CN102563680A - Boiler flue gas evaporating and cooling device - Google Patents
Boiler flue gas evaporating and cooling device Download PDFInfo
- Publication number
- CN102563680A CN102563680A CN2012100311181A CN201210031118A CN102563680A CN 102563680 A CN102563680 A CN 102563680A CN 2012100311181 A CN2012100311181 A CN 2012100311181A CN 201210031118 A CN201210031118 A CN 201210031118A CN 102563680 A CN102563680 A CN 102563680A
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- flue
- condenser
- flue gas
- tube
- flue tube
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- 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
- Y02E20/30—Technologies for a more efficient combustion or heat usage
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Abstract
The invention discloses a boiler flue gas evaporating and cooling device which comprises a condenser, a flue gas outlet, a flue gas inlet, an evaporator, a flue tube, a pressure pump, a steam pipe, a return tube and a gas-water separator. The evaporator is arranged on the wall of the flue tube; the condenser is arranged above the flue tube and connected with the evaporator through the pressure pump; the pressure pump and the condenser are connected through the steam pipe; the condenser and the evaporator are connected through the return tube; and the gas-water separator and the flue tube are connected and arranged at the outlet of the flue tube. The boiler flue gas evaporating and cooling device can form a self-circulating system through the mode, is simple in structure and is easy to control, has high heat exchange efficiency, is thorough in flue gas condensation, has good corrosion-resisting property, prolongs the service life and reduces discharged contaminant.
Description
Technical field
The present invention relates to the boiler energy-saving field, particularly relate to a kind of boiler smoke evaporation-cooled device.
Background technology
The flue-gas temperature of the discharge of fuel oil, combustion gas, biomass-burning, coal-burning boiler is higher, and generally all more than 150 ℃, steam boiler particularly manyly surpasses 200 ℃, and these fuel combustions all produce a large amount of steam, make flue gas carry a large amount of latent heats of vaporization.The direct discharging of high-temperature flue gas is the clean energy resource of the preciousness of waste greatly, has increased pollutant emission simultaneously, the harm ecological environment.For solving this type of problem, flue gas energy recovery technology has been proposed, heat exchanger promptly is set in flue, utilize high-temperature flue gas to add hot water or air, thereby reduce flue-gas temperature, make the water vapor condensation in the flue gas discharge the latent heat of vaporization, improve equipment thermal efficiency.
At present, domestic general employing finned tube or heat pipe be as heat exchanger, and further absorb the heat in the flue gas with cooling water.But the dew point of steam is lower in the flue gas, generally below 60 ℃, reclaim this part heat and must overcome the little restriction of heat transfer temperature difference; And finned tube and heat pipe can only drop to flue-gas temperature about 80 ℃ because heating surface area and heat exchange efficiency are limited, can't reach the effect of condensation flue gas water vapour; Simultaneously, when water temperature in the heat exchanger is lower than the flue gas dew point temperature, condensation will be arranged; Condensed water is acid and is dissolved with more oxygen and carbon dioxide, and heat exchanger is generally metallic article, so condensed water will have the obvious corrosion effect to equipment; If contain sulphur in the flue gas, the corrosion situation can be more serious, so the service life of equipment is short, maintenance cost is high.
Summary of the invention
The technical problem that the present invention mainly solves be the flue gas condenser life-span short, heat transfer property is bad, cooling effect is poor, and a kind of boiler smoke evaporation-cooled device is provided, its service life is long, heat transfer property is better and cooling effect is good.
For solving the problems of the technologies described above; The technical scheme that the present invention adopts is: a kind of boiler smoke evaporation-cooled device is provided; Comprise: condenser, flue tube, exhanst gas outlet and smoke inlet, said device also comprises: evaporimeter, compression pump, steam pipe, return duct and moisture trap, said evaporimeter are arranged on the flue tube wall; Said condenser places the flue tube top and is connected with evaporimeter through compression pump; Be connected through steam pipe between said compression pump and the condenser, connect through return duct between said condenser and the evaporimeter, said moisture trap links to each other with flue tube and places the flue tube exit.
In preferred embodiment of the present invention, be filled with evaporative cooling medium in the said evaporimeter.
In preferred embodiment of the present invention, said condenser is a fin structure.
