CN202361629U - High-efficiency fume condensing waste heat recovery device - Google Patents
High-efficiency fume condensing waste heat recovery device Download PDFInfo
- Publication number
- CN202361629U CN202361629U CN2011204323757U CN201120432375U CN202361629U CN 202361629 U CN202361629 U CN 202361629U CN 2011204323757 U CN2011204323757 U CN 2011204323757U CN 201120432375 U CN201120432375 U CN 201120432375U CN 202361629 U CN202361629 U CN 202361629U
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- CN
- China
- Prior art keywords
- flue gas
- fume
- recovery device
- efficient
- collecting box
- 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
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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]
Abstract
The utility model relates to a high-efficiency fume condensing waste heat recovery device. The high-efficiency fume condensing waste heat recovery device comprises a boiler fume discharge pipe (1), a static pressure box-type fume condensing water collecting box (2), a high-efficiency fume-water heat exchanger (3), a fume collecting box (4), a fume emission pipe (5), a cooling water inlet pipe (6) and a cooling water outlet pipe (7). The high-efficiency fume condensing waste heat recovery device provided by the utility model utilizes a high-efficiency fume waste heat recovery device to guarantee the fume temperature of a gas-fired boiler at 120-250 DEG C to drop to 40-60 DEG C, and heats cooling water at 40 DEG C to 60 DEG C; water vapor in the fume turns into condensed water, thus latent heat and sensible heat contained in the fume can be furthest recovered; and meanwhile, generated condensed water after fume cooling is effectively discharged in time.
Description
Technical field
The utility model relates to a kind of efficient flue gas condensing waste-heat recovery device, is used for gas fired-boiler flue gas waste heat recovery utilization.
Background technology
Can emit the heat of 9450Kcal behind the 1Nm3 combustion of natural gas, wherein sensible heat is 8500Kcal, and the heat that steam contains (latent heat) is 950Kcal.For the available heat energy of traditional gas fired-boiler stove is exactly the sensible heat of 8500Kcal, and conventional calculating heating value of natural gas generally is basic calculation with 8500Kcal/Nm3 in the heating industry.Like this; The actual gross calorific power 9450Kcal of natural gas and the sensible heat 8500Kcal proportionate relationship of natural gas are represented with percentage: 111%; Wherein sensible heat partly accounts for 100%, and latent heat partly accounts for 11%, so for traditional gas furnace, still there are a lot of heats to waste.
The exhaust gas temperature of gas fired-boiler is generally at 120-250 ℃, and these flue gases contain the sensible heat of 8%-15% and 11% steam latent heat.Utilize left and right sides cooling water below 40 ℃ as low-temperature receiver; Through efficient gas-water heat exchanger; With the near 40-60 of flue-gas temperature ℃, the steam in the flue gas will become condensate, reclaim the latent heat and the sensible heat that contain in the flue gas to greatest extent; The condensate that the back of flue gas cooling simultaneously produces is discharged (after the completing combustion of 1Nm3 natural gas timely and effectively; Can produce 1.66kg water), and significantly reduced of the discharging of harmful substances such as CO2, CO, NOX to atmosphere, played tangible energy-conservation, consumption reduction, reduced discharging and the effect of protection boiler plant.
There are problems such as the heat exchanger flue gas flow rate is uneven, the heat exchanger resistance is big, condensed water collection difficulty in flue gas condensing waste-heat recovery device in the market.
Summary of the invention:
The purpose of the utility model is to adopt a kind of efficient flue gas condensing waste-heat recovery device, reclaims the fume afterheat of gas fired-boiler through the mode of condensation, and solves flue gas distribution inequality, big, the problem of flue gas condensing shipwreck to collect of heat exchanger resistance.
The technical scheme of the utility model is: connect boiler exhaust gas pipe (1), the box condensed water collecting box of static pressure (2), efficient gas-water heat exchanger (3), flue gas collecting box (4), smoke discharge pipe (5), cooling water inlet pipe (6), cooling water outlet pipe (7), condensate draining pipe (8) successively, form a complete system.
The utility model is through the achievement of research for many years with practice; Creatively adopt box condensed water collecting box of static pressure and the efficient gas-water heat exchanger of lower resistance; Solved that heat exchanger heating surface flue gas flow rate is uneven, the heat exchanger resistance big, the condensed water problem of easily collecting not; And make this device can directly apply to fume emission to rely on the forced air supply of combustor institute band blower fan and the boiler of stack draught fully, needn't increase air-introduced machine.
Self does not consume energy the utility model, and can save the boiler gas consumption about 10-15%, has good market popularization value.
Description of drawings:
Fig. 1. a kind of efficient flue gas condensing waste-heat recovery device sketch map
Fig. 2. the on-the-spot example schematic of installing of a kind of efficient flue gas condensing waste-heat recovery device
The specific embodiment:
The utility model device is implemented convenient, can directly be serially connected on original smoke pipe, does not influence the operation of boiler.
