CN208313097U - A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas - Google Patents

A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas Download PDF

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Publication number
CN208313097U
CN208313097U CN201820477074.8U CN201820477074U CN208313097U CN 208313097 U CN208313097 U CN 208313097U CN 201820477074 U CN201820477074 U CN 201820477074U CN 208313097 U CN208313097 U CN 208313097U
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China
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heat
drum
temperature gas
high temperature
pipe
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CN201820477074.8U
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Chinese (zh)
Inventor
张衍国
李清海
张凝
刘双双
康啸
赵虎
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Tsinghua University
Babcock and Wilcox Beijing Co Ltd
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Tsinghua University
Babcock and Wilcox Beijing Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E20/00Combustion technologies with mitigation potential
    • Y02E20/30Technologies for a more efficient combustion or heat usage

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  • Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)

Abstract

The utility model discloses a kind of heat exchanger to exchange heat for drum and high-temperature gas and based on the heat-exchange system of the heat exchanger, can be used in transmitting heat between drum and High Temperature Gas channel, drum is arranged above High Temperature Gas channel.Heat exchanger includes several heat pipes;Several heat pipes are respectively independently arranged.The both ends of any one heat pipe are separately positioned in drum and High Temperature Gas channel.Several fins are provided on the side heat pipe outer wall in High Temperature Gas channel.Any one heat pipe enters vertical with drum wall surface when drum across drum wall surface.High Temperature Gas is provided with blowing pipe in channel.A kind of heat-exchange system, including drum, High Temperature Gas channel and between drum and High Temperature Gas channel transmit heat heat exchanger.The utility model has many advantages, such as the wall surface temperature contacted with high-temperature gas height, good effect of heat exchange, compact-sized.

