21% of the average value (1945 kcal/Nm3). However, the gas that has merged with the low-heat gas supply pipe 3 through the communication pipe 43 from the groove 31 (47) The change in heat is from 1690 kcal/Nm3 to 21〇〇kcal/Nm3, and the variation is suppressed to an average value (1895 kcal/Nm3) of about 11 〇/〇. This value is an example. As described above, it can be used with The gas tank 31 (47) has equipment to suppress the variation of the heat of the gas. Further, the dilution of the low-calorie gas by the downstream air is facilitated. In Figs. 22 and 23, the low-calorie gas is sent. The inlet pipe 44 of the inlet groove 31 (47) is connected to the upstream side of the outlet pipe (communication pipe) 43 of the low-calorie gas supply pipe 3, but is not limited to such a configuration, and may be connected downstream of the outlet pipe 43. Side. Also, two tubes 43, 44 can be set In the same manner as shown in Fig. 25, the buffer tank 31 provided in parallel with the low-calorie gas supply pipe 3 is shown in Fig. 25. As shown in the figure, a fan is connected between the groove 3ι and the low-calorie gas supply pipe 3. The inlet pipe 44 of the 45 is the communication pipe 43 as the outlet pipe. That is, the inlet pipe 3 is connected to the inlet pipe 3 of the groove 31, and the outlet pipe 43 is connected to the outlet Mb. However, at 39 1276737, the groove 31 additionally forms the inlet 49a'. At this inlet 49a, a return pipe 49 is connected. The return pipe 49 is connected to the downstream side of the connection portion of the low-calorie gas supply pipe 3 and the outlet pipe 43. Here, the return pipe 49 is provided with a fan 45 for sucking low-calorie gas into the groove 31. As shown in the figure, the connection positions (inletes 31a, 49a) of the inlet pipe and the return pipe 49 to the grooves 31 are close to each other. With this configuration, the tank 31 sends one of the low-calorie gases from the upstream side 2 of the low-calorie gas supply pipe 3 through the inlet and the f 44 M, and the lower side of the low-calorie gas supply pipe 3 passes through the return pipe 49. One part of the heat gas is mixed as a time difference and flows out from the outlet 3ib to the communication pipe. In other words, since a part of the low-calorie gas which suppresses the fluctuation of the heat circulates, it is possible to realize mixing in the tank for a long time. The longer the length of the reflow distribution f 49 is, the longer the residence time of the gas mixed with the inter-turn difference is, and the better the time difference is, and the reflow piping 49 is connected from the downstream side of the low-heat gas supply pipe 3; The state 'but may be connected to the upstream side of the connection portion of the low heat in the :, , and the port 3 and the inlet pipe 44 from the downstream side. Fig. 26 also shows a slow connection of the low-calorie gas supply pipe 3 in parallel, between the groove 31 and the low-calorie gas supply pipe 3, and the port pipe 44 as an outlet, the inlet pipe 4" The tube 43. However, the connection is connected to the low-heat gas supply (4) 3 and the side of the communication tube 43. The 配 port 44 is provided with a low-calorie gas supplied to the body supply unit 45. In other words, the buffer of Fig. 26 The valve 31 and the low-calorie gas removal inlet I < between the buffer tank 31 shown in Fig. 25, the inlet pipe 44 is shown in Fig. 25, and the structure of 44 is used. The piping 40 1276737 is configured such that the inlet pipe 44 is connected to the low-heat gas supply pipe 3 and the downstream side of the connection portion of the communication pipe 43 and the low-calorie gas is sent into the groove 31 through the inlet pipe 44 through the fan 45. Mixing and flowing out from the outlet 3lb. That is, a part of the low-calorie gas that suppresses the change of heat is partially circulated, so that an effective time-difference mixing is performed. Moreover, the longer the length of the inlet-distributed material is, the longer it is in the tank. Time difference The tank 31 shown in Fig. 27 has two types of inlets 31a and 4%, and the upstream side low-calorie gas supply pipe 3 is connected to one of the inlets 31a, and the downstream side low-calorie gas supply pipe 3 is connected to the outlet 3卟. A return port