CN209541505U - A kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger - Google Patents
A kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger Download PDFInfo
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- CN209541505U CN209541505U CN201822204577.0U CN201822204577U CN209541505U CN 209541505 U CN209541505 U CN 209541505U CN 201822204577 U CN201822204577 U CN 201822204577U CN 209541505 U CN209541505 U CN 209541505U
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- change heat
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- smoke
- waste heat
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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
- 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
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Abstract
The utility model discloses a kind of high-efficiency boiler waste heat recovering devices with complex phase-change heat exchanger, including smoke discharging pipe, the smoke discharging pipe is connected with one end of cloth smoke box, the other end of the cloth smoke box is connected with smoke evacuation branch pipe, the smoke evacuation branch pipe passes through the heat exchanging chamber of the first phase-change heat-exchanger and the second phase-change heat-exchanger, the top of first phase-change heat-exchanger is connected with the bottom of second phase-change heat-exchanger, between be connected with gas bag；Utility model has the advantages that utilization rate of waste heat is high, structure is simple, easy to repair, and flue gas waste heat recovery effect is good, has saved energy.
Description
Technical field
The utility model relates to a kind of waste-heat recovery device, specifically a kind of boiler residual with complex phase-change heat exchanger
Hot high efficiente callback device, belongs to waste-heat recovery device field.
Background technique
As in flue gas contain higher concentration in the form of flying dust existing for solid particle, easily cause the abrasion of heat exchanger；
In addition, also containing the sulfuric acid vapor of higher concentration in flue gas, if too low, the water vapour and sulfuric acid in flue gas of flue-gas temperature drop
Steam, which combines, to cause low-temperature corrosion to equipment；Secondly, containing a large amount of flying dust in flue gas, it is easy to be deposited on heat exchanger
On, the thermal resistance of heat exchanger is caused, the heat exchange efficiency of heat exchanger is reduced.Entitled " etch-proof residual heat from boiler fume recovery system "
Application No. is the Chinese utility model patents of " 201721892246.X " to disclose a kind of etch-proof residual heat from boiler fume recycling
The top of system, including grate furnace, high temperature demineralized water and drum, grate furnace is equipped with the first combustion chamber, the side of the first combustion chamber
It is successively arranged the second combustion chamber, third combustion chamber and the 4th combustion chamber, the top connection of the first combustion chamber and the second combustion chamber, the
Two combustion chambers are connected to three-barreled bottom, third combustion chamber is connected to the top of the 4th combustion chamber；In third combustion chamber
Equipped with heat exchanger；It is equipped with pipeline in 4th combustion chamber, one end of pipeline passes through the 4th combustion chamber connection high temperature demineralized water, another
End connects drum across the 4th combustion chamber, and drum is equipped with steam (vapor) outlet, and the lower part of the 4th combustion chamber is equipped with smoke outlet, the height
The temperature of warm demineralized water is between 80 DEG C to 90 DEG C.However the apparatus structure is complicated, flue gas waste heat recovery effect is poor, UTILIZATION OF VESIDUAL HEAT IN
Rate is lower.
Summary of the invention
To solve the above-mentioned problems, the utility model devises a kind of boiler afterheat with complex phase-change heat exchanger and efficiently returns
Receiving apparatus, utilization rate of waste heat is high, and structure is simple, and easy to repair, flue gas waste heat recovery effect is good, has saved energy.
The technical solution of the utility model are as follows:
A kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger, including smoke discharging pipe, the smoke discharging pipe
It is connected with one end of cloth smoke box, the other end of the cloth smoke box is connected with several smoke evacuation branch pipes, and the smoke evacuation branch pipe passes through
The heat exchanging chamber of first phase-change heat-exchanger and the second phase-change heat-exchanger, if being increased since smoke distribution is into dry flue gas branch pipe
Heat exchange area, improves heat exchange efficiency, and utilization rate of waste heat is high, has saved energy, the top of first phase-change heat-exchanger with
The bottom of second phase-change heat-exchanger is connected, between be connected with gas bag, the first phase-change heat-exchanger and second are made by gas bag
Phase-change heat-exchanger is balanced, and improves exhaust-heat absorption effect.
Disturbed flow pipe is connected between the cloth smoke box and the smoke evacuation branch pipe, the disturbed flow pipe is flared structure, boiler
The flue gas of discharge enters cloth smoke box, can be disturbed, can be sufficiently exchanged heat to air-flow by disturbed flow pipe.
The disturbed flow pipe is pressed on the smoke evacuation branch pipe by sleeve, can be taken off and replace flow-disturbing by dismounting sleeve
Part, convenient for the use of disturbed flow pipe.The disturbed flow pipe is connect with casing threads, and described sleeve pipe is threadedly coupled with the smoke evacuation branch pipe,
Maintenance is facilitated to replace.
First phase-change heat-exchanger and the second phase-change heat-exchanger is equipped with circulation water inlet and circulating water outlet.
