CN204787260U - Boiler waste heat degree of depth recovery unit - Google Patents
Boiler waste heat degree of depth recovery unit Download PDFInfo
- Publication number
- CN204787260U CN204787260U CN201520435842.XU CN201520435842U CN204787260U CN 204787260 U CN204787260 U CN 204787260U CN 201520435842 U CN201520435842 U CN 201520435842U CN 204787260 U CN204787260 U CN 204787260U
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- CN
- China
- Prior art keywords
- heat transfer
- flue
- upper box
- heat
- transfer case
- 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.)
- Withdrawn - After Issue
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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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- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
Abstract
The utility model belongs to the technical field of industrial boiler and specifically relates to a boiler waste heat degree of depth recovery unit, including last box with set up in go up the condensation heat transfer case of box below, from the top down is equipped with the regional and heat convection region of flash distillation in proper order in going up the box, upward is equipped with into flue on the box, advance the flue with the flash distillation region communicates with each other, and the sewer is vaporific entering change vapor into in the flash distillation region and through the flash distillation mode, be equipped with the heat transfer water pipe in the heat convection region, the input of heat transfer water pipe with the condensation heat transfer case communicates with each other, the output of heat transfer water pipe stretches out supreme box and links to each other with outside pipeline outward, the bottom of condensation heat transfer case is equipped with the water inlet, the equipartition has a plurality of tobacco pipes in the condensation heat transfer case, and the vapor in the flue gas is in regelation in the tobacco pipe. The utility model discloses a heat transfer of change mutually of flue gas heat convection and vapor realizes the waste heat degree of depth and retrieves, has improved waste heat recovery efficiency greatly.
Description
Technical field
The utility model relates to Industrial Boiler field, specifically a kind of boiler afterheat degree of depth retracting device.
Background technology
In prior art, the flue gas that boiler produces and waste water is many directly drains as refuse, this both polluted environment, the a large amount of waste heats simultaneously existed in flue gas and waste water are not also properly used, the higher enterprise of awareness of saving energy is many by heat exchanger, the waste heat of sewer is reclaimed after discharge again, but adopt the boiler of this kind of mode, all the other heat recovery efficiencies are limited, and a large amount of waste heat energy still wastes.
Utility model content
The purpose of this utility model is to provide a kind of boiler afterheat degree of depth retracting device, realizes the recovery of the waste heat degree of depth, substantially increase waste heat recovery efficiency by the phase change heat exchange of forced convective heat transfer of flue and steam.
The purpose of this utility model is achieved through the following technical solutions:
A kind of boiler afterheat degree of depth retracting device, comprise upper box and be arranged at the condensation heat transfer case below described upper box, flash zone and heat convection region is provided with from top to bottom successively in described upper box, upper box is provided with flue, described flue communicates with described flash zone, sewer is vaporificly to enter in described flash zone and to change steam into by flash distillation mode, heat convection is provided with heat exchanging water pipe in region, the input of described heat exchanging water pipe communicates with described condensation heat transfer case, the output of described heat exchanging water pipe extend out to outside upper box and is connected with exterior line, the bottom of described condensation heat transfer case is provided with water inlet, multiple smoke pipe is evenly equipped with in described condensation heat transfer case, the regelation in described smoke pipe of steam in flue gas.
Flue gas flows into smoke pipe when dropping to more than steam adiabatic condensation temperature 15 ~ 30 degree with the mixture temperature of steam.
Described smoke pipe is vertical structure from top to bottom.
The flash zone of described upper box is provided with ultrasonic generator away from the side of flue.
Described heat exchanging water pipe is repeatedly reciprocal bending-like.
Described upper box top is provided with shower nozzle, and the sewage pipe of boiler is connected with described shower nozzle.
The other end of described flue communicates with an initial stage purifier, and described initial stage purifier is communicated with boiler body by flue, and sewer is vaporificly to enter in described initial stage purifier and to change steam into by directly contacting with high-temperature flue gas.
Shower nozzle is provided with in described initial stage purifier.
Advantage of the present utility model and good effect are:
1, the utility model utilizes sewer flash distillation to improve part steam partial pressure in flue gas, then flue gas is first utilized with the mist of steam with heat convection mode recovery waste heat, recycling steam condenses into the phase change heat exchange recovery waste heat potential of water, thus the degree of depth realizing boiler afterheat reclaims, waste heat recovery efficiency is high.
2, the utility model is provided with ultrasonic generator in upper box outside, utilizes ultrasonic wave can control the formation of the principle acceleration flash zone nuclei of condensation that the nuclei of crystallization are formed.
