CN208090710U - A kind of tubular type condensation heat exchange system of achievable dropwise condensation - Google Patents
A kind of tubular type condensation heat exchange system of achievable dropwise condensation Download PDFInfo
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- CN208090710U CN208090710U CN201820501795.8U CN201820501795U CN208090710U CN 208090710 U CN208090710 U CN 208090710U CN 201820501795 U CN201820501795 U CN 201820501795U CN 208090710 U CN208090710 U CN 208090710U
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- flue gas
- heat exchanger
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- condensation
- gas condenser
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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
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
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Abstract
The utility model discloses a kind of tubular type condensation heat exchange systems of achievable dropwise condensation, including air preheater, deduster, desulfurizing tower, flue gas condenser, chimney and cooling blower；The outlet of air preheater is connected through deduster and desulfurizing tower with the entrance of heat exchanger tube in flue gas condenser successively, the outlet of heat exchanger tube is connected with the entrance of chimney in flue gas condenser, the outlet of cooling blower is connected with the air intake of flue gas condenser, the extraneous user terminal of air outlet slit connection of flue gas condenser；It is provided with several scales on the inner wall of heat exchanger tube, helical fin is provided on the outer wall of heat exchanger tube, based on dropwise condensation, heat exchange efficiency is higher for the condensation of flue gas moisture in the heat-exchange system, and cost of investment is relatively low.
Description
Technical field
The utility model belongs to energy-saving and water-saving technical field, is related to a kind of tubular type condensing heat-exchange system of achievable dropwise condensation
System.
Background technology
Severe with sending out the day of Environmental Protection Situation in recent years, the thermal power plant of 90% or more the country has installed wet desulphurization system additional
System, the saturation wet flue gas that the flue gas after wet desulphurization is 50 DEG C or so, the unit chimney entrance of the high-moistures coal such as combusting brown coal
The temperature of saturation wet flue gas can reach 54 DEG C or so.It is saturated in wet cigarette and contains a large amount of moisture, it can be in cigarette after smoke stack emission
Chimney exports to form obviously " emit white cigarette " phenomenon, even " chimney rain " phenomenon.
The many regional drought and water shortage in China, but entire unit requires supplementation with a large amount of industrial water, makes to a certain extent
At power plant operation difficulty, and by after the water condensation carried in wet-method desulfurized fume for supplement the industrial water of power plant at
For a hot research topic.
The heat exchanger water-saving currently used for flue gas condensing after desulfurizing tower mainly have teflon heat exchanger, enamel heat exchange of heat pipe with
And corrosion resistant metallic recuperator etc., it is light pipe heat exchanger, the condensation that the moisture on flue top shows in heat exchanger tube is between film
Shape condenses between dropwise condensation, and flue lower part flowing down due to top condensed water, and the condensation that heat exchanger tube shows is mainly
Film condensation.Film condensation reduces the heat exchange efficiency of heat exchanger so that heat exchanger area increases, and the heat exchanger of mainstream at present
It is all made of corrosion resistant high-grade material to make, therefore invests larger.
The heat-exchange system water-saving currently used for flue gas condensing after desulfurizing tower is mainly flue gas --- water heat-exchange system, i.e. flue gas
In heat exchanger be cooled water cooling, and cooling water in cooling tower by air cooling.System include circulation and
Circulating water cooling system, system complex, investment are higher.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts provides a kind of achievable dropwise condensation
Tubular type condensation heat exchange system, based on dropwise condensation, heat exchange efficiency is higher, and throws for the condensation of flue gas moisture in the heat-exchange system
It is relatively low to provide cost.
In order to achieve the above objectives, the tubular type condensation heat exchange system of achievable dropwise condensation described in the utility model includes sky
Air preheater, deduster, desulfurizing tower, flue gas condenser, chimney and cooling blower；
The outlet of air preheater is connected through deduster and desulfurizing tower with the entrance of heat exchanger tube in flue gas condenser successively,
The outlet of heat exchanger tube is connected with the entrance of chimney in flue gas condenser, and the outlet of cooling blower and the air of flue gas condenser enter
Mouth is connected, the extraneous user terminal of air outlet slit connection of flue gas condenser；
It is provided with several scales on the inner wall of heat exchanger tube, helical fin is provided on the outer wall of heat exchanger tube.
Further include condensate polishing system, wherein the condensation water out of flue gas condenser and entering for condensate polishing system
Mouth is connected.
Air-introduced machine is provided between deduster and desulfurizing tower.
Flue gas condenser includes shell, heat exchanger tube, the first concentric reducer and the second concentric reducer, wherein heat exchanger tube is located at shell
It is interior, the first concentric reducer and the second concentric reducer is respectively arranged at the smoke inlet of shell and smoke outlet, the outlet of desulfurizing tower
It is connected successively with the entrance of chimney through the first concentric reducer, heat exchanger tube and the second concentric reducer, in the outlet and shell of air-introduced machine
Air intake is connected, and the air outlet slit on shell is connected with extraneous user terminal.
