.Ϊ306933 九、發明說明： 【發明所屬之技術領域】 種可有 本發明是有關於一種熱水器，特別是有 政降低氮氧化物生成之熱水器。 ； 【先前技術】 …口那T W工心瓦所熟水器之中，其—eΪ 306933 IX. Description of the invention: [Technical field to which the invention pertains] The present invention relates to a water heater, and more particularly to a water heater for reducing the formation of nitrogen oxides. [Previous technology] ... mouth of the T W Gongxin tile in the water, its - e
匕:炭㈣之排放雖能符合國家標準的規定⑽0啊二 保2責魏化物(陶之排放則良以齊。由於現今環 (NO:二故先進國家對於民生用熱水器之氮氧化物 X)排放1也開始加以重視，並制訂相關規範。然 商對於民生用熱水ϋ之氮氧化物(Ncg排放減量 ，仍無法突破克服，其主要原因為隨著瓦斯消耗量的辦 加’燃燒後所生成的氮氧化物(Ν0χ)量也隨之大幅增加。^ ，有效降低氮氧化物(Ν0χ)之生成，以符合世界 保標準或瓦斯熱水器之安全規範，則台灣的產品將益法ς 入國際市場。 、 π參閱第1圖及第2圖，一種習知之熱水器J主要包 括有—熱交換器11、一第一輸水管12、一第二輪水管13= —燃燒室14、複數個燃燒器15、一鼓風機16、—主燃料 供應管17以及複數個燃料輸送管18。 第輛水管12及第二輸水管13是分別連接於熱交換 為11之兩側，冷水是經由第一輪水管12輸送至熱交換器 11之中，而熱水是經由第二輸水管13從熱交換器i輪 至熱水Hi之外。 廷 0956-A21876TW(N2)；P55950046TW；hawdong 6 1306933 燃燒室14是位於熱交換器11之下方，而複數個燃燒 器15是設置於燃燒室14之中，其可用來對熱交換器11 中之水進行加熱。 鼓風機16是連接於燃燒室14之下方，其可用來將外 界空氣輸送至燃燒室14之中。 主燃料供應管17可連接於一燃料供應源(未顯示），而 每一個燃料輸送管18皆是連接於主燃料供應管17與每一 個燃燒器15之間。 此外，如第2圖所示，每一個燃燒器15皆具有複數個 B焰孔15a及一燃料輸入口 15b，焰孔15a是連通於燃料輸 入口 15b。每一個燃料輸送管18皆具有一喷嘴18a，而每 一個喷嘴18a是對應於每一個燃料輸入口 15b。 當熱水器1運作時，燃料（例如，液化石油氣或天然氣） 可依序經由主燃料供應管17及複數個燃料輸送管18輸送 至複數個燃燒器15之中。在此，燃料輸送管18中之燃料 是經由其噴嘴18a喷向燃燒器15之燃料輸入口 15b，同時， 0藉由喷嘴18a喷射燃料時所產生之動能，部份外界空氣（或 燃料輸送管18外之空氣）亦會隨著燃料進入至燃燒器15之 中，以達成燃料預混之效果。預混後之燃料會經由焰孔15a 輸出燃燒，以對熱交換器11中之水進行加熱。此外，由於 燃料預混時之空氣量較少，故燃燒時所需之額外空氣可經 由鼓風機16由燃燒器15下方往上供應而獲得。 如上所述，由於從燃燒器15之焰孔15a輸出燃燒之燃 料是處於燃料過剩之狀態（亦即，燃氣當量比是大於1)，以 0956-A21876TW(N2)；P55950046TW：hawdong 7 1306933 及燃料在預混時之燃料對空氣之比例是固定的，故燃燒室 14内之燃燒溫度會很高。當熱水器1之燃燒負載增加時， 燃燒室14内之溫度會更為升高，而此會促進溫度型氮氧化 物（thermal NOx)之生成，進而使得熱水器1之氮氧化物 (NOx)的排放量大幅增加。 為了解決上述氮氧化物（NOx)之排放量大幅增加的問 題，另有一種習知之熱水器是採用濃淡燃燒之控制方法。 如第3圖所示，另一種習知之熱水器内包括有複數個 主燃料供應管20、複數個總燃料控制閥30、複數個濃燃料 B輸送管40、複數個淡燃料輸送管50以及複數個燃燒器60。 每一個總燃料控制閥30是連接於每一個主燃料供應 管20。每一個濃燃料輸送管40及每一個淡燃料輸送管50 是連接於每一個總燃料控制閥30與每一個燃燒器60之 間，並且每一個濃燃料輸送管40及每一個淡燃料輸送管 50分別具有一濃燃料喷嘴41及一淡燃料喷嘴51。更詳細 的來說，每一個燃燒器60具有一濃燃料輸入口 61、一淡 φ燃料輸入口 62、複數個濃焰孔63及複數個淡焰孔64，濃 焰孔63及淡焰孔64是分別連通於濃燃料輸入口 61及淡燃 料輸入口 62，而每一個濃燃料輸送管40之濃燃料喷嘴41 及每一個淡燃料輸送管50之淡燃料喷嘴51是分別對應於 每一個濃燃料輸入口 61及每一個淡燃料輸入口 62。 如上所述，當熱水器運作時，經由主燃料供應管20所 輸送之燃料（例如，液化石油氣或天然氣）會由總燃料控制 閥30控制分配流入濃燃料輸送管40及淡燃料輸送管50 0956-A21876TW(N2)：P55950046TW；hawdong 8 1306933 中之燃料量，亦即，流入濃燃料輸送管40中之燃料量會大 於流入淡燃料輸送管50中之燃料量。濃燃料輸送管40中 之燃料會經由其濃燃料喷嘴41喷向燃燒器60之濃燃料輸 入口 61，而淡燃料輸送管50中之燃料會經由其淡燃料喷 嘴51喷向燃燒器60之淡燃料輸入口 62。同時，藉由濃燃 料噴嘴41及淡燃料喷嘴51喷射燃料時所產生之動能，部 份外界空氣（或濃燃料輸送管40及淡燃料輸送管50外之空 氣）亦會隨者燃料經由濃燃料輸入口 61及淡燃料輸入口 6 2 進入至燃燒器60之中，以達成燃料預混之效果。在此，經 ® 由濃燃料輸入口 61進入至燃燒器60中之預混燃料是處於 燃料過剩之狀態（亦即，燃氣當量比是大於1)，而經由淡燃 料輸入口 62進入至燃燒器60中之預混燃料是處於空氣過 剩之狀態（亦即，燃氣當量比是小於1)。經由濃燃料輸入口 61及淡燃料輸入口預混後之燃料會分別經由濃焰孔63及 淡焰孔64輸出至燃燒器60上方燃燒，以對一熱交換器（未 顯示）中之水進行加熱。如上所述，由於經由淡燃料輸入口 _預混後之燃料在從淡焰孔64輸出至燃燒器60上方燃燒時 之溫度較低，故可降低整體燃燒場之溫度，因而使得溫度 分佈較為均勻，進而可降低局部高溫之產生。因此，溫度 型氮氧化物(thermal NOx)即不易生成。此外，燃燒器60燃 燒時所需之額外空氣可經由一鼓風機（未顯示）由燃燒器6 0 下方往上供應而獲得。 然而，上述之習知熱水器的内部構造太過於複雜，因 而會增加其製造成本。 0956-A21876TW(N2)：P55950046TW；hawdong 9 1306933 有鑑於此，本發明之目的是要提供一種構造簡化之熱 水器，其可利用濃淡燃燒之方式達成降低氮氧化物生成之 功效。 【發明内容】 本發明基本上採用如下所詳述之特徵以為了要解決上 述之問題。也就是說，本發明包括一熱交換器；一燃燒室， 設置於該熱交換器之下；至少一燃燒器，設置於該燃燒室 之中，並且具有一第一隔間、一第二隔間、一燃料輸入口、 複數個第一焰孔及複數個第二焰孔，其中，該第一隔間係 鄰接於該第二隔間，該第一隔間之截面積係大於該第二隔 間之截面積，該燃料輸入口係連接於該第一隔間及該第二 隔間，該等第一焰孔係成形於該第一隔間之上，並且係連 通於該燃料輸入口，該等第二焰孔係成形於該第二隔間之 上，並且係連通於該燃料輸入口，以及該等第一焰孔係平 行於該等第二焰孔；以及至少一燃料輸送管，連接於該燃 燒器，並且具有一喷嘴，其中，該喷嘴係對應於該燃燒器 •之該燃料輸入口，用以將一燃料喷射輸入該燃燒器之中。 同時，根據本發明之熱水器，該第一隔間之截面積對 於該第二隔間之截面積之比值係介於1.5與3之間。 