CN202648150U - Waste heat recovery device of boiler - Google Patents
Waste heat recovery device of boiler Download PDFInfo
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- CN202648150U CN202648150U CN2012202769325U CN201220276932U CN202648150U CN 202648150 U CN202648150 U CN 202648150U CN 2012202769325 U CN2012202769325 U CN 2012202769325U CN 201220276932 U CN201220276932 U CN 201220276932U CN 202648150 U CN202648150 U CN 202648150U
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Abstract
The utility model discloses a waste heat recovery device of a boiler, which includes a boiler body, a smoke discharge fan, a flue, a draught fan, a draught pipe, a primary waste heat recoverer, and a secondary heat recoverer; the primary waste heat recoverer is provided with a water tank and a radiating pipe; the water tank is provided with a steam outlet and a water supplementing port; the radiating pipe is arranged in the water tank; the radiating pipe is a circling annular pipeline; radiating fins are arranged on the outer side of the radiating pipe; one end of the radiating pipe is communicated with the flue, and the other end of the radiating pipe is communicated with the smoke discharge fan; the water tank is provided with a water return port communicated with the boiler body; the secondary heat recoverer is provided with a heat exchange box and a radiator; the heat exchange box is provided with a smoke discharge port, an air inlet and an air outlet; the radiator is arranged in the heat exchange box, and is provided with one end communicated with the smoke discharge fan and the other end communicated with the smoke discharge port; the air inlet is communicated with the draught fan; the air outlet is communicated with the draught pipe; and stop valves are arranged on all of the steam outlet, the water supplementing port and the water return port. The waste heat recovery device can improve the waste heat recovery efficiency of boiler smoke.
Description
Technical field
The utility model relates to a kind of boiler, especially relates to a kind of boiler afterheat recovering device.
Background technology
Boiler is a kind of energy device commonly used, by the heat that uses fuel combustion to produce heat-conducting medium is heated, heat-conducting medium mobile heat is passed in pipeline used focus, boiler comprises combustion chamber, heat exchanger etc., wherein fuel also is connected with air intake facility and smoke removal facility etc. when the internal combustion of combustion chamber, the air intake facility provides oxygen to fuel combustion, smoke removal facility is discharged the waste gas that fuel combustion produces, and heat-conducting medium obtains heat such as conduction oil, water etc. and by pipeline heat passed in heat exchanger; The high-temperature flue gas that boiler commonly used produces is often done and has just been emitted after simple dedusting cooling is processed, also there are some boilers that high-temperature flue gas is made a heat recovery, but compare with the heat that high-temperature flue gas carries, its heat energy can not be maximally utilised, and can cause the larger waste of the energy; In the situation of current energy supply growing tension, the energy-conservation exploitation of boiler has more and more been obtained paying attention to, produced many energy-saving schemes, this programme also is wherein a kind of.
Summary of the invention
The utility model is in order to overcome the inefficient problem of high temperature flue-gas from boiler waste heat recovery of prior art, but a kind of Effective Raise high-temperature flue gas waste heat recovery efficient is provided, indirect saving the boiler afterheat recovering device of fuel.
To achieve these goals, the utility model is by the following technical solutions: a kind of boiler afterheat recovering device, comprise boiler body, smoke exhaust fan, flue, air-introduced machine, induced duct, also comprise the one-level waste-heat recoverer, the secondary waste-heat recoverer, described one-level waste-heat recoverer is provided with water tank, radiating tube, described water tank is provided with steam (vapor) outlet, water supplement port, described radiating tube is located in the water tank, described radiating tube one end is communicated with flue, the described radiating tube other end is communicated with smoke exhaust fan, described secondary waste-heat recoverer is provided with heat exchange case, radiator, described heat exchange case is provided with exhaust opening, air inlet, the gas outlet, described radiator is located in the heat exchange case, described radiator one end is communicated with smoke exhaust fan, the described radiator other end is communicated with exhaust opening, and described air inlet is communicated with air-introduced machine, and described gas outlet is communicated with induced duct.For improving high temperature flue-gas from boiler waste heat recovery efficient, can carry out secondary or multistage recovery to the high-temperature flue gas waste heat, this programme adopts the mode of secondary recovery, at first in water tank the high-temperature flue gas waste heat being carried out the first time reclaims, utilize waste heat that water is heated into water vapour, water vapour is used again, then in heat exchange case, make also the flue gas with the part heat carry out exchange heat with the cold air that need to blast boiler, realize reclaiming the second time of waste heat, through after twice heat recovery, the heat major part of carrying in the flue gas is recovered, and flue gas can discharge after the dust removal process separately.
