CN202024469U - Hot-air recuperative furnace for biomass power generation system - Google Patents

Hot-air recuperative furnace for biomass power generation system Download PDF

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Publication number
CN202024469U
CN202024469U CN2010206867826U CN201020686782U CN202024469U CN 202024469 U CN202024469 U CN 202024469U CN 2010206867826 U CN2010206867826 U CN 2010206867826U CN 201020686782 U CN201020686782 U CN 201020686782U CN 202024469 U CN202024469 U CN 202024469U
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CN
China
Prior art keywords
heat
port
air
outlet
recuperative furnace
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
CN2010206867826U
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Chinese (zh)
Inventor
杨裕能
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nantong Haiying Electromechanical Group Co Ltd
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Nantong Haiying Electromechanical Group Co Ltd
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Publication date
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Priority to CN2010206867826U priority Critical patent/CN202024469U/en
Application granted granted Critical
Publication of CN202024469U publication Critical patent/CN202024469U/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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

Abstract

The utility model relates to a hot-air recuperative furnace for a biomass power generation system, belonging to the heat-exchange device technological field. A cylindrical kettle body of the recuperative furnace is horizontally arranged, wherein the center of one end serves as a combustion port, and the other end is extended upwardly with a chimney section with a hot-air outlet. A heat exchanger, which penetrates into the cylindrical kettle body from top to bottom, is inserted in the chimney section. A heat-exchange section of the heat exchanger is U-shaped, and two ports in the upper part are respectively communicated with a heat-exchange medium inlet and a heat-exchange medium outlet which are exposed out of the chimney section. A group of air openings through the cylindrical kettle body are distributed surrounding the combustion port. Inner outlets of the air openings are tangentially distributed along the heat-insulating wall of the cylindrical kettle body, and the outlet directions form predetermined helical angles. Since the inner outlets of the air openings have the helical angles along the heat-insulating wall, air and flue gas can be sufficiently and uniformly mixed, so as to achieve ideal combustion supporting effect and to make the combustion more complete. In addition, while the central flame is stabilized, the flame is isolated from the heat-insulating wall of the cylindrical kettle body, improving the heat-insulating effect and avoiding high-temperature erosion of the heat-insulating wall as well.

Description

Biomass fermentation electric system hot blast recuperative furnace
Technical field
The utility model relates to a kind of combustion heat-exchange device, and especially a kind of biomass fermentation electric system hot blast recuperative furnace belongs to technical field of heat exchange device.
Background technology
Heat when utilizing biomass combustion carry out heat exchange be turn waste into wealth, an important channel of effective use of energy sources.The hot blast recuperative furnace then is a key equipment of realizing above-mentioned heat exchange.
Retrieval is found, application number is that the Chinese patent application of CN200610125954.0 discloses a kind of heat pipe hot-blast stove using biomass energy resource, by passing heat pipe longitudinal fin endotherm section absorption burner hearth, the flue biomass combustion heat that tube sheet stretches into the heat pipe light pipe endotherm section of burner hearth and stretches into flue, the superconduction phase-change heat-exchange is to the hot-air generation chamber that places tube sheet top, wash away at fan airflow and to discharge down latent heat of condensation Fast Heating air, working medium is condensed into liquid and absorbs heat to vaporize to heat pipe bottom endotherm section by gravity reflux again and move in circles.Adding hot-air when vertical air channel and air channel, burner hearth flue both sides, is heated after the hot-blast outlet blower fan is transported to hot-air field mouth by the horizontal stripe shape fin radiation and convection of burner hearth, flue and outer wall thereof between front panel is with the burner hearth panel more again.Can on fume emission is taken over, the frequency conversion air-introduced machine be set,, realize semi-automatic operation with arranging thermocouple sensor and temperature controller interlocking on the hot air duct.
The shortcoming that above prior art exists is: the efficiency of combustion during biomass combustion is not high enough, flame is also stable inadequately, therefore influences heat exchanger effectiveness.
The utility model content
The purpose of this utility model is: the deficiency at above-mentioned prior art exists proposes the biomass fermentation electric system hot blast recuperative furnace of a kind of efficiency of combustion height, flame stabilization, thereby can significantly improve the heat exchange efficiency of hot-blast stove.
In order to reach above purpose, biomass fermentation electric system hot blast recuperative furnace of the present utility model comprises the cylindric kettle with heat insulation wall; Described cylindric kettle horizontal setting, an end center is a port, the other end extends the chimney section with hot-blast outlet up; Described chimney section is inserted with the heat exchanger that from up to down stretches in the cylindric kettle; The heat exchanging segment of described heat exchanger takes the shape of the letter U, and heat transferring medium import and heat transferring medium outlet that the two-port on top is outer with being exposed at the chimney section respectively are communicated with; Distribute one group to pass around the described port and stretch into cylindric kettle cloth air port; The inner outlet in described cloth air port is along the heat insulation wall tangential distribution of cylindric kettle, and Way out forms predetermined helical angle.
During work, the combustion head that is contained in the port place sprays into combustion product gases in cylindric kettle, behind the heat exchanging segment of heat exchanger, hot-blast outlet output from the chimney section, after heat transferring medium enters heat exchanger from the heat transferring medium import, after heat exchanging segment and combustion product gases heat exchange,, finish heat exchange from heat transferring medium outlet output.Meanwhile, the cloth air port is input air in cylindric kettle, because the outlet of the inner in cloth air port has the helical angle along heat insulation wall, therefore input air is along the heat insulation wall spiral precession of tubular kettle, the air of precession can mix the desirable combustion-supporting effect of playing with flue gas is full and uniform in this process, make burning more abundant, and in the effect of playing stable center flame, the heat insulation wall of flame and tubular kettle is separated, both strengthened heat insulation effect, avoided the high temperature erosion of heat insulation wall again, achieved many things at one stroke.
Description of drawings
Below in conjunction with accompanying drawing the utility model is further described.
Fig. 1 is the preferred structure schematic diagram of an embodiment of the utility model.
Fig. 2 is the side view of Fig. 1.
The specific embodiment
Embodiment one
The biomass fermentation electric system hot blast recuperative furnace of present embodiment as shown in Figure 1, cylindric kettle 2 horizontal settings with heat insulation wall 1, one end center is provided with port b by the conical section of flaring inwardly, and the other end extends the chimney section 3 with horizontal hot-blast outlet d up.This chimney section is inserted with the heat exchanger 4 that from up to down stretches in the cylindric kettle.The heat exchanging segment 5 of heat exchanger 4 is made of the set of heat exchange tubes that takes the shape of the letter U, and heat transferring medium import e that the two-port on top is outer with being exposed at chimney section 3 respectively and heat transferring medium outlet f are communicated with.The hexad that distributes around the port b passes and stretches into cylindric kettle cloth air port c.The inner outlet in each cloth air port is along heat insulation wall 1 tangential distribution of cylindric kettle 2, and Way out forms predetermined helical angle.In addition, the below of port b also is provided with the used heat import a of contiguous cylindric autoclave body bottom, is used for importing used heat and carries out preheating when the initial work of hot-blast stove.
During work, start burner after the preheating, by the heat exchanging segment of port heating heat exchanger, from the hot-blast outlet output waste gas of chimney section.After the heat exchange air enters heat exchanger from the heat transferring medium import, after U-shaped heat exchanging segment and combustion product gases heat exchange,, finish heat exchange from heat transferring medium outlet output.Meanwhile, compressed air is imported in the cloth air port in cylindric kettle, because its inner outlet is in spiral distribution along heat insulation wall, therefore input air is along the heat insulation wall high speed precession of tubular kettle, have following action effect: 1) protection heat insulation wall, avoid high temperature erosion, and can strengthen heat insulation effect; 2) can mix with combustion product gases is more even, make its burning more abundant; 3) with flame stabilization in effective working region.
Experiment showed, with existing similar technology and compare that present embodiment has significantly improved the burning and the heat exchange efficiency of hot-blast stove, more helps making full use of the energy, and its working stability is reliable, helps increasing the service life.
In addition to the implementation, the utility model can also have other embodiments.For example, heat transferring medium is preferably formed as reverse heat-exchange at the flow direction of heat exchanging segment and the flow direction of combustion product gases.All employings are equal to the technical scheme of replacement or equivalent transformation formation, all drop on the protection domain of the utility model requirement.