is connected between the other side Z 49a and the downstream side low-calorie gas supply pipe 3. An inlet 31a, 49a is formed adjacent to each other. A fan 45 is provided in the return pipe 49 for sending low-calorie gas According to this configuration, the low-calorie gas which has suppressed the heat fluctuation in the groove 31 is returned to the groove 31 again, and the time difference is mixed again, so that a better one difference/heart opening is realized. The longer the length of the return pipe 49 is. The longer the residence time of the carcass which is mixed by the time difference, the recirculation pipe 49_ is connected to the inlet 49a of the groove 31 from the downstream side of the low-calorie gas supply pipe 3, but may be connected to the low-calorie gas supply pipe from the downstream side. The upstream side of the tank 3 is connected to the upstream side low-calorie gas supply pipe 3 and the return pipe 49 of the above-mentioned buffer tank 31 (Fig. 25 to Fig. 27), and the inclined pipe member Μ and the gas inflow device 36 can also be applied. In Figure 2 8 denotes a boiler apparatus in which the boiler apparatus is configured: a boiler 52; and a low-heat 1 gas supply apparatus 5丨 for supplying a low-calorie gas as a fuel for the boiler. The boiler 52 is a system for burning a gas to generate steam. 41 1276737 is used for generating electricity or using steam generated for other purposes. This low-calorie gas supply device 5 1 is removed from the low-calorie gas supply device 1 ' shown in Figure 1 The low-calorie gas supply pipe 3 and the mixed gas supply pipe 13 of the downstream side of the 10th. That is, the illustrated low-heat gas supply device 51' includes a low-calorie gas supply pipe 53' to directly reduce the iron device S. The generated low-calorie gas is supplied to the boiler 52 as a fuel. The low-calorie gas supply pipe 53 is provided with a dust collecting device 7 for dusting the low-calorie gas sent from the direct reduced iron device S, and a buffer tank 10 for temporarily storing the low-calorie gas; The devices 8, 9 are disposed on the upstream side and the downstream side of the buffer tank 10 for detecting the calorific value of the low-calorie gas, and the flow meter 54 for measuring the supply amount of the low-calorie gas. The same reference numerals are given to the same components and piping as those of the low-calorie gas supply device 1 shown in Fig. 1, and detailed description thereof will be omitted. The buffer tank provided in the low-calorie gas supply device 5 1 for the boiler is not limited to the groove 1 of the fixed shape in which the volume shown in Fig. 28 is not changed, and the other grooves 23, 3 1 and 47 as described above can be applied. . The low-calorie gas supply device 51 is not provided with a diluent gas supply device. The reason is that, for the boiler, the heat fluctuations suppressed by the buffer tanks 10, 23, 31, and 47 are desirable for obtaining a stable output, but the heat of the low-calorie gas described above rises. The degree of calorie of the degree of enthusiasm does not cause major problems. In Fig. 28, as the combustion equipment to which the low-calorie gas of the low-calorie gas supply device 51 is supplied, only the boiler is provided. However, it is not limited to this configuration. Together with the boiler 52, it is also possible to provide the gas turbine 2 (Fig. 2) or the 42 1276737 and other combustion equipment. For example, if the gas turbine 2 and the pin furnace 52 shown in Fig. 1 are to be provided in parallel, the portion between the calorimeter 9 and the flow meter π of the low-calorie gas supply pipe 3 of Fig. 1 is such that the calorimeter 9 from Fig. 28 is used. The low-heat gas supply pipe 53 on the downstream side to the boiler 52 may be connected to each other. In the embodiment described above, the combustion apparatus is exemplified by a gas turbine and a steel furnace. However, the combustion apparatus of the present invention is not limited to a gas turbine or a boiler. The gas heat fluctuation suppression device and the low-calorie gas supply device ‘described herein can also be applied to other combustion devices such as a heating furnace, an incinerator, and the like. In the embodiment described above, the low-calorie gas used is an accompanying gas produced by the direct reduced iron method, but is not limited thereto. The low-calorie gas also includes blast furnace gas (BFG), rotary furnace gas (LDG), limestone gas (c〇ai mine gas, represented by CMG) contained in the lime layer, and associated generation by smelting reduction iron production. Gas, Tail Gas generated in the GTL (Gas-t〇-Liquid) program, accompanying
