CN202328312U - Boiler tail gas heat exchanger - Google Patents
Boiler tail gas heat exchanger Download PDFInfo
- Publication number
- CN202328312U CN202328312U CN2011204960524U CN201120496052U CN202328312U CN 202328312 U CN202328312 U CN 202328312U CN 2011204960524 U CN2011204960524 U CN 2011204960524U CN 201120496052 U CN201120496052 U CN 201120496052U CN 202328312 U CN202328312 U CN 202328312U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- gas heat
- heat exchange
- flue gas
- exchanger
- 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.)
- Expired - Fee Related
Links
Images
Classifications
-
- 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
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model discloses a boiler tail gas heat exchanger, which comprises a fume heat exchanger and a vapor heat exchanger, wherein the fume heat exchanger comprises a fume heat exchange chamber with a fume inlet and a fume outlet; a fume heat exchange unit is arranged in the fume heat exchange chamber; the vapor heat exchanger comprises a vapor heat exchange chamber; a vapor heat exchange unit is arranged in the vapor heat exchange chamber; a water inlet pipe and a water outlet pipe, which penetrate through the vapor heat exchange chamber, are arranged on the vapor heat exchange unit; and the top and bottom parts of the fume heat exchange device are respectively communicated with the vapor heat exchange chamber. By adoption of the boiler tail gas heat exchanger which is simple in structure, the heat of boiler tail gas can be utilized, energy sources can be saved, and environmental pollution is reduced.
Description
Technical field
The utility model relates to a kind of boiler exhaust gas heat exchanger.
Background technology
At present, it is boiler exhaust gas that boiler of power plant is discharged to airborne flue gas, and its temperature is still very high, contains a large amount of heats, not only environment is polluted, and causes great energy waste.In order to make full use of boiler exhaust gas institute heat content, to reach energy savings and the purpose that reduces environmental pollution, be necessary very much to design a kind of can be with the heat-exchanger rig of this part Btu utilization.
The utility model content
The technical problem that the utility model will solve provides a kind of boiler exhaust gas heat exchanger, to reach energy savings and the purpose that reduces environmental pollution.
In order to solve the problems of the technologies described above, the utility model provides a kind of boiler exhaust gas heat exchanger of following structure, and its design feature is to comprise flue gas heat exchange device and vapor heat exchanger; The flue gas heat exchange device comprises and is provided with the into flue gas heat exchange chamber of mouth and outlet flue, the indoor flue gas heat exchanger that is provided with of flue gas heat exchange; Vapor heat exchanger comprises the steam heat-exchanging chamber, the indoor steam heat-exchanger that is provided with of steam heat-exchanging, and steam heat-exchanger is provided with water inlet pipe and the outlet pipe that passes the steam heat-exchanging chamber; The top of flue gas heat exchanger and bottom are communicated with the steam heat-exchanging chamber respectively.
Said flue gas heat exchanger comprises cross pipe and following cross pipe, is provided with the vertical tube that is communicated with the two between last cross pipe and the following cross pipe, and last cross pipe is communicated with the steam heat-exchanging chamber respectively with following cross pipe.
Said steam heat-exchanger is a heat exchange coil.
Said water inlet pipe is provided with flow control valve, the indoor temperature sensor that is provided with of flue gas heat exchange, and temperature sensor is through the opening degree of control circuit control flow control valve.
The boiler exhaust gas heat exchanger of said structure; Its method for using is following: with adding water (had better not fill it up with) in the flue gas heat exchanger; Boiler exhaust gas heat exchanger string is contained on the smoke discharging pipe of boiler, makes it between air preheater and deduster, flue gas is from advancing mouth and get into the flue gas heat exchange chamber and from the process that outlet flue is discharged; Flue gas heat exchanger is heated; The steam of the water generates in it gets into the steam heat-exchanging chamber, and steam heats the water of the steam heat-exchanger of flowing through, and the condensed water that steam produces flows back in the flue gas heat exchanger again.Above-mentioned heat exchanging process can obtain hot water, has realized the utilization to boiler exhaust gas institute heat content.After flue gas heat exchanger adds water, in use, do not need moisturizing again.
