CN2786495Y - 冷凝式燃油燃气热水锅炉 - Google Patents
冷凝式燃油燃气热水锅炉 Download PDFInfo
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- CN2786495Y CN2786495Y CN 200520071853 CN200520071853U CN2786495Y CN 2786495 Y CN2786495 Y CN 2786495Y CN 200520071853 CN200520071853 CN 200520071853 CN 200520071853 U CN200520071853 U CN 200520071853U CN 2786495 Y CN2786495 Y CN 2786495Y
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Abstract
本实用新型公开了一种冷凝式燃油燃气热水锅炉，包括炉体、炉体内的炉胆，所述炉胆的下部设有横置的U形对流管，U形对流管的上直管的后端部与炉胆的后端部连通，U形对流管的下直管的后端部伸出炉体形成排烟口，上直管与下直管之间设有隔板，隔板的后沿与炉体的后壁连接，隔板的前沿与U形对流管的弯头之间有间距，靠近排烟口的炉体上设有进水口，炉胆上部的炉体上设有出水口；本实用新型的水流方向与烟气流动方向相反，使传热温差达到最大，从而增加了传热量，提高了热效率，达到了节能的效果。
Description
技术领域
本实用新型涉及一种冷凝式燃油燃气热水锅炉。
背景技术
目前市场上使用的燃油燃气锅炉结构如图1所示，燃料在炉胆内燃烧后，经燃烬室烟气进入围绕在炉胆周围的第一回程直烟管到达前烟箱，然后又进入第二回程直烟管，最后通过烟囱排入大气，水从锅壳的上部或下部进入锅筒，充满在炉胆和烟管的周围，所以锅炉各部分的水温温差不大。
上述锅炉的缺点是：由于进入锅筒的水只能是自然循环，所以锅炉各部分的水温温差不大，而且锅炉的高温受热面--炉胆布置在锅炉的中心，而围绕在炉胆最近的几圈是次高温受热面，在炉胆外围的几圈是低温受热面，所以锅炉内烟气与水之间的流程无法形成逆向流动，因此，传热温差也无法达到最大值，由于受到锅炉出水温度的限制，故锅炉的排烟温度很难降低，一般热水锅炉的出水温度都在95℃，所以锅炉的排烟温度不可能降低至100℃以下。
发明内容
本实用新型的目的是：提供一种冷凝式燃油燃气热水锅炉，它的水流方向与烟气流动方向相反，使传热温差达到最大，从而增加了传热量，提高了热效率，达到了节能的效果。
本实用新型的技术方案是：一种冷凝式燃油燃气热水锅炉，包括炉体、炉体内的炉胆，所述炉胆的下部设有横置的U形对流管，U形对流管的上直管的后端部与炉胆的后端部连通，U形对流管的下直管的后端部伸出炉体形成排烟口，上直管与下直管之间设有隔板，隔板的后沿与炉体的后壁连接，隔板的前沿与U形对流管的弯头之间有间距，靠近排烟口的炉体上设有进水口，炉胆上部的炉体上设有出水口。
本实用新型进一步的技术方案是：一种冷凝式燃油燃气热水锅炉，包括炉体、炉体内的炉胆，所述炉胆的下部设有横置的U形对流管，U形对流管的上直管的后端部与炉胆的后端部连通，U形对流管的下直管的后端部伸出炉体形成排烟口，上直管与下直管之间设有隔板，隔板的后沿与炉体的后壁连接，隔板的前沿与U形对流管的弯头之间有间距，靠近排烟口的炉体上设有进水口，炉胆上部的炉体上设有出水口；所述炉胆的后端部与炉体的后壁脱开。
本实用新型更详细的技术方案是：一种冷凝式燃油燃气热水锅炉，包括炉体、炉体内的炉胆，所述炉胆的下部设有横置的U形对流管，U形对流管的上直管的后端部与炉胆的后端部连通，U形对流管的下直管的后端部伸出炉体形成排烟口，上直管与下直管之间设有隔板，隔板的后沿与炉体的后壁连接，隔板的前沿与U形对流管的弯头之间有间距，靠近排烟口的炉体上设有进水口，炉胆上部的炉体上设有出水口；所述炉胆的后端部与炉体的后壁脱开；所述炉体外的排烟口下部连接有冷凝水排水管。
本实用新型的优点是：1.本实用新型采用水流方向与烟气流动方向相反的结构，使传热温差达到最大，从而增加了传热量，提高了热效率，达到了节能的效果。
2.由于本实用新型的冷水是从锅炉底部进入下部水空间，而烟气出口也在锅炉底部，因此可以获得较低的排烟温度，进入锅炉的冷水温度越低，排烟温度就越低，从而降低了排烟热量损失，进一步提高了锅炉的热效率。