油精製程序自油沙所產生之伴生氣體、因使用電漿之垃圾 火^0所產生之氣體、包含廚餘之一般廢棄物在掩埋地經發 酵、分解過程所產生之甲烷氣體(LandfUl gas)、以及使得 其他類似原料經過化學反應所伴生之氣體等之低熱量氣 體田然,上述氣體可僅單獨含有,亦可如BFG與LDG 之混合氣體般,將複數之不同氣體做混合來適用於本發 明。 i業t可利用t 依本發明,將製程伴生氣體般熱量會變動之低熱量氣 43 1276737 體當作燃料氣體供給於燃氣輪機等燃燒設備之情形,因妒 抑制低熱量氣體之熱量變動,故能使稀釋氣體所進 釋有效日& 1 .. 稀 且谷易。又,有時亦無須以稀釋氣體進行稀釋。又, 亦此沿用既存之儲氣器來架構可抑制熱量氣體變動 罟。 〈凌 t圖式簡單說明】 係表示本發明之燃料氣體供給設備之—實施形 、匕3低熱置氣體供給設備之燃氣輪機發電設備之立 的配管圖。 思 圖2,係表示藉由通過圖1之緩衝槽使低熱量氣 …、!· ’菱動緩和之狀態之一例的圖。 一 圖3,係表示藉由通過緩衝槽使低熱量氣體 動緩和之狀態之其他例的圖。 … 圖4,係表示藉由通過緩衝槽使低熱量氣 動緩和之狀態之其他例的圖。 … 圖5,係、表示纟目丨之燃:氣輪機發電設備所設置之緩 %槽之其他例的配管圖。 偷播圖係表示在圖1之燃氣輪機發電設備所設置之緩 封槽之,、他例的部分截面前視圖。 圖7’係表示在圖i之燃氣輪機發電設備 衝槽之其他例的部分截面前視圖。 “置之緩 圖 8,>(系本 _ ,、表不在圖1之燃氣輪機發電設備 ^ 衝槽之其他例的部分截面前視圖。 “又置之緩 圖 9,你本-丄 乐表不使用於圖8之緩衝槽之氣體流入裝置之 44 1276737 一例的立體圖。 圖10,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖11,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖1 2,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖1 3,係表示在圖1之燃氣輪機發電設備所設置之缓 衝槽之其他例的部分截面前視圖。 圖14,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖1 5,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖1 6,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖1 7,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖1 8,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖19,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的部分截面前視圖。 圖20,係表示緩衝槽内之氣體之時間差混合之模擬結 果之一例的圖。 圖2 1,係表示緩衝槽内之氣體之時間差混合之模擬結 45 1276737 果之其他例的圖。 圖22,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的配管圖。 圖23,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的配管圖。 圖24,係表示藉由通過圖22或圖23之緩衝槽使低熱 量氣體之熱量變動緩和之狀態之一例的圖。 圖25,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的配管圖。 圖26,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的配管圖。 圖27,係表示在圖1之燃氣輪機發電設備所設置之緩 衝槽之其他例的配管圖。 圖28,係表示含有本發明之其他實施形態之低熱量氣 體供給設備的鍋爐設備之示意配管圖。 【主要元件符號說明】 1 :低熱量氣體供給設備 2 :燃氣輪機 3 :低熱量氣體供給配管 3a :分歧管 4 :稀釋氣體供給配管 5 :控制裝置 6 :混合器 7 :集塵裝置 46 1276737 8 :入口熱量計 9 :出口熱量計 10 :緩衝槽 10a :入口 10b :出口 11 :流量計 12 :熱量計 1 3 :混合氣體供給配管 14 :流調閥 15 :熱量計 16 :燃料氣體壓縮機 17 ··燃料配管 1 8 :流量計 19 :燃燒器 20 :流調閥 22 :發電機 23 :緩衝槽 23a :入口 23b :出口 24 :蓋構件 25 :驅動裝置 26 :纜索 27 :滑輪 28 :攪拌裝置 1276737 28a :電動馬達 29 :流量計 31 :緩衝槽 3 la :入口 31b :出口 32 :氣體量平衡監視裝置 33a :蓋構件(上部槽) 33b :下部槽 33c :封閉構件 34 :配重塊 35 :傾斜管構件 36 :氣體流入裝置 37 :殼 38 :百葉片 3 9 :旋動軸 39a :傾斜方向指示器 40 :連接構件 41 :止流閥 42 :惰性氣體供給配管 42a :入口 43 :連通管(出口配管) 44 :入口配管 45 :風扇 46 :氣體量平衡監視裝置 1276737 47 :槽 47a :入口 47b :出口 48 :壓力檢測裝置 49 :回流配管 49a ··入口 5 1 :低熱量氣體供給設備 52 ··鍋爐 53 ··低熱量氣體供給配管 54 :流量計 S :直接還原鐵設備 49The oil refining process is derived from the associated gas produced by the oil sand, the gas generated by the garbage fire using the plasma, and the methane gas (LandfUl gas) produced by the fermentation and decomposition process of the general waste containing the kitchen waste. And a low-calorie gas such as a gas that causes other similar raw materials to undergo a chemical reaction, the gas may be contained alone, or may be mixed with a plurality of different gases as a mixed gas of BFG and LDG. invention. According to the present invention, the low-calorie gas 43 1276737 in which the process-related gas-like heat is changed is supplied as a fuel gas to a combustion device such as a gas turbine, because the heat variation of the low-heat gas is suppressed, so that Make the dilution gas release effective day & 1 .. thin and easy. Also, sometimes it is not necessary to dilute with a diluent gas. Moreover, the structure of the existing gas storage device is also used to suppress the change of the heat gas. <Brief Description of the Drawings] A piping diagram showing the gas turbine power generating apparatus of the fuel gas supply apparatus of the present invention, which is a low-calm gas supply apparatus. Figure 2 shows the low-calorie gas by using the buffer tank of Figure 1. · A diagram of an example of a state in which the rhythm is moderated. Fig. 3 is a view showing another example of a state in which a low-calorie gas is gently relaxed by a buffer tank. Fig. 4 is a view showing another example of a state in