CN102788342A - Water tube type condensation superheated steam boiler - Google Patents
Water tube type condensation superheated steam boiler Download PDFInfo
- Publication number
- CN102788342A CN102788342A CN2012102765121A CN201210276512A CN102788342A CN 102788342 A CN102788342 A CN 102788342A CN 2012102765121 A CN2012102765121 A CN 2012102765121A CN 201210276512 A CN201210276512 A CN 201210276512A CN 102788342 A CN102788342 A CN 102788342A
- Authority
- CN
- China
- Prior art keywords
- superheated steam
- steam boiler
- type condensation
- condenser
- boiler
- 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.)
- Pending
Links
Images
Abstract
The invention relates to a water tube type condensation superheated steam boiler, and belongs to the field of heating device. The water tube type condensation superheated steam boiler comprises a boiler body, a flue and a superheater. The flue is internally provided with two stages of heat exchanging devices, namely, an energy saver and a condenser. According to the water tube type condensation superheated steam boiler provided by the invention, two stages of heat exchange of the energy saver and the condenser which are arranged in the flue is adopted so that the discharge smoke heat can be adequately utilized, the consumption of fuel is reduced, and the total emission is reduced. The energy saver and the condenser provided by the invention are made of corrosion resisting materials so that the water tube type condensation superheated steam boiler can resist corrosion of flue gas for a long time.
Description
Technical field
The present invention relates to a kind of boiler, the waterpipe type condensation superheated steam boiler of particularly a kind of fuel oil, combustion gas belongs to the heating equipment field.
Background technology
Boiler is a kind of heating equipment, and it is to utilize coal, oil or gas to be fuel, produces heat through burning and produces steam or hot water, and flue gas, slag that coal produces pollute the environment; The harm people health, and the processing of combustion technology and flue gas is comparatively complicated, and oil gas type fuel is easy to carry and use, and is guaranteeing under the good burning condition; Basically do not produce environmental pollution, calorific capacity is high, in recent years, because the fuel vapor boiler volume is little; Automaticity is high, and is easy for installation, obtained using widely; The a large amount of primary energy of urban heat supplying boiler consumption, the pollutant of amplification quantity side by side, the heating boiler of China is main with fire coal mainly traditionally.Along with the raising of urban life level,, use clean energy resource to become a kind of trend in order to improve urban air-quality; In the last few years, our country found and had exploited a large amount of natural gases, had set up the heavy construction of transfering natural gas from the west to the east; Some areas (like Beijing, Xi'an) are defined in the urban district is forbidden to set up the coal heating boiler again, and recommends energetically to use natural gas boiler, for fear of the back-end surfaces cold end corrosion; Traditional coal heating exhaust gas temperature is usually above 150 ℃; Steam boiler even be higher than 200 ℃ adopts after the natural gas, and present most of hot-water boiler exhaust gas temperatures are between 140～200 ℃.This has not only expended a large amount of energy; And improved the operating cost of boiler, and be the boiler of fuel with the natural gas, discharged flue gas has 150 ~ 250 ℃ of quite high temperature; It contains about 15% ~ 19% (volume) of steam, is the main carrier of flue gas heat.If the exhaust gas temperature of boiler is dropped to enough low level; The steam that is superheat state so in the flue gas will condense and emit the latent heat of vaporization; The boiler that makes the latent heat of vaporization in the flue gas be able to recycle is called condenser boiler; Traditional flue heat exchange relates to defectives such as having efficient is low, equipment is perishable, the untimely convenience of UTILIZATION OF VESIDUAL HEAT IN, causes boiler to use the decline of whole efficiency, has wasted a large amount of energy.
Summary of the invention
The present invention provides a kind of waterpipe type condensation superheated steam boiler that can abundant and conveniently utilize fume afterheat, permanent anti-flue gas corrosion timely.
Waterpipe type condensation superheated steam boiler provided by the present invention comprises body of heater, flue, superheater, in flue, is provided with two-stage heat-exchanger rig energy-saving appliance and condenser; Described energy-saving appliance is made up of gilled tube, and gilled tube adopts high-frequency induction welding technique, and tube side one end and the boiler internal of described energy-saving appliance link; The other end links with the feedwater softened water tank, and described condenser is made up of the ratio-frequency welding finned tube, and material adopts the ND steel; Described condenser heat exchanger tube adopts steel-aluminum composite fin tube; Housing adopts enamel anticorrosion, and described condenser tube side two ends and feedwater softened water tank UNICOM are to the heating that circulates of the water in the feedwater softened water tank.