According to on-site actual situations; Select suitable position efficient flue gas condensing waste-heat recovery device to be concatenated on the smoke exhaust pipe (9) of gas fired-boiler (12); The inlet (1) of the box condensed water collecting box of static pressure (2) is connected with original boiler exhaust gas pipe with smoke pipe (9), and then connects efficient gas-water heat exchanger (3), flue gas collecting box (4), flue gas collection case outlet (5) successively and be connected with roofing (13) smoke exhaust pipe (10).Connect cooling water inlet pipe (6), cooling water outlet pipe (7), condensate draining pipe (8) at last, form a complete system.
The heat exchange element of efficient gas-water heat exchanger (3) adopts steel-aluminum composite fin tube, and flue gas is walked outside the pipe, and water is walked in the pipe, realizes heat exchange, and it is good to have a heat-transfer effect, corrosion resistant characteristics.
After flue gas gets into the box condensed water collecting box of static pressure (2), through the guiding device shunting, get into plenum chamber more earlier, the kinetic energy of flue gas reduces, and pressure can raise, and reaches the effect of voltage stabilizing, current-sharing.Guaranteed that flue gas evenly through the heating surface of efficient gas-water heat exchanger (3), reduces heat exchanging corner, improved the heat exchange effect.
The condensed water that the flue gas cooling procedure produces is pooled to the condensed water discharging water pipe (8) of bottom and discharges.
This device needs independently suspension and support (11), and load can not be added on original smoke pipe.
Claims (5)
1. efficient flue gas condensing waste-heat recovery device; The system that forms successively by the box condensed water collecting box of static pressure (2), efficient gas-water heat exchanger (3), flue gas collecting box (4); It is characterized in that: high-temperature flue gas directly gets into the box condensed water collecting box of static pressure (2), then evenly through efficient gas-water heat exchanger heat exchange (3), and flue gas collecting box (4); Through flue gas collecting pipe discharging (5), form a train again.
2. a kind of efficient flue gas condensing waste-heat recovery device according to claim 1; It is characterized in that: the box condensed water collecting box of static pressure (2); Can guarantee that a small amount of condensed water that the flue gas condensing process produces is pooled to the box condensed water collecting box of static pressure (2) bottom, and discharge through discharge outlet (8).
3. a kind of efficient flue gas condensing waste-heat recovery device according to claim 1; It is characterized in that: box condensed water collecting box of static pressure (2) and flue gas collecting box (4); Can play the effect of voltage stabilizing current-sharing; Guarantee that flue gas evenly through the heating surface of efficient gas-water heat exchanger (3), reduces heat exchanging corner, improve the heat exchange effect.
4. a kind of efficient flue gas condensing waste-heat recovery device according to claim 1 is characterized in that: efficient gas-water heat exchanger (3) can be cooled to 180-250 ℃ of high-temperature flue gas below 40 ℃, reclaims most obvious heat of smoke and latent heat.
5. a kind of efficient flue gas condensing waste-heat recovery device according to claim 1; It is characterized in that: efficient gas-water heat exchanger (3) crushing is lower than 30Pa; Can directly apply to fume emission and rely on the forced air supply of combustor institute band blower fan and the boiler of stack draught fully, needn't increase air-introduced machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204323757U CN202361629U (en) | 2011-11-04 | 2011-11-04 | High-efficiency fume condensing waste heat recovery device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204323757U CN202361629U (en) | 2011-11-04 | 2011-11-04 | High-efficiency fume condensing waste heat recovery device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202361629U true CN202361629U (en) | 2012-08-01 |
Family
ID=46572811
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204323757U Expired - Fee Related CN202361629U (en) | 2011-11-04 | 2011-11-04 | High-efficiency fume condensing waste heat recovery device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202361629U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104501413A (en) * | 2014-12-26 | 2015-04-08 | 中山普瑞玛实业有限公司 | Efficient flue gas condensing and waste heat recovering device and fuel gas module furnace adopting same |
| CN105293954A (en) * | 2014-07-11 | 2016-02-03 | 安徽伟豪特种玻璃有限公司 | Flue gas heating circulating device |
-
2011
- 2011-11-04 CN CN2011204323757U patent/CN202361629U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105293954A (en) * | 2014-07-11 | 2016-02-03 | 安徽伟豪特种玻璃有限公司 | Flue gas heating circulating device |
| CN104501413A (en) * | 2014-12-26 | 2015-04-08 | 中山普瑞玛实业有限公司 | Efficient flue gas condensing and waste heat recovering device and fuel gas module furnace adopting same |
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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: 20120801 Termination date: 20201104 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |