CN201866785U - Horizontal heat-tube type air preheater with double tube plates - Google Patents
Horizontal heat-tube type air preheater with double tube plates Download PDFInfo
- Publication number
- CN201866785U CN201866785U CN2010205754040U CN201020575404U CN201866785U CN 201866785 U CN201866785 U CN 201866785U CN 2010205754040 U CN2010205754040 U CN 2010205754040U CN 201020575404 U CN201020575404 U CN 201020575404U CN 201866785 U CN201866785 U CN 201866785U
- Authority
- CN
- China
- Prior art keywords
- tube
- plates
- heat pipe
- tube plate
- air preheater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000003546 flue gas Substances 0.000 claims abstract description 15
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 8
- 239000010959 steel Substances 0.000 claims abstract description 8
- 241000587161 Gomphocarpus Species 0.000 claims description 2
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000012530 fluid Substances 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
Images
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
- Air Supply (AREA)
Abstract
一种卧式热管式双管板空气预热器，其热管束中部固定在两个竖直的中间管板与之对应的通孔上，热管束两端分别置于两个竖直端管板与之对应的通孔上，并使热管与水平方向呈2～30°夹角，在中间管板和端管板两侧设有与之垂直相连的箱板，其与中间管板和端管板组成两个上下开口的方筒，它们的开口上均设有与其对应的空气或烟气的进出口管。上述四个管板即两个中间管板和两个端管板周边均固定在型钢上，通过型钢再与其他部件相连。本实用新型传热效率高、能耗低、使用寿命长、加工简单，中间双管板，解决了普通空气预热器的空气泄漏量大或使用时间长泄漏量增大的问题，可控制空气泄漏量小于1％。
A horizontal heat pipe type double tube plate air preheater, the middle part of the heat tube bundle is fixed on the corresponding through holes of the two vertical middle tube plates, and the two ends of the heat tube bundle are respectively placed on the two vertical end tube plates On the corresponding through hole, and make the heat pipe form an angle of 2~30° with the horizontal direction, there are box plates vertically connected to the middle tube plate and the end tube plate on both sides, which are connected with the middle tube plate and the end tube The plates form two square cylinders with upper and lower openings, and their openings are provided with corresponding air or flue gas inlet and outlet pipes. The periphery of the above four tube sheets, that is, the two middle tube sheets and the two end tube sheets, are all fixed on the section steel, and then connected with other components through the section steel. The utility model has the advantages of high heat transfer efficiency, low energy consumption, long service life, simple processing, and double-tube plates in the middle, which solves the problem of large air leakage or increased leakage of ordinary air preheaters when used for a long time, and can control the air Leakage is less than 1%.
Description
技术领域：本实用新型涉及一种热管式空气预热器。Technical field: The utility model relates to a heat pipe type air preheater.
背景技术：现有卧式热管式空气预热器的结构大体是：若干根内有传热工质的热管组成热管束，其中部固定在竖直的中间管板与之对应的通孔上，热管束两端分别置于两个竖直端管板与之对应的通孔上，并使热管与水平方向呈2～30°夹角。在中间管板和端管板两侧设有与之垂直相连的箱板，其与中间管板和端管板组成两个上下开口的方筒，它们的开口上均设有与其对应的空气或烟气的进出口管。另在两端管板外面设有与其活动连接并将其包容的管箱盖。它的不足之处是：该热管式空气预热器普遍存在漏风的问题，即未经过预热的空气直接漏到烟气中，漏风多的甚至超过10％，这样就造成燃烧所需风量不足，对正常燃烧和系统的正常工作造成很大影响，造成烟气堵塞，增加燃料的不完全燃烧损失，降低了传热效率，还由于未经燃烧的空气直接进入烟道，增加了烟气的流量，从而增大了引风机的出力，加大了电能消耗。Background technology: The structure of the existing horizontal heat pipe air preheater is generally: a number of heat pipes with heat transfer working fluid inside form a heat pipe bundle, and the middle part is fixed on the corresponding through hole of the vertical middle tube plate. The two ends of the heat pipe bundle are respectively placed on the corresponding through holes of the two vertical end tube sheets, and the heat pipes form an included angle of 2-30° with the horizontal direction. On both sides of the middle tube plate and the end tube plate, there are vertically connected box plates, which form two square tubes with upper and lower openings with the middle tube plate and the end tube plate, and their openings are equipped with corresponding air or The inlet and outlet pipes for flue gas. In addition, a tube box cover that is flexibly connected to and contains the tube plate at both ends is provided. Its shortcoming is that the heat pipe air preheater generally has the problem of air leakage, that is, the air that has not been preheated directly leaks into the flue gas, and the air leakage is even more than 10%, which results in insufficient air volume for combustion. , has a great impact on the normal combustion and normal operation of the system, resulting in the blockage of the flue gas, increasing the incomplete combustion loss of the fuel, reducing the heat transfer efficiency, and also increasing the flue gas because the unburned air directly enters the flue. flow, thereby increasing the output of the induced draft fan and increasing the power consumption.