又在本發明中，該等第一焰孔與該等第二焰孔係以交 錯之方式平行於彼此。 又在本發明中，該熱水器更包括一主燃料供應管及一 鼓風機，該主燃料供應管係連接於該燃料輸送管與一燃料 供應源之間，以及該鼓風機係連接於該燃燒室之下方，用 0956-A21876TW(N2)；P55950046TW；hawdong 10 ^06933 以乳輪送至該燃燒室之中。 為使本發明之上述 下文特舉較户奋,的、4寸徵和優點能更明顯易懂， 【實施方^】^亚配合所附圖式做詳細說明。 :配合圖式說明本發明之較佳實施例。 器圖、第5A圖及第5B圖，本實施例之熱水 第二於j 有一熱交換器11G、一第—輸水管120、-匕: Although the emission of charcoal (4) can meet the requirements of national standards (10) 0 ah 2 insurance 2 responsibilities Wei compound (Tao's emissions are good. Because of the current ring (NO: the second advanced countries for the nitrogen oxide X of the water heater for the people's livelihood) emissions 1 Also began to pay attention to it, and formulate relevant norms. However, for the use of hot water in the people's livelihood, the nitrogen oxides (Ncg emission reduction, still can not be overcome to overcome, the main reason is that with the consumption of gas consumption, it will be generated after combustion The amount of nitrogen oxides (Ν0χ) has also increased significantly. ^, effectively reducing the formation of nitrogen oxides (Ν0χ) to meet the world safety standards or gas water heater safety regulations, Taiwan's products will benefit the law into the international market Referring to Figures 1 and 2, a conventional water heater J mainly includes a heat exchanger 11, a first water pipe 12, a second water pipe 13 = a combustion chamber 14, and a plurality of burners 15. a blower 16, a main fuel supply pipe 17, and a plurality of fuel delivery pipes 18. The first water pipe 12 and the second water pipe 13 are respectively connected to the sides of the heat exchange 11 and the cold water is conveyed through the first water pipe 12 To heat exchanger 11 Wherein, the hot water is from the heat exchanger i to the hot water Hi via the second water pipe 13. Ting 0956-A21876TW (N2); P55950046TW; hawdong 6 1306933 The combustion chamber 14 is located below the heat exchanger 11, A plurality of burners 15 are disposed in the combustion chamber 14, which can be used to heat the water in the heat exchanger 11. The blower 16 is connected below the combustion chamber 14 and can be used to deliver outside air to the combustion chamber. The main fuel supply pipe 17 is connectable to a fuel supply source (not shown), and each of the fuel delivery pipes 18 is connected between the main fuel supply pipe 17 and each of the burners 15. Further, 2, each of the burners 15 has a plurality of B flame holes 15a and a fuel input port 15b, and the flame holes 15a are connected to the fuel input port 15b. Each of the fuel delivery pipes 18 has a nozzle 18a, and each A nozzle 18a corresponds to each of the fuel input ports 15b. When the water heater 1 is in operation, fuel (for example, liquefied petroleum gas or natural gas) may be sequentially delivered to the plurality of combustions via the main fuel supply pipe 17 and the plurality of fuel delivery pipes 18. 