Heat exchanger tube inner fin is arranged as in-line or stagger arrangement.
The fin ratio of heat exchanger tube outer spiral fin is 20, and helical fin is rolled using steel aluminum compound structure.
The utility model has the advantages that：
For the tubular type condensation heat exchange system of achievable dropwise condensation described in the utility model when specific operation, desulfurizing tower is defeated
The wet flue gas gone out, which enters directly into flue gas condenser, to be condensed, and circulation and recirculated water cooling in traditional technology are saved
But system greatly simplifies system structure, reduces investment outlay, and flue gas moisture after flue gas condenser condenses is greatly reduced, condensed
Flue gas is excluded from chimney, to slow down the phenomenon that chimney emits white cigarette and chimney rain.In addition, air enters flue gas condensing through air-introduced machine
The flue gas in heat exchanger tube in flue gas condenser is condensed in device, scale is provided in the heat exchanger tube in flue gas condenser, changes
It is provided with helical fin on the outer wall of heat pipe, to improve the coefficient of heat transfer of flue gas condenser, reduces the volume of flue gas condenser, into
One step is reduced investment outlay；Wet flue gas is fallen after being condensed in heat exchanger tube along scale simultaneously, and the shape of liquid film can be destroyed by scale
At conducive to condensed water dropwise condensation.Extraneous user terminal is entered after heating in addition, air exchanges heat in flue gas condenser, is realized
The utilization of system waste heat.
Further, the condensed water of flue gas condenser enters condensate polishing system and is handled, and is re-used as desulphurization system
Supplement industry water and unit other equipment water, the water consumption of power plant is greatly reduced.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of flue gas condenser 5 in the utility model；
Fig. 3 is the structural schematic diagram of outer spiral fin 12 in the utility model；
Fig. 4 is the distribution map of scale 13 in the utility model.
Wherein, 1 it is air preheater, 2 be deduster, 3 be air-introduced machine, 4 be desulfurizing tower, 5 be flue gas condenser, 6 is cigarette
Chimney, 7 be cooling blower, 8 be heat exchanger tube, 9 be shell, 10 be the first concentric reducer, 11 be the second concentric reducer, 12 be helical fin,
13 be scale.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, the tubular type condensation heat exchange system of achievable dropwise condensation described in the utility model includes air preheat
Device 1, deduster 2, desulfurizing tower 4, flue gas condenser 5, chimney 6 and cooling blower 7；The outlet of air preheater 1 is successively through dedusting
Device 2 and desulfurizing tower 4 are connected with the entrance of heat exchanger tube 8 in flue gas condenser 5, the outlet of heat exchanger tube 8 and cigarette in flue gas condenser 5
The entrance of chimney 6 is connected, and the outlet of cooling blower 7 is connected with the air intake of flue gas condenser 5, the sky of flue gas condenser 5
Gas outlet external world user terminal；It is provided with several scales 13 on the inner wall of heat exchanger tube 8, spiral shell is provided on the outer wall of heat exchanger tube 8
Revolve fin 12, wherein air-introduced machine 3 is provided between deduster 2 and desulfurizing tower 4.
The utility model further includes condensate polishing system, wherein at the condensation water out and condensed water of flue gas condenser 5
The entrance of reason system is connected.
With reference to figure 2, flue gas condenser 5 includes shell 9, heat exchanger tube 8, the first concentric reducer 10 and the second concentric reducer 11, wherein
Heat exchanger tube 8 is located in shell 9, the first concentric reducer 10 and the second concentric reducer 11 is respectively arranged at the smoke inlet of shell 9 and cigarette
Gas outlet, desulfurizing tower 4 export the entrance phase through the first concentric reducer 10, heat exchanger tube 8 and the second concentric reducer 11 and chimney 6 successively
Connection, the outlet of air-introduced machine 3 are connected with the air intake on shell 9, and the air outlet slit on shell 9 is connected with extraneous user terminal
It is logical.
With reference to figure 3 and Fig. 4,8 inner fin of heat exchanger tube is arranged as in-line or stagger arrangement；8 outer spiral fin 12 of heat exchanger tube
Fin ratio is 20, and helical fin 12 is rolled using steel aluminum compound structure.
The specific work process of the utility model is：
Flue gas, which enters after the cooling of air preheater 1 in deduster 2, to be dusted, and the flue gas that deduster 2 exports is through air inducing
Machine 3 and desulfurizing tower 4 enter flue gas condenser 5 by cool-down dehumidification, are most discharged into air through chimney 6 afterwards.Air enters through cooling blower 7
It absorbs heat in flue gas condenser 5, the air after heat absorption enters extraneous user terminal and is utilized.The utility model is directly cold using air
The wet flue gas that solidifying desulfurizing tower 4 exports, saves circulation and circulating water cooling system, enormously simplifies system, reduce investment outlay.