发明内容：本实用新型的目的在于提供一种传热效率高、能耗低、使用寿命长、加工简单的卧式热管式双管板空气预热器。SUMMARY OF THE INVENTION: The purpose of this utility model is to provide a horizontal heat pipe double tube plate air preheater with high heat transfer efficiency, low energy consumption, long service life and simple processing.
本实用新型主要是在现有技术的基础上，增设一个中间管板即两个中间管板。本实用新型也是若干根内有传热工质的热管组成热管束，该热管束的热管可以是光管或其上设有扩展传热面积的螺旋翅片、肋片、翼片、H型翅片或钉头管等。上述热管束中部分别固定在两个竖直中间管板与之对应的通孔上，其可以是直接固定在两个竖直中间管板与之对应的通孔上，也可以是通过连接件间接固定在两个竖直中间管板与之对应的通孔上。上述热管束两端分别置于两个竖直端管板与之对应的通孔上，并使热管与水平方向呈2～30°夹角。最好上述四个管板即两个中间管板和两个端管板周边均固定在型钢上，通过型钢再与其他部件相连。在中间管板和端管板两侧设有与之垂直相连的箱板，其与中间管板和端管板组成两个上下开口的方筒，即空气室和烟气室，它们的开口上均设有与其对应的冷介质或热介质的进出口管。另在两端管板外面设有与其活动连接并将其包容的管箱盖，当热管失效时可打开管箱盖及时更换。The utility model is mainly based on the prior art, adding an intermediate tube sheet, ie two intermediate tube sheets. The utility model is also composed of several heat pipes with heat transfer working fluid inside to form a heat pipe bundle. The heat pipes of the heat pipe bundle can be bare pipes or spiral fins, ribs, fins, and H-shaped fins that expand the heat transfer area. Sheet or nail head tube, etc. The middle part of the above-mentioned heat pipe bundle is respectively fixed on the corresponding through holes of the two vertical middle tube sheets, which can be directly fixed on the corresponding through holes of the two vertical middle tube sheets, or can be indirectly fixed through the connecting piece. It is fixed on the corresponding through holes of the two vertical middle tube plates. The two ends of the above-mentioned heat pipe bundle are respectively placed on the corresponding through holes of the two vertical end tube sheets, and the heat pipes form an included angle of 2-30° with the horizontal direction. Preferably, the periphery of the above four tube sheets, that is, the two middle tube sheets and the two end tube sheets, are all fixed on the profiled steel, and then connected with other parts through the profiled steel. On both sides of the middle tube plate and the end tube plate, there are vertically connected box plates, which form two square tubes with upper and lower openings, namely the air chamber and the flue gas chamber. All are equipped with corresponding inlet and outlet pipes for cold medium or hot medium. In addition, a tube box cover is provided on the outside of the tube plate at both ends to flexibly connect it and contain it. When the heat pipe fails, the tube box cover can be opened and replaced in time.