The present invention is employed in energy-saving appliance and the heat exchange of condenser two-stage is set in the flue, can utilize smoke exhaust heat comparatively fully, can know that according to the steam partial pressure coefficient water dew point is generally at 56～60 ℃ in the flue gas; Through reducing flue-gas temperature to dew point with the refrigerant medium, reclaim the sensible heat and the latent heat of flue gas simultaneously, simultaneously since in the water vapor condensation process condensed water can absorb a part of pernicious gas such as SO2, NOx; Reduced the discharging of pollutant, helped environmental protection, for the steam boiler of 5t * h-1; Install before the condensed heat exchanger design efficiency additional and calculate h=88.01% by low heat valve, the raising of minimizing and boiler thermal output of using different load down smoke-discharging heat loss behind the condensed heat exchanger behind installation condensed heat exchanger 6% or more, about 650 m3 of natural gas of this stove actual saving every day; About 2.35 yuan of every cubic natural gas price lattice were then practiced thrift more than 1500 yuan in one day, and 1 year by operation calculating in 360 days; The then annual about 234000m3 of natural gas that saves amounts to about about 550,000 yuan of RMB, about 250,000 yuan of the cost of two-stage heat exchanger, Installation and Debugging expense and maintenance cost; Investment payback time is about 5 months; Another effect of flue gas condensing is the discharging that can reduce NOx, and this is on the one hand because the raising of the condenser boiler thermal efficiency has reduced the consumption of fuel; Reduced total release; Because condensate liquid to the absorption of NOx, has further reduced discharging again, can find out that the present invention has good economy and environmental benefit on the other hand; Energy-saving appliance among the present invention and condenser adopt resistant material to make, corrosion that can withstand long term exposure flue gas.
Description of drawings
Accompanying drawing 1 is a sketch map of the present invention.
Accompanying drawing 2 is working medium schematic flow sheets of the present invention.
The specific embodiment
In order to explain enforcement of the present invention more fully, specific embodiment of the present invention is provided, present embodiment only is to elaboration of the present invention and explanation, does not limit the scope of the invention.
Shown in accompanying drawing 1, this boiler can be that two drums are vertically arranged, the superheated steam boiler of full fin panel casing, D type burner hearth Natural Circulation, pressurized firing, and front wall is arranged burner; Fuel is turned back 90 ° and is got into convection bank after in burner hearth, fully burning, and the convection bank high temperature position is arranged horizontal superheater 6; Then be that low temperature convection bank flue gas flows into energy-saving appliance 3, condenser 4 from convection bank through flue, get into chimney then and discharge that burner hearth Hou Qiang position is provided with explosion proof door; Energy-saving appliance 3 is made up of gilled tube, and gilled tube is that high-frequency welding processes, and shell side one end of energy-saving appliance 3 links to each other with convection heating surface; The other end links to each other with the shell side of condenser 4, and tube side one end of energy-saving appliance 3 links to each other with boiler internal, and the other end links with feedwater softened water tank 5; Condenser 4 is used for further reducing exhaust gas temperature, and absorbs the latent heat of vaporization of steam in the tail flue gas, and the heating surface of condenser 4 mainly is made up of the ratio-frequency welding finned tube; Material is the ND steel, and the ND steel is that steel are used in optimal anti-sulfuric acid low temperature dew point corrosion at present, is used for being manufactured on the heat exchanger that high sulfur-containing smoke gas is on active service and has excellent acid corrosive nature, anti-chlorine ion corrosion performance; Can guarantee durable in usely, be a crucial cost point in the flue gas UTILIZATION OF VESIDUAL HEAT IN, and tube side one end of condenser 4 links to each other with feedwater softened water tank 5; The other end also links to each other with feedwater softened water tank 5, to the heating that circulates of the water in the softened water tank, has not only reduced exhaust gas temperature; Also reduced simultaneously the oxygen content of water in the water tank; Prolonged boiler life, energy-saving appliance 3 can be along row or stagger arrangement with condenser 4 interior gilled tubes and arranges, feedwater softened water tank 5 is set near boiler.
This condenser boiler is a full film type wall waterpipe type superheated steam boiler, and boiler is provided with burner hearth, convection heating surface, superheater 6, energy-saving appliance 3, condenser 4, according to the grade of heat energy; The fume afterheat cascade utilization has fully improved boiler efficiency, and tube side one end of energy-saving appliance 3 links to each other with softened water tank; The other end links to each other with boiler internal, and the higher water of temperature directly gets in the boiler and uses, and the tube side two ends of condenser 4 link to each other with feedwater softened water tank 5; To the heating that circulates of the water of feedwater in the softened water tank; Not only reduce exhaust gas temperature, also got rid of the part oxygen of water in the water tank simultaneously, improved boiler life.