As preferably, described water tank is provided with water return outlet, and described water return outlet is communicated with boiler body.Except producing the used vapour with high temperature flue-gas from boiler heating, also can utilize flue gas with cool water heating after, again hot water is injected the boiler body water tank, save the boiler feedwater institute's calorific requirement of heating; In addition, to the boiler of heat-conducting oil heating, also can inject cold oil first in the boiler that reinjects after the water tank preheating, save equally boiler heat-energy.
As preferably, described radiating tube is the spiral fashion looped pipeline, and the described radiating tube outside is provided with radiating fin.Suitably increase the contact area of liquid in radiating tube and the water tank, can spiral into number row looped pipeline to radiating tube and prolong duct length, radiating tube arranged outside radiating fin again increases the radiating tube surface area in addition, can improve high-temperature flue gas in water tank with the rate of heat exchange of liquid.
Therefore, the utlity model has following beneficial effect: (1) but Effective Raise high-temperature flue gas waste heat recovery efficient; (2) energy-saving consumption-reducing of realization boiler.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Among the figure: 1, boiler body 2, smoke exhaust fan 3, flue 4, air-introduced machine 5, induced duct
6, one-level waste-heat recoverer 7, secondary waste-heat recoverer 8, water tank 9, radiating tube
10, steam (vapor) outlet 11, water supplement port 12, heat exchange case 13, radiator
14, exhaust opening 15, air inlet 16, gas outlet 17, water return outlet.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Among the embodiment as shown in Figure 1, a kind of boiler afterheat recovering device, comprise boiler body 1, smoke exhaust fan 2, flue 3, air-introduced machine 4, induced duct 5, also comprise one-level waste-heat recoverer 6, secondary waste-heat recoverer 7, one-level waste-heat recoverer 6 is provided with water tank 8, radiating tube 9, water tank 8 is provided with steam (vapor) outlet 10, water supplement port 11, radiating tube 9 is located in the water tank 8, heat radiation, 9 is the spiral fashion looped pipeline, radiating tube 9 outsides are provided with radiating fin, radiating tube 9 one ends are communicated with flue 3, radiating tube 9 other ends are communicated with smoke exhaust fan 2, water tank 8 also is provided with water return outlet 17, water return outlet 17 is communicated with boiler body 1, secondary waste-heat recoverer 7 is provided with heat exchange case 12, radiator 13, heat exchange case 12 is provided with exhaust opening 14, air inlet 15, gas outlet 16, radiator 9 is located in the heat exchange case 12, radiator 13 1 ends are communicated with smoke exhaust fan 2, radiator 13 other ends are communicated with exhaust opening 14, air inlet 15 is communicated with air-introduced machine 4, and gas outlet 16 is communicated with induced duct 5, steam (vapor) outlet 10, water supplement port 11, stop valve all is set on the water return outlet 17.
