CN215372503U - Supporting sludge incineration waste heat recovery boiler structure - Google Patents
Supporting sludge incineration waste heat recovery boiler structure Download PDFInfo
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- CN215372503U CN215372503U CN202121773842.2U CN202121773842U CN215372503U CN 215372503 U CN215372503 U CN 215372503U CN 202121773842 U CN202121773842 U CN 202121773842U CN 215372503 U CN215372503 U CN 215372503U
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- hearth
- boiler
- smoke
- heat exchange
- exchange coil
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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
Abstract
The utility model discloses a matched sludge incineration waste heat recovery boiler structure, which comprises a first hearth and a second hearth, wherein the first hearth is arranged at the upper part of the first hearth; the air inlet end of the first hearth corresponds to the smoke inlet, the air outlet end of the first hearth is connected to the air inlet end of the second hearth through the smoke turning bend, and the air outlet end of the second hearth corresponds to the smoke outlet; the flag type heating surface is in heat conduction connection with the water-cooled walls of the first hearth and the second hearth; a steam soot blower is arranged on the inner wall of the second hearth; the boiler comprises a first hearth, a second hearth, a boiler barrel, a heat exchange coil, a water circulation pipeline and an economizer, wherein the top of the second hearth is provided with the boiler barrel, the boiler barrel is connected with the water circulation pipelines of the water-cooled walls of the first hearth and the second hearth, the heat exchange coil is arranged inside the boiler barrel, and the heat exchange coil is connected to an inlet header of the economizer through the water circulation pipeline.
Description
Technical Field
The utility model relates to the technical field of boilers, in particular to a matched sludge incineration waste heat recovery boiler structure.
Background
The waste heat recovery boiler is a boiler which heats water to a certain temperature by using waste heat of wastes in various industrial processes and heat generated after combustible substances are combusted; the waste heat recovery boiler can produce hot water or steam for other sections to use through waste heat recovery; when the heat energy that produces is burned bubbling fluidized bed sludge, because the waste characteristic leads to ash content in the flue gas very big, the smoke and dust is piled up on the inside heat transfer structure surface of boiler very easily, influences the efficiency of heat exchange, and the process requires exhaust gas temperature to need to be more than 210 ℃ simultaneously, consequently need control its inside heat transfer structure's heat exchange efficiency.
SUMMERY OF THE UTILITY MODEL
Utility model purpose: in order to overcome the defects in the prior art, the utility model provides a matched sludge incineration waste heat recovery boiler structure which can prevent smoke dust from being accumulated on the surface of a heat exchange structure and can control and adjust the heat exchange efficiency of the heat exchange structure in the boiler.
The technical scheme is as follows: in order to achieve the purpose, the matched sludge incineration waste heat recovery boiler structure comprises a first hearth and a second hearth; the air inlet end of the first hearth corresponds to the smoke inlet, the air outlet end of the first hearth is connected to the air inlet end of the second hearth through the smoke turning bend, and the air outlet end of the second hearth corresponds to the smoke outlet; the flag type heating surface is in heat conduction connection with the water-cooled walls of the first hearth and the second hearth; a steam soot blower is arranged on the inner wall of the second hearth; the boiler comprises a first hearth, a second hearth, a boiler barrel, a heat exchange coil, a water circulation pipeline and an economizer, wherein the top of the second hearth is provided with the boiler barrel, the boiler barrel is connected with the water circulation pipelines of the water-cooled walls of the first hearth and the second hearth, the heat exchange coil is arranged inside the boiler barrel, and the heat exchange coil is connected to an inlet header of the economizer through the water circulation pipeline.
Furthermore, a deaerator is arranged at the water supply end of the heat exchange coil.
Has the advantages that: the matched sludge incineration waste heat recovery boiler structure can avoid accumulation of smoke dust on the surface of the heat exchange structure, and can control and adjust the heat exchange efficiency of the heat exchange structure in the boiler, and the matched sludge incineration waste heat recovery boiler structure comprises the following technical effects:
1) the smoke-turning bend is arranged to turn smoke for multiple times, so that sedimentation of smoke dust is facilitated, and meanwhile, a steam soot blower is arranged to blow air irregularly to blow off the smoke dust on the surfaces of the flag-type heating surface and the economizer, so that accumulation of the smoke dust is avoided;
2) the boiler barrel is arranged to heat the heat exchange coil pipe by utilizing the recovered heat energy, and the heat exchange coil pipe heats the economizer to a certain degree so as to reduce the heat exchange efficiency of the economizer on the flue gas, ensure that the temperature of the flue gas reaching the smoke outlet is kept above 210 ℃, and meet the process requirements.
