CN104913503B - Boiler afterheat depth retracting device - Google Patents
Boiler afterheat depth retracting device Download PDFInfo
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- CN104913503B CN104913503B CN201510350330.8A CN201510350330A CN104913503B CN 104913503 B CN104913503 B CN 104913503B CN 201510350330 A CN201510350330 A CN 201510350330A CN 104913503 B CN104913503 B CN 104913503B
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- upper box
- flue
- heat
- vapor
- heat transfer
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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
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
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Abstract
The present invention relates to Industrial Boiler field, specifically a kind of boiler afterheat depth retracting device, including upper box and the condensation heat transfer case being arranged at below the upper box, flash zone and heat convection region are sequentially provided with the upper box from top to bottom, upper box is provided with flue, the flue communicates with the flash zone, sewer is changed into vapor in the vaporific entrance flash zone and by flash distillation mode, heat exchanging water pipe is provided with heat convection region, the input of the heat exchanging water pipe communicates with the condensation heat transfer case, the output end of the heat exchanging water pipe is extend out to outside upper box to be connected with exterior line, the bottom of the condensation heat transfer case is provided with water inlet, multiple smoke pipes are evenly equipped with the condensation heat transfer case, vapor regelation in the smoke pipe in flue gas.The present invention realizes that waste heat depth reclaims by the heat exchange of the phase change of forced convective heat transfer of flue and vapor, substantially increases waste heat recovery efficiency.
Description
Technical field
The present invention relates to Industrial Boiler field, specifically a kind of boiler afterheat depth retracting device.
Background technology
In the prior art, flue gas caused by boiler and waste water are directly drained as waste more, and this both pollutes environment, simultaneously
A large amount of waste heats present in flue gas and waste water are not also used properly, and the higher enterprise of awareness of saving energy passes through heat exchanger more
Discharged again after the waste heat of sewer is reclaimed, but using the boiler of such a mode, remaining heat recovery efficiency is limited, great Liang Yu
Heat energy still wastes.
The content of the invention
It is an object of the invention to provide a kind of boiler afterheat depth retracting device, is steamed by forced convective heat transfer of flue and water
The phase change heat exchange of gas realizes that waste heat depth reclaims, and substantially increases waste heat recovery efficiency.
The purpose of the present invention is achieved through the following technical solutions：
A kind of boiler afterheat depth retracting device, including upper box and the condensation heat transfer that is arranged at below the upper box
Case, flash zone and heat convection region is sequentially provided with from top to bottom in the upper box, upper box is provided with flue, described
Flue communicates with the flash zone, and sewer is changed into water in the vaporific entrance flash zone and by flash distillation mode
Steam, heat exchanging water pipe is provided with heat convection region, the input of the heat exchanging water pipe communicates with the condensation heat transfer case, described
The output end of heat exchanging water pipe is extend out to outside upper box to be connected with exterior line, and the bottom of the condensation heat transfer case is provided with water inlet,
It is evenly equipped with multiple smoke pipes in the condensation heat transfer case, vapor regelation in the smoke pipe in flue gas.
Flue gas flows into smoke pipe when dropping to more than Water vapor condensation temperature 15~30 degree with the mixture temperature of vapor.
The smoke pipe is vertical structure from top to bottom.
Side of the flash zone of the upper box away from flue is provided with ultrasonic generator.
The heat exchanging water pipe is in multiple reciprocal bending-like.
The upper box top is provided with shower nozzle, and the sewage pipe of boiler is connected with the shower nozzle.
The other end of the flue with one initial stage purifier communicate, the purifier at initial stage passes through flue and pot
Furnace body communicates, and sewer is changed into water in the vaporific entrance purifier at initial stage and by directly being contacted with high-temperature flue gas
Steam.
Shower nozzle is provided with the purifier at initial stage.