The arrival end of the cloth smoke box is equipped with filtrating equipment of flue gas, for filtering the impurity such as the dust in flue gas.
The smoke evacuation branch pipe is bellows or spiral coil, improves heat transfer effect.
The surface of the smoke evacuation branch pipe is equipped with heat exchange fin, good effect of heat exchange.
Utility model has the advantages that utilization rate of waste heat is high, structure is simple, easy to repair, flue gas waste heat recovery effect
It is good, save energy.
The utility model is described in further detail with reference to the accompanying drawings and examples.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model embodiment.
Specific embodiment
The preferred embodiment of the utility model is illustrated below, it should be understood that preferred embodiment described herein
It is only used for describing and explaining the present invention, is not used to limit the utility model.
Embodiment 1
As shown in Figure 1, a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger, including smoke discharging pipe 1, institute
It states smoke discharging pipe 1 to be connected with one end of cloth smoke box 2, the other end of the cloth smoke box 2 is connected with several smoke evacuation branch pipes 3, institute
State smoke evacuation branch pipe 3 pass through the first phase-change heat-exchanger 4 and the second phase-change heat-exchanger 5 heat exchanging chamber, due to smoke distribution arrived it is several
In flue gas branch pipe, heat exchange area is increased, improves heat exchange efficiency, utilization rate of waste heat is high, has saved energy, first phase
The top for becoming heat exchanger 4 is connected with the bottom of second phase-change heat-exchanger 5, between equipped with gas bag 6, make the by gas bag 6
One phase-change heat-exchanger and the second phase-change heat-exchanger are balanced, and improve exhaust-heat absorption effect.
Disturbed flow pipe is connected between the cloth smoke box 2 and the smoke evacuation branch pipe 3, the disturbed flow pipe is flared structure, pot
The flue gas that fire grate goes out enters cloth smoke box, can be disturbed, can be sufficiently exchanged heat to air-flow by disturbed flow pipe.
The disturbed flow pipe is pressed on the smoke evacuation branch pipe by sleeve, can be taken off and replace flow-disturbing by dismounting sleeve
Part, convenient for the use of disturbed flow pipe.The disturbed flow pipe is connect with casing threads, and described sleeve pipe is threadedly coupled with the smoke evacuation branch pipe,
Maintenance is facilitated to replace.
First phase-change heat-exchanger and the second phase-change heat-exchanger is equipped with circulation water inlet and circulating water outlet.
The arrival end of the cloth smoke box is equipped with filtrating equipment of flue gas, for filtering the impurity such as the dust in flue gas.
The smoke evacuation branch pipe is bellows or spiral coil, improves heat transfer effect.
The surface of the smoke evacuation branch pipe is equipped with heat exchange fin, good effect of heat exchange.
Claims (8)
1. a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger, it is characterised in that: described including smoke discharging pipe
Smoke discharging pipe is connected with one end of cloth smoke box, and the other end of the cloth smoke box is connected with several smoke evacuation branch pipes, the smoke evacuation
Branch pipe pass through the first phase-change heat-exchanger and the second phase-change heat-exchanger heat exchanging chamber, the top of first phase-change heat-exchanger with it is described
The bottom of second phase-change heat-exchanger is connected, between be connected with gas bag.
2. a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger according to claim 1, feature exist
In: disturbed flow pipe is connected between the cloth smoke box and the smoke evacuation branch pipe, the disturbed flow pipe is flared structure.
3. a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger according to claim 2, feature exist
In: the disturbed flow pipe is pressed on the smoke evacuation branch pipe by sleeve.
4. a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger according to claim 3, feature exist
In: the disturbed flow pipe is connect with casing threads, and described sleeve pipe is threadedly coupled with the smoke evacuation branch pipe.
5. a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger according to claim 1, feature exist
In: first phase-change heat-exchanger and the second phase-change heat-exchanger is equipped with circulation water inlet and circulating water outlet.
6. a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger according to claim 1, feature exist
In: the arrival end of the cloth smoke box is equipped with filtrating equipment of flue gas.
7. a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger according to claim 1, feature exist
In: the smoke evacuation branch pipe is bellows or spiral coil.
8. a kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger according to claim 1, feature exist
In: the surface of the smoke evacuation branch pipe is equipped with heat exchange fin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822204577.0U CN209541505U (en) | 2018-12-26 | 2018-12-26 | A kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822204577.0U CN209541505U (en) | 2018-12-26 | 2018-12-26 | A kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209541505U true CN209541505U (en) | 2019-10-25 |
Family
ID=68266713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822204577.0U Active CN209541505U (en) | 2018-12-26 | 2018-12-26 | A kind of high-efficiency boiler waste heat recovering device with complex phase-change heat exchanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209541505U (en) |
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2018
- 2018-12-26 CN CN201822204577.0U patent/CN209541505U/en active Active
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