發明說明（1 ) 一 '一 --- <發明所屬技術領域> 本I月係關於一種瓦斯燃燒裝置，特別是關於一種使 瓦4燃燒為之不完全燃燒之檢測動作之安全性提升之瓦斯 jfX ^ 罢 __ 、、、凡、，可以適用於瓦斯熱水器與煤氣爐等種種之瓦斯 燃燒裝置。 <習知之技術> 開示於特開平9·217929號公報之構造作為給熱水器 者係-種在瓦斯燃燒器在陷於不完全燃燒狀態時，具有 使運轉動作強制停止之機能者。 邮在該熱水器’如第6圖所示，在用以切換供給熱水能 ^選擇的使其燃燒之第1及第2瓦斯燃燒器11、12所收納之 蓋二的下端連接供氣風扇13同時，由多數吸熱風扇ΐ4、Μ 與貝通此等之通水管15所形成之熱交換部16，係位置於前 述第1及第2瓦斯燃燒器11、12的上方。 一方面，如第6圖、第7圖所示，在蓋1〇的上部前面形 成具有與該蓋1〇之橫向寬度約略相等之開口寬度之排氣口 同時該排氣口 18與蓋_之熱交換部16，係藉通路調 即邛17連通。而且，在由.上述通路調節部17連繫於棑氣口 18之通路擴大部2〇之構成壁設置用以檢測燃燒排氣之一氧 化碳濃度之CO傳感器19。 其次’說明上述熱水器之動作。 藉由供氣風扇13之供氣，在只有第2瓦斯燃燒器⑵然 燒後（小忐力狀4) ’在第1瓦斯燃燒器u之外周區域上升之 來自第1瓦斯燃燒器11之供氣風413之空氣與第2瓦斯燃燒 528841 A7 B7 發明説明（2 (請先閲讀背面之注意事¾再填寫本頁) 器12之燃燒排氣，藉傾斜配設之吸熱風扇14、14群，合流 成使其等在其下游侧相衝撞，同時藉此在前述空氣被稀釋 之燃燒排氣，由通路調整部17通過C0傳感器19之配設部， 由排氣口 18向外吐出。 而且，以C0傳感器19檢測之前述燃燒排氣之一氧化碳 濃度，若超過預先訂定之基準值後，控制裝置21判斷該狀 態，關閉設置於第1及第2瓦斯燃燒器u、12之瓦斯電路22， 使燃燒強制停止，藉此確保安全狀態。 在该熱水器，在只使如上述一方之第2瓦斯燃燒器12 燃燒時，亦可將來自該第2瓦斯燃燒器12之燃燒排氣與位於 熄火狀恶之在第1瓦斯燃燒器丨丨外周區域上升之空氣，在配 訂丨 没成八字狀吸熱風扇14、14群與通路調整部17之部位混 合。從而，在配設有C0傳感器19之通路擴大部2〇内，依場 所燃燒排氣濃度之散亂變小，藉此可以高精度檢測由第工 及第2瓦斯燃燒器u、12全體所產生之燃燒排氣之一氧化碳 濃度。 火 <發明欲解決之課題> 但是，上述習知之熱，水器，一氧化碳濃度之檢測動作 之女疋性無法藉C 0傳感器19來確保，同時具有所謂在第1 及第2瓦斯燃燒器丨丨、丨2之燃燒初期產生較多酸性度較高之 霧狀液體粒子，附著於C0傳感器19而易使此等部位腐蝕之 問題。 此乃由於C0傳感器19曝曬於燃燒排氣之流動之中。亦 即，在上述習知之熱水器，C0傳感器19在裸露之狀態下配Description of the invention (1) "One" --- <Technical Field to which the Invention belongs> This January relates to a gas combustion device, and in particular, to the improvement of the safety of a detection action that causes the combustion of tile 4 to be incomplete. Gas jfX ^ __ ,,,, and, can be applied to various gas combustion devices such as gas water heaters and gas stoves. < Known technology > The structure disclosed in Japanese Patent Application Laid-Open No. 9/217929 serves as a water heater-a device having a function for forcibly stopping the operation when the gas burner is trapped in an incomplete combustion state. As shown in FIG. 6, the water heater is connected to an air supply fan 13 at the lower end of the cover 2 accommodated in the first and second gas burners 11 and 12 which are selected to switch the supply of hot water energy and burn. At the same time, the heat exchange section 16 formed by the majority of the heat-absorbing fans ΐ4, M and Betong's water-passing pipes 15 is positioned above the aforementioned first and second gas burners 11, 12. On the one hand, as shown in FIGS. 6 and 7, an exhaust port having an opening width approximately equal to the lateral width of the lid 10 is formed on the front of the upper portion of the lid 10, and the exhaust port 18 and the lid The heat exchanging unit 16 is connected by a channel regulator, ie, 邛 17. Further, a CO sensor 19 for detecting the concentration of carbon monoxide in the combustion exhaust gas is provided on the constituent wall of the passage expansion section 20 connected to the radon port 18 by the passage adjustment section 17. Next, the operation of the water heater will be described. By the air supply from the air supply fan 13, after only the second gas burner is burned (small pressure 4), the supply from the first gas burner 11 rises in the outer periphery of the first gas burner u. The air of the air wind 413 and the second gas are burned 528841 A7 B7 Invention description (2 (Please read the notes on the back ¾ before filling out this page) The combustion exhaust of the device 12, by the heat absorption fans 14, 14 groups inclined The confluence causes it to collide on its downstream side, and at the same time, the exhaust gas from which the aforementioned air is diluted is combusted, and the passage adjustment portion 