Advantages of the present invention is with good effect：
1st, the present invention improves part steam partial pressure in flue gas using sewer flash distillation, then first with the same vapor of flue gas
Mixed gas in a manner of heat convection recovery waste heat, recycle Water vapor condensation Cheng Shui phase change heat exchange recovery waste heat to dive
Can, so as to realize that the depth of boiler afterheat reclaims, waste heat recovery efficiency high.
2nd, the present invention is provided with ultrasonic generator outside upper box, and the original of nuclei of crystallization formation is can control using ultrasonic wave
Reason accelerates the formation of the flash zone nuclei of condensation.
3rd, the smoke pipe in the present invention is heat-treated to strengthen dropwise condensation heat transfer using nanometer technology to condensation heat transfer face,
And arrange what can be flowed from top to bottom by self gravitation and flue gas to condense the globule using vertical structure from top to bottom
Thrust leaves heat-transfer surface as early as possible, to ensure that heat-transfer surface is in good heat transfer and anticorrosion state.
4th, flue of the invention with one initial stage purifier be connected, can make part blowdown fog by with high temperature cigarette
Gas, which directly contacts, to carry out heat exchange and is changed into vapor and is lumped together with flue gas, preliminary to improve part steam partial pressure in flue gas.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Wherein, 1 is flue, and 2 be flash zone, and 3 be ultrasonic generator, and 4 be heat exchanging water pipe, and 5 be heat convection
Region, 6 be condensation heat transfer case, and 7 be water inlet, and 8 be smoke pipe, and 9 be sewage pipe, and 10 be purifier at initial stage.
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
As shown in figure 1, the present invention includes upper box and the condensation heat transfer case 6 that is arranged at below the upper box, it is described on
Flash zone 2 and heat convection region 5 are sequentially provided with casing from top to bottom, upper box is provided with flue 1, the flue
1 communicates with the flash zone 2 in upper box, and flue gas first passes around the flash zone 2 after flue 1 enters upper box,
Shower nozzle is provided with upper box top, sewage pipe 9 is connected with the shower nozzle, and sewer is in vaporific penetrating flash zone through the shower nozzle
In domain 2, the spraying water of shower nozzle used is few and the fogging degree height of spray water is to strengthen sewer flash evaporation effect, because boiler is arranged
Sewage is the high-temperature water for having certain pressure, and its physical property is determined if by it to depressurize release, before will certainly making release
State water contained energy is reached after the relative release decompression of original state water contained energy and is higher by a part, and this portion of energy certainly will lead to
Cross the i.e. so-called flash distillation form of water itself evaporated form to discharge, therefore the sewer sprayed in flash zone 2 is dodged by itself
Steaming forms vapor and lumped together with flue gas, improves the part steam partial pressure in flue gas, while have reinforcing dust removing effects.
Flue gas is sequentially entered behind flash zone 2 in heat convection region 5 and condensation heat transfer case 6, in heat convection area
Domain 5 is provided with repeatedly the heat exchanging water pipe 4 of reciprocal bending, and the input of the heat exchanging water pipe 4 communicates with the condensation heat transfer case 6, institute
The output end for stating heat exchanging water pipe 4 extend out to that upper box is outer to be connected with exterior line, and the condensation heat transfer case 6 is a closed box,
Parallel in condensation heat transfer case 6 to be evenly equipped with multiple smoke pipes 8 for flue gas circulation, each smoke pipe 8 is vertical knot from top to bottom
Structure, water inlet 7 is provided with the bottom of condensation heat transfer case 6, cold water enters condensation heat transfer case 6 by water inlet 7, then along reciprocal bending
Heat exchanging water pipe 4 flow in the heat convection region 5.