In sum, the advantage of the utility model is: realization simple in structure to the utilization of boiler exhaust gas institute heat content, brought energy savings and the beneficial effect that reduces environmental pollution.
Description of drawings
Below in conjunction with accompanying drawing the specific embodiment of the utility model is done further to specify:
Fig. 1 is the structural representation of the utility model.
The specific embodiment
As shown in Figure 1, the boiler exhaust gas heat exchanger comprises flue gas heat exchange device and vapor heat exchanger.The flue gas heat exchange device comprises the flue gas heat exchange chamber 1 that is provided with mouth into 9 and outlet flue 10; The indoor flue gas heat exchanger 2 that is provided with of flue gas heat exchange; Flue gas heat exchanger 2 comprises cross pipe 21 and following cross pipe 22, is provided with the vertical tube 23 that is communicated with the two between last cross pipe 21 and the following cross pipe 22.Vapor heat exchanger comprises steam heat-exchanging chamber 3, is provided with steam heat-exchanger 4 in the steam heat-exchanging chamber 3, and steam heat-exchanger 4 is a heat exchange coil; Steam heat-exchanger 4 is provided with the water inlet pipe 5 and outlet pipe 6 that passes steam heat-exchanging chamber 3, and promptly an end of heat exchange coil is connected with water inlet pipe 5, and the other end is connected with outlet pipe 6.The top of flue gas heat exchanger 2 and bottom are communicated with steam heat-exchanging chamber 3 respectively, and last cross pipe 21 is communicated with through steam pipe 11 and steam heat-exchanging chamber 3, and following cross pipe 22 is communicated with through condensate pipe 12 and steam heat-exchanging chamber 3.
In order to prevent that cold end corrosion from appearring in flue gas heat exchanger 2 and steam heat-exchanger 4; On the basis of technique scheme, can do further improvement, promptly on said water inlet pipe 5, be provided with flow control valve 7; Be provided with temperature sensor 8 in the flue gas heat exchange chamber 1; Temperature sensor 8 is through the opening degree of control circuit control flow control valve 7, and the control circuit circuit is the known technology of this area, repeats no more at this.If it is low to get into the flue-gas temperature of flue gas heat exchange chamber 1; Then temperature sensor 8 sends signal, and the opening degree of control flow control valve 7 is reduced, and reduces the inflow of steam heat-exchanger 4; If it is high to get into the flue-gas temperature of flue gas heat exchange chamber 1; Then temperature sensor 8 sends signal, and the opening degree of control flow control valve 7 is strengthened, and increases the inflow of steam heat-exchanger 4.
Claims (4)
1. the boiler exhaust gas heat exchanger is characterized in that comprising flue gas heat exchange device and vapor heat exchanger; The flue gas heat exchange device comprises and is provided with the into flue gas heat exchange chamber (1) of mouth and outlet flue, the indoor flue gas heat exchanger (2) that is provided with of flue gas heat exchange; Vapor heat exchanger comprises steam heat-exchanging chamber (3), is provided with steam heat-exchanger (4) in steam heat-exchanging chamber (3), and steam heat-exchanger (4) is provided with water inlet pipe (5) and the outlet pipe (6) that passes steam heat-exchanging chamber (3); The top of flue gas heat exchanger (2) and bottom are communicated with steam heat-exchanging chamber (3) respectively.
2. boiler exhaust gas heat exchanger as claimed in claim 1; It is characterized in that said flue gas heat exchanger (2) comprises cross pipe (21) and following cross pipe (22); Be provided with the vertical tube (23) that is communicated with the two between last cross pipe (21) and the following cross pipe (22), last cross pipe (21) and following cross pipe (22) are communicated with steam heat-exchanging chamber (3) respectively.
3. boiler exhaust gas heat exchanger as claimed in claim 1 is characterized in that said steam heat-exchanger (4) is a heat exchange coil.