17 passes through the arrangement portion of the C0 sensor 19 and is spit out from the exhaust port 18. If the carbon oxide concentration of one of the aforementioned combustion exhaust gases detected by the C0 sensor 19 exceeds a predetermined reference value, the control device 21 judges the state and closes the gas circuit 22 provided in the first and second gas burners u and 12 so that Combustion is forcibly stopped to ensure a safe state. In this water heater, when only the second gas burner 12 of the above-mentioned one is burned, the combustion exhaust gas from the second gas burner 12 and the flame located in the flameout state can be used. In the 1st gas burner 丨The air rising in the outer area is mixed in the portion where the heat sink fans 14 and 14 which are not formed in a figure shape and the passage adjusting portion 17 are mixed. Therefore, the passage expanding portion 20 provided with the C0 sensor 19 is burned and exhausted according to the place. The dispersion of the gas concentration is reduced, so that it is possible to detect the carbon oxide concentration of one of the combustion exhaust gas generated by the entire second and second gas burners u and 12. With high precision, the problem to be solved by the invention is as follows. The son-in-law of the conventional heating, water heater, and carbon monoxide concentration detection operation cannot be ensured by the C 0 sensor 19. At the same time, it has the so-called acidity that is generated in the initial combustion of the first and second gas burners 丨 丨, 丨 2 The higher mist-like liquid particles are attached to the C0 sensor 19 and are liable to corrode these parts. This is because the C0 sensor 19 is exposed to the flow of combustion exhaust. That is, in the conventional water heater, the C0 sensor 19 matches in the naked state
528841 五、發明説明（3 設於燃燒排氣通路之排氣口 18近旁之擴大通路2〇内，因 此，該C0傳感器19形成曝曬於燃燒排氣之流動之中之狀 悲。k而，隨著第1及第2瓦斯燃燒器π、丨2之燃燒量變化， 藉供氣風扇13之旋轉數變化，流過c〇傳感器19之配設部之 燃燒排氣的流速急變後，以該急變之燃燒排氣流，大大的 變化C0傳感器19冷卻程度，使得該〇〇傳感器19溫度變 化，使其電氣特性發生變化。因此，co傳感器（19)一氧化 碳濃度之檢測動作變成不安定。 又，在各燃燒器之燃燒初期，熱交換部16等並未充分 的昇溫，由於接觸於此燃燒排氣被冷卻至露點以下，所以 酉欠性度較问之燃燒生成水形成霧狀液體粒子並大量發生。 而且’包含上述多量之液體粒子之燃燒排氣，接觸於曝 在燃燒排氣流之中之C0傳感器19後，前述燃燒排氣中之队 體粒子附著於該C0傳感器19，co傳感器丨9很容易受到: 中所包含之酸性成分所腐蝕。 h 本發明係有鑒於上述問題點而所構建而成者，『在♦ 自瓦斯燃燒器之燃燒排氣流動之排氣通路設置傳感 器，用以檢測-氧化碳之濃度』，藉co傳感器謀求提升二 氧化碳濃度之檢測動作之安定性，同時防止於瓦斯燃燒 之燃燒初期生成之酸性液體粒子附著於⑺傳感器為課= <解決課題的手段> 〔1項〕 為解決上述課題之本發明之技術手段為『前述⑶傳感 器係收納於排氣貯留箱内’又設有—由前述排氣貯留箱： 曬 液 來 器 本紙張尺度適用中國國家標準（CNS) A4規格（21〇X297公楚）528841 V. Description of the invention (3 is provided in the enlarged passage 20 near the exhaust port 18 of the combustion exhaust path, so the C0 sensor 19 forms a state of exposure to the flow of the combustion exhaust. With the changes in the combustion amounts of the first and second gas burners π and 丨 2, the rotation speed of the air supply fan 13 is changed, and the flow rate of the combustion exhaust gas flowing through the configuration section of the c0 sensor 19 is rapidly changed. The combustion exhaust gas flow greatly changes the cooling degree of the C0 sensor 19, which causes the temperature change of the 00 sensor 19 to change its electrical characteristics. Therefore, the detection action of the CO sensor (19) carbon monoxide concentration becomes unstable. Also, in In the initial stage of combustion of each burner, the heat exchange unit 16 and the like did not heat up sufficiently, and the exhaust gas contacted by the combustion was cooled below the dew point. Therefore, the degree of deficiencies was relatively low, and the generated