Flue gas with higher temperature flows into heat convection region 5 first with the gaseous mixture of vapor, is mainly changed with convection current
After hot mode is exchanged heat by heat exchanging water pipe 4 and cold water to be heated, mixture temperature drops to more than Water vapor condensation temperature
Flow into smoke pipe 8 at 15~30 degree again, the part vapor in flue gas condenses into water again in smoke pipe 8 releases latent heat and changed with condensation
Water in hot tank 6 carries out heat exchange, realizes and carries out depth recovery, in condensation heat transfer case 6, cigarette to the vapor latent heat in flue gas
Pipe 8 is heat-treated using nanometer technology to condensation heat transfer face to strengthen dropwise condensation heat transfer, and vertical using from top to bottom
Structure arrangement can rely on self gravitation and flue gas to flow thrust from top to bottom and leave heat-transfer surface as early as possible to condense the globule, to protect
Card heat-transfer surface is in good heat transfer and anticorrosion state.
Ultrasonic generator 3 is provided with the side of the flash zone 2 away from flue 1, can control using ultrasonic wave
The principle that the nuclei of crystallization are formed promotes the formation of the nuclei of condensation in flash zone 2, and the ultrasonic generator 3 is known in the art skill
Art.
Be provided with purifier 10 at initial stage between boiler body and the present invention, the lower end of boiler body by flue with it is described
Initial stage, purifier 10 was communicated, and the upper end of purifier at initial stage 10 is communicated by the flue 1 with upper box, the initial stage
Shower nozzle is provided with purifier 10, sewer is entered in the purifier at initial stage 10 in vaporific by the shower nozzle, the initial stage
Purifier 10 removes the harmful substance such as bulky grain dust using the kinetic energy of spray water, at the same make part blowdown fog by with height
Warm flue gas, which directly contacts, to carry out heat exchange and is changed into vapor and is lumped together with flue gas, preliminary to improve part vapor point in flue gas
Pressure.
The present invention operation principle be：
When high-temperature flue gas enters flash zone 2 by flue 1, blowdown fog is changed into the same flue gas of vapor in a manner of flashing
Lump together, improve part steam partial pressure in flue gas, while strengthen micronic dust removal effect, high-temperature flue gas is the same as the mixed of vapor
Close after mainly being exchanged heat when gas enters heat convection region 5 in a manner of heat convection by heat exchanging water pipe 4 and cold water, high temperature cigarette
Flow into smoke pipe 8 when gas drops to more than Water vapor condensation temperature 15~30 degree with the mixture temperature of vapor again, the portion in flue gas
Divide vapor to condense into water again in smoke pipe 8 and release latent heat and the cold water progress heat exchange in condensation heat transfer case 6, so as to realize
Boiler afterheat depth reclaims.
Claims (7)
- A kind of 1. boiler afterheat depth retracting device, it is characterised in that：Including upper box and it is arranged at below the upper box Condensation heat transfer case (6), flash zone (2) and heat convection region (5), upper box are sequentially provided with from top to bottom in the upper box Flue (1) is provided with, the flue (1) communicates with the flash zone (2), and the upper box top is provided with shower nozzle, pot The sewage pipe (9) of stove is connected with the shower nozzle, and sewer enters in the flash zone (2) and by itself sudden strain of a muscle in vaporific Steaming mode is changed into vapor, is provided with heat exchanging water pipe (4) in heat convection region (5), the input of the heat exchanging water pipe (4) and The condensation heat transfer case (6) communicates, and the output end of the heat exchanging water pipe (4) is extend out to outside upper box to be connected with exterior line, institute The bottom for stating condensation heat transfer case (6) is provided with water inlet (7), and multiple smoke pipes (8), flue gas are evenly equipped with the condensation heat transfer case (6) In vapor in the smoke pipe (8) interior regelation.
- 2. boiler afterheat depth retracting device according to claim 1, it is characterised in that：Gaseous mixture of the flue gas with vapor Temperature flows into smoke pipe (8) when dropping to more than Water vapor condensation temperature 15~30 degree.
- 3. boiler afterheat depth retracting device according to claim 1 or 2, it is characterised in that：The smoke pipe (8) is by upper Vertical structure under.