which low-heat gas is moderated by a buffer tank. Fig. 5 is a piping diagram showing another example of a slow groove provided by a gas turbine power generation facility. The sneak shot is shown in the partial seal cross section of the gas turbine power plant of Fig. 1, which is provided by the gas turbine power plant. Fig. 7' is a partial cross-sectional front view showing another example of the punching of the gas turbine power generating apparatus of Fig. i. "Setting the slow map 8, > (this is a partial cross-sectional front view of the other example of the gas turbine power plant ^ punching groove of Figure 1. "And the slow map 9, you - this music table does not Fig. 10 is a partial cross-sectional front view showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 11 is a view showing a state in which a gas inflow device of the buffer tank of Fig. 8 is used. Fig. 1 is a partial cross-sectional front view showing another example of a buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 1 is a partial cross-sectional front view showing another example of a buffer tank provided in the gas turbine power generating apparatus of Fig. 1. A partial cross-sectional front view showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 14 is a partial cross-sectional front view showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 15 is a partial cross-sectional front view showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 16 is a view showing the gas turbine power generating apparatus of Fig. 1. A partial cross-sectional front view of another example of the buffer tank. Fig. 17 is a partial cross-sectional front view showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 1 is a diagram showing the gas turbine generating power in Fig. 1. A partial cross-sectional front view of another example of a buffer tank provided in the apparatus. Fig. 19 is a partial cross-sectional front view showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 20 is a view showing the inside of the buffer tank. Fig. 2 is a diagram showing an example of the mixing of the time difference of the gas in the buffer tank. Fig. 22 is a diagram showing the gas turbine power plant of Fig. 1. Fig. 23 is a piping diagram showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 24 is a view showing the passage of Fig. 22 or Fig. 23 FIG. 25 is a view showing another example of a state in which the heat dissipation of the low-calorie gas is moderated. FIG. 25 is a view showing another example of the buffer tank provided in the gas turbine power generating apparatus of FIG. Fig. 26 is a piping diagram showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 27 is a piping diagram showing another example of the buffer tank provided in the gas turbine power generating apparatus of Fig. 1. Fig. 28 is a schematic piping diagram of a boiler apparatus including a low-calorie gas supply apparatus according to another embodiment of the present invention. [Description of main components] 1: Low-calorie gas supply device 2: Gas turbine 3: Low-heat gas supply piping 3a: branch pipe 4: dilution gas supply pipe 5: control device 6: mixer 7: dust collecting device 46 1276737 8: inlet calorimeter 9: outlet calorimeter 10: buffer tank 10a: inlet 10b: outlet 11: flow meter 12 : calorimeter 1 3 : mixed gas supply pipe 14 : flow regulating valve 15 : calorimeter 16 : fuel gas compressor 17 · fuel pipe 1 8 : flow meter 19 : burner 20 : flow regulating valve 22 : generator 23 : Buffer tank 23a: inlet 23b: outlet 24: cover member 25: drive unit 26: cable 27: pulley 28: stirring device 1276737 28a: electric motor 29: flow meter 31: buffer tank 3 la: inlet 31b: outlet 32: gas Quantity balance monitoring device 33a: cover member (upper groove) 33b: lower groove 33c: closing member 34: weight 35: inclined pipe member 36: gas inflow device 37: case 38: louver 3 9 : rotary shaft 39a: Inclination direction indicator 40: connection member 41: check valve 42: inert gas supply pipe 42a: inlet 43: communication pipe (outlet pipe) 44: inlet pipe 45: fan 46: gas balance monitoring device 1276737 47: groove 47a: Inlet 47b: Outlet 48: Pressure detecting device 49: Reflow piping 49a · Inlet 5 1 : Low-calorie gas supply device 52 · Boiler 53 · Low-calorie gas supply pipe 54: Flow meter S: Direct reduced iron device 49