15 Here, the fuel in the fuel delivery pipe 18 is sprayed through the nozzle 18a to the fuel input port 15b of the burner 15, while at the same time, the kinetic energy generated by the injection of the fuel by the nozzle 18a, part of the outside air (or fuel) The air outside the duct 18 will also enter the burner 15 with the fuel to achieve the effect of fuel premixing. The premixed fuel will be combusted via the flame hole 15a to the water in the heat exchanger 11. Heating is also performed. Further, since the amount of air during fuel premixing is small, additional air required for combustion can be obtained by blowing up from the lower side of the burner 15 via the blower 16. As described above, since the fuel outputted from the flame hole 15a of the burner 15 is in a state of excessive fuel (i.e., the gas equivalent ratio is greater than 1), it is 0956-A21876TW (N2); P55950046TW: hawdong 7 1306933 and The fuel to air ratio of the fuel during premixing is fixed, so the combustion temperature within the combustion chamber 14 can be high. When the combustion load of the water heater 1 increases, the temperature in the combustion chamber 14 increases, which promotes the generation of temperature-type nitrogen oxides (NOx), which in turn causes the discharge of nitrogen oxides (NOx) in the water heater 1. The amount has increased significantly. In order to solve the problem that the above-mentioned emission of nitrogen oxides (NOx) is greatly increased, another conventional water heater is a control method using rich and light combustion. As shown in FIG. 3, another conventional water heater includes a plurality of main fuel supply pipes 20, a plurality of total fuel control valves 30, a plurality of rich fuel B delivery pipes 40, a plurality of fresh fuel delivery pipes 50, and a plurality of Burner 60. Each of the total fuel control valves 30 is connected to each of the main fuel supply pipes 20. Each of the rich fuel delivery tubes 40 and each of the fresh fuel delivery tubes 50 is connected between each of the total fuel control valves 30 and each of the burners 60, and each of the rich fuel delivery tubes 40 and each of the fresh fuel delivery tubes 50 There is a concentrated fuel nozzle 41 and a light fuel nozzle 51, respectively. In more detail, each burner 60 has a rich fuel input port 61, a light φ fuel input port 62, a plurality of thick flame holes 63 and a plurality of light flame holes 64, a thick flame hole 63 and a light flame hole 64. Is connected to the rich fuel input port 61 and the light fuel input port 62, respectively, and the rich fuel nozzles 41 of each of the rich fuel delivery pipes 40 and the light fuel nozzles 51 of each of the fresh fuel delivery pipes 50 correspond to each of the rich fuels respectively. The input port 61 and each of the light fuel input ports 62. As described above, when the water heater is operated, the fuel (for example, liquefied petroleum gas or natural gas) delivered via the main fuel supply pipe 20 is controlled by the total fuel control valve 30 to be distributed into the rich fuel delivery pipe 40 and the light fuel delivery pipe 50 0956. -A21876TW(N2): P55950046TW; the amount of fuel in the hawdong 8 1306933, that is, the amount of fuel flowing into the rich fuel delivery pipe 40 will be greater than the amount of fuel flowing into the fresh fuel delivery pipe 50. The fuel in the rich fuel delivery pipe 40 is sprayed through its rich fuel nozzle 41 to the rich fuel input port 61 of the burner 60, and the fuel in the fresh fuel delivery pipe 50 is sprayed toward the burner 60 via its fresh fuel nozzle 51. Fuel input port 62. At the same time, by the kinetic energy generated when the fuel is injected by the rich fuel nozzle 41 and the fresh fuel nozzle 51, part of the outside air (or the air