CN105277027A - Phase-change heat exchanger and heat exchange method thereof - Google Patents
Phase-change heat exchanger and heat exchange method thereof Download PDFInfo
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- CN105277027A CN105277027A CN201510745772.2A CN201510745772A CN105277027A CN 105277027 A CN105277027 A CN 105277027A CN 201510745772 A CN201510745772 A CN 201510745772A CN 105277027 A CN105277027 A CN 105277027A
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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 phase-change heat exchanger and a heat exchange method thereof. The heat exchanger is composed of a condensation chamber above and an evaporation chamber below. A steam package is arranged in the condensation chamber, and a valve bank is arranged on the top of the condensation chamber and connected with the steam package so that closed-loop control can be carried out over the lowest temperature of a heated metal wall face in a system; a plurality of straight tubes are distributed in the evaporation chamber, the top end of the evaporation chamber is communicated with one end of the steam package through a condensation water pipe, the bottom end of the evaporation chamber is communicated with the other end of the steam package through a steam raising pipe, and a loop is formed between the condensation chamber and the evaporation chamber. The heat exchanger is matched with an economizer in a power station boiler to recycle smoke waste heat and carry out circulating phase-change heat exchange. By means of the phase-change heat exchanger and the heat exchange method thereof, smoke exhaust temperature can be greatly lowered, and meanwhile smoke waste heat is fully used. Besides, the temperature of the heated metal wall face is further kept on a high temperature level, so that the heated metal wall face is far away from a dew point corrosion area of acid. Thus, the corrosion phenomenon is avoided, and use reliability of equipment is improved.
Description
Technical field
The invention belongs to heat energy field, relate to a kind of phase-change heat-exchanger and heat-exchange method thereof that utilize flue gas waste heat recovery, be mainly used in the economizer in station boiler.
Background technology
At present, flue gas waste heat recovery for station boiler has obtained to be studied widely and utilizes, in, low temperature exhaust heat energy level is lower, heat transfer efficiency is lower, current most low temperature exhaust heat directly emits, cause energy waste, therefore the exploitation of the fume afterheat aspect of booster injection centering, low temperature.
For in, low-temperature flue gas waste heat be generally utilize air preheater, economizer adds hot-air and feedwater, also may be used for heated material etc.First economizer is mainly with absorbing the heat of low-temperature flue gas to reduce delivery temperature, secondly first feedwater heats in economizer, thus reduces the uptake of water in evaporating heating surface, again improves the feed temperature entering bubble, reduce the temperature difference between feedwater and bubble, reduce bubble thermal stress.Economizer is requisite heat exchange element in boiler.
The main starting point improving boiler thermal output is from reduction flue gas loss and reduces exhaust gas temperature, but reduce exhaust gas temperature and may cause cold end corrosion problem, after delivery temperature reduces, there is the sulfuric acid condensed out in heat exchanger surface, produce corrosive effect, will the heat exchange efficiency of heat exchanger be badly influenced.
In current station boiler, main employing is light pipe economizer, and also have and adopt extended surface tube, gilled tube and membrane type structure economizer, although heat-transfer effect improves, anticorrosion ability makes moderate progress, and processing is also inconvenient.
Hot pipe technique has achieved significant effect in each field in augmentation of heat transfer, early 1990s, adopt the air preheater of heat exchange of heat pipe once once extensively to promote, single heat pipe utilizes automatic control technology, change and flow through condensation segment hot working fluid flow, regulate heat pipe wall temperature.But heat exchange of heat pipe in practical work process is mainly assembled by many heat pipes, there is manufacturing variation each other, position is also different, therefore the wall temperature of heat pipe is not on all four, temperature regulates and has difficulties, reduce the heat exchange property of heat pipe, time to a certain extent, heat transfer efficiency sharply descends general who has surrendered to cause heat exchanger to scrap, and the manufacture maintenance cost of heat pipe is huge.
Summary of the invention
For above-mentioned prior art problem, the invention provides a kind of phase-change heat-exchanger and heat-exchange method thereof, in conjunction with Figure of description, technical scheme is as follows:
A kind of phase-change heat-exchanger, match with the economizer in station boiler Mist heat recovering, and described heat exchanger is made up of the condensation chamber of top and the vaporization chamber of below;
Be provided with drum 2 in described condensation chamber, condensation chamber top arranges valve sets and is connected with drum 2, realizes carrying out closed-loop control to the minimum temperature of wall metal heated in system;
Some straight tubes 9 are furnished with in described vaporization chamber, its top is by condensate pipe 12 and described drum 2 one end UNICOM, its bottom is by vapor uptake 8 and described drum 2 other end UNICOM, straight tube 9 is built with cooling medium, form loop between condensation chamber and vaporization chamber, and vaporization chamber bottom is provided with blowoff valve 11.
