CN201463277U - Condensation-type smoke-gas surplus-heat recycling device - Google Patents
Condensation-type smoke-gas surplus-heat recycling device Download PDFInfo
- Publication number
- CN201463277U CN201463277U CN2009201232157U CN200920123215U CN201463277U CN 201463277 U CN201463277 U CN 201463277U CN 2009201232157 U CN2009201232157 U CN 2009201232157U CN 200920123215 U CN200920123215 U CN 200920123215U CN 201463277 U CN201463277 U CN 201463277U
- Authority
- CN
- China
- Prior art keywords
- heat exchanger
- condensing
- condensation
- flue gas
- heat
- 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 - Lifetime
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
- 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]
Landscapes
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The utility model relates to a condensation-type smoke-gas surplus-heat recycling device, which comprises a heat exchanger, wherein the heat exchanger adopts a fin-type condensation heat exchanger which is formed by helical fin tube bundles, the upper part of the fin tube bundle is provided with a cooling water inlet, and the lower part of the fin tube bundle is provided with a hot water outlet; and the lower part of the condensation heat exchanger is communicated with a smoke-gas passage, and the bottom part of the condensation heat exchanger is provided with a blow-off pipe. The energy-saving device can recycle the surplus heat of the smoke gas in high efficiency, can prevent the acid corrosion of the condensation dew of the discharged smoke and can supply the rust-free clean hot water; compared with the straight pipe, the helical fin tube with the heat conduction being doubled is used, and the size and the weight are reduced by 50 percent; and the anti-corrosion stainless steel material prolongs the service life of the device; and the device can be assembled on the upper part of a boiler, so the occupation space can be reduced, and the condensed water which is generated on the heat transfer surface can be naturally discharged.
Description
(1) technical field
The utility model relates to a kind of condensing flue gas waste heat recovery apparatus.
(2) background technology
Contain a large amount of protiums in the fuel, burning produces a large amount of water vapours.Every 1NM
3Can produce the 1.55KG water vapour behind the combustion of natural gas, have the considerable latent heat of vaporization, be approximately 3700KJ, account for natural gas low heat valve about 10%.When exhaust gas temperature was higher, water vapour can not condensation be emitted heat, and with fume emission, heat is wasted.Simultaneously, high-temperature flue gas is also taken away a large amount of sensible heats, forms bigger flue gas loss together.
As 1NM
3Combustion of natural gas produces the about 10.3NM of amount of theoretical flue gas
3(approximately 12.5KG).With excess air coefficient 1.3 is example, produces flue gas 14NM
3(approximately 16.6KG).Get flue-gas temperature and be reduced to 70 ℃ for 200 ℃, emit the about 1600KJ of physics sensible heat, the water vapour condensation rate gets 50%, emits the about 1850KJ of the latent heat of vaporization, amounts to heat release 3450KJ, is 10% of natural gas low heat valve approximately.If getting 80% flue gas enters heat-energy recovering apparatus, can improve the heat energy utilization rate more than 8%, save gas fuel nearly 10%.
(3) utility model content
Technical problem to be solved in the utility model is to provide a kind of thermal efficiency height, the condensing flue gas waste heat recovery apparatus of energy-saving safe.
A kind of condensing flue gas waste heat recovery apparatus comprises heat exchanger, and described heat exchanger adopts the finned condensing heat exchanger that is made of the helical fin tube bank, and finned-tube bundle top is provided with the cooling water inlet, and the finned-tube bundle bottom is provided with hot water outlet; The condensing heat exchanger bottom is communicated with exhaust gases passes, and the condensing heat exchanger bottom is provided with blow-off pipe.
Preferably, be provided with blower fan above the described condensing heat exchanger.
Preferably, described cooling water inlet connects centrifugal water pump.
Preferably, described helical fin tube bank is equilateral triangle stagger arrangement layout.
Preferably, described helical fin tube bank is stainless steel.
Preferably, described blow-off pipe is the bend pipe of U-shaped structure.The bend pipe effect mainly is to derive the moisture that condensation is got off, and intercepts flue gas.Condensed water is discharged in the neutralization pond through blow-off pipe, with the caustic lime water neutralization in the neutralization pond.
The utility model adopts spiral fin coil, can utilize the extended surface of fin on the one hand, increases the heat convection area greatly; On the other hand, fin can be torn and be condensate in its surperficial liquid film, reduces the thermal resistance of bringing because of the flow boundary layer thickening, increases surface coefficient of heat transfer, strengthens heat convection.The tube bank stagger arrangement is arranged and is compared along the row layout, also can obtain the higher coefficient of heat transfer, plays enhanced heat exchange, reduces the effect of metal wastage.
The utility model utilizes the lower water cooling flue gas of temperature, realizes that flue-gas temperature reduces, simultaneously water vapour condensation in the flue gas, obvious heat of smoke discharges and water recovery latent heat discharges, and the water in the heat exchanger absorbs heat and is heated, and realizes energy recovery, the raising boiler thermal output.
The new beneficial effect of this practicality is:
1, but this energy-conservation device high efficiency reclaims fume afterheat, the sour corrosion and the rustless clear hot-water of supply of the dewfall that prevents to discharge fume;
2, compare with straight tube, used heat transfer property to exceed spiral fin coil more than 2 times, size reduces to 1/2 with weight; Corrosion resistant stainless steel has prolonged its service life;
3, this device can be assembled in upper boiler, dwindles and occupies the space, and the condensate water that is created on the heat-transfer area also can be discharged naturally.
(4) description of drawings
Fig. 1 is the structural representation of the utility model condensing flue gas waste heat recovery apparatus.
Fig. 2 is the structural representation of the finned condensing heat exchanger of the utility model.
Fig. 3 is the installation diagram of the finned condensing heat exchanger of the utility model.
(5) specific embodiment
With reference to Fig. 1, Fig. 2, Fig. 3, a kind of condensing flue gas waste heat recovery apparatus comprises heat exchanger 1, and described heat exchanger 1 adopts by the helical fin tube bank 8 finned condensing heat exchangers that constitute, finned-tube bundle top is provided with cooling water inlet 2, and the finned-tube bundle bottom is provided with hot water outlet 3; Condensing heat exchanger 1 bottom is communicated with exhaust gases passes 4, and condensing heat exchanger 1 bottom is provided with blow-off pipe 7.
Described condensing heat exchanger 1 top is provided with blower fan 6.
Described cooling water inlet 2 connects centrifugal water pump 5.
Described helical fin tube bank 8 is the equilateral triangle stagger arrangement and arranges.
Described blow-off pipe 7 is the bend pipe of U-shaped structure.
Described helical fin tube bank 8 is a stainless steel.
When the utility model used, high-temperature flue gas fed condensing heat exchangers 1 bottom by exhaust gases passes 4, and cold water feeds cooling water inlets 2 by centrifugal water pump 5, cold water in finned-tube bundle with high-temperature flue gas generation heat exchange, the hot water of generation is discharged by hot water outlet 3.
What need understand is: though the foregoing description is to the utility model detailed explanation of contrasting; but these explanations are just to simple declaration of the present utility model; rather than to restriction of the present utility model; any utility model that does not exceed in the utility model connotation is created, and all falls in the protection domain of the present utility model.
Claims (6)
1. a condensing flue gas waste heat recovery apparatus comprises heat exchanger, it is characterized in that: described heat exchanger adopts the finned condensing heat exchanger that is made of the helical fin tube bank, and finned-tube bundle top is provided with the cooling water inlet, and the finned-tube bundle bottom is provided with hot water outlet; The condensing heat exchanger bottom is communicated with exhaust gases passes, and the condensing heat exchanger bottom is provided with blow-off pipe.
2. condensing flue gas waste heat recovery apparatus according to claim 1 is characterized in that: described condensing heat exchanger top is provided with blower fan.
3. condensing flue gas waste heat recovery apparatus according to claim 1 is characterized in that: described cooling water inlet connects centrifugal water pump.
4. according to the described condensing flue gas waste heat recovery apparatus of one of claim 1～3, it is characterized in that: described helical fin tube bank is the equilateral triangle stagger arrangement and arranges.