outside the rich fuel delivery pipe 40 and the fresh fuel delivery pipe 50) will also follow the fuel through the rich fuel. The input port 61 and the light fuel input port 62 are entered into the burner 60 to achieve the effect of fuel premixing. Here, the premixed fuel that enters into the combustor 60 via the rich fuel input port 61 is in a state of excess fuel (that is, the gas equivalent ratio is greater than 1), and enters into the combustion via the fresh fuel input port 62. The premixed fuel in the unit 60 is in a state of excess air (i.e., the gas equivalent ratio is less than 1). The fuel premixed through the rich fuel input port 61 and the light fuel input port is respectively outputted through the rich flame hole 63 and the light flame hole 64 to be combusted above the burner 60 to perform water in a heat exchanger (not shown). heating. As described above, since the temperature of the fuel after being pre-mixed through the light fuel input port is lower from the output from the light flame hole 64 to the burner 60, the temperature of the entire combustion field can be lowered, thereby making the temperature distribution uniform. In turn, the local high temperature can be reduced. Therefore, thermal NOx is not easily formed. In addition, the additional air required for burner 60 to be combusted can be obtained by supplying a blower (not shown) from below the burner 60. However, the above-mentioned conventional internal structure of the water heater is too complicated, which increases its manufacturing cost. 0956-A21876TW(N2): P55950046TW; hawdong 9 1306933 In view of the above, it is an object of the present invention to provide a water heater with a simplified construction which can achieve the effect of reducing the formation of nitrogen oxides by means of rich and light combustion. SUMMARY OF THE INVENTION The present invention basically employs the features detailed below in order to solve the above problems. That is, the present invention includes a heat exchanger; a combustion chamber disposed under the heat exchanger; at least one burner disposed in the combustion chamber and having a first compartment and a second compartment a first fuel inlet, a plurality of first flame holes, and a plurality of second flame holes, wherein the first compartment is adjacent to the second compartment, and the cross-sectional area of the first compartment is greater than the second a cross-sectional area of the compartment, the fuel input port being connected to the first compartment and the second compartment, the first flame holes being formed on the first compartment and connected to the fuel inlet The second flame holes are formed on the second compartment and are connected to the fuel input port, and the first flame holes are parallel to the second flame holes; and at least one fuel delivery pipe Connected to the burner and having a nozzle, wherein the nozzle corresponds to the fuel inlet of the burner for injecting a fuel into the burner. Meanwhile, according to the water heater of the present invention, the ratio of the sectional area of the first compartment to the sectional area of the second compartment is between 1.5 and 3. In still another aspect of the invention, the first flame holes and the second flame holes are parallel to each other in an interleaved manner. In the