water formed mist-like liquid particles and occurred in large numbers. And 'combustion exhaust gas containing the above-mentioned large amount of liquid particles comes into contact with the C0 sensor 19 exposed to the combustion exhaust gas, the particles in the aforementioned combustion exhaust gas adhere to the C0 sensor 19, co The sensor 丨 9 is easily corroded by the acidic components contained in: h The present invention is constructed in view of the above-mentioned problems, "The sensor is provided in the exhaust path of the combustion exhaust flow from the gas burner For the purpose of detecting-the concentration of carbon oxides ", the co-sensor is used to improve the stability of the detection action of the carbon dioxide concentration, and at the same time prevent the acidic liquid particles generated in the initial combustion of gas combustion from adhering to the tritium sensor. Means > [1] The technical means of the present invention to solve the above-mentioned problem is that "the aforementioned ⑶ sensor is stored in an exhaust storage box" and is also provided by the aforementioned exhaust storage box: a suntanner is applied to the paper size China National Standard (CNS) A4 Specification (21 × 297)
、il— (請先閲讀背面之注意事項再填窝本頁) 4 528841 五、發明説明（4 ) 構成壁突出，且於周側壁設置义 動中之通氣孔貫通之通氣管，：出“梅排氣之流 尸_ e又，珂述通氣管内與前述排 氣貯留箱内係相互連通。』 依上述技術手段，由通翕 < 逋礼孔知入通氣管内之燃燒排 虱，逐漸的擴散至該通氣管内 & ^ ^ ^r 運叹於此等之一端開放部 之排氣射留箱内。藉此，婵燒 ^ L .....几排矾在排氣貯留箱内以約略 月?'止之狀態滞留，C 〇傳竭哭花；士、g — . M 成曝m於該滞留狀態之燃燒 纟乳中之狀[從而，前述co傳感器檢測 之燃燒排氣之一氧化碳濃度。静止狀心 〔2項〕 『在前述排氣貯留箱之構成壁形成漏氣孔，用以將貯 氣貯留箱内之燃燒排氣漏出於前述排氣通路』，排 内之燃燒排氣由漏氣孔漏出，在適度之範圍促進 5亥排氣射留箱内之換氣。 〔3項〕 在前述第1項或第2項中，『前述 於前述通氣管之方…* 隔者多數形成 气於二 軸線方向』，多數之通氣孔形成隔著間隔分 :動疒官之軸線方向。'從而，燃燒排氣即使在層流狀態 :動的％合，流過該層之厚度方向之不同部位之燃燒排 乳，在上述多數之通氣孔被取樣，此等擴散至通氣管内及 留箱内。藉此’藉C0傳感器提升—氧化碳一 〔4項〕 在從前述第1項至第3項中，『前述通氣管與前述排氣 本紙張尺度適财關家標準（_ A4規格⑽χ297公酱）， Il— (Please read the precautions on the back before filling in this page) 4 528841 V. Description of the invention (4) The ventilation tube is formed with protruding walls, and ventilating holes through the ventilating holes are set on the peripheral side wall. Exhaust corpse _ e, Keshu ventilation pipe and the above-mentioned exhaust storage tank are connected to each other. ”According to the above-mentioned technical means, the combustion lice and lice in the ventilation pipe which are known by Tongli ' Lili Kong, gradually spread. To the vent pipe & ^ ^ ^ ^ sighed in the exhaust injection retention box of one of these open ends. By this, burn ^ L ..... a few rows of alum in the exhaust storage box to approximately The state of the stagnation stays, and C 〇 passes exhausted crying; Shi, g —. M become the state exposed to the burning milk of the stagnant state [thus, the carbon dioxide concentration of one of the combustion exhaust gas detected by the aforementioned co sensor. Stationary center [item 2] "A leak hole is formed in the constituent wall of the exhaust gas storage tank to leak the combustion exhaust gas in the gas storage tank out of the aforementioned exhaust path." Leakage of stomata promotes ventilation in the 5H exhaust emission retention box within a moderate range. [3 items] In the first or second item, "the above-mentioned side of the ventilating tube ... * The majority of the spacers form the gas in the two-axis direction", and the majority of the vent holes are formed through the interval: the axis direction of the moving eunuch. 'Thus, Even if the combustion exhaust gas is in a laminar flow state: the dynamic% is combined, the combustion milk discharged through different parts in the thickness direction of the layer is sampled in most of the above vent holes, and these diffuse into the vent pipe and the retention box. This' Improved by the C0 sensor-carbon oxide one [4 items] In the above items 1 to 3, "the aforementioned vent pipe and the aforementioned exhaust paper size are suitable for financial standards (_ A4 size ⑽χ297 公 酱)
