CN2689125Y - Waste heat recovering apparatus of boiler - Google Patents
Waste heat recovering apparatus of boiler Download PDFInfo
- Publication number
- CN2689125Y CN2689125Y CN 200420049576 CN200420049576U CN2689125Y CN 2689125 Y CN2689125 Y CN 2689125Y CN 200420049576 CN200420049576 CN 200420049576 CN 200420049576 U CN200420049576 U CN 200420049576U CN 2689125 Y CN2689125 Y CN 2689125Y
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- heat exchanger
- boiler
- heat
- water
- waste
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Abstract
The utility model relates to a waste heat recovering apparatus of boilers which belongs to the technical field of an energy resource apparatus. The apparatus comprises a heat exchanger, a heat exchange tube and a drain valve. The heat exchanger is placed in the discharge flue of the boiler, and the heat exchange tube is arranged in the heat exchanger in parallel; the upper and lower ends of the heat exchange tube are respectively communicated with a boiler flue; the inlet and the outlet of recirculated water are arranged on the heat exchanger, and a drain tube is placed at the lower part of the heat exchanger. The waste heat recovering apparatus of the boilers provided by the utility model can make the exhaust temperature of boiler smoke gas be below 100 DEG C, and can make the latent heat obtain sufficient recovering after the smoke gas is condensed; when the smoke gas is condensed, a portion of harmful substances is dissolved in the water formed by condensing water vapor, the waste water can be exhausted after processing, and therefore, the pollution to atmosphere can be reduced. Therefore, the apparatus utilizes the waste heat of the boiler and is favorable to environment protection, and generally the heat efficiency of the boiler can be raised by 10-15 percent.
Description
Technical field
The utility model relates to a kind of boiler afterheat recovering device, belongs to the energy resource apparatus and technology field.
Background technology
In order to realize that heat supply and life use hot water, need be with a good heating system that comprises boiler, when the fuel in the boiler (natural gas, oil, coal) burns, emit heat and carry out and the heat exchange of working media (water).The structure of general gas fired-boiler as shown in Figure 1, among Fig. 1, the 1st, burner, the 2nd, boiler, the 3rd, chimney, its discharged flue gas temperature is about 150～180 ℃.Have a large amount of heats in the flue gas that is discharged, the latent heat of vaporization in the steam of flue gas is very considerable, is example with 2,520,000 KJ/ hours small gas boilers, the about 800～1000m of fume emission per hour during operate as normal
3, contain the 200 kg of water steams of having an appointment in the flue gas.The steam transforming that per kilogram is 100 ℃ is that 100 ℃ of water can discharge the 2264KJ heat.Therefore reclaiming the latent heat of vaporization has considerable economic value.
Summary of the invention
The purpose of this utility model is to propose a kind of boiler afterheat recovering device, improves the structure of existing boiler afterheat recovering device, to improve the thermal efficiency of boiler.
The boiler afterheat recovering device that the utility model proposes comprises heat exchanger, heat exchanger tube and blowoff valve.Heat exchanger places the smoke outlet flue of boiler, and heat exchanger tube is parallel in the heat exchanger, and the upper and lower end of heat exchanger tube is connected with boiler flue respectively, and heat exchanger is provided with the recirculated water import and export, and described blow-off pipe places the heat exchanger bottom.
The boiler afterheat recovering device that the utility model proposes, can make the exhaust temperature of boiler smoke hang down 100 ℃ of whats, latent heat is fully reclaimed after making flue gas condensing, and in the water that wherein the molten what water vapor condensation of a part of harmful substance forms during flue gas condensing, this waste water can discharge after treatment, thereby reduces the pollution to atmosphere.Therefore this device has not only utilized the waste heat of boiler, generally can improve boiler thermal output 10～15%, and help environmental protection.
Description of drawings
Fig. 1 is the structural representation of existing gas fired-boiler.
Fig. 2 is the structural representation of the boiler afterheat recovering device that the utility model proposes.
Fig. 3 and Fig. 4 are respectively two kinds of different structure forms of heat exchanger tube in this device.
Among Fig. 1 to Fig. 4, the 1st, burner, the 2nd, burner boiler, the 3rd, chimney, the 4th, heat exchanger tube, the 5th, heat exchanger, the 6th, heat exchanger outlet pipe, the 7th, blow-off pipe, the 8th, heat exchanger water inlet pipe, the 9th, the local circular heat exchanger tube that flattens, the 10th, the local corrugated heat exchanger tube that flattens, the 11st, blow-off pipe.