present invention, the water heater further includes a main fuel supply pipe and a blower, the main fuel supply pipe is connected between the fuel delivery pipe and a fuel supply source, and the blower is connected below the combustion chamber. It is sent to the combustion chamber with a milk wheel using 0956-A21876TW (N2); P55950046TW; hawdong 10 ^06933. In order to make the above-mentioned special features of the present invention more versatile, the 4 inch sign and the advantages can be more clearly understood, and the implementation method will be described in detail with reference to the drawings. The preferred embodiment of the invention is illustrated in conjunction with the drawings. Figure 5, Figure 5A and Figure 5B, the hot water of this embodiment has a heat exchanger 11G, a first water pipe 120, -
說明=見”3G、—燃ί室140、複數個燃燒器15G(為便於 個燃料於、=5A圖及第5β圖僅顯示一燃燒器150)、複數 θ| ::达官16〇(為便於說明起見，第5Α圖及第5Β圖僅 燃料輸送管⑽）、—主燃料供應管胸及一鼓風 第一輸水管uo及第二輸水管13〇是分別連接於敛交 換:110之兩侧，冷水是經由第—輸水管12〇輸送至熱交 換裔110之中’而敎水吾歸由黛_於 …&疋、，工甶罘—輸水管130從熱交換器 U0輸送至熱水器1〇〇之外。 燃燒室140是設置於熱交換器η〇之下，而複數修 燒器15〇是設置於燃燒室140之中，其可用來對熱交換器 110中之水進行加熱。更詳細的來說，如第5Α圖及第5Β 圖所示，每一個燃燒器15〇具有—第—隔間151、一第二 隔間152、一燃料輸入口 153、複數個第—焰孔154及複& 個第二焰孔155。第一隔間151是鄰接於第二隔間152，並 且第一隔間151之截面積是大於第二隔間152之截面積。 特別的是，第一隔間151之截面積對於第二隔間152之截 0956-Α21876TW(N2) ;P55950046TW;hawdong Π 1306933 面積之比值可以是介於1.5與3之間，而較佳的比值是2。 燃料輸入口 153是同時連接於第一隔間151及第二隔間 152。複數個第一焰孔154是成形於第一隔間151之上，並 且複數個第一焰孔154皆是連通於燃料輸入口 153。複數 個第二焰孔155是成形於第二隔間152之上，並且複數個 第二焰孔155亦皆是連通於燃料輸入口 153。在第5A圖及 第5B圖之中，複數個第一焰孔154乃是平行且對應於複 數個第二焰孔155。 每一個燃料輸送管160是連接於每一個燃燒器150。 更詳細的來說，每一個燃料輸送管160具有一喷嘴161， 而喷嘴161是對應於每一個燃燒器150之燃料輸入口 153。 主燃料供應管170是連接於複數個燃料輸送管160與 一燃料供應源（未顯示）之間。 鼓風機180是連接於燃燒室140之下方，其可用來將 外界空氣輸送至燃燒室140之中。 當熱水器100運作時，經由主燃料供應管170所輸送 $之燃料（例如，液化石油氣或天然氣）會經由每一個燃料輸 送管160輸送至每一個燃燒器150之燃料輸入口 153處， 而每一個燃料輸送管160會藉由其喷嘴161將燃料經由燃 料輸入口 153喷射輸入每一個燃燒器150之中。在此，由 於第一隔間151之截面積是大於第二隔間152之截面積， 故輸入至第一隔間151中之燃料量會大於輸入至第二隔間 152中之燃料量。舉例來說，當第一隔間151之截面積對 於第二隔間152之截面積的比值為2時，輸入至第一隔間 0956-A21876TW(N2)；P55950046TW；hawdong 12 1306933 151中之燃料量即為輸入至第二隔間152中之燃料量的兩 倍。 同時，藉由喷嘴161喷射燃料時所產生之動能，部份 外界空氣（或燃料輸送管160外之空氣）亦會隨著燃料經由 燃料輸入口 153進入至燃燒器150之第一隔間151及第二 隔間152之中，以達成燃料預混之效果。在此，進入至第 一隔間151中之預混燃料是處於燃料過剩之狀態（亦即，燃 氣當量比是大於1)，而進入至第二隔間152中之預混燃料 I 是處於空氣過剩之狀態（亦即，燃氣當量比是小於1)。 在第一隔間151及第二隔間152中之預混燃料會分別 經由第一焰孔154及第二焰孔155輸出至燃燒器150之上 方燃燒，以對一熱交換器Π 〇中之水進行加熱。 此外，燃燒器150燃燒時所需之額外空氣可經由鼓風 機180由燃燒器150下方往上供應而獲得。 如上所述，雖然第一隔間151中之預混燃料（處於燃料 過剩之狀態）在經由第一焰孔154輸出至燃燒器150上方燃 •燒時之溫度會較高，但第二隔間152中之預混燃料（處於空 氣過剩之狀態）在經由第二焰孔155輸出至燃燒器150上方 燃燒時之溫度會較低，故燃燒場之整體溫度可以降低，並 可使得溫度分佈較為均勻，進而可降低局部高溫之產生。 因此，溫度型氮氧化物(thermal NOx)即不易生成。 此外，燃燒器150上之複數個第一焰孔154及複數個 第二焰孔155之排列設置方式並不侷限於如第5A圖及第 5B圖所示之形式。換句話說，如第6A圖及第6B圖所示， 0956-A21876TW(N2)；P55950046TW：hawdong 13 .1306933 燃燒器150’上之複數個第一焰孔154與複數個第二焰孔 15 5亦可以父錯之方式平行於彼此。在此種情形下，燃燒 器150’上方之燃燒穩焰效果會較佳，以及燃燒場之溫度分 饰會更為均勻，因而使得溫度型氣氧化物(thermal NOx)更 不易生成。 另外，在本發明之中，為了達到輸入至第一隔間151 中之燃料量會大於輸入至第二隔間152中之燃料量的效 果，除了使第一隔間151之截面積大於第二隔間152之截 _面積的設計方式外，亦可以採用使燃料輸入口 153位於第 —隔間151上之面積大於燃料輸入口 153位於第二隔間 152上之面積的設計方式。更詳細的來說，燃料輸入口 1 μ 位於第一隔間151上之面積對於燃料輸入口丨53位於第二 隔間152上之面積之比值可以是介於15與3之間，而較 佳的比值是2。同樣地，當燃料輸入口 153位於第一隔間 上之面積對於燃料輸入口 153位於第二隔間ι52上之 面積的比值為2時，輸入至第一隔間151中之燃料量即為 _輸入至第二隔間152中之燃料量的兩倍。 ’ 綜上所述，本發明所揭露之熱水器具有簡化之構造， 並且可利用濃淡燃燒之方式來達成降低氮氧化物生成^功 夕文。也就疋§兒，本發明所揭露之熱水器可省略習知兩# 鬲探用 多個總燃料控制閥之結構，並且每一個燃燒器僅需於配^ 用一個燃料輸送管及一個噴嘴就能達成濃淡燃燒之效果^ 因而可大幅降低整個熱水器之製造成本。 雖然本發明已以較佳實施例揭露於上，然其教非用以 0956-A21876TW(N2)；P55950046TW；hawdong 14 1306933 限定本發明，任何熟習此項技藝者，在不脫離本發明之精 神和範圍内，當可作些許之更動與潤飾，因此本發明之保 護範圍當視後附之申請專利範圍所界定者為準。