当空气通过空气进口管进入空气室内，便与热管冷凝段内的汽相传热工质进行热量交换，使汽相工质冷凝变为流体流至蒸发段(烟气侧)，经过热交换升温后的空气从空气出口管排出。烟气经烟气进口管进入热管空气预热器的烟气室，其与热管束蒸发段内的液相传热工质进行热量交换，将热量传递给烟气室热管内的传热工质使其蒸发变为汽体，上升至冷凝段，经过热交换降温后的烟气从烟气出口管排出。本实用新型与现有技术相比具有如下优点：When the air enters the air chamber through the air inlet pipe, it exchanges heat with the vapor-phase heat-transfer working medium in the condensation section of the heat pipe, so that the vapor-phase working medium condenses into a fluid and flows to the evaporation section (flue gas side), and after heat exchange, the temperature rises The air is exhausted from the air outlet tube. The flue gas enters the flue gas chamber of the heat pipe air preheater through the flue gas inlet pipe, and exchanges heat with the liquid-phase heat transfer medium in the evaporation section of the heat pipe bundle, and transfers the heat to the heat transfer medium in the heat pipe of the flue gas chamber Make it evaporate into gas, rise to the condensation section, and the flue gas after heat exchange and cooling is discharged from the flue gas outlet pipe. Compared with the prior art, the utility model has the following advantages:
1.中间管板为双管板，使空气预热器在中间部位形成了一个空腔，解决了普通空气预热器的空气泄漏量大或使用时间长泄漏量增大的问题，可控制空气泄漏量小于1％。1. The middle tube plate is a double tube plate, so that the air preheater forms a cavity in the middle part, which solves the problem of large air leakage or increased leakage of ordinary air preheater after long use time, and can control the air Leakage is less than 1%.
2.箱体两侧箱盖为活连接，当热管失效时可打开箱盖进行换管。2. The box covers on both sides of the box are flexible connections. When the heat pipe fails, the box cover can be opened to replace the tube.
3.结构简单、强度高、稳定性好、加工难度小、成本低。3. Simple structure, high strength, good stability, low processing difficulty and low cost.
4.安全可靠，使用寿命长。4. Safe and reliable, long service life.
5.降低了排烟温度，节能环保。5. Lower exhaust gas temperature, energy saving and environmental protection.
附图说明：Description of drawings:
图1为本实用新型的主视示意简图。Fig. 1 is a schematic diagram of the front view of the utility model.
图2为本实用新型热管安装放大示意简图。Figure 2 is an enlarged schematic diagram of the installation of the heat pipe of the present invention.
具体实施方式：在图1所示的卧式热管式双管板空气预热器的主视示意简图中，若干根内有传热工质外有螺旋翅片的热管组成热管束1，上述热管束中部分别固定在两个竖直中间管板2、3与之对应的通孔上，热管外中部设圆环形中间法兰4、5，其与中间管板上的通孔相对应。上述法兰圆周面上设有环形凹槽，其内设有密封圈6。上述热管束两端分别置于两个竖直端管板与之对应的通孔上，并使热管与水平方向呈2～30°夹角，如图2所示，该热管与高位端管板7通孔对应的位置上设有将管板通孔与热管间隙封堵的端法兰8。该热管低端一侧对应的端管板9上设有压帽10，穿过压帽中心通孔的螺杆11一端置于热管端顶，而位于压帽外面的螺杆上套有弹簧12，弹簧另一端设螺母13，通过螺母将弹簧压紧，以便调节各法兰与各管板的密封间隙。上述四个管板即两个中间管板和两个端管板周边均固定在型钢上，通过型钢再与其他部件相连。在中间管板和端管板两侧设有与之垂直相连的箱板，其与中间管板和端管板组成两个上下开口的方筒，一个为空气室，其上端开口上设有与其对应的空气进口管14，其下端开口上设有与其对应的空气出口管15；另一个为烟气室，其下端开口上设有与其对应的烟气进口管16，其上端开口上设有与其对应的烟气出口管17。另在两端管板外面设有与其活动连接并将其包容的管箱盖18。Specific implementation method: In the schematic diagram of the front view of the horizontal heat pipe double tube plate air preheater shown in Fig. The middle part of the heat pipe bundle is respectively fixed on the corresponding through holes of the two vertical middle tube sheets 2, 3, and the outer middle part of the heat pipes is provided with
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205754040U CN201866785U (en) | 2010-10-25 | 2010-10-25 | Horizontal heat-tube type air preheater with double tube plates |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205754040U CN201866785U (en) | 2010-10-25 | 2010-10-25 | Horizontal heat-tube type air preheater with double tube plates |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201866785U true CN201866785U (en) | 2011-06-15 |
Family
ID=44137939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205754040U Expired - Fee Related CN201866785U (en) | 2010-10-25 | 2010-10-25 | Horizontal heat-tube type air preheater with double tube plates |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201866785U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090989A (en) * | 2016-08-09 | 2016-11-09 | 瑞切尔石化设备（上海）有限公司 | A kind of elastic pressuring clamping device for plate air preheater |
| CN107327869A (en) * | 2017-07-04 | 2017-11-07 | 江苏东方成套设备制造集团有限公司 | A kind of heat pipe preheater |
| CN116793124A (en) * | 2023-07-12 | 2023-09-22 | 天津华能北方热力设备有限公司 | Efficient clean air heat exchanger |
-
2010
- 2010-10-25 CN CN2010205754040U patent/CN201866785U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106090989A (en) * | 2016-08-09 | 2016-11-09 | 瑞切尔石化设备（上海）有限公司 | A kind of elastic pressuring clamping device for plate air preheater |
| CN107327869A (en) * | 2017-07-04 | 2017-11-07 | 江苏东方成套设备制造集团有限公司 | A kind of heat pipe preheater |
| CN116793124A (en) * | 2023-07-12 | 2023-09-22 | 天津华能北方热力设备有限公司 | Efficient clean air heat exchanger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2014044204A1 (en) | Heat supply and exchange device with finned straight tube forced to be double ring-shaped | |
| CN201866785U (en) | Horizontal heat-tube type air preheater with double tube plates | |
| CN203147732U (en) | An enamel plate economizer | |
| CN202074498U (en) | High-efficient waste heat recovery device of gas boiler | |
| CN104359223B (en) | System and method for using steam turbine exhaust steam as heat medium of power plant boiler heater | |
| CN201081587Y (en) | Composite heat pipe heat exchanger | |
| CN103245058B (en) | Micro-positive pressure combustion combined cooling energy-saving boiler | |
| CN208382962U (en) | A kind of Demountable combined-type heat exchanger for high-temperature flue | |
| CN203162983U (en) | Novel efficient combined type air preheating device | |
| CN102200398B (en) | Double-shell heat exchanger | |
| CN201844416U (en) | Vertical heat pipe type double-pipe plate air preheater | |
| CN103134366A (en) | Turbolator and cast iron plate combined type air pre-heater | |
| CN204574098U (en) | The hermetically-sealed construction that air preheater and cold junction thereof are radial or axial | |
| CN105066437B (en) | The complete wet back of the body central flame flame boiler of integral type | |
| CN202382616U (en) | Tube-replaceable vertical type array tube air pre-heater | |
| CN203454101U (en) | Two-stage internal circulation series system phase change heat exchanger | |
| CN202432893U (en) | Single-expansion-tube preheater | |
| CN201852473U (en) | Cyclone heat exchanger | |
| CN202432885U (en) | Floating plate type tubular preheater | |
| CN206695648U (en) | Gas waste-heat retracting device | |
| CN206177102U (en) | Gas water heat exchanger | |
| CN201706938U (en) | Spiral flat pipe applied to waste heat boiler | |
| CN1920387A (en) | Low-pressure coal saver for boiler | |
| CN217442297U (en) | Novel energy-saving boiler air heater | |
| CN201897429U (en) | Structure for preventing heat exchanging tube from deforming due to heating |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110615 Termination date: 20131025 |