3, the smoke pipe employing nanometer technology in the utility model is heat-treated condensation heat transfer face and is strengthened dropwise condensation heat transfer, and adopt vertical structure from top to bottom to arrange so that the globule that condenses can rely on the thrust that self gravitation and flue gas flow to leave heat-transfer surface as early as possible from top to bottom, to ensure that heat-transfer surface is in good heat transfer and anticorrosion state.
4, flue of the present utility model is connected with an initial stage purifier, and part blowdown fog can be made to carry out heat exchange by directly contacting with high-temperature flue gas and become steam with flue gas and lump together, tentatively improves part steam partial pressure in flue gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein, 1 is flue, and 2 is flash zone, and 3 is ultrasonic generator, and 4 is heat exchanging water pipe, and 5 is heat convection region, and 6 is condensation heat transfer case, and 7 is water inlet, and 8 is smoke pipe, and 9 is sewage pipe, and 10 is initial stage purifier.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the utility model comprises upper box and is arranged at the condensation heat transfer case 6 below described upper box, flash zone 2 and heat convection region 5 is provided with from top to bottom successively in described upper box, upper box is provided with flue 1, described flue 1 communicates with the flash zone 2 in upper box, flue gas enters after upper box namely first through described flash zone 2 through flue 1, shower nozzle is provided with on upper box top, sewage pipe 9 is connected with described shower nozzle, sewer is vaporificly spray in flash zone 2 through described shower nozzle, the spraying water yield of shower nozzle used is few and the fogging degree of spray water is high to strengthen sewer flash evaporation effect, because boiler blowdown water is the high-temperature water with certain pressure, if its physical property determines it with release of reducing pressure, after before will certainly making release, previous status water contained energy discharges decompression relatively arrive state water contained energy and exceed a part, this part energy potential must be discharged by water self evaporated form and so-called flash distillation form, therefore the sewer of ejection in flash zone 2 is lumped together with flue gas by self flash distillation formation steam, improve the part steam partial pressure in flue gas, there is intensified dust removal effect simultaneously.
Flue gas enters in heat convection region 5 and condensation heat transfer case 6 successively behind flash zone 2, the heat exchanging water pipe 4 of repeatedly back and forth bending is provided with in heat convection region 5, the input of described heat exchanging water pipe 4 communicates with described condensation heat transfer case 6, the output of described heat exchanging water pipe 4 extend out to outside upper box and is connected with exterior line, described condensation heat transfer case 6 is a closed box, the parallel smoke pipe 8 being evenly equipped with the circulation of multiple confession flue gas in condensation heat transfer case 6, each smoke pipe 8 is vertical structure from top to bottom, water inlet 7 is provided with in the bottom of condensation heat transfer case 6, cold water enters condensation heat transfer case 6 by water inlet 7, then the heat exchanging water pipe 4 along reciprocal bending is flowed in heat convection region 5.
First the flue gas with higher temperature flows into heat convection region 5 with the gaseous mixture of steam, after mainly carrying out heat exchange by heat exchanging water pipe 4 with cold water to be heated in heat convection mode, mixture temperature flows into smoke pipe 8 when dropping to more than steam adiabatic condensation temperature 15 ~ 30 degree again, the water that part steam in flue gas again condenses in water releasing latent heat and condensation heat transfer case 6 in smoke pipe 8 carries out heat exchange, realize carrying out degree of depth recovery to the steam latent heat in flue gas, in condensation heat transfer case 6, smoke pipe 8 adopts nanometer technology to heat-treat condensation heat transfer face to strengthen dropwise condensation heat transfer, and the thrust that flows from top to bottom leaves heat-transfer surface as early as possible so that the globule that condenses can rely on self gravitation and flue gas to adopt vertical structure from top to bottom to arrange, to ensure that heat-transfer surface is in good heat transfer and anticorrosion state.
Side in described flash zone 2 away from flue 1 is provided with ultrasonic generator 3, and the principle utilizing ultrasonic wave can control nuclei of crystallization formation promotes the formation of the nuclei of condensation in flash zone 2, and described ultrasonic generator 3 is techniques well known.
Initial stage purifier 10 is provided with between boiler body and the utility model, the lower end of boiler body is communicated with described initial stage purifier 10 by flue, described initial stage purifier 10 upper end is communicated with upper box by described flue 1, shower nozzle is provided with in described initial stage purifier 10, sewer is vaporificly enter in described initial stage purifier 10 by described shower nozzle, described initial stage purifier 10 utilizes the harmful substances such as the kinetic energy removing bulky grain dust of spray water, make part blowdown fog carry out heat exchange and become steam with flue gas lumping together by directly contacting with high-temperature flue gas simultaneously, part steam partial pressure in preliminary raising flue gas.