4. like claim 1,2 or 3 described boiler exhaust gas heat exchangers; It is characterized in that said water inlet pipe (5) is provided with flow control valve (7); Be provided with temperature sensor (8) in the flue gas heat exchange chamber (1), temperature sensor (8) is through the opening degree of control circuit control flow control valve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204960524U CN202328312U (en) | 2011-12-03 | 2011-12-03 | Boiler tail gas heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204960524U CN202328312U (en) | 2011-12-03 | 2011-12-03 | Boiler tail gas heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202328312U true CN202328312U (en) | 2012-07-11 |
Family
ID=46440293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204960524U Expired - Fee Related CN202328312U (en) | 2011-12-03 | 2011-12-03 | Boiler tail gas heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202328312U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471083A (en) * | 2013-10-10 | 2013-12-25 | 中兴能源（唐山）节能有限公司 | Boiler exhaust smoke waste heat utilization system and control method thereof |
| CN112725102A (en) * | 2020-12-04 | 2021-04-30 | 宁波东君工程技术有限公司 | System and method for treating secondary steam tail gas of boiling boiler |
-
2011
- 2011-12-03 CN CN2011204960524U patent/CN202328312U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103471083A (en) * | 2013-10-10 | 2013-12-25 | 中兴能源（唐山）节能有限公司 | Boiler exhaust smoke waste heat utilization system and control method thereof |
| CN103471083B (en) * | 2013-10-10 | 2015-06-17 | 中兴能源（唐山）节能有限公司 | Boiler exhaust smoke waste heat utilization system and control method thereof |
| CN112725102A (en) * | 2020-12-04 | 2021-04-30 | 宁波东君工程技术有限公司 | System and method for treating secondary steam tail gas of boiling boiler |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101634457A (en) | Flue-gas waste heat reclaiming system | |
| CN103244214A (en) | Smoke condensation heat recovery combined heat and power supply system based on organic Rankine cycle | |
| CN103940087B (en) | A kind of narrow gap oblateness dual coil pipes entirety condensing boiler | |
| CN102607010A (en) | Composite phase-change heat exchange system | |
| CN106369805B (en) | Condensing gas water heater and waste heat recovery method | |
| CN104913294A (en) | Waste heat recovery system for smoke discharging of thermal power plant boiler | |
| CN204694131U (en) | A kind of complex phase-change heat exchanger | |
| CN201912872U (en) | Flue gas condensing, drying and heating device | |
| CN201884079U (en) | Heat regenerative system of steam turbine generator unit capable of utilizing waste heat of heat conducting oil furnace in calcination plant | |
| CN204240381U (en) | A kind of boiler smoke modularization list low-temperature receiver condensing unit | |
| CN202328312U (en) | Boiler tail gas heat exchanger | |
| CN100520268C (en) | Fume-fume hot pipe heater exchanger for fume desulphurization in heat-engine plant | |
| CN201926121U (en) | Horizontal type condensing normal pressure hot water boiler | |
| CN103994458A (en) | Composite phase change heat exchanger suitable for thermal power generating unit | |
| CN201517780U (en) | Smoke gas waste heat recovery system | |
| CN201517767U (en) | Smoke gas waste heat recovery system | |
| CN202733874U (en) | Device utilizing waste heat of low-grade flue gas | |
| CN202074505U (en) | Heat-conducting oil furnace tial-gas waste heat heating condensed water device | |
| CN102767820B (en) | Smoke waste heat utilizing system at tail of power station boiler applicable to operation in variable working condition | |
| CN202158578U (en) | Composite water circulation heat exchanger with function of exchanging heat and heating air for three times | |
| CN202599171U (en) | Flue gas waste heat recovery device | |
| CN203534221U (en) | Metallurgy kiln high-temperature flue gas waste heat recovery system | |
| CN107062193A (en) | A kind of system economized on water for coal-burning power plant's UTILIZATION OF VESIDUAL HEAT IN and desulfurization | |
| CN208983401U (en) | Natural gas condenses regenerative air heater | |
| CN205366674U (en) | Hot oil tank of heat pump |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |