CN108507364A - A kind of spare heat-exchange system of waste heat boiler of glass furnace - Google Patents
A kind of spare heat-exchange system of waste heat boiler of glass furnace Download PDFInfo
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- CN108507364A CN108507364A CN201810324336.1A CN201810324336A CN108507364A CN 108507364 A CN108507364 A CN 108507364A CN 201810324336 A CN201810324336 A CN 201810324336A CN 108507364 A CN108507364 A CN 108507364A
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- flue
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- heat exchanger
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- 239000002918 waste heat Substances 0.000 title claims abstract description 41
- 239000011521 glass Substances 0.000 title claims abstract description 13
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 36
- 239000003546 flue gas Substances 0.000 claims abstract description 36
- 239000007789 gas Substances 0.000 claims abstract description 6
- 238000006477 desulfuration reaction Methods 0.000 abstract description 8
- 230000023556 desulfurization Effects 0.000 abstract description 8
- 239000000779 smoke Substances 0.000 abstract description 4
- 239000002826 coolant Substances 0.000 abstract description 3
- 238000007710 freezing Methods 0.000 abstract description 3
- 230000008014 freezing Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 2
- 230000009172 bursting Effects 0.000 abstract 1
- 239000000428 dust Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 238000005336 cracking Methods 0.000 description 2
- 238000003915 air pollution Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22B—METHODS OF STEAM GENERATION; STEAM BOILERS
- F22B1/00—Methods of steam generation characterised by form of heating method
- F22B1/02—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers
- F22B1/18—Methods of steam generation characterised by form of heating method by exploitation of the heat content of hot heat carriers the heat carrier being a hot gas, e.g. waste gas such as exhaust gas of internal-combustion engines
- F22B1/1892—Systems therefor not provided for in F22B1/1807 - F22B1/1861
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/10—Arrangements for using waste heat
- F27D17/15—Arrangements for using waste heat using boilers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2215/00—Preventing emissions
- F23J2215/10—Nitrogen; Compounds thereof
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27M—INDEXING SCHEME RELATING TO ASPECTS OF THE CHARGES OR FURNACES, KILNS, OVENS OR RETORTS
- F27M2001/00—Composition, conformation or state of the charge
- F27M2001/07—Glass
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- Organic Chemistry (AREA)
- Materials Engineering (AREA)
- Combustion & Propulsion (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Treating Waste Gases (AREA)
- Chimneys And Flues (AREA)
Abstract
Description
技术领域technical field
本发明涉及玻璃窑余热利用和烟气治理技术领域，具体是一种玻璃窑余热锅炉的备用换热系统。The invention relates to the technical field of glass kiln waste heat utilization and flue gas treatment, in particular to a spare heat exchange system for a glass kiln waste heat boiler.
背景技术Background technique
玻璃窑炉排出的烟气温度一般在400～600℃之间，排出的烟气中含有NOx、SO2和烟尘等污染环境的气体。目前普遍的余热利用和烟气治理是余热发电和脱硝、脱硫、除尘一体化。由于烟气脱硝最佳的温度选择是330～380℃之间，脱硫最佳的选择是使用半干法工艺，要求的温度最佳范围是150～200℃之间，因此一般的烟气流程是：高温烟气先进入余热锅炉的高温换热段，然后离开余热锅炉去脱硝系统，经过脱硝后的烟气再回到余热锅炉，经过余热锅炉的低温换热段，离开余热锅炉后进入脱硫除尘系统。The temperature of the flue gas discharged from the glass kiln is generally between 400 and 600 ° C, and the discharged flue gas contains NOx, SO 2 and smoke dust and other gases that pollute the environment. At present, the common waste heat utilization and flue gas treatment is the integration of waste heat power generation, denitrification, desulfurization and dust removal. Since the best temperature selection for flue gas denitrification is between 330 and 380 °C, the best choice for desulfurization is to use a semi-dry process, and the optimum temperature range required is between 150 and 200 °C, so the general flue gas process is : The high-temperature flue gas first enters the high-temperature heat exchange section of the waste heat boiler, and then leaves the waste heat boiler to go to the denitrification system. After denitration, the flue gas returns to the waste heat boiler, passes through the low-temperature heat exchange section of the waste heat boiler, and enters the desulfurization and dust removal after leaving the waste heat boiler system.
随着国家对大气污染治理力度的加大，要求玻璃窑烟气排放不得出现超标现象，这就要求余热利用和烟气治理系统不得出现停机现象。由于玻璃窑烟气含有大量的具有粘附性的粉尘，余热锅炉就必然会出现换热面粉尘逐渐积累的过程，当粉尘积累到一定程度，换热效果就会很差，通道阻力就会使引风机无法克服，此时，余热锅炉就必须停止运行，离线进行人工清灰。这就使得烟气治理系统所需要的烟气温度无法达到，使得烟气治理系统被迫停机，造成烟气排放污染物严重超标。With the increasing efforts of the country to control air pollution, it is required that the flue gas emission of glass kilns must not exceed the standard, which requires that the waste heat utilization and flue gas treatment systems must not be shut down. Since the flue gas from the glass kiln contains a large amount of sticky dust, the waste heat boiler will inevitably have a process of gradually accumulating heat transfer dust. When the dust accumulates to a certain extent, the heat transfer effect will be poor, and the channel resistance will make The induced draft fan cannot overcome it. At this time, the waste heat boiler must be stopped and manually cleaned off-line. This makes the flue gas temperature required by the flue gas treatment system unable to reach, and the flue gas treatment system is forced to shut down, causing the flue gas emission pollutants to seriously exceed the standard.