5. condensing flue gas waste heat recovery apparatus according to claim 1 is characterized in that: described blow-off pipe is the bend pipe of U-shaped structure.
6. condensing flue gas waste heat recovery apparatus according to claim 1 is characterized in that: described helical fin tube bank is stainless steel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201232157U CN201463277U (en) | 2009-06-25 | 2009-06-25 | Condensation-type smoke-gas surplus-heat recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201232157U CN201463277U (en) | 2009-06-25 | 2009-06-25 | Condensation-type smoke-gas surplus-heat recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201463277U true CN201463277U (en) | 2010-05-12 |
Family
ID=42390628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201232157U Expired - Lifetime CN201463277U (en) | 2009-06-25 | 2009-06-25 | Condensation-type smoke-gas surplus-heat recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201463277U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519278A (en) * | 2011-12-15 | 2012-06-27 | 清华大学 | Heat exchanger capable of recycling heat from acidic gas containing dust |
| WO2014044205A1 (en) * | 2012-09-21 | 2014-03-27 | 苏州成强换热器有限公司 | Forced spiral finned coil and finned serpentine coil condensation heat-supplying heat exchanger |
| CN106352362A (en) * | 2016-08-23 | 2017-01-25 | 苏州必信空调有限公司 | Smoke-waste-heat recovery device with perpendicular low-resistance cooling system |
-
2009
- 2009-06-25 CN CN2009201232157U patent/CN201463277U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102519278A (en) * | 2011-12-15 | 2012-06-27 | 清华大学 | Heat exchanger capable of recycling heat from acidic gas containing dust |
| WO2014044205A1 (en) * | 2012-09-21 | 2014-03-27 | 苏州成强换热器有限公司 | Forced spiral finned coil and finned serpentine coil condensation heat-supplying heat exchanger |
| US9797622B2 (en) | 2012-09-21 | 2017-10-24 | Suzhou CQ Heat Exchanger Co., Ltd. | Coil and serpentine bent fin tube condensing heat exchanger |
| CN106352362A (en) * | 2016-08-23 | 2017-01-25 | 苏州必信空调有限公司 | Smoke-waste-heat recovery device with perpendicular low-resistance cooling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102635945B (en) | Through-flow type narrow-clearance integral condensation hot-water boiler | |
| WO2014044208A1 (en) | Forced spiral finned coil condensation heat-supplying heat exchanger | |
| CN105793653B (en) | heat exchanger for heating boiler | |
| CN106524510A (en) | Boiler flue gas waste heat recycling device | |
| CN201072309Y (en) | Heat recovery device for boiler flue gas | |
| CN202253560U (en) | Integrated condensation steam boiler | |
| CN201463277U (en) | Condensation-type smoke-gas surplus-heat recycling device | |
| CN201302291Y (en) | Combination boiler condenser | |
| CN201637072U (en) | Condensing gas water heater with pulse heat pipes | |
| CN202521859U (en) | Tubular condensation boiler | |
| CN204612167U (en) | A kind of vacuum hot water boiler of built-in condenser | |
| CN201129867Y (en) | Flue gas condensing type gas water heater | |
| CN205156345U (en) | Novel condenser | |
| CN212339199U (en) | Boiler system for cleaning and efficiently recycling heat energy | |
| CN200946899Y (en) | High-efficiency energy-saving gas water heater | |
| CN201028494Y (en) | Environment-friendly energy-saving boiler group | |
| CN203797949U (en) | Integrated membrane wall type condensing vacuum hot water boiler | |
| CN202902248U (en) | Boiler with flue gas condensed waste heat recovery function | |
| CN102278818B (en) | Condensation heat exchanger of gas water heater | |
| CN2637909Y (en) | Condensity fuel oil and gas boiler | |
| RU2333432C1 (en) | Condensation universal water-heating installation of external accommodation | |
| CN200961869Y (en) | Condensation type heat exchanger | |
| CN2921698Y (en) | Integrated condensation boiler | |
| CN212870235U (en) | Gas boiler condenser for recycling flue gas | |
| CN2637984Y (en) | Smoke condenser |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100512 |
|
| CX01 | Expiry of patent term |