Description = see "3G, - combustion chamber 140, a plurality of burners 15G (for the convenience of fuel, = 5A and 5β map only shows a burner 150), complex θ | :: Daguan 16 〇 (for convenience For the sake of explanation, the fuel delivery pipe (10), the fuel supply pipe (10), the main fuel supply pipe and the first ventilating water pipe uo and the second water pipe 13 〇 are respectively connected to the exchange exchange: 110 On the side, the cold water is transported to the heat exchange source 110 via the first water pipe 12〇, and the water is transferred from the heat exchanger U0 to the water heater by the 敎_于...& The combustion chamber 140 is disposed below the heat exchanger η〇, and the plurality of sinters 15 〇 are disposed in the combustion chamber 140, which can be used to heat the water in the heat exchanger 110. More specifically, as shown in FIG. 5 and FIG. 5, each burner 15 has a first compartment 151, a second compartment 152, a fuel input port 153, and a plurality of first flame holes. 154 and complex & second flame holes 155. The first compartment 151 is adjacent to the second compartment 152, and the cross-sectional area of the first compartment 151 is greater than The cross-sectional area of the compartment 152. In particular, the cross-sectional area of the first compartment 151 may be between 1.56 and Α21876 TW (N2); P55950046 TW; hawdong Π 1306933 area of the second compartment 152 may be between 1.5 and 3 The preferred ratio is 2. The fuel inlet 153 is simultaneously connected to the first compartment 151 and the second compartment 152. The plurality of first flame holes 154 are formed on the first compartment 151, and plural The first flame holes 154 are all connected to the fuel input port 153. The plurality of second flame holes 155 are formed on the second compartment 152, and the plurality of second flame holes 155 are also connected to the fuel input port 153. In Figures 5A and 5B, the plurality of first flame holes 154 are parallel and correspond to a plurality of second flame holes 155. Each of the fuel delivery pipes 160 is connected to each of the burners 150. Each of the fuel delivery pipes 160 has a nozzle 161, and the nozzle 161 is a fuel input port 153 corresponding to each of the burners 150. The main fuel supply pipe 170 is connected to a plurality of fuel delivery pipes 160 and a fuel supply. Between the sources (not shown). The blower 180 is connected to Below the firing chamber 140, it can be used to deliver outside air into the combustion chamber 140. When the water heater 100 is in operation, the fuel (e.g., liquefied petroleum gas or natural gas) delivered via the main fuel supply pipe 170 will pass through each The fuel delivery tube 160 is delivered to the fuel input port 153 of each of the burners 150, and each of the fuel delivery tubes 160 injects fuel into each of the burners 150 via the fuel inlet 153 via its nozzle 161. Here, since the sectional area of the first compartment 151 is larger than the sectional area of the second compartment 152, the amount of fuel input into the first compartment 151 is greater than the amount of fuel input to the second compartment 152. For example, when the ratio of the cross-sectional area of the first compartment 151 to the cross-sectional