This embodiment is for 5t * h
-1Steam boiler; Design efficiency is calculated h=88.01% by low heat valve before installing condensed heat exchanger additional; The minimizing of different load down smoke-discharging heat loss and the raising of boiler thermal output (are seeing the following form) more than 6% behind the use condensed heat exchanger; After condensed heat exchanger is installed, about 650 m of natural gas of this stove actual saving every day
3, every m
3About 2.35 yuan of Gas Prices was then practiced thrift more than 1500 yuan in one day, then saved about 234000 m of natural gas every year by operation calculating in 360 days in 1 year
3, amount to about about 550,000 yuan of RMB, about altogether 250,000 yuan of the cost of two-stage heat exchanger, Installation and Debugging expense and maintenance cost; Investment payback time is about 5 months, and another effect of flue gas condensing is the discharging that reduces NOx, and this is on the one hand because the raising of the condenser boiler thermal efficiency; Reduced the consumption of fuel; Reduced total release, on the other hand because condensate liquid to the absorption of NOx, has further reduced discharging again.
The present invention can significantly make boiler thermal output improve, and with about 10.3 NM3 of 1NM3 natural gas burning production theory exhaust gas volumn (approximately 12.5KG), is example with excess air coefficient 1.3; Produce flue gas 14 NM3 (approximately 16.6KG), get flue-gas temperature and be reduced to 70 ℃ for 200 ℃, emit the about 1600KJ of physics sensible heat; The water vapour condensation rate gets 50%, emits about 1850 KJ of the latent heat of vaporization, amounts to heat release 3450 KJ; Be 10% of natural gas low heat valve approximately, get into heat-energy recovering apparatus, can improve the heat energy utilization rate more than 8% if get 80% flue gas; It is nearly 10% to save gas fuel, does not need to establish in addition environmental protecting device.
After specifying embodiment of the present invention; The personage who is familiar with this technology can be well understood to; Do not break away from above-mentioned claim with spirit under can carry out various variations and modification; All foundations technical spirit of the present invention all belongs to the scope of technical scheme of the present invention to any simple modification, equivalent variations and modification that above embodiment did, and the present invention's embodiment of also not being subject in the specification to be given an actual example.
Claims (6)
1. waterpipe type condensation superheated steam boiler comprises body of heater (1), flue (2), superheater (6), it is characterized in that: in flue, be provided with two-stage heat-exchanger rig energy-saving appliance (3) and condenser (4).
2. waterpipe type condensation superheated steam boiler according to claim 1 is characterized in that: described energy-saving appliance (3) is made up of gilled tube, and gilled tube adopts high-frequency induction welding technique.
3. waterpipe type condensation superheated steam boiler according to claim 1 is characterized in that: tube side one end and the boiler internal of described energy-saving appliance (3) link, and the other end links with feedwater softened water tank (5).
4. waterpipe type condensation superheated steam boiler according to claim 1 is characterized in that: described condenser (4) is made up of the ratio-frequency welding finned tube, and material adopts the ND steel.
5. waterpipe type condensation superheated steam boiler according to claim 1 is characterized in that: described condenser (4) heat exchanger tube adopts steel-aluminum composite fin tube, and housing adopts enamel anticorrosion.