Claims (6)

1. a biomass fermentation electric system hot blast recuperative furnace comprises the cylindric kettle with heat insulation wall; It is characterized in that: described cylindric kettle horizontal setting, an end center is a port, the other end extends the chimney section with hot-blast outlet up; Described chimney section is inserted with the heat exchanger that from up to down stretches in the cylindric kettle; The heat exchanging segment of described heat exchanger takes the shape of the letter U, and heat transferring medium import and heat transferring medium outlet that the two-port on top is outer with being exposed at the chimney section respectively are communicated with; Distribute one group to pass around the described port and stretch into cylindric kettle cloth air port; The inner outlet in described cloth air port is along the heat insulation wall tangential distribution of cylindric kettle, and Way out forms predetermined helical angle.
2. biomass fermentation electric system hot blast recuperative furnace according to claim 1 is characterized in that: an end center of described cylindric kettle is provided with port by the conical section of flaring inwardly.
3. biomass fermentation electric system hot blast recuperative furnace according to claim 2, it is characterized in that: described chimney section has horizontal hot-blast outlet.
4. according to claim 1,2 or 3 described biomass fermentation electric system hot blast recuperative furnaces, it is characterized in that: described heat transferring medium forms reverse heat-exchange at the flow direction of heat exchanging segment and the flow direction of combustion product gases.
5. biomass fermentation electric system hot blast recuperative furnace according to claim 4, it is characterized in that: the heat exchanging segment of described heat exchanger is made of the set of heat exchange tubes that takes the shape of the letter U.
6. biomass fermentation electric system hot blast recuperative furnace according to claim 5 is characterized in that: the below of described port also is provided with the used heat import of contiguous cylindric autoclave body bottom.
CN2010206867826U 2010-12-17 2010-12-17 Hot-air recuperative furnace for biomass power generation system Expired - Lifetime CN202024469U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010206867826U CN202024469U (en) 2010-12-17 2010-12-17 Hot-air recuperative furnace for biomass power generation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010206867826U CN202024469U (en) 2010-12-17 2010-12-17 Hot-air recuperative furnace for biomass power generation system

Publications (1)

Publication Number Publication Date
CN202024469U true CN202024469U (en) 2011-11-02

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010206867826U Expired - Lifetime CN202024469U (en) 2010-12-17 2010-12-17 Hot-air recuperative furnace for biomass power generation system

Country Status (1)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102095209A (en) * 2010-12-17 2011-06-15 南通海鹰机电集团有限公司 Hot-blast recuperative furnace of biomass generating system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102095209A (en) * 2010-12-17 2011-06-15 南通海鹰机电集团有限公司 Hot-blast recuperative furnace of biomass generating system
CN102095209B (en) * 2010-12-17 2012-09-05 南通海鹰机电集团有限公司 Hot-blast recuperative furnace of biomass generating system

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C14 Grant of patent or utility model
GR01 Patent grant
AV01 Patent right actively abandoned

Granted publication date: 20111102

Effective date of abandoning: 20120905