area of the second compartment 152 is 2, the fuel is input to the first compartment 0956-A21876TW (N2); P55950046TW; hawdong 12 1306933 151 The amount is twice the amount of fuel input into the second compartment 152. At the same time, by the kinetic energy generated when the fuel is injected by the nozzle 161, part of the outside air (or the air outside the fuel delivery pipe 160) also enters the first compartment 151 of the burner 150 via the fuel input port 153. Among the second compartments 152, the effect of fuel premixing is achieved. Here, the premixed fuel entering the first compartment 151 is in a state of excess fuel (that is, the gas equivalent ratio is greater than 1), and the premixed fuel I entering the second compartment 152 is at The state of excess air (that is, the gas equivalent ratio is less than 1). The premixed fuel in the first compartment 151 and the second compartment 152 is respectively outputted to the upper portion of the burner 150 via the first flame hole 154 and the second flame hole 155 for combustion in a heat exchanger. The water is heated. In addition, additional air required for combustion of the combustor 150 can be obtained via the blower 180 supplied from below the burner 150. As described above, although the temperature of the premixed fuel (in the state of excess fuel) in the first compartment 151 is higher when it is output to the burner 150 via the first flame hole 154, the second compartment is higher. The premixed fuel in 152 (in a state of excess air) is lower in temperature when it is outputted through the second flame hole 155 to the burner 150, so that the overall temperature of the combustion field can be lowered, and the temperature distribution can be made uniform. In turn, the local high temperature can be reduced. Therefore, thermal NOx is not easily formed. Further, the arrangement of the plurality of first flame holes 154 and the plurality of second flame holes 155 on the burner 150 is not limited to the form as shown in Figs. 5A and 5B. In other words, as shown in FIGS. 6A and 6B, 0956-A21876TW(N2); P55950046TW:hawdong 13.1306933 a plurality of first flame holes 154 and a plurality of second flame holes 15 5 on the burner 150' It can also be parallel to each other in the way of the father's fault. In this case, the flame-stabilizing effect above the burner 150' is better, and the temperature distribution of the combustion field is more uniform, thereby making the temperature-type thermal NOx less likely to be generated. Further, in the present invention, in order to achieve an effect that the amount of fuel input into the first compartment 151 is greater than the amount of fuel input into the second compartment 152, except that the cross-sectional area of the first compartment 151 is made larger than the second In addition to the design of the section 152, it is also possible to adopt a design in which the area of the fuel inlet 153 on the first compartment 151 is larger than the area of the fuel inlet 153 on the second compartment 152. In more detail, the ratio of the area of the fuel input port 1 μ on the first compartment 151 to the area of the fuel input port 53 on the second compartment 152 may be between 15 and 3, and preferably. The ratio is 2. Similarly, when the ratio of the area of the fuel inlet 153 on the first