丨丨訂丨 (請先閱讀背面之注意事項再填寫本頁) 五、發明説明（5 ) 貯留箱之集合體，係位置於調整前述排氣通路之通路截面 形成之通路调整部之下游側』，由配設多數之瓦斯燃燒器中 之不同瓦斯燃燒器所生成之一氧化碳濃度之不同燃燒排 氣藉通過通路調整部時之流速變化被亂流化，藉此，混 合丽述一氧化碳濃度之不同燃燒棑氣而使濃度均勻化。 <發明的效果> 本發明由於為上述構造，所以具有以下特有之效果。 由於C0傳感器可檢測處於靜止狀態之排氣貯留箱内 之燃燒排氣之一氧化碳濃度，所以不會如既述習知者燃燒 排氣之流動吹至C0傳感器，使之冷卻而使性能發生變Z 者。從而，即使燃燒排氣急遽地做流速變化，該C0傳感哭 之檢測動作也不會變成不安定情況。X，由於C0傳感器‘ 曝曬於燃燒排氣流之中，所以在瓦斯燃燒器之燃燒初期所 產生之包含多量液體粒子之燃燒排氣吹至co傳感器，前述 液體粒子不會附著於此等，也就不用擔心因該燃燒排氣中 所包含之酸性成分腐蝕C0傳感器。 在第2項，可使由生成時至未經過多餘時間之燃燒排 氣容易貯留於排氣貯流油。從而，藉適度設定前述漏氣 孔之大】、確保一氧化$厌漠度之檢測動作之安定性，且^ 以適當的設定檢測動作之應答性。 在第3項，由於分散之多數通氣孔形成於通氣管之軸 線方向，所以提升了如既述之在層流狀態流動之燃燒排氣 之一氧化碳濃度之檢測精度。 、 在第4項，由於藉調整排氣通路之通路截面形成之通 528841 A7 ---~----— B7 五、發明説明（ό ) "職~〜-- 路凋正部，促進燃燒排氣的混合，所以藉C0傳感器可以更 加的提升一氧化碳濃度之檢測精度。 〈發明的實施型態> 其次’說明本發明之實施型態。 第1圖為本發明之瓦斯燃燒裝置例之熱水器之縱截面 圖，第2圖為切斷第丨圖之線部分之熱水器之側面圖。 °亥給熱水為包含有：燃燒器盒部3 1、熱交換器41、及 排氣集合筒51。該燃燒器盒部31，係用以收納燃燒器；該 熱交換器41，係連設於燃燒器盒部31的上端；該排氣集合 筒51，更連設於該熱交換器41之上方。彼等各部具有如以 下之具體構造。 〔針對燃燒器盒31〕 在形成於上方開放之矩形箱狀燃燒器盒3丨之底壁形 成供氣口 32,同時在該供氣口 32連接供氣風扇33之吐出 部。又，上述供氣口32之上方空間，係以多數透孔34、Μ 所形成之供氣分布板35劃分為上下。而且，在該供氣分布 板35之上方並設小燃燒器36與大燃燒器37，當熱水器在小 月匕力狀恶動作下，僅燃燒，小燃燒器36，在中能力狀態動作 時，則僅燃燒大燃燒器37,進一步，在大能力狀態動作時， 則使小燃燒器36與大燃燒器37同時燃燒。 〔針對熱交換器41〕 連設於上述燃燒器盒部3 1上端之熱交換器41具有罐 體42與通水管43，在以蛇行狀態貫通罐體42的上端近旁之 通水管43之處連設多數吸熱風扇44、44群。 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 、^τ— 4 五 發明說明（7 ) 〔針對排氣集合筒51〕 •連設於上述熱交換器41上端之排氣集合筒51包含 有‘以52、排氣導引板55、筒體54、及傳感器箱61。 X ; “P 52 ’係形成於下端開放之矩形箱狀；該排氣導引 板55係以劃分成上下之樣態配設其内部；該筒體μ，係 連接於導官部52與頂棚孔53 ;該傳感器箱61，係配設於上 v頁棚孔53之下方。在该傳感器箱61内收納用以檢侧燃燒 排氣之一氧化碳濃度之後述之CO傳感器。 *排氣導引板55 上述排氣導引板55，由於在劃分導引部52成上下之矩 形狀頂板56外周形成彎曲下垂部57，所以該彎曲下垂部57 被小螺釘58、58固定於導管部52之周側板⑽。又，如第3 圖所不，在排氣導引板55之矩形狀頂板56開設在其長向一 端近旁作為通路調節部之排氣料ϋ59，藉此確保在該排 氣誘導口 59與傳感器箱61之配設部間較大之距離。 *傳感器箱01 如第3圖〜第5圖所示，上述傳感器箱61係由收納c〇傳 感器60之排氣貯留箱62與由其一端突出之通氣管〇所構 成，在前述排氣貯留箱62内配設於較c〇傳感器6〇之配設部 還罪通氣官63側之覆板64。而且，如第5圖所示，覆板64 之&覓度係设疋成比排氣貯留箱62之彼等還短，藉此等， 介由與覆板64之兩側緣與排氣貯留箱62之兩側壁73、乃之 間隙部65、65，連通CO傳感器60之配設部與通氣管63側。 又，覆板64形成上下間隔係由通氣管63側隨著愈接近傳 528841 五、發明説明（8 ) 感器60的前端而成愈大之狀態，彎曲成 < 字狀截面。從而， 在由覆板64之先端中央延伸至傾斜上方之上傾斜板64〇的 内面，即使生成並附著排水，此等由於通過上傾斜板Mo 流動至其傾斜下方，所以可以防止該排水66滴到CO傳感器 60上之不利情況。 又，在排氣貯留箱62中，在位於通氣管63側之前壁部 70開設漏氣孔71。 一方面，在通氣管63，在面臨由形成於上述排氣導引 板55之排氣誘導口 59所吐出之後述燃燒排氣之流動側之側 壁形成通fl孔67、67 ’另-方面’也在該通氣管63之底壁 形成通氣孔67、67。而且，此等通氣孔67、67係隔著間隔 以-定節距配列在通氣管63之軸方向。從而，燃燒排氣即 使以層流狀態流動，流動於層之厚度方向不同部位之燃燒 排氣，亦可以由多數通氣孔67、67進入通氣管^内。① 如第4圖所示’由於C〇傳感器6〇收納於保護罩68内之 瓦斯檢測元件與由電阻元件所形成之電子元件群69所構 成’介由形成於保護罩68之窗49、49而連通前述電子元件 群69之配設部與排氣貯留箱62内。 〔動作之實驗〕 其次，實際說明上述熱水器之動作。 在小能力狀態下開始供應熱水動作後’由未圖示之點 火裝置僅使小燃燒器36開始作動。 一方面，來自供氣風扇33 0/1 ^ 出工虱介由透孔34、 ，被擴散成由供氣分布板35之全勺 g勺貝出，該擴散空 本紙張尺Μ财關家辟(_ Α▲⑵0Χ297公嫠7丨 丨 Order 丨 (Please read the precautions on the back before filling this page) 5. Description of the invention (5) The assembly of the storage box is located on the downstream side of the passage adjustment section formed by adjusting the passage cross section of the aforementioned exhaust passage " The different combustion exhaust gases with different carbon dioxide concentrations generated by different gas burners in most of the gas burners are turbulently fluidized by passing through the passage adjustment section, thereby mixing the different combustion of different carbon monoxide concentrations Krypton gas makes the concentration uniform. < Effect of the invention > Since the present invention has the above-mentioned structure, it has the following unique effects. Because the C0 sensor can detect the carbon dioxide concentration of one of the combustion exhaust gas in the exhaust gas storage tank in a static state, it will not blow to the C0 sensor as described in the flow of combustion exhaust gas, cooling it and changing the performance. By. Therefore, even if the combustion exhaust gas changes abruptly in the flow rate, the detection operation of the C0 sensor does not become unstable. X, because the C0 sensor 'is exposed to the combustion exhaust gas stream, the combustion exhaust gas containing a large amount of liquid particles generated in the early stage of the combustion of the gas burner is blown to the co sensor, and the aforementioned liquid particles will not adhere to these. There is no need to worry about the C0 sensor being corroded by the acidic components contained in the combustion exhaust. In item 2, it is possible to easily store the combustion exhaust gas from the time of generation to the time when no excess time has elapsed and store it in the exhaust storage oil. Therefore, by appropriately setting the size of the above-mentioned air leak hole], the stability of the detection action of the degree of aeration $ aeration is ensured, and the responsiveness of the detection action is appropriately set. In item 3, since a plurality of scattered vent holes are formed in the axial direction of the vent pipe, the detection accuracy of the carbon monoxide concentration of the combustion exhaust gas flowing in the laminar flow state as described above is improved. In item 4, because of the passage formed by adjusting the cross section of the exhaust passage 528841 A7 --- ~ ------ B7 V. Description of the invention (ό) " Duty ~~-Road withering department to promote The mixture of combustion and exhaust gases, so the detection accuracy of carbon monoxide concentration can be further improved by the C0 sensor. <Embodiment Mode of Invention> Next, the embodiment mode of the present invention will be described. Fig. 1 is a longitudinal sectional view of a water heater as an example of a gas combustion device according to the present invention, and Fig. 2 is a side view of the water heater taken along a line portion of Fig. 丨. The hot water supply includes a burner box portion 31, a heat exchanger 41, and an exhaust manifold 51. The burner box portion 31 is used to store the burner; the heat exchanger 41 is connected to the upper end of the burner box portion 31; the exhaust gas collecting cylinder 51 is further connected to the heat exchanger 41. . Each of them has a specific structure as follows. [For the burner box 31] An air supply port 32 is formed on the bottom wall of the rectangular box-shaped burner box 3 丨 opened at the top, and the air supply port 32 is connected to a discharge portion of the air supply fan 33. The space above the air supply port 32 is divided into upper and lower sides by a gas supply distribution plate 35 formed by a plurality of through holes 34 and M. In addition, a small burner 36 and a large burner 37 are arranged above the air supply distribution plate 35. When the water heater is under the action of a small moon, it only burns, and the small burner 36 is operated in a medium capacity state. Only the large burner 37 is burned. Further, when the high-capacity state is operated, the small burner 36 and the large burner 37 are burned simultaneously. [For Heat Exchanger 41] The heat exchanger 41 