Described valve sets is connected to form along pipeline successively by needle valve 3, venting ball valve 4, hot water gauge 5 and water filling ball valve 6, and described needle valve 3 is connected with drum 2, and described water filling ball valve 6 is connected in parallel on drum 2 outlet pipeline.
Described straight tube 9 takes the mode of Heterogeneous Permutation to be distributed in vaporization chamber.
The outside of described straight tube 9 is evenly distributed with annular fin.
Described annular fin and the angle of straight tube 9 straight down between direction are 30 degree to 45 degree.
The described cooling medium be contained in straight tube 9 is air, condensed water or conduction oil.
A heat-exchange method for phase-change heat-exchanger, by reclaiming the fume afterheat in station boiler, carry out circulating phase-change heat exchange, concrete steps are as follows:
(1) water filling is prepared: open blowoff valve 11, put dry by heat exchanger internal water;
(2) water filling: regulate condensation chamber top valve sets, water filling is carried out to drum;
(3) be vented: close drum 2 after water filling, be heated in straight tube 9 generation steam, regulate condensation chamber top valve sets, start exhaust;
(4) regulate wall temperature: after exhaust terminates, regulate condensation chamber top valve sets, control the inflow of drum 2, make the temperature of metal heated wall in system remain on about 105 DEG C and fluctuate.
Described in step (2) to (4), valve sets is connected to form along pipeline successively by needle valve 3, venting ball valve 4, hot water gauge 5 and water filling ball valve 6, described needle valve 3 is connected with drum 2, and described water filling ball valve 6 is connected in parallel on drum 2 outlet pipeline;
The injecting process is in described step (2): close venting ball valve 4 and blowoff valve 11, opens needle valve 3 and water filling ball valve 6 starts water filling;
In described step (3), exhaust process is: after water filling, close drum 2 and water filling ball valve 6, and open needle valve 3 and venting ball valve 4, be heated in straight tube 9 generation steam, and venting ball valve 4 starts exhaust;
In described step (4), the process of adjustment wall temperature is: after exhaust terminates, and first closes needle valve 3, then closes venting ball valve 4, exhaust terminates, regulate water filling ball valve 6, control the inflow of drum 2, make the temperature of metal heated wall in system remain on about 105 DEG C and fluctuate.
Compared with prior art, beneficial effect of the present invention is:
1, the present invention significantly can reduce smog discharge temperature, and fume afterheat is fully used simultaneously, and exhaust gas temperature is floated between 100-120 DEG C;
2, the present invention is while reduction exhaust gas temperature, keeps metal heated wall surface temperature to be in higher temperature levels, makes it away from the dew point corrosion region of acid, thus avoid the generation of corrosion phenomenon, improve equipment use reliability;
3, the present invention can make the lowermost wall surface temperature of metal heated be in adjustable controllable state, makes the flow of phase-change heat-exchanger have certain controlled ability, thus makes exhaust gas temperature and wall surface temperature ensure relatively stable;
4, the present invention can be suitable in the boiler plant of different load different fuel, easily applies.
Accompanying drawing explanation
Fig. 1 is the structural representation of phase-change heat-exchanger of the present invention;
Fig. 2 is the distribution schematic diagram of straight tube in phase-change heat-exchanger of the present invention;
Fig. 3 is the structural representation of straight tube in phase-change heat-exchanger of the present invention;
Fig. 4 a is the schematic enlarged-scale view of fin on straight tube in phase-change heat-exchanger of the present invention;
Fig. 4 b is the top view of Fig. 4 a.
In figure:
1-water intaking valve, 2-drum, 3-needle valve, 4-exits ball valve, 5-hot water gauge, 6-water filling ball valve, 7-outlet valve, 8-vapor uptake, 9-straight tube, 10-annular fin, 11-blowoff valve, 12-condensation down-comer.