compartment to the area of the fuel inlet 153 on the second compartment ι52 is 2, the amount of fuel input to the first compartment 151 is _ The amount of fuel input into the second compartment 152 is twice. As described above, the water heater disclosed in the present invention has a simplified structure, and can realize the reduction of nitrogen oxide generation by means of rich and light combustion. In other words, the water heater disclosed in the present invention can omit the structure of a plurality of total fuel control valves, and each burner only needs to be equipped with one fuel delivery pipe and one nozzle. Achieve the effect of rich and light combustion ^ thus greatly reducing the manufacturing cost of the entire water heater. Although the present invention has been disclosed in the preferred embodiments, it is not intended to be limited to 0956-A21876 TW (N2); P55950046 TW; hawdong 14 1306933, which is to be understood by those skilled in the art without departing from the spirit of the invention. In the scope of the invention, the scope of protection of the invention is defined by the scope of the appended claims.
0956-A21876TW(N2)；P55950046TW；hawdong 15 1306933 【圖式簡單說明】 第1圖係顯示一習知熱水器之平面示意圖； 第2圖係顯示根據第1圖之熱水器之部份内部構造示 意圖； 第3圖係顯示另一習知熱水器之部份内部構造示意 圖； 第4圖係顯示本發明之熱水器之平面示意圖； 第5A圖係顯示本發明之熱水器之一種部份内部構造 之立體示意圖； 第5B圖係顯示根據第5A圖之俯視示意圖； 第6A圖係顯示本發明之熱水器之另一種部份内部構 造之立體示意圖；以及 第6B圖係顯示根據第6A圖之俯視示意圖。 【主要元件符號說明】 I、 100〜熱水器 II、 110〜熱交換器 φ 12、120〜第一輸水管 13、 130〜第二輸水管 14、 140〜燃燒室 15、 60、150、150’〜燃燒器 15 a〜焰孔 15b、153〜燃料輸入口 16、 180〜鼓風機 17、 20、170〜主燃料供應管 0956-A21876TW(N2)；P55950046TW；hawdong 16 1306933 18、160〜燃料輸送管 18a、161〜喷嘴 30〜總燃料控制閥 40〜濃燃料輸送管 41〜濃燃料喷嘴 5 0〜淡燃料輸送管 51〜淡燃料喷嘴 61〜濃燃料輸入口 62〜淡燃料輸入口 63〜濃焰孔 64〜淡焰孔 151〜第一隔間 152〜第二隔間 154〜第一焰孔 155〜第二焰孔0956-A21876TW(N2); P55950046TW;hawdong 15 1306933 [Simplified Schematic] Fig. 1 is a schematic plan view showing a conventional water heater; Fig. 2 is a schematic view showing a part of the internal structure of the water heater according to Fig. 1; 3 is a schematic view showing a part of the internal structure of another conventional water heater; FIG. 4 is a schematic plan view showing the water heater of the present invention; FIG. 5A is a perspective view showing a part of the internal structure of the water heater of the present invention; The figure shows a schematic plan view according to Fig. 5A; Fig. 6A shows a perspective view of another part of the internal structure of the water heater of the present invention; and Fig. 6B shows a top view of Fig. 6A. [Description of main component symbols] I, 100~ water heater II, 110~ heat exchanger φ 12, 120~ first water delivery pipe 13, 130 to second water delivery pipe 14, 140 to combustion chamber 15, 60, 150, 150'~ Burner 15 a ~ flame holes 15b, 153 ~ fuel input port 16, 180 ~ blower 17, 20, 170 ~ main fuel supply pipe 0956-A21876TW (N2); P55950046TW; hawdong 16 1306933 18, 160 ~ fuel delivery pipe 18a, 161 to nozzle 30 to total fuel control valve 40 to rich fuel delivery pipe 41 to rich fuel nozzle 50 to light fuel delivery pipe 51 to pale fuel nozzle 61 to rich fuel input port 62 to light fuel input port 63 to thick flame hole 64 ~ light flame hole 151 ~ first compartment 152 ~ second compartment 154 ~ first flame hole 155 ~ second flame hole
0956-A21876TW(N2)：P55950046TW；hawdong 170956-A21876TW(N2): P55950046TW;hawdong 17