connected to the upper end of the burner box section 31 has a tank body 42 and a water passage pipe 43. The water passage pipe 43 passes through the upper side of the tank body 42 in a meandering state. A plurality of heat absorbing fans 44 and 44 are provided. This paper size applies to China National Standard (CNS) A4 (210X297 mm) (please read the precautions on the back before filling out this page), ^ τ— 4 Five Invention Descriptions (7) [for exhaust manifold 51] • The exhaust gas collecting cylinder 51 connected to the upper end of the heat exchanger 41 includes a casing 52, an exhaust guide plate 55, a cylinder 54, and a sensor box 61. X; "P 52 'is formed in a rectangular box shape with an open lower end; the exhaust guide plate 55 is arranged in the form of being divided into upper and lower parts; the cylinder μ is connected to the guide 52 and the ceiling Hole 53; The sensor box 61 is arranged below the upper page shed hole 53. The sensor box 61 houses a CO sensor described later for detecting a carbon oxide concentration of a side combustion exhaust gas. * Exhaust guide plate 55. The above-mentioned exhaust guide plate 55 has a curved drooping portion 57 formed on the outer periphery of the rectangular top plate 56 that divides the guide portion 52 up and down. Therefore, the curved drooping portion 57 is fixed to the peripheral side plate of the duct portion 52 by small screws 58, 58. Also, as shown in FIG. 3, a rectangular top plate 56 of the exhaust guide plate 55 is provided with an exhaust material ϋ59 as a passage regulating portion near the long end thereof, thereby securing the exhaust induction port 59. Larger distance from the installation part of the sensor box 61. * Sensor box 01 As shown in Figures 3 to 5, the sensor box 61 is formed by the exhaust storage box 62 that stores the sensor 60 and one end thereof. It is composed of a protruding air duct 〇, and is arranged in the exhaust storage tank 62 in a relatively large sensor. The configuration section of 60 also slaps the cover plate 64 on the side of the ventilation officer 63. Moreover, as shown in FIG. 5, the & degree of the cover plate 64 is set to be shorter than those of the exhaust storage box 62, With this, the arrangement portion of the CO sensor 60 and the side of the vent pipe 63 are communicated with each other through the gap portions 65 and 65 between the two side edges of the cover plate 64 and the two side walls 73 of the exhaust storage tank 62. The upper and lower space of the plate 64 is formed by the side of the air pipe 63 as it approaches the front end of the sensor 528841. V. Description of the invention (8) The front end of the sensor 60 becomes larger and is bent into a < -shaped cross section. The center of the apex of 64 extends to the inner surface of the inclined plate 64 above the inclined upper surface. Even if drainage is generated and adhered, the drainage 66 can prevent the drainage 66 from dripping onto the CO sensor 60 because it flows below the inclined surface through the upper inclined plate Mo. Disadvantages. Also, in the exhaust gas storage tank 62, a leak hole 71 is opened in the wall portion 70 before the vent tube 63 side. On the one hand, the vent tube 63 faces Exhaust-inducing ports 59 spit out fl holes 67, 67 'on the side wall of the flow side of the combustion exhaust gas described later. On the other hand, vent holes 67 and 67 are also formed in the bottom wall of the vent pipe 63. Further, these vent holes 67 and 67 are arranged in the axial direction of the vent