Detailed description of the invention
In order to set forth technical scheme of the present invention further, in conjunction with Figure of description, the specific embodiment of the present invention is as follows:
The heat transfer theory of phase-change heat-exchanger provided by the invention is similar to heat pipe, can regard large-scale heat pipe as.Primarily of vaporization chamber and condensation chamber two parts composition, the straight tube of some quantity is arranged in vaporization chamber, straight tube is built with intermediate cooling medium, in, low-temperature flue gas flows through region in the middle of vaporization chamber and straight tube, condensation chamber is built with condensate pipe 12, arrange multiple valve at condensation chamber top, phase-change heat-exchanger concrete structure of the present invention is as follows:
As shown in Figure 1, condensation chamber is positioned at top, is inside provided with drum 2, and vaporization chamber is positioned at below, and inside is distributed with many straight tubes 9, and straight tube 9 is built with intermediate cooling medium, and cooling medium can be applicable to the medium of technique for air, condensed water, heat conduction wet goods.Straight tube 9 top is by condensate pipe 12 and drum 2 one end UNICOM, straight tube 9 bottom vapor uptake 8 and described drum 2 other end UNICOM, when the straight tube 9 that flue gas skims over vaporization chamber restrains outside, cooling medium boiling in straight tube 9 is vaporizated into saturated steam, the cooling medium flowed through in condenser pipe is heated, and discharges gasification latent heat heating working medium simultaneously.Saturation water drops in vaporization chamber and is again heated, and so circulation is carried out, and carries out phase-change heat-exchange.
As shown in Figure 2, straight tube 9 takes Heterogeneous Permutation form in vaporization chamber, and the length of vaporization chamber is L, width is W, horizontal range between adjacent straight tube 9 is 0.125L, and vertically distance is 0.09W, and its concrete distribution scheme suitably can also adjust in conjunction with the structure of heat exchanger.
As shown in Figure 3, the outside of straight tube 9 is dispersed with annular fin 10 uniformly, plays the effect of augmentation of heat transfer.As shown in figures 4 a and 4b, have certain angle between fin 10 and straight tube 9, annular fin and the angle of straight tube 9 straight down between direction are 30 degree to 45 degree such objects is prevent the dust in flue gas to be accumulated on fin 10.
Condensation chamber top of the present invention is provided with valve sets, carries out phase transformation by Flow-rate adjustment, realizes lowermost wall surface temperature in whole system and carries out closed-loop control, for after the dew-point temperature change that different ature of coal may cause, controllable to wall temperature.Under the prerequisite ensureing equipment safety operation, realize amplitude peak Mist heat recovering.
As shown in Figure 1, this valve sets is connected to form along pipeline successively by needle valve 3, venting ball valve 4, hot water gauge 5 and water filling ball valve 6, and described needle valve 3 is connected with drum 2, and described water filling ball valve 6 is connected in parallel on drum 2 outlet pipeline.By the flow of the controlled cooling model medium of water intaking valve 1 and outlet valve 7, thus realize the effect controlling metallic walls surface temperature.
Drum 2 is for storing cooling medium, ensure that boiler has sufficient cooling medium to carry out phase-change heat-exchange in running, simultaneously in phase-change heat-exchange process, heated vapor enters drum along tedge, be cooled to liquid through condensation chamber, and get back to vaporization chamber along down-comer.
Cooling medium answers the flow of Real-Time Monitoring cooling medium in flow process, ensures that flue gas works always in rational working range.
Venting ball valve 4, water filling ball valve 6 and needle valve 3 play the effect of auxiliary adjustment cooling medium consumption.
Be specifically described below in conjunction with the heat-exchange method of accompanying drawing to covert heat exchanger of the present invention, detailed process is as follows:
(1) water filling is prepared: open the blowoff valve 11 in vaporization chamber, put dry by the water of inside, before drum 2 is intake, record hot water gauge 5 numerical value
(2) water filling: water filling also can be carried out in boiler running process under blowing out state.Close venting ball valve 4 and blowoff valve 11, open needle valve 3 and water filling ball valve 6, start water filling.Close water filling ball valve 6 after reaching waterflooding requirement, open venting ball valve 4 simultaneously immediately.
(3) be vented: after stopping water filling, be exhausted after closing drum 2 and water filling ball valve 6.Open needle valve 3 and venting ball valve 4, under producing the impact of steam after being heated in phase transformation straight tube, venting ball valve 4 has gas to discharge, and namely starts exhaust.
(4) regulate wall temperature: after continuing venting a period of time, first close needle valve 3, then close venting ball valve 4, exhaust terminates.After exhaust terminates, self-con-tained unit regulates temperature automatically, and wherein automatic regulating valve controls the inflow entering drum 2, makes wall temperature remain on about 105 DEG C and fluctuates.Guarantee equipment runs at nominal conditions.
Note suitably to open large water intaking valve 1 in exhaust process, ensure that exhaust outlet does not produce negative pressure, wall temperature is advisable at 105 DEG C-115 DEG C, wall temperature can not more than 120 DEG C.