- 4. boiler afterheat depth retracting device according to claim 1, it is characterised in that：The flash zone of the upper box (2) side away from flue is provided with ultrasonic generator (3).
- 5. boiler afterheat depth retracting device according to claim 1, it is characterised in that：The heat exchanging water pipe (4) is in more Secondary reciprocal bending-like.
- 6. boiler afterheat depth retracting device according to claim 1, it is characterised in that：The flue (1) it is another End is communicated with a purifier at initial stage (10), and the purifier at initial stage (10) is communicated by flue with boiler body, blowdown Water is changed into vapor in the vaporific entrance purifier at initial stage (10) and by directly being contacted with high-temperature flue gas.
- 7. boiler afterheat depth retracting device according to claim 6, it is characterised in that：The purifier at initial stage (10) It is interior to be provided with shower nozzle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350330.8A CN104913503B (en) | 2015-06-23 | 2015-06-23 | Boiler afterheat depth retracting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510350330.8A CN104913503B (en) | 2015-06-23 | 2015-06-23 | Boiler afterheat depth retracting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104913503A CN104913503A (en) | 2015-09-16 |
| CN104913503B true CN104913503B (en) | 2018-03-06 |
Family
ID=54082779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510350330.8A Active CN104913503B (en) | 2015-06-23 | 2015-06-23 | Boiler afterheat depth retracting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104913503B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189697Y (en) * | 1992-12-14 | 1995-02-15 | 徐家刚 | Recovering tank of waste water discharged from boiler |
| CN1563874A (en) * | 2004-04-16 | 2005-01-12 | 杨振东 | Fume afterheat recovering system by hidden heat process |
| CN2909101Y (en) * | 2006-05-12 | 2007-06-06 | 郭瑞祥 | Environment protection energy-saving boiler using steam residual-heat |
| CN102252425A (en) * | 2010-05-20 | 2011-11-23 | 广东万和新电气股份有限公司 | Condensation-type gas water heating device with air humidifier |
| CN102519129A (en) * | 2011-12-14 | 2012-06-27 | 西安交通大学 | Chemical pool water heating system by aid of flue gas waste heat recovery and method |
| CN104110675A (en) * | 2014-07-31 | 2014-10-22 | 清华大学 | Deep heat recovery device and deep heat recovery method for boiler smoke |
| CN204787260U (en) * | 2015-06-23 | 2015-11-18 | 丹东蓝天环保锅炉制造有限公司 | Boiler waste heat degree of depth recovery unit |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5867959B2 (en) * | 2012-02-01 | 2016-02-24 | 株式会社サムソン | Economizer |
-
2015
- 2015-06-23 CN CN201510350330.8A patent/CN104913503B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2189697Y (en) * | 1992-12-14 | 1995-02-15 | 徐家刚 | Recovering tank of waste water discharged from boiler |
| CN1563874A (en) * | 2004-04-16 | 2005-01-12 | 杨振东 | Fume afterheat recovering system by hidden heat process |
| CN2909101Y (en) * | 2006-05-12 | 2007-06-06 | 郭瑞祥 | Environment protection energy-saving boiler using steam residual-heat |
| CN102252425A (en) * | 2010-05-20 | 2011-11-23 | 广东万和新电气股份有限公司 | Condensation-type gas water heating device with air humidifier |
| CN102519129A (en) * | 2011-12-14 | 2012-06-27 | 西安交通大学 | Chemical pool water heating system by aid of flue gas waste heat recovery and method |
| CN104110675A (en) * | 2014-07-31 | 2014-10-22 | 清华大学 | Deep heat recovery device and deep heat recovery method for boiler smoke |
| CN204787260U (en) * | 2015-06-23 | 2015-11-18 | 丹东蓝天环保锅炉制造有限公司 | Boiler waste heat degree of depth recovery unit |
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| Publication number | Publication date |
|---|---|
| CN104913503A (en) | 2015-09-16 |
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