3.同样道理，本实用新型的排烟温度完全可以降至100℃以下，这时烟气中的水蒸汽就会冷凝变成冷凝水，因而能放出汽化潜热，每公斤水的汽化潜热约为600大卡，这样，锅炉的水就多吸收了这部分额外的汽化潜热。
4.本实用新型的炉体内表面全部处在水空间中，所以只要简单地进行外表保温，其外表面温度都很低，散热损失很小，同样也提高了热效率。
附图说明
下面结合附图和实施例对本实用新型作进一步的描述：图1为现有锅炉的结构示意图；图2为本实用新型的结构示意图。
其中：1炉体；2炉胆；3U形对流管；4上直管；5下直管；6排烟口；7隔板；8间距；9进水口；10出水口；11冷凝水排水管。
具体实施方式
实施例：如图2所示，一种冷凝式燃油燃气热水锅炉，包括炉体1、炉体1内的炉胆2，炉胆2的后端部与炉体1的后壁脱开，炉胆2的下部设有横置的U形对流管3，U形对流管3的上直管4的后端部与炉胆2的后端部连通，U形对流管3的下直管5的后端部伸出炉体1形成排烟口6，排烟口6下部连接有冷凝水排水管11，上直管4与下直管5之间设有隔板7，隔板7的后沿与炉体1的后壁连接，隔板7的前沿与U形对流管3的弯头之间有间距8，靠近排烟口6的炉体1上设有进水口9，炉胆2上部的炉体1上设有出水口10。
本实用新型采用水流方向与烟气流动方向相反的结构，使传热温差达到最大，从而增加了传热量，提高了热效率，达到了节能的效果；由于本实用新型的冷水是从锅炉底部进入下部水空间，而烟气出口也在锅炉底部，因此可以获得较低的排烟温度，进入锅炉的冷水温度越低，排烟温度就越低，从而降低了排烟热量损失，进一步提高了锅炉的热效率；同样道理，本实用新型的排烟温度完全可以降至100℃以下，这时烟气中的水蒸汽就会冷凝变成冷凝水，因而能放出汽化潜热，每公斤水的汽化潜热约为600大卡，这样，锅炉的水就多吸收了这部分额外的汽化潜热；本实用新型的炉体1内表面全部处在水空间中，所以只要简单地进行外表保温，其外表面温度都很低，散热损失很小，同样也提高了热效率。
Claims (3)
1.一种冷凝式燃油燃气热水锅炉，包括炉体(1)、炉体(1)内的炉胆(2)，其特征在于：所述炉胆(2)的下部设有横置的U形对流管(3)，U形对流管(3)的上直管(4)的后端部与炉胆(2)的后端部连通，U形对流管(3)的下直管(5)的后端部伸出炉体(1)形成排烟口(6)，上直管(4)与下直管(5)之间设有隔板(7)，隔板(7)的后沿与炉体(1)的后壁连接，隔板(7)的前沿与U形对流管(3)的弯头之间有间距(8)，靠近排烟口(6)的炉体(1)上设有进水口(9)，炉胆(2)上部的炉体(1)上设有出水口(10)。
2.根据权利要求1所述的冷凝式燃油燃气热水锅炉，其特征在于：所述炉胆(2)的后端部与炉体(1)的后壁脱开。
3.根据权利要求1所述的冷凝式燃油燃气热水锅炉，其特征在于：所述炉体(1)外的排烟口(6)下部连接有冷凝水排水管(11)。
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331085A (zh) * | 2011-09-21 | 2012-01-25 | 西安交通大学 | 一种整体式冷凝锅炉 |
| CN102563837A (zh) * | 2012-01-20 | 2012-07-11 | 中国石油天然气第八建设有限公司 | 燃气热水锅炉 |
| CN106288369A (zh) * | 2016-08-31 | 2017-01-04 | 北京京房经纬科技发展有限公司 | 一种燃烧甲醇的卧式锅炉 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102331085A (zh) * | 2011-09-21 | 2012-01-25 | 西安交通大学 | 一种整体式冷凝锅炉 |
| CN102331085B (zh) * | 2011-09-21 | 2014-01-15 | 西安交通大学 | 一种整体式冷凝锅炉 |
| CN102563837A (zh) * | 2012-01-20 | 2012-07-11 | 中国石油天然气第八建设有限公司 | 燃气热水锅炉 |
| CN106288369A (zh) * | 2016-08-31 | 2017-01-04 | 北京京房经纬科技发展有限公司 | 一种燃烧甲醇的卧式锅炉 |
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