目前，常规的做法是采用备用余热锅炉系统，当需要离线清灰时，开启备用余热锅炉系统对烟气进行降温，但是这种方式成本很高，另外，处在备用状态的锅炉不仅会出现腐蚀，冬天还会冻裂。At present, the conventional method is to use the standby waste heat boiler system. When off-line cleaning is required, the standby waste heat boiler system is turned on to cool down the flue gas. , It will freeze and crack in winter.
发明内容Contents of the invention
本发明的目的在于提供一种玻璃窑余热锅炉的备用换热系统，该换热系统结构简单、成本低，并且能够避免出现冬季设备冻裂的情况。The object of the present invention is to provide a backup heat exchange system for a glass kiln waste heat boiler, which has a simple structure and low cost, and can avoid freezing and cracking of the equipment in winter.
本发明解决其技术问题所采用的技术方案是：The technical solution adopted by the present invention to solve its technical problems is:
一种玻璃窑余热锅炉的备用换热系统，包括管式换热器与热管换热器，余热锅炉的进气烟道通过第一烟道连接管式换热器的烟气入口，管式换热器的烟气出口通过第二烟道与余热锅炉的脱硝进气烟道相连，热管换热器的烟气入口通过第三烟道与余热锅炉的脱硝出气烟道相连，热管换热器的烟气出口通过第四烟道与余热锅炉的出气烟道相连；第一烟道、第二烟道、第三烟道与第四烟道分别设有烟道闸板。A backup heat exchange system for a waste heat boiler in a glass kiln, including a tube heat exchanger and a heat pipe heat exchanger. The intake flue of the waste heat boiler is connected to the flue gas inlet of the tube heat exchanger through the first flue. The flue gas outlet of the heat exchanger is connected with the denitrification inlet flue of the waste heat boiler through the second flue, and the flue gas inlet of the heat pipe heat exchanger is connected with the denitrification outlet flue of the waste heat boiler through the third flue. The flue gas outlet is connected with the gas outlet flue of the waste heat boiler through the fourth flue; the first flue, the second flue, the third flue and the fourth flue are respectively provided with flue shutters.
进一步的，所述管式换热器为鳍片管式。Further, the tube heat exchanger is a fin tube type.
进一步的，所述热管换热器也为鳍片管式。Further, the heat pipe heat exchanger is also a finned tube type.
本发明的有益效果是，舍弃另外设置一套余热锅炉的传统方式，仅仅设置管式换热器与热管换热器连接到余热锅炉对应的烟道上，经过管式换热器换热的烟气进入脱硝系统脱硝，经过热管换热器换热的烟气进入脱硫系统脱硫，实现烟气治理；在换热时采用空气作为冷却介质，无需通入水，因此能够避免出现冬季设备冻裂的情况；并且结构简单、成本低。The beneficial effect of the present invention is that it abandons the traditional method of installing another set of waste heat boilers, and only installs the tube heat exchanger and the heat pipe heat exchanger connected to the flue corresponding to the waste heat boiler, and the flue gas exchanged through the tube heat exchanger Enter the denitrification system for denitrification, and the flue gas exchanged by the heat pipe heat exchanger enters the desulfurization system for desulfurization to realize flue gas treatment; air is used as the cooling medium during heat exchange, and water does not need to be introduced, so it can avoid freezing and cracking of equipment in winter; Moreover, the structure is simple and the cost is low.
附图说明Description of drawings
下面结合附图和实施例对本发明进一步说明：Below in conjunction with accompanying drawing and embodiment the present invention is further described:
图1是本发明的结构示意图。Fig. 1 is a structural schematic diagram of the present invention.