Drawings
FIG. 1 is a block diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings.
As shown in the attached figure 1: a matched sludge incineration waste heat recovery boiler structure comprises a first hearth 1 and a second hearth 2; the gas inlet end of the first hearth 1 corresponds to the smoke inlet 11, the gas outlet end of the first hearth 1 is connected to the gas inlet end of the second hearth 2 through the smoke turning bend 3, and the gas outlet end of the second hearth 2 corresponds to the smoke outlet 21; the second hearth 2 is provided with a flag type heating surface 22 and an economizer 23, and the flag type heating surface 22 is in heat conduction connection with the water-cooled walls 12 of the first hearth 1 and the second hearth 2; a steam soot blower 24 is arranged on the inner wall of the second hearth 2; a drum 4 is arranged at the top of the second hearth 2, the drum 4 is connected with water circulation pipelines of the water-cooled walls 12 of the first hearth 1 and the second hearth 2, a heat exchange coil 41 is arranged inside the drum 4, and the heat exchange coil 41 is connected to an inlet header of the economizer 23 through the water circulation pipeline; the smoke inlet 11 introduces smoke generated by sludge incineration of the bubbling fluidized bed into the first hearth 1, and the smoke can be turned for multiple times by the smoke turning curve 3 due to the large ash content of the smoke, so that the settlement of the smoke is facilitated, and meanwhile, in order to avoid excessive smoke from gathering on the surfaces of the flag-type heating surface 22 and the economizer 23 and influencing the heat exchange efficiency, the steam soot blower 24 is arranged to blow air irregularly so as to blow off the smoke on the surfaces of the flag-type heating surface 22 and the economizer 23; the flag-type heating surface 22 transmits heat energy exchanged with the flue gas to the boiler barrel 4, the boiler barrel 4 transmits the heat energy to other equipment for reutilization, meanwhile, the boiler barrel 4 utilizes part of the heat energy to heat the heat exchange coil 41, the heat exchange coil 41 heats the economizer 23 to a certain degree, so that the heat exchange efficiency of the economizer 23 on the flue gas is reduced, the temperature of the flue gas reaching the smoke outlet 21 is guaranteed to be kept above 210 ℃, and the process requirements are met.
And a deaerator is arranged at the water supply end of the heat exchange coil 41.
The above description is only of the preferred embodiments of the present invention, and it should be noted that: it will be apparent to those skilled in the art that various modifications and adaptations can be made without departing from the principles of the utility model and these are intended to be within the scope of the utility model.
Claims (2)
1. The utility model provides a supporting sludge incineration waste heat recovery boiler structure which characterized in that: comprises a first hearth (1) and a second hearth (2); the gas inlet end of the first hearth (1) corresponds to the smoke inlet (11), the gas outlet end of the first hearth (1) is connected to the gas inlet end of the second hearth (2) through the smoke turning bend (3), and the gas outlet end of the second hearth (2) corresponds to the smoke outlet (21); the flag type heating surface (22) is connected with the water-cooled walls (12) of the first hearth (1) and the second hearth (2) in a heat conduction mode; a steam soot blower (24) is arranged on the inner wall of the second hearth (2); the boiler comprises a first hearth (2), a second hearth (2) and a boiler barrel (4), wherein the top of the second hearth (2) is provided with the boiler barrel (4), the boiler barrel (4) is connected with a water circulation pipeline of a water cooling wall (12) of the first hearth (1) and the second hearth (2), a heat exchange coil (41) is arranged inside the boiler barrel (4), and the heat exchange coil (41) is connected to an inlet header of an economizer (23) through the water circulation pipeline.
2. The matched sludge incineration waste heat recovery boiler structure as claimed in claim 1, wherein: and a deaerator is arranged at the water supply end of the heat exchange coil (41).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121773842.2U CN215372503U (en) | 2021-08-02 | 2021-08-02 | Supporting sludge incineration waste heat recovery boiler structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121773842.2U CN215372503U (en) | 2021-08-02 | 2021-08-02 | Supporting sludge incineration waste heat recovery boiler structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215372503U true CN215372503U (en) | 2021-12-31 |
Family
ID=79613655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121773842.2U Active CN215372503U (en) | 2021-08-02 | 2021-08-02 | Supporting sludge incineration waste heat recovery boiler structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215372503U (en) |
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2021
- 2021-08-02 CN CN202121773842.2U patent/CN215372503U/en active Active
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