Specific implementation process is, in the boiler for producing process, this programme adopts the mode of secondary recovery high-temperature flue gas heat energy, one-level waste-heat recoverer 6 at first carries out the first time to the high-temperature flue gas waste heat and reclaims in that water tank 8 is interior, smoke exhaust fan 2 sucks high-temperature flue gas in the water tank 8 from flue 3, high-temperature flue gas utilizes waste heat that water is heated into hot water or water vapour during by radiating tube 9, open steam (vapor) outlet 10, water vapour can be inputted jet chimney and be used, utilize hot water such as need, water return outlet 17 is opened, hot water can refill in the boiler, open water supplement port 11 moisturizings during water tank 8 interior water shortage, then carry out high-temperature flue gas waste heat secondary recovery, the cold air that secondary waste-heat recoverer 7 makes also flue gas and the air-introduced machine 4 with the part heat blast boiler in heat exchange case 12 carries out exchange heat, cold air enters in the boiler after heating up, through after twice heat recovery, the heat major part of carrying in the flue gas is recovered, and flue gas can discharge after the dust removal process separately.
Claims (3)
1. boiler afterheat recovering device, comprise boiler body (1), smoke exhaust fan (2), flue (3), air-introduced machine (4), induced duct (5), it is characterized in that, also comprise one-level waste-heat recoverer (6), secondary waste-heat recoverer (7), described one-level waste-heat recoverer (6) is provided with water tank (8), radiating tube (9), described water tank is provided with steam (vapor) outlet (10), water supplement port (11), described radiating tube (9) is located in the water tank (8), described radiating tube (9) one ends are communicated with flue (3), described radiating tube (9) other end is communicated with smoke exhaust fan (2), described secondary waste-heat recoverer (7) is provided with heat exchange case (12), radiator (13), described heat exchange case (12) is provided with exhaust opening (14), air inlet (15), gas outlet (16), described radiator (13) is located in the heat exchange case (12), described radiator (13) one ends are communicated with smoke exhaust fan (2), described radiator (13) other end is communicated with exhaust opening (14), described air inlet (15) is communicated with air-introduced machine (4), and described gas outlet (16) are communicated with induced duct (5).
2. boiler afterheat recovering device according to claim 1 is characterized in that, described water tank (8) is provided with water return outlet (17), and described water return outlet (17) is communicated with boiler body (1).
3. boiler afterheat recovering device according to claim 1 and 2 is characterized in that, described radiating tube (9) is the spiral fashion looped pipeline, and described radiating tube (9) outside is provided with radiating fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202769325U CN202648150U (en) | 2012-06-13 | 2012-06-13 | Waste heat recovery device of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202769325U CN202648150U (en) | 2012-06-13 | 2012-06-13 | Waste heat recovery device of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202648150U true CN202648150U (en) | 2013-01-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202769325U Expired - Fee Related CN202648150U (en) | 2012-06-13 | 2012-06-13 | Waste heat recovery device of boiler |
Country Status (1)
| Country | Link |
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| CN (1) | CN202648150U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104197306A (en) * | 2014-09-02 | 2014-12-10 | 叶金辉 | Boiler fuel gas waste heat recovery system |
| TWI507160B (en) * | 2013-04-09 | 2015-11-11 | Masdac Co Ltd | Produce a superheated steam nozzle |
| CN109869705A (en) * | 2017-12-01 | 2019-06-11 | 河北正能锅炉设备有限公司 | A kind of New efficient energy-saving boiler |
| CN110068022A (en) * | 2018-01-23 | 2019-07-30 | 佛山市广雅金属橡胶制品有限公司 | Natural gas hot water's boiler afterheat recovering device |
-
2012
- 2012-06-13 CN CN2012202769325U patent/CN202648150U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI507160B (en) * | 2013-04-09 | 2015-11-11 | Masdac Co Ltd | Produce a superheated steam nozzle |
| CN104197306A (en) * | 2014-09-02 | 2014-12-10 | 叶金辉 | Boiler fuel gas waste heat recovery system |
| CN109869705A (en) * | 2017-12-01 | 2019-06-11 | 河北正能锅炉设备有限公司 | A kind of New efficient energy-saving boiler |
| CN110068022A (en) * | 2018-01-23 | 2019-07-30 | 佛山市广雅金属橡胶制品有限公司 | Natural gas hot water's boiler afterheat recovering device |
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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: 20130102 Termination date: 20150613 |
|
| EXPY | Termination of patent right or utility model |