Claims (8)
1. a phase-change heat-exchanger, match with the economizer in station boiler Mist heat recovering, it is characterized in that: described heat exchanger is made up of the condensation chamber of top and the vaporization chamber of below;
Be provided with drum (2) in described condensation chamber, condensation chamber top arranges valve sets and is connected with drum (2), realizes carrying out closed-loop control to the minimum temperature of wall metal heated in system;
Some straight tubes (9) are furnished with in described vaporization chamber, its top is by condensate pipe (12) and described drum (2) one end UNICOM, its bottom is by vapor uptake (8) and described drum (2) other end UNICOM, straight tube (9) is built with cooling medium, form loop between condensation chamber and vaporization chamber, and vaporization chamber bottom is provided with blowoff valve (11).
2. a kind of phase-change heat-exchanger as claimed in claim 1, it is characterized in that: described valve sets is connected to form along pipeline successively by needle valve (3), venting ball valve (4), hot water gauge (5) and water filling ball valve (6), described needle valve (3) is connected with drum (2), and described water filling ball valve (6) is connected in parallel on drum (2) outlet pipeline.
3. a kind of phase-change heat-exchanger as claimed in claim 1, is characterized in that: described straight tube (9) takes the mode of Heterogeneous Permutation to be distributed in vaporization chamber.
4. a kind of phase-change heat-exchanger as described in claim 1 or 3, is characterized in that: the outside of described straight tube (9) is evenly distributed with annular fin.
5. a kind of phase-change heat-exchanger as claimed in claim 4, is characterized in that: described annular fin and the angle of straight tube (9) straight down between direction are 30 degree to 45 degree.
6. a kind of phase-change heat-exchanger as claimed in claim 1, is characterized in that: the described cooling medium be contained in straight tube (9) is air, condensed water or conduction oil.
7. a heat-exchange method for phase-change heat-exchanger as claimed in claim 1, by reclaiming the fume afterheat in station boiler, carry out circulating phase-change heat exchange, concrete steps are as follows:
(1) water filling is prepared: open blowoff valve (11), put dry by heat exchanger internal water;
(2) water filling: regulate condensation chamber top valve sets, water filling is carried out to drum;
(3) be vented: close drum (2) after water filling, be heated in straight tube (9) generation steam, regulate condensation chamber top valve sets, start exhaust;
(4) regulate wall temperature: after exhaust terminates, regulate condensation chamber top valve sets, control the inflow of drum (2), make the temperature of metal heated wall in system remain on about 105 DEG C and fluctuate.
8. the heat-exchange method of a kind of phase-change heat-exchanger as claimed in claim 7, it is characterized in that: described in step (two) to (four), valve sets is connected to form along pipeline successively by needle valve (3), venting ball valve (4), hot water gauge (5) and water filling ball valve (6), described needle valve (3) is connected with drum (2), and described water filling ball valve (6) is connected in parallel on drum (2) outlet pipeline;
In described step (two), the injecting process is: close venting ball valve (4) and blowoff valve (11), opens needle valve (3) and water filling ball valve (6) beginning water filling;
In described step (three), exhaust process is: after water filling, close drum (2) and water filling ball valve (6), open needle valve (3) and venting ball valve (4), be heated in straight tube (9) generation steam, and venting ball valve (4) starts exhaust;
In described step (four), the process of adjustment wall temperature is: after exhaust terminates, first close needle valve (3), then venting ball valve (4) is closed, exhaust terminates, regulate water filling ball valve (6), control the inflow of drum (2), make the temperature of metal heated wall in system remain on about 105 DEG C and fluctuate.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510745772.2A CN105277027A (en) | 2015-11-05 | 2015-11-05 | Phase-change heat exchanger and heat exchange method thereof |