In preferred embodiment of the present invention, the boiling temperature of said evaporative cooling medium is corresponding with the dew-point temperature of steam in the flue gas.
In preferred embodiment of the present invention, said flue tube adopts resistant material to process, or smears one deck anticorrosive at the inboard tube wall of flue tube.
In preferred embodiment of the present invention, said device can be applied in the field of boilers of burning coal, oil, natural gas and living beings.
The invention has the beneficial effects as follows:
1, this cooling device can form self circulatory system, and the evaporated condensation water retracting device can not cause a large amount of wastes of water resource, and is simple in structure, easy to control;
2, the condenser contact area is big, and heat exchange efficiency is high, and flue gas condensing is thorough;
3, decay resistance is better.
4, reduced the discharging of pollutant.
Description of drawings
Fig. 1 is the structural representation of boiler smoke evaporation-cooled device one preferred embodiment of the present invention;
The mark of each parts is following in the accompanying drawing: 1, condenser, 2, smoke inlet, 3, exhanst gas outlet, 4, flue tube, 5, evaporimeter, 51, evaporative cooling medium, 6, compression pump, 7, steam pipe, 8, moisture trap, 9, return duct.
The specific embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
See also Fig. 1; The embodiment of the invention comprises: condenser 1, flue tube 4, exhanst gas outlet 3, smoke inlet 2, evaporimeter 5 and moisture trap 8, and flue tube 4 one edge joint smoke inlets 2, another side is connected to exhanst gas outlet through moisture trap 8; Flue tube 4 tops are provided with condenser 1; Condenser 1 one ends connect compression pump 6 through steam pipe 7, and compression pump 6 connects flue tube 4 through steam pipe 7, and condenser 1 connects fume pipe through return duct 9.
Be filled with evaporative cooling medium 51 in the evaporimeter 5, through the pressure and temperature of control in the evaporimeter 5, the boiling point of adjustment evaporative cooling medium 51 is corresponding with the dew-point temperature of steam in the flue gas, makes the rapid condensation of steam in the flue gas.
Condenser 1 adopts fin structure, has increased the cooling contact area, and heat transfer efficiency is better.
Flue tube 4 adopts resistant material to process, or smears one deck anticorrosive at flue tube 4 inboard tube walls, can effectively prevent the erosion of acid condensate water, has prolonged the service life of equipment.
Be different from prior art, the present invention adopts evaporation cooling technique that boiler smoke is carried out condensation process, makes that the steam in the flue gas arrives dew point rapidly, thereby rapid condensation takes place, and cooling effect is better; Smoke outlet is provided with moisture trap, further absorbs the moisture in the flue gas, only lets gas discharge, and has reduced environmental pollution.
The course of work of the present invention is following: the steam-laden flue gas that the equipment of fire coal, oil, gas or living beings produces is earlier through dirt pocket; The back gets in the flue tube 4 from smoke inlet 2, and the evaporative cooling medium 51 in the evaporimeter 5 is vaporized rapidly after having absorbed the heat in the flue gas, takes away the heat in the flue gas; Cooled flue gas; Medium 51 vaporization backs get into condenser 1 through steam pipe 7 under the effect of compression pump 6,, circulate so repeatedly after return duct 9 turns back to again in the evaporimeter 5 through condenser 1 cooling; Make flue gas reach good cooling effect, cooled smoke is discharged outdoor through moisture trap 9.
The above is merely embodiments of the invention; Be not so limit claim of the present invention; Every equivalent structure or equivalent flow process conversion that utilizes specification of the present invention and accompanying drawing content to be done; Or directly or indirectly be used in other relevant technical fields, all in like manner be included in the scope of patent protection of the present invention.
Claims (6)
1. boiler smoke evaporation-cooled device; Comprise: condenser, exhanst gas outlet and smoke inlet; It is characterized in that said device also comprises: evaporimeter, flue tube, compression pump, steam pipe, return duct and moisture trap, said evaporimeter are arranged on the flue tube wall; Said condenser places the flue tube top and is connected with evaporimeter through compression pump; Be connected through steam pipe between said compression pump and the condenser, connect through return duct between said condenser and the evaporimeter, said moisture trap links to each other with flue tube and places the flue tube exit.