6. waterpipe type condensation superheated steam boiler according to claim 1 is characterized in that: described condenser (4) tube side two ends link with feedwater softened water tank (5), to the heating that circulates of the water of feedwater in the softened water tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102765121A CN102788342A (en) | 2012-08-06 | 2012-08-06 | Water tube type condensation superheated steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012102765121A CN102788342A (en) | 2012-08-06 | 2012-08-06 | Water tube type condensation superheated steam boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102788342A true CN102788342A (en) | 2012-11-21 |
Family
ID=47153830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012102765121A Pending CN102788342A (en) | 2012-08-06 | 2012-08-06 | Water tube type condensation superheated steam boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102788342A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047636A (en) * | 2013-01-08 | 2013-04-17 | 杨群峰 | Waste heat utilizing and energy saving device of low temperature smoke in sulfuric acid production |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273002A (en) * | 1991-04-10 | 1993-12-28 | Gadelius Sunrod Ab | Water tube boiler |
| JP2002323201A (en) * | 2002-03-22 | 2002-11-08 | Miura Co Ltd | Water tube boiler |
| CN2704789Y (en) * | 2004-05-11 | 2005-06-15 | 陈卫华 | Energy saver of condensing gas boiler |
| CN101936520A (en) * | 2010-08-16 | 2011-01-05 | 江苏双良锅炉有限公司 | Horizontal type oil-gas condensing steam boiler with energy saver and condenser arranged outside independently |
| CN202229164U (en) * | 2011-08-17 | 2012-05-23 | 安阳方快锅炉有限公司 | Condensing type steam boiler energy-saving heating device |
| CN202253560U (en) * | 2011-08-17 | 2012-05-30 | 安阳方快锅炉有限公司 | Integrated condensation steam boiler |
| CN202791953U (en) * | 2012-08-06 | 2013-03-13 | 安阳方快锅炉有限公司 | Water pipe type condensation superheating steam generator |
-
2012
- 2012-08-06 CN CN2012102765121A patent/CN102788342A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5273002A (en) * | 1991-04-10 | 1993-12-28 | Gadelius Sunrod Ab | Water tube boiler |
| JP2002323201A (en) * | 2002-03-22 | 2002-11-08 | Miura Co Ltd | Water tube boiler |
| CN2704789Y (en) * | 2004-05-11 | 2005-06-15 | 陈卫华 | Energy saver of condensing gas boiler |
| CN101936520A (en) * | 2010-08-16 | 2011-01-05 | 江苏双良锅炉有限公司 | Horizontal type oil-gas condensing steam boiler with energy saver and condenser arranged outside independently |
| CN202229164U (en) * | 2011-08-17 | 2012-05-23 | 安阳方快锅炉有限公司 | Condensing type steam boiler energy-saving heating device |
| CN202253560U (en) * | 2011-08-17 | 2012-05-30 | 安阳方快锅炉有限公司 | Integrated condensation steam boiler |
| CN202791953U (en) * | 2012-08-06 | 2013-03-13 | 安阳方快锅炉有限公司 | Water pipe type condensation superheating steam generator |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103047636A (en) * | 2013-01-08 | 2013-04-17 | 杨群峰 | Waste heat utilizing and energy saving device of low temperature smoke in sulfuric acid production |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202747320U (en) | Air cooling type efficient fuel or gas condensing boiler | |
| CN203771380U (en) | Condensation waste heat recovery steam boiler | |
| CN202253560U (en) | Integrated condensation steam boiler | |
| CN202902620U (en) | Integral center back-draft type condensate bearing hot water furnace | |
| CN203068991U (en) | Combined waste heat utilization heat pipe waste heat boiler | |
| CN202791953U (en) | Water pipe type condensation superheating steam generator | |
| CN102183088A (en) | Condensing hot-water boiler with external condensers | |
| CN203286582U (en) | Boiler air preheating device | |
| CN110986031B (en) | System for avoiding water vapor condensation in gas boiler flue gas recirculation pipeline | |
| CN205980320U (en) | Hanging is secondary condensing heat exchanger for stove | |
| CN202057049U (en) | Condensation hot water boiler with externally-arranged condensers | |
| CN204880066U (en) | Large -scale module high -efficient condensing gas steam boiler that gets ready | |
| CN103363663B (en) | Heavy die block assembling high-efficiency condensing type gas-fired water heating boiler | |
| CN202792536U (en) | Water pipe type condensation hot water boiler | |
| CN102788343A (en) | Water tube type condensation and saturation steam boiler | |
| CN201628502U (en) | Vacuum heat-pipe fuel gas waste heat recovery device | |
| CN110145754A (en) | It can prevent the boiler flue gas treatment system and method for back-end surfaces low-temperature corrosion | |
| CN202630747U (en) | Waste heat recovery system capable of improving efficiency of electric dust collector | |
| CN102788427A (en) | Water pipe-type condensate hot-water boiler | |
| CN202791952U (en) | Water pipe type condensation saturation steam generator | |
| CN104501397A (en) | Membrane water-wall compound return water condensing type natural gas hot water boiler | |
| CN102788342A (en) | Water tube type condensation superheated steam boiler | |
| CN203642148U (en) | Combined boiler for saturated vapor | |
| CN205279448U (en) | Full premix condensation boiler | |
| CN103245058B (en) | Micro-positive pressure combustion combined cooling energy-saving boiler |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121121 |