Description

A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas
Technical field
The utility model relates to a kind of heat exchangers and heat-exchange system more particularly to one to exchange heat for drum and high-temperature gas Heat exchange of heat pipe and heat-exchange system of the kind for drum and containing the heat exchange of the high-temperature gasification gas of tar and dust belong to heat exchange neck Domain.
Background technique
High-temperature gas UTILIZATION OF VESIDUAL HEAT IN process is arranged heat exchanger often through waste heat boiler or in exhaust gases passes and such as saves coal Device, superheater etc. realize heat exchange.But in biomass and big coal fired boilers combined generating system, since biomass has moisture The features such as content is more, fugitive constituent is high, fuel density is small, structure is more open, biomass tends not to be directly thrown into large size It burns in coal-powder boiler.In addition, the alkali metal such as potassium (K), sodium (Na) in biomass can reduce the ash fusion point of fuel in coal-powder boiler, hold It easily causes the corrosion of high-temperature surface alkali metal and low temperature heating surface dust stratification to influence coal-powder boiler to operate normally.It is needed at this time by biomass Fuel gasifies in advance, and the gasification gas after dedusting is then passed through coal-powder boiler and one combust of coal dust again.In the process, High Temperature Gas Change gas need to first exchange heat cooling and dedusting.At this point, the heat exchanger components of usually UTILIZATION OF VESIDUAL HEAT IN need special medium just and can ensure that it is higher Wall temperature, avoid tar from being precipitated, while biomass gasification system can be made to become bulky complex, and be easy to cause gasification gas leakage.
Utility model content
The purpose of this utility model is to provide a kind of heat exchanger that can be used for drum and high-temperature gas heat exchange and heat exchange System, particularly for the heat exchange of high-temperature gasification gas.
The utility model is achieved through the following technical solutions:
A kind of heat exchanger to exchange heat for drum and high-temperature gas, the heat exchanger can be used in logical in drum and High Temperature Gas Heat is transmitted between road, the heat exchanger includes several heat pipes;The heat pipe both ends are separately positioned on the drum and described In High Temperature Gas channel;Several fins are provided on the side outer wall that the heat pipe is located in the High Temperature Gas channel.
In above-mentioned technical proposal, several described heat pipes are respectively independently arranged.
In above-mentioned technical proposal, any one described heat pipe, which passes through when the drum wall surface enters drum, to hang down with drum wall surface Directly.
In above-mentioned technical proposal, the High Temperature Gas channel is horizontally disposed, and the drum is arranged on the High Temperature Gas channel Side
In above-mentioned technical proposal, the heat pipe includes super heat-conductive pipe, liquid working substance heat pipe;The liquid of the liquid working substance heat pipe Body working medium includes water, acetone, methanol, ethyl alcohol.
In above-mentioned technical proposal, blowing pipe is provided in the High Temperature Gas channel.The blowing pipe selects steam soot blowing pipe.
A kind of heat-exchange system, the heat-exchange system include drum, High Temperature Gas channel and in the drum and the high temperature The heat exchanger of heat is transmitted between gas channel, the heat exchanger includes several heat pipes;The heat pipe both ends are separately positioned on institute It states in drum and the High Temperature Gas channel;Several are provided on the side outer wall that the heat pipe is located in the High Temperature Gas channel Fin.
In above-mentioned technical proposal, the High Temperature Gas channel is horizontally disposed, and the drum is arranged on the High Temperature Gas channel Side.
In above-mentioned technical proposal, the heat pipe includes super heat-conductive pipe, liquid working substance heat pipe;The liquid of the liquid working substance heat pipe Body working medium includes water, acetone, methanol, ethyl alcohol;Blowing pipe is provided in the High Temperature Gas channel.
The utility model has the following advantages that and the utility model has the advantages that heat exchange of heat pipe is efficient, while reducing heat-transfer surface, also It can guarantee that the tar in gasification gas is not precipitated, equipment can be with continuous and steady operation;The setting of fin further improves heat pipe Heat exchange efficiency.
Detailed description of the invention
Fig. 1 is a kind of heat exchanger schematic diagram to exchange heat for drum and high-temperature gas involved by the utility model.
Fig. 2 is a kind of heat exchanger cross sectional arrangement signal to exchange heat for drum and high-temperature gas involved by the utility model Figure.
In figure: 1- drum;2- High Temperature Gas channel;3- heat pipe;4- fin;5- blowing pipe;6- ash bucket.
Specific embodiment
Specific embodiment of the present utility model and the course of work are further described with reference to the accompanying drawing.
The positional terms such as the upper, lower, left, right, front and rear in present specification be positional relationship based on the figure and It establishes.Attached drawing is different, then corresponding positional relationship is also possible to change therewith, therefore cannot be interpreted as with this to protection model The restriction enclosed.
A kind of heat exchanger to exchange heat for drum and high-temperature gas described in the utility model, can be used in drum 1 and height Heat is transmitted between wet channel 2, high-temperature gas in High Temperature Gas channel 2 is made especially to make the heat transfer of high-temperature gasification gas to drum Working-medium water in 1 is heated water or steam water interface in drum 1 and reaches target vapor parameter.
As shown in Figure 1, High Temperature Gas channel 2 is horizontally disposed, drum 1 is arranged above High Temperature Gas channel 2, the center of drum 1 Line and the centerline parallel in High Temperature Gas channel 2 are arranged.A kind of heat exchanger to exchange heat for drum and high-temperature gas includes several Heat pipe 3, the independent arrangement of these several heat pipes 3.The both ends of any one heat pipe 3 are separately positioned on drum 1 and High Temperature Gas is logical In road 2, heat pipe is heated by High Temperature Gas in High Temperature Gas channel 2 and generates phase transformation, and phase change material ascends into drum 1 and meets cryogenic fluid By heat release, phase transformation lowers into High Temperature Gas channel 2 again, forms cycle heat exchange.To further increase heat exchange efficiency, heat Pipe 3, which is located on the heat pipe outer wall of the side in High Temperature Gas channel 2, is provided with several fins 4, increases heating surface area.
A kind of heat-exchange system based on above-mentioned heat exchanger, heat-exchange system include drum 1, High Temperature Gas channel 2 and described The heat exchanger of heat is transmitted between drum and the High Temperature Gas channel, the heat exchanger includes several heat pipes 3;The heat pipe 3 Both ends are separately positioned in the drum 1 and the High Temperature Gas channel 2;The heat pipe 3 is located at one in the High Temperature Gas channel 2 Several fins 4 are provided on the outer wall of side.
The preferred special-shaped heat pipe of heat pipe 3, one end of any one heat pipe 3 when passing through 1 wall surface of drum and entering drum and drum Wall surface is vertical.It is similar, the other end of any one heat pipe 3 when passing through the wall surface in High Temperature Gas channel 2 also with High Temperature Gas conduit wall Face passes perpendicularly through.
Above-mentioned heat pipe 3 includes super heat-conductive pipe, liquid working substance heat pipe;The liquid working substance of the liquid working substance heat pipe include water, Acetone, methanol, ethyl alcohol.
High Temperature Gas, often with flue dust, is easy in heat pipe 3 especially from the high-temperature gasification gas of biomass gasification device, Dust stratification especially is caused on the fin 4 of heat pipe, therefore is provided with blowing pipe 5 in High Temperature Gas channel 2, to avoid the band in gasification gas Enter oxidant, the preferred steam soot blowing pipe of blowing pipe 5.Correspondingly, the downstream base portion in High Temperature Gas channel 2 is provided with ash bucket 6, for receiving Collection and discharge flue dust.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.