Flue gas flows in the heat exchanger tube 8 in flue gas condenser 5, and air flows outside heat exchanger, the water condensed during flue gas condensing
Prolong scale 13 to fall, scale 13 is bulge-structure, can destroy the formation of liquid film, is conducive to the dropwise condensation of water.8 peripheral hardware of heat exchanger tube
It is equipped with the helical fin 12 for reinforcing heat exchange, which is rolled using aluminum material, and fin ratio is up to
20, the coefficient of heat transfer is high.Heat exchanger tube 8 is inside and outside in the utility model reinforces exchanging heat simultaneously, to improve the heat exchange system of flue gas condenser 5
Number reduces the volume of flue gas condenser 5.In addition, flue gas condenser 5 export condensed water enter in condensate polishing system into
Row processing, the supplement industry water or unit other equipment water of water can be used as desulphurization system that treated, substantially reduces power plant
Water consumption.
Claims (6)
1. a kind of tubular type condensation heat exchange system of achievable dropwise condensation, which is characterized in that including air preheater (1), dedusting
Device (2), desulfurizing tower (4), flue gas condenser (5), chimney (6) and cooling blower (7)；
The outlet of air preheater (1) is successively through deduster (2) and desulfurizing tower (4) and flue gas condenser (5) interior heat exchanger tube (8)
Entrance is connected, and the outlet of flue gas condenser (5) interior heat exchanger tube (8) is connected with the entrance of chimney (6), cooling blower (7)
Outlet is connected with the air intake of flue gas condenser (5), the extraneous user terminal of air outlet slit connection of flue gas condenser (5)；
It is provided with several scales (13) on the inner wall of heat exchanger tube (8), helical fin (12) is provided on the outer wall of heat exchanger tube (8).
2. the tubular type condensation heat exchange system of achievable dropwise condensation according to claim 1, which is characterized in that further include coagulating
Bear water processing system, wherein the condensation water out of flue gas condenser (5) is connected with the entrance of condensate polishing system.
3. the tubular type condensation heat exchange system of achievable dropwise condensation according to claim 1, which is characterized in that deduster
(2) air-introduced machine (3) is provided between desulfurizing tower (4).
4. the tubular type condensation heat exchange system of achievable dropwise condensation according to claim 1, which is characterized in that flue gas condensing
Device (5) includes shell (9), heat exchanger tube (8), the first concentric reducer (10) and the second concentric reducer (11), wherein heat exchanger tube (8) is located at
In shell (9), the first concentric reducer (10) and the second concentric reducer (11) is respectively arranged at the smoke inlet of shell (9) and flue gas goes out
At mouthful, the outlet of desulfurizing tower (4) is successively through the first concentric reducer (10), heat exchanger tube (8) and the second concentric reducer (11) and chimney (6)
Entrance is connected, and the outlet of air-introduced machine (3) is connected with the air intake on shell (9), the air outlet slit on shell (9) with it is outer
Boundary's user terminal is connected.
5. the tubular type condensation heat exchange system of achievable dropwise condensation according to claim 1, which is characterized in that heat exchanger tube
(8) inner fin is arranged as in-line or stagger arrangement.
6. the tubular type condensation heat exchange system of achievable dropwise condensation according to claim 1, which is characterized in that heat exchanger tube
(8) fin ratio of outer spiral fin (12) is 20, and helical fin (12) is rolled using steel aluminum compound structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820501795.8U CN208090710U (en) | 2018-04-10 | 2018-04-10 | A kind of tubular type condensation heat exchange system of achievable dropwise condensation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820501795.8U CN208090710U (en) | 2018-04-10 | 2018-04-10 | A kind of tubular type condensation heat exchange system of achievable dropwise condensation |
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| CN208090710U true CN208090710U (en) | 2018-11-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201820501795.8U Active CN208090710U (en) | 2018-04-10 | 2018-04-10 | A kind of tubular type condensation heat exchange system of achievable dropwise condensation |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361727A (en) * | 2018-04-10 | 2018-08-03 | 西安西热锅炉环保工程有限公司 | A kind of tubular type condensation heat exchange system of achievable dropwise condensation |
| CN111991979A (en) * | 2020-08-06 | 2020-11-27 | 杭州迪卡能源技术有限公司 | System for eliminating white smoke by mixing outside condensation warm air chimney |
-
2018
- 2018-04-10 CN CN201820501795.8U patent/CN208090710U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108361727A (en) * | 2018-04-10 | 2018-08-03 | 西安西热锅炉环保工程有限公司 | A kind of tubular type condensation heat exchange system of achievable dropwise condensation |
| CN111991979A (en) * | 2020-08-06 | 2020-11-27 | 杭州迪卡能源技术有限公司 | System for eliminating white smoke by mixing outside condensation warm air chimney |
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