pipe 63 at a fixed pitch with an interval therebetween. Thus, combustion Even if the exhaust gas flows in a laminar flow state, the combustion exhaust gas flowing in different parts of the thickness direction of the layer can enter the ventilation pipe through most of the vent holes 67 and 67. ① As shown in FIG. 4 'because of the C〇 sensor 6 〇The gas detection element housed in the protective cover 68 and the electronic component group 69 formed by the resistance element are formed through the windows 49 and 49 formed in the protective cover 68 to connect the arrangement portion and the row of the electronic component group 69 described above. Inside the gas storage box 62. [Experiment of operation] Next, the operation of the water heater will be described in actuality. After the hot water supply operation is started in the small capacity state, an ignition device (not shown) causes only the small burner 36 to start operating. On the one hand, the worker lice from the air supply fan 33 0/1 ^ are diffused out through the holes 34, through the holes 34, and are spread out by the whole spoon of the air supply distribution plate 35. (_ Α ▲ ⑵0 × 297 公 嫠 7
訂— (請先閲讀背面之注意事項再填寫本頁) 4: 11 528841 A7 ___B7_ 五、發明説明（9 ) 氣作為燃燒用空氣被供給至小燃燒器36。又，來自供氣分 布板35之喷出空氣，通過熄火狀態之大燃燒器37之周圍被 供給至下游側。從而，在小燃燒器36生成之燃燒排氣與通 過大燃燒器37部分之空氣不會相互混合，以層流狀態流過 熱交換器41部分，在排氣導引板55之排氣誘導口 59部分合 流。因此，前述空氣與燃燒排氣之流速，在通過開口面積 較小之排氣誘導口 59時急遽增加，在其下游側之導管部52 内再度減速。而且，藉該速度變化燃燒排氣與前述空氣混 合，生成濃度降低之燃燒排氣，該燃燒排氣到達傳感器箱 61之配設部。 到達上述傳感器箱61部分之燃燒排氣，由位置於其上 方之排氣用之筒體54排出於外部，一方面，該燃燒排氣由 形成於通氣管63之通氣孔67、67擴散至該通氣管63内，同 時該燃燒排氣之擴散更擴大至排氣貯留箱62内。藉此，在 排氣貯留箱62内，燃燒排氣滯留成約略靜止狀態，CO傳感 器60檢測該空氣環境下之一氧化碳之濃度。藉此，燃燒排 氣之流動不會吹至CO傳感器60，該CO傳感器60被冷卻形 成檢測動作不會變成不安、定。 從而，小燃燒器36隨著大燃燒器37的燃燒量變化，變 化供氣風扇33之旋轉數，藉此，即使流動於排氣通路内之 燃燒排氣之流速變化，設置於排氣貯留箱62内之CO傳感器 60在前述燃燒排氣之流動不會被空冷。藉此，構成CO傳感 器60之電子元件群69之電阻值變化，檢測動作而能迴避不 安定之情況。又，由於CO傳感器60位置於傳感器箱61内之 12 (請先閲讀背面之注意事項再填寫本頁) 本紙張尺度適用中國國家標準（CNS) A4規格（210X297公釐） 528841 五、發明説明（ίο 靜止燃燒排氣中，所以前述C0傳感器60不會曝曬於與已述 者不同之燃燒排氣流中。藉此，在燃燒初期之大小燃 ' 6所生成之包含多罝液體粒子之燃燒排氣吹至c〇 傳感器60,前述液體粒子不會附著於此等，藉包含於靜 燒排氣之酸性成分，抑制⑶傳感請的腐普虫。 *而且’以CO傳感器60檢測之前述燃燒排氣之一氧化石炭 濃度，若超過預定之基準值時，由未圖示該狀態之控制裝 置判斷’並遮斷朝小燃燒器36與大燃燒器37之瓦斯的供 給，同時使供氣風扇停止，藉此確保安全狀態。 <圖面的簡單說明> 第1圖係本發明實施型態之熱水器之縱戴面圖。 第2圖為切斷第i圖之IK[I線部分之熱水器之侧面圖。 第3圖為表示排氣導引板（55)與傳感器箱（61)之配置關 係之透視圖。 Ρ 第4圖為傳感器箱（61)之縱截面圖。 第5圖為切斷第4圖之v_V線部分之截面圖。 第6圖為習知例之說明圖。 弟7圖為習知例之說明圖。 元件標號對照 36…第1瓦斯燃燒器 37…第2瓦斯燃燒器 60…CO傳感器 (請先閲讀背面之注意事項再填寫本頁) 62···排氣貯留箱 63…通氣管 71…漏氣孔 本紙張尺度適用中國國家標準（CNS) Α4規格（210X297公釐）Order — (Please read the notes on the back before filling out this page) 4: 11 528841 A7 ___B7_ V. Description of the invention (9) The gas is supplied to the small burner 36 as combustion air. Also, the ejected air from the air supply distribution plate 35 is supplied to the downstream side through the periphery of the large burner 37 in the flameout state. Therefore, the combustion exhaust gas generated in the small burner 36 and the air passing through the large burner 37 portion will not mix with each other, and flow through the heat exchanger 41 portion in a laminar flow state at the exhaust induction port 59 of the exhaust guide plate 55 Partial confluence. Therefore, the flow velocity of the air and the combustion exhaust gas increases sharply when passing through the exhaust induction port 59 having a small opening area, and decelerates again in the duct portion 52 on the downstream side thereof. Then, the combustion exhaust gas is mixed with the aforementioned air by this speed change to generate combustion exhaust gas having a reduced concentration, and the combustion exhaust gas reaches