Claims (10)

1. a kind of heat exchanger to exchange heat for drum and high-temperature gas, the heat exchanger can be used in drum (1) and High Temperature Gas Heat is transmitted between (2) in channel, it is characterised in that: the heat exchanger includes several heat pipes (3);Heat pipe (3) both ends point It She Zhi not be in the drum (1) and the High Temperature Gas channel (2);The heat pipe (3) is located in the High Temperature Gas channel (2) Several fins (4) are provided on the outer wall of side.
2. a kind of heat exchanger to exchange heat for drum and high-temperature gas according to claim 1, it is characterised in that: if described Dry heat pipe (3) is respectively independent to be arranged.
3. a kind of heat exchanger to exchange heat for drum and high-temperature gas according to claim 1 or 2, it is characterised in that: institute State any one heat pipe (3) pass through the drum (1) wall surface enter it is vertical with drum wall surface when drum (1).
4. a kind of heat exchanger to exchange heat for drum and high-temperature gas according to claim 1, it is characterised in that: the height Wet channel (2) is horizontally disposed, and drum (1) setting is above the High Temperature Gas channel (2).
5. a kind of heat exchanger to exchange heat for drum and high-temperature gas according to claim 1, it is characterised in that: the heat Managing (3) includes super heat-conductive pipe, liquid working substance heat pipe;The liquid working substance of the liquid working substance heat pipe includes water, acetone, methanol, second Alcohol.
6. a kind of heat exchanger to exchange heat for drum and high-temperature gas according to claim 1, it is characterised in that: the height Blowing pipe (5) are provided in wet channel (2).
7. a kind of heat exchanger to exchange heat for drum and high-temperature gas according to claim 6, it is characterised in that: described to blow Ash pipe (5) selects steam soot blowing pipe.
8. a kind of heat-exchange system, which is characterized in that the heat-exchange system includes drum (1), High Temperature Gas channel (2) and described The heat exchanger of heat is transmitted between drum (1) and the High Temperature Gas channel (2), the heat exchanger includes several heat pipes (3);Institute Heat pipe (3) both ends are stated to be separately positioned in the drum (1) and the High Temperature Gas channel (2);The heat pipe (3) is located at the height Several fins (4) are provided on side outer wall in wet channel (2).
9. a kind of heat-exchange system according to claim 8, it is characterised in that: the High Temperature Gas channel (2) is horizontally disposed, institute Drum (1) setting is stated above the High Temperature Gas channel (2).
10. a kind of heat-exchange system according to claim 8, it is characterised in that: the heat pipe (3) includes super heat-conductive pipe, liquid Body working medium heat pipe;The liquid working substance of the liquid working substance heat pipe includes water, acetone, methanol, ethyl alcohol;The High Temperature Gas channel (2) Inside it is provided with blowing pipe (5).
CN201820477074.8U 2018-04-04 2018-04-04 A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas Active CN208313097U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201820477074.8U CN208313097U (en) 2018-04-04 2018-04-04 A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201820477074.8U CN208313097U (en) 2018-04-04 2018-04-04 A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas

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CN208313097U true CN208313097U (en) 2019-01-01

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108469192A (en) * 2018-04-04 2018-08-31 北京巴布科克·威尔科克斯有限公司 A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108469192A (en) * 2018-04-04 2018-08-31 北京巴布科克·威尔科克斯有限公司 A kind of heat exchanger and heat-exchange system to exchange heat for drum and high-temperature gas
CN108469192B (en) * 2018-04-04 2024-06-04 北京巴布科克·威尔科克斯有限公司 Heat exchanger and heat exchange system for heat exchange between steam drum and high-temperature gas

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