2. boiler smoke evaporation-cooled device according to claim 1 is characterized in that, is filled with evaporative cooling medium in the said evaporimeter.
3. boiler smoke evaporation-cooled device according to claim 1 is characterized in that, said condenser is a fin structure.
4. boiler smoke evaporation-cooled device according to claim 2 is characterized in that the boiling temperature of said evaporative cooling medium is corresponding with the dew-point temperature of steam in the flue gas.
5. boiler smoke evaporation-cooled device according to claim 3 is characterized in that, said flue tube adopts resistant material to process, or smears one deck anticorrosive at the inboard tube wall of flue tube.
6. boiler smoke evaporation-cooled device according to claim 1 is characterized in that, said device can be applied in the field of boilers of burning coal, oil, natural gas and living beings.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100311181A CN102563680A (en) | 2012-02-13 | 2012-02-13 | Boiler flue gas evaporating and cooling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012100311181A CN102563680A (en) | 2012-02-13 | 2012-02-13 | Boiler flue gas evaporating and cooling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102563680A true CN102563680A (en) | 2012-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012100311181A Pending CN102563680A (en) | 2012-02-13 | 2012-02-13 | Boiler flue gas evaporating and cooling device |
Country Status (1)
| Country | Link |
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| CN (1) | CN102563680A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728853A (en) * | 2015-03-31 | 2015-06-24 | 柳州凯通机械有限公司 | Boiler flue gas cooler |
| CN107355992A (en) * | 2017-08-17 | 2017-11-17 | 山东大学 | A kind of double low-temperature receiver gas fired-boiler Latent heat advanced recycling systems and method |
| CN109708134A (en) * | 2018-12-29 | 2019-05-03 | 浙江浙能乐清发电有限责任公司 | Pilot-plant is combined in a kind of recycling of flue gas moisture, UTILIZATION OF VESIDUAL HEAT IN and gas cleaning |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110561Y (en) * | 2007-11-15 | 2008-09-03 | 沈国华 | Boiler smoke exhaust waste heat recycling energy-saving device |
| CN102022746A (en) * | 2009-09-16 | 2011-04-20 | Bha控股公司 | Power plant emissions control using integrated organic rankine cycle |
| CN202024347U (en) * | 2011-03-09 | 2011-11-02 | 南京华电节能环保设备有限公司 | Boiler low-temperature flue gas waste heat recovery plant |
| CN102444900A (en) * | 2011-11-30 | 2012-05-09 | 辽宁赛沃斯节能技术有限公司 | Coal power plant controllable type heat pipe flue gas waste heat recovery system and method |
| CN202675331U (en) * | 2012-02-13 | 2013-01-16 | 郭丰亮 | Smoke evaporation-cooled device for boiler |
-
2012
- 2012-02-13 CN CN2012100311181A patent/CN102563680A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201110561Y (en) * | 2007-11-15 | 2008-09-03 | 沈国华 | Boiler smoke exhaust waste heat recycling energy-saving device |
| CN102022746A (en) * | 2009-09-16 | 2011-04-20 | Bha控股公司 | Power plant emissions control using integrated organic rankine cycle |
| CN202024347U (en) * | 2011-03-09 | 2011-11-02 | 南京华电节能环保设备有限公司 | Boiler low-temperature flue gas waste heat recovery plant |
| CN102444900A (en) * | 2011-11-30 | 2012-05-09 | 辽宁赛沃斯节能技术有限公司 | Coal power plant controllable type heat pipe flue gas waste heat recovery system and method |
| CN202675331U (en) * | 2012-02-13 | 2013-01-16 | 郭丰亮 | Smoke evaporation-cooled device for boiler |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104728853A (en) * | 2015-03-31 | 2015-06-24 | 柳州凯通机械有限公司 | Boiler flue gas cooler |
| CN107355992A (en) * | 2017-08-17 | 2017-11-17 | 山东大学 | A kind of double low-temperature receiver gas fired-boiler Latent heat advanced recycling systems and method |
| CN109708134A (en) * | 2018-12-29 | 2019-05-03 | 浙江浙能乐清发电有限责任公司 | Pilot-plant is combined in a kind of recycling of flue gas moisture, UTILIZATION OF VESIDUAL HEAT IN and gas cleaning |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20120711 |