the arrangement section of the sensor box 61. The combustion exhaust gas that has reached the above-mentioned sensor box 61 is discharged to the outside by the exhaust cylinder 54 positioned above it. On the one hand, the combustion exhaust gas is diffused to the ventilation holes 67, 67 formed in the ventilation pipe 63. At the same time, the diffusion of the combustion exhaust gas is extended into the exhaust pipe 63 into the exhaust gas storage tank 62. Thereby, the combustion exhaust gas stays in a substantially stationary state in the exhaust gas storage tank 62, and the CO sensor 60 detects the concentration of carbon monoxide in the air environment. Thereby, the flow of the combustion exhaust gas is not blown to the CO sensor 60, and the CO sensor 60 is cooled so that the detection operation does not become unsteady and unstable. Therefore, the small burner 36 changes the number of rotations of the air supply fan 33 as the combustion amount of the large burner 37 changes, whereby even if the flow rate of the combustion exhaust gas flowing in the exhaust passage changes, it is installed in the exhaust storage tank. The CO sensor 60 in 62 is not air-cooled in the flow of the combustion exhaust gas. Thereby, the resistance value of the electronic component group 69 constituting the CO sensor 60 is changed, and an unstable situation can be avoided by detecting the operation. In addition, because the CO sensor 60 is located in 12 of the sensor box 61 (please read the precautions on the back before filling this page) This paper size is applicable to the Chinese National Standard (CNS) A4 specification (210X297 mm) 528841 5. Description of the invention ( ίο The stationary combustion exhaust gas, so the aforementioned C0 sensor 60 will not be exposed to a combustion exhaust gas stream different from the one already described. As a result, the combustion exhaust gas containing multiple particles of liquid particles generated in the initial combustion stage of the combustion process' 6 The air is blown to the CO sensor 60, the aforementioned liquid particles will not adhere to them, and the acidic component contained in the static burning exhaust gas, suppresses the rotten worm that is detected by CD. * Furthermore, the aforementioned combustion detected by the CO sensor 60 When the concentration of the oxidized carbon of the exhaust gas exceeds a predetermined reference value, it is judged by a control device (not shown) in this state, and the gas supply to the small burner 36 and the large burner 37 is blocked, and the air supply fan Stop to ensure a safe state. ≪ Simplified description of the drawing > Figure 1 is a longitudinal view of a water heater according to an embodiment of the present invention. Figure 2 is a cut of the IK [I line part of the figure i] Side view of water heater. Fig. 3 is a perspective view showing the arrangement relationship between the exhaust guide plate (55) and the sensor box (61). P Fig. 4 is a longitudinal sectional view of the sensor box (61). Sectional view of the v_V line. Figure 6 is an explanatory diagram of the conventional example. Figure 7 is an explanatory diagram of the conventional example. The reference numbers of the components are 36 ... the first gas burner 37 ... the second gas burner 60 ... the CO sensor (Please read the precautions on the back before filling in this page) 62 .. · Exhaust storage tank 63 ... Ventilation tube 71 ... Leak hole This paper size applies the Chinese National Standard (CNS) Α4 specification (210X297 mm)