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| CN201510745772.2A CN105277027A (en) | 2015-11-05 | 2015-11-05 | Phase-change heat exchanger and heat exchange method thereof |
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345656A (en) * | 2017-08-08 | 2017-11-14 | 北京尤科恩环保工程有限公司 | A kind of steam raising plant using residual heat from boiler fume |
| CN108469192A (en) * | 2018-04-04 | 2018-08-31 | 北京巴布科克·威尔科克斯有限公司 | A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas |
| CN109737447A (en) * | 2019-01-21 | 2019-05-10 | 广东双燃节能环保科技有限公司 | A kind of boiler heat-energy recovery system |
| CN109945665A (en) * | 2019-03-28 | 2019-06-28 | 中国科学院力学研究所 | A kind of low CO concentration smoke catalytic burning and regeneration sensible heat recovery method and system |
| CN110425726A (en) * | 2019-07-05 | 2019-11-08 | 重庆佳威厨房设备有限公司 | A kind of energy-saving type boiler |
| CN110701780A (en) * | 2019-10-09 | 2020-01-17 | 夏登明 | Gas boiler |
| CN110887228A (en) * | 2019-10-17 | 2020-03-17 | 安徽尚亿锅炉有限公司 | Automatic feeding biomass particle generator |
| CN110887227A (en) * | 2019-10-17 | 2020-03-17 | 安徽尚亿锅炉有限公司 | Boiler with waste heat recovery function |
| CN108469192B (en) * | 2018-04-04 | 2024-06-04 | 北京巴布科克·威尔科克斯有限公司 | Heat exchanger and heat exchange system for heat exchange between steam drum and high-temperature gas |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078033A (en) * | 1992-04-23 | 1993-11-03 | 杨本洛 | Complex phase-change heat exchanger |
| CN2368001Y (en) * | 1999-04-23 | 2000-03-08 | 杨本洛 | Integrated heat-pipe type compound phase transition heat exchanger |
| CN101881436A (en) * | 2010-08-11 | 2010-11-10 | 黑龙江省电力科学研究院 | Separate low pressure coal economizer of elliptical fin heat pipe |
| CN102345997A (en) * | 2011-09-29 | 2012-02-08 | 熊泽宇 | Dew point corrosion resistant method for flue gas heat exchanger |
| CN203432423U (en) * | 2013-07-17 | 2014-02-12 | 宝钢发展有限公司 | Smoke composite heat exchanger with variable load |
| CN103900410A (en) * | 2014-04-02 | 2014-07-02 | 杭州国电机械设计研究院有限公司 | Phase-change heat transfer device and heat transfer method thereof |
-
2015
- 2015-11-05 CN CN201510745772.2A patent/CN105277027A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1078033A (en) * | 1992-04-23 | 1993-11-03 | 杨本洛 | Complex phase-change heat exchanger |
| CN2368001Y (en) * | 1999-04-23 | 2000-03-08 | 杨本洛 | Integrated heat-pipe type compound phase transition heat exchanger |
| CN101881436A (en) * | 2010-08-11 | 2010-11-10 | 黑龙江省电力科学研究院 | Separate low pressure coal economizer of elliptical fin heat pipe |
| CN102345997A (en) * | 2011-09-29 | 2012-02-08 | 熊泽宇 | Dew point corrosion resistant method for flue gas heat exchanger |
| CN203432423U (en) * | 2013-07-17 | 2014-02-12 | 宝钢发展有限公司 | Smoke composite heat exchanger with variable load |
| CN103900410A (en) * | 2014-04-02 | 2014-07-02 | 杭州国电机械设计研究院有限公司 | Phase-change heat transfer device and heat transfer method thereof |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107345656A (en) * | 2017-08-08 | 2017-11-14 | 北京尤科恩环保工程有限公司 | A kind of steam raising plant using residual heat from boiler fume |
| CN108469192A (en) * | 2018-04-04 | 2018-08-31 | 北京巴布科克·威尔科克斯有限公司 | A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas |
| CN108469192B (en) * | 2018-04-04 | 2024-06-04 | 北京巴布科克·威尔科克斯有限公司 | Heat exchanger and heat exchange system for heat exchange between steam drum and high-temperature gas |
| CN109737447A (en) * | 2019-01-21 | 2019-05-10 | 广东双燃节能环保科技有限公司 | A kind of boiler heat-energy recovery system |
| CN109945665A (en) * | 2019-03-28 | 2019-06-28 | 中国科学院力学研究所 | A kind of low CO concentration smoke catalytic burning and regeneration sensible heat recovery method and system |
| CN110425726A (en) * | 2019-07-05 | 2019-11-08 | 重庆佳威厨房设备有限公司 | A kind of energy-saving type boiler |
| CN110701780A (en) * | 2019-10-09 | 2020-01-17 | 夏登明 | Gas boiler |
| CN110887228A (en) * | 2019-10-17 | 2020-03-17 | 安徽尚亿锅炉有限公司 | Automatic feeding biomass particle generator |
| CN110887227A (en) * | 2019-10-17 | 2020-03-17 | 安徽尚亿锅炉有限公司 | Boiler with waste heat recovery function |
| CN110887227B (en) * | 2019-10-17 | 2021-10-01 | 安徽尚亿锅炉有限公司 | Boiler with waste heat recovery function |
| CN110887228B (en) * | 2019-10-17 | 2021-10-01 | 安徽尚亿锅炉有限公司 | Automatic feeding biomass particle generator |
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