The specific embodiment
The boiler afterheat recovering device that the utility model proposes comprises heat exchanger 5, heat exchanger tube 4 and blow-off pipe 11.Heat exchanger 5 places the smoke outlet flue 3 of boiler 2, and heat exchanger tube 4 is parallel in the heat exchanger 5, and the upper and lower end of heat exchanger tube 4 is connected with boiler flue 3 respectively, and heat exchanger is provided with recirculated water import and export 8 and 6.Blow-off pipe 11 places heat exchanger 5 bottoms.
The high-temperature flue gas that boiler 2 is discharged enters the waste-heat recovery device of the utility model design, during by heat exchanger tube 4, the recirculated water outer with pipe carries out heat exchange, and the heat exchange water is entered by water inlet 8, derived by delivery port 6, the water source that the water that has heated up of derivation can be used as boiler enters boiler.
Heat exchanger tube in this device can be the local circular heat exchanger tube that flattens, and shown in 9 among Fig. 3, also can be the local corrugated heat exchanger tube that flattens, shown in 10 among Fig. 4.
Owing to adopt bellows, the continuous disturbance that is subjected to tube wall in the pipe that is flowing in of flue gas forms vortex, the laminarity that destroys flue gas forms turbulent flow, help the heat exchange between flue gas and the tube wall, steam in the flue gas discharges latent heat and becomes water, heat is passed to the outer WATER AS FLOW MEDIUM of pipe by tube wall, is sent to boiler after WATER AS FLOW MEDIUM is heated up, and has improved boiler thermal output.
Claims (1)
1, a kind of boiler afterheat recovering device, it is characterized in that this device comprises heat exchanger, heat exchanger tube and blowoff valve, described heat exchanger places the smoke outlet flue of boiler, heat exchanger tube is parallel in the heat exchanger, the upper and lower end of heat exchanger tube is connected with boiler flue respectively, heat exchanger is provided with the recirculated water import and export, and described blow-off pipe places the heat exchanger bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420049576 CN2689125Y (en) | 2004-04-23 | 2004-04-23 | Waste heat recovering apparatus of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420049576 CN2689125Y (en) | 2004-04-23 | 2004-04-23 | Waste heat recovering apparatus of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2689125Y true CN2689125Y (en) | 2005-03-30 |
Family
ID=34672298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420049576 Expired - Fee Related CN2689125Y (en) | 2004-04-23 | 2004-04-23 | Waste heat recovering apparatus of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2689125Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128445B (en) * | 2010-01-15 | 2012-10-10 | 华北电力科学研究院有限责任公司 | Method, device and system for recycling moisture and latent heat of vaporization in lignite smoke |
| CN103471407A (en) * | 2013-09-06 | 2013-12-25 | 南通曼特威金属材料有限公司 | Smelting furnace waste heat recovery system for aluminum ingot production |
| CN106123614A (en) * | 2016-07-21 | 2016-11-16 | 太仓贝斯特机械设备有限公司 | A kind of environment-friendly type waste heat reclaiming flue for mould heating furnace |
| CN107388839A (en) * | 2017-08-28 | 2017-11-24 | 太仓贝斯特机械设备有限公司 | Mould heating furnace residual neat recovering system |
-
2004
- 2004-04-23 CN CN 200420049576 patent/CN2689125Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102128445B (en) * | 2010-01-15 | 2012-10-10 | 华北电力科学研究院有限责任公司 | Method, device and system for recycling moisture and latent heat of vaporization in lignite smoke |
| CN103471407A (en) * | 2013-09-06 | 2013-12-25 | 南通曼特威金属材料有限公司 | Smelting furnace waste heat recovery system for aluminum ingot production |
| CN106123614A (en) * | 2016-07-21 | 2016-11-16 | 太仓贝斯特机械设备有限公司 | A kind of environment-friendly type waste heat reclaiming flue for mould heating furnace |
| CN107388839A (en) * | 2017-08-28 | 2017-11-24 | 太仓贝斯特机械设备有限公司 | Mould heating furnace residual neat recovering system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050330 Termination date: 20130423 |