Operation principle of the present utility model is:
When high-temperature flue gas enters flash zone 2 by flue 1, blowdown fog becomes steam in flash distillation mode and lumps together with flue gas, improve part steam partial pressure in flue gas, strengthen micronic dust removal effect simultaneously, after high-temperature flue gas mainly carries out heat exchange by heat exchanging water pipe 4 with cold water in heat convection mode when entering heat convection region 5 with the gaseous mixture of steam, high-temperature flue gas flows into smoke pipe 8 when dropping to more than steam adiabatic condensation temperature 15 ~ 30 degree with the mixture temperature of steam again, the cold water that part steam in flue gas again condenses in water releasing latent heat and condensation heat transfer case 6 in smoke pipe 8 carries out heat exchange, thus realize the recovery of the boiler afterheat degree of depth.
Claims (8)
1. a boiler afterheat degree of depth retracting device, it is characterized in that: comprise upper box and be arranged at the condensation heat transfer case (6) below described upper box, flash zone (2) and heat convection region (5) are provided with from top to bottom successively in described upper box, upper box is provided with flue (1), described flue (1) communicates with described flash zone (2), sewer is vaporificly to enter in described flash zone (2) and to change steam into by flash distillation mode, heat exchanging water pipe (4) is provided with in heat convection region (5), the input of described heat exchanging water pipe (4) communicates with described condensation heat transfer case (6), the output of described heat exchanging water pipe (4) extend out to outside upper box and is connected with exterior line, the bottom of described condensation heat transfer case (6) is provided with water inlet (7), multiple smoke pipe (8) is evenly equipped with in described condensation heat transfer case (6), the regelation in described smoke pipe (8) of steam in flue gas.
2. boiler afterheat degree of depth retracting device according to claim 1, is characterized in that: flow into smoke pipe (8) when flue gas drops to more than steam adiabatic condensation temperature 15 ~ 30 degree with the mixture temperature of steam.
3. boiler afterheat degree of depth retracting device according to claim 1 and 2, is characterized in that: described smoke pipe (8) is vertical structure from top to bottom.
4. boiler afterheat degree of depth retracting device according to claim 1, is characterized in that: the flash zone (2) of described upper box is provided with ultrasonic generator (7) away from the side of flue.
5. boiler afterheat degree of depth retracting device according to claim 1, is characterized in that: described heat exchanging water pipe (4) is repeatedly reciprocal bending-like.
6. boiler afterheat degree of depth retracting device according to claim 1, is characterized in that: described upper box top is provided with shower nozzle, the sewage pipe (9) of boiler is connected with described shower nozzle.
7. boiler afterheat degree of depth retracting device according to claim 1, it is characterized in that: the other end of described flue (1) communicates with an initial stage purifier (10), described initial stage purifier (10) is communicated with boiler body by flue, and sewer is vaporificly to enter in described initial stage purifier (10) and to change steam into by directly contacting with high-temperature flue gas.
8. boiler afterheat degree of depth retracting device according to claim 7, is characterized in that: be provided with shower nozzle in described initial stage purifier (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435842.XU CN204787260U (en) | 2015-06-23 | 2015-06-23 | Boiler waste heat degree of depth recovery unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520435842.XU CN204787260U (en) | 2015-06-23 | 2015-06-23 | Boiler waste heat degree of depth recovery unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204787260U true CN204787260U (en) | 2015-11-18 |
Family
ID=54527298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520435842.XU Withdrawn - After Issue CN204787260U (en) | 2015-06-23 | 2015-06-23 | Boiler waste heat degree of depth recovery unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204787260U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913503A (en) * | 2015-06-23 | 2015-09-16 | 丹东蓝天环保锅炉制造有限公司 | Deep waste heat recycle device of boiler |
-
2015
- 2015-06-23 CN CN201520435842.XU patent/CN204787260U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104913503A (en) * | 2015-06-23 | 2015-09-16 | 丹东蓝天环保锅炉制造有限公司 | Deep waste heat recycle device of boiler |
| CN104913503B (en) * | 2015-06-23 | 2018-03-06 | 丹东蓝天环保锅炉制造有限公司 | Boiler afterheat depth retracting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20151118 Effective date of abandoning: 20180306 |