具体实施方式Detailed ways
如图1所示，本发明提供一种玻璃窑余热锅炉的备用换热系统，包括管式换热器1与热管换热器2，余热锅炉3的进气烟道3a通过第一烟道4连接管式换热器1的烟气入口，管式换热器1的烟气出口通过第二烟道5与余热锅炉3的脱硝进气烟道3b相连，热管换热器2的烟气入口通过第三烟道6与余热锅炉3的脱硝出气烟道3c相连，热管换热器2的烟气出口通过第四烟道7与余热锅炉3的出气烟道3d相连；管式换热器1与热管换热器2均采用空气作为换热冷却介质；管式换热器1与热管换热器2均为鳍片管式。第一烟道4、第二烟道5、第三烟道6与第四烟道7分别设有第一烟道闸板8、第二烟道闸板9、第三烟道闸板10与第四烟道闸板11。As shown in Figure 1, the present invention provides a backup heat exchange system for a waste heat boiler in a glass kiln, which includes a tube heat exchanger 1 and a heat pipe heat exchanger 2, and the intake flue 3a of the waste heat boiler 3 passes through the first flue 4 Connect the flue gas inlet of the tubular heat exchanger 1, the flue gas outlet of the tubular heat exchanger 1 is connected with the denitrification inlet flue 3b of the waste heat boiler 3 through the second flue 5, and the flue gas inlet of the heat pipe heat exchanger 2 The third flue 6 is connected to the denitrification outlet flue 3c of the waste heat boiler 3, and the flue gas outlet of the heat pipe heat exchanger 2 is connected to the outlet flue 3d of the waste heat boiler 3 through the fourth flue 7; the tubular heat exchanger 1 Both the heat pipe heat exchanger 2 and the heat pipe heat exchanger 2 use air as the heat exchange cooling medium; the tube heat exchanger 1 and the heat pipe heat exchanger 2 are both fin tube type. The first flue 4, the second flue 5, the third flue 6 and the fourth flue 7 are respectively provided with a first flue shutter 8, a second flue shutter 9, a third flue shutter 10 and The fourth flue damper 11.
当余热锅炉3停止使用时，依次打开第一烟道闸板8、第二烟道闸板9、第三烟道闸板10与第四烟道闸板11，使本发明投入使用；烟气经过管式换热器1换热后进入脱硝系统12进行脱硝，脱硝后的烟气进入热管换热器2进一步换热，再进入脱硫系统13进行脱硫，最终完成烟气的处理。When the waste heat boiler 3 is out of service, the first flue damper 8, the second flue damper 9, the third flue damper 10 and the fourth flue damper 11 are opened sequentially to put the present invention into use; the flue gas After exchanging heat in the tubular heat exchanger 1, it enters the denitrification system 12 for denitrification, and the denitrified flue gas enters the heat pipe heat exchanger 2 for further heat exchange, and then enters the desulfurization system 13 for desulfurization, and finally completes the flue gas treatment.
以上所述，仅是本发明的较佳实施例而已，并非对本发明作任何形式上的限制；任何熟悉本领域的技术人员，在不脱离本发明技术方案范围情况下，都可利用上述揭示的方法和技术内容对本发明技术方案做出许多可能的变动和修饰，或修改为等同变化的等效实施例。因此，凡是未脱离本发明技术方案的内容，依据本发明的技术实质对以上实施例所做的任何简单修改、等同替换、等效变化及修饰，均仍属于本发明技术方案保护的范围内。The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any form; any person skilled in the art can use the above disclosure without departing from the scope of the technical solution of the present invention. Methods and Technical Contents Many possible changes and modifications are made to the technical solution of the present invention, or modified into equivalent embodiments with equivalent changes. Therefore, any simple modifications, equivalent replacements, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention, which do not deviate from the technical solutions of the present invention, still fall within the protection scope of the technical solutions of the present invention.
Claims (3)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810324336.1A CN108507364A (en) | 2018-04-12 | 2018-04-12 | A kind of spare heat-exchange system of waste heat boiler of glass furnace |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810324336.1A CN108507364A (en) | 2018-04-12 | 2018-04-12 | A kind of spare heat-exchange system of waste heat boiler of glass furnace |
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| CN201810324336.1A Pending CN108507364A (en) | 2018-04-12 | 2018-04-12 | A kind of spare heat-exchange system of waste heat boiler of glass furnace |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109443017A (en) * | 2018-09-30 | 2019-03-08 | 株洲醴陵旗滨玻璃有限公司 | Smoke processing system and its operation method |
| CN111207600A (en) * | 2020-01-17 | 2020-05-29 | 深圳市凯盛科技工程有限公司 | Method for utilizing waste heat of flue gas in glass kiln |
| CN114887409A (en) * | 2022-04-26 | 2022-08-12 | 成都易态科技有限公司 | Method for efficiently combining waste heat utilization, dust removal and denitration of high-temperature flue gas |
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| CN208124918U (en) * | 2018-04-12 | 2018-11-20 | 深圳市凯盛科技工程有限公司 | A kind of spare heat-exchange system of waste heat boiler of glass furnace |
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| JP2005321120A (en) * | 2004-05-06 | 2005-11-17 | Babcock Hitachi Kk | Ash melting furnace system |
| CN101530736A (en) * | 2009-03-06 | 2009-09-16 | 西安宇清环境工程科技有限责任公司 | High-efficiency desulfurization and dust-removal method for glass kiln |
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| CN109443017A (en) * | 2018-09-30 | 2019-03-08 | 株洲醴陵旗滨玻璃有限公司 | Smoke processing system and its operation method |
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| CN111207600A (en) * | 2020-01-17 | 2020-05-29 | 深圳市凯盛科技工程有限公司 | Method for utilizing waste heat of flue gas in glass kiln |
| CN114887409A (en) * | 2022-04-26 | 2022-08-12 | 成都易态科技有限公司 | Method for efficiently combining waste heat utilization, dust removal and denitration of high-temperature flue gas |
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Application publication date: 20180907 |