CN201811432U - Heat-conduction oil boiler of recirculating fluidized bed - Google Patents

Heat-conduction oil boiler of recirculating fluidized bed Download PDF

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Publication number
CN201811432U
CN201811432U CN2010205510686U CN201020551068U CN201811432U CN 201811432 U CN201811432 U CN 201811432U CN 2010205510686 U CN2010205510686 U CN 2010205510686U CN 201020551068 U CN201020551068 U CN 201020551068U CN 201811432 U CN201811432 U CN 201811432U
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China
Prior art keywords
convection
heat
heat transfer
transfer
parts
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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 - Fee Related
Application number
CN2010205510686U
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Chinese (zh)
Inventor
牟春涛
张文国
史文彬
董素花
牟丙义
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.)
HEBEI YINENG BOILER CO Ltd
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HEBEI YINENG BOILER CO Ltd
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Priority to CN2010205510686U priority Critical patent/CN201811432U/en
Application granted granted Critical
Publication of CN201811432U publication Critical patent/CN201811432U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a heat-conduction oil boiler of a recirculating fluidized bed, which comprises a radiation heated device (1) and a convection heat transfer part (2) and is characterized in that the lower part of the radiation heated device (1) is provided with a combustion chamber (3); the combustion chamber (3) is provided with an ash outlet (4), a wind feed tube (5) and a coal feeding device (6); the upper part of the radiation heated device (1) is provided with a radiation heat transfer part (7) which is in a vertical film type wall tube structure; a cyclone separator (8) is arranged between the radiation heated device (1) and the convection heat transfer part (2); the convection heat transfer part (2) comprises a plurality of sets of convection banks; and an air preheating part (9) is arranged below the convection heat transfer part (2). In the utility model, heat-conduction oil in the film type wall tube of the radiation heat transfer part exchanges heat with high-temperature fume, then the fume rises upward and turns to enter a convection chamber after passing through the cyclone separator, and coal ash generated through rotational separation in the cyclone separator downward flows back to the combustion chamber for further combustion so that one circulating process is completed; the plurality of sets of the convection banks of the convection heat transfer part carries out heat convection to the fume, and then the air preheating device recovers waste heat so as to improve the heat efficiency of the boiler. The heat-conduction oil boiler in the utility model has the advantages of high combustion efficiency and obvious energy-saving effect.

Description

The recirculating fluidized bed heat-conducting oil furnace
Affiliated technical field
The utility model belongs to a kind of heat-transfer device, is a kind of heat-conducting oil furnace particularly.
Background technology
In the prior art, the coal burning heat-conducting oil stove burner hearth of domestic current generally adopts the traveling-grate stoker of grate firing, and top as the radiation heating section, directly enters the convection section of being made up of many rows coiled pipe of back with spiral coil after high-temperature flue gas and the coil pipe heat exchange.The deficiency of its existence is: the high-temperature flue gas flow process is short, and utilization rate is low, and the operating cost height wastes energy.
Summary of the invention
The purpose of the utility model is to overcome the above-mentioned deficiency of prior art, and a kind of recirculating fluidized bed heat-conducting oil furnace is provided, its efficiency of combustion height, and operating cost is low, and energy-saving effect is obvious.
For reaching above-mentioned purpose, the utility model is taked following technical scheme: the utility model includes: radiation heating device, convection heat transfer' heat-transfer by convection parts, it is characterized in that: the bottom of radiation heating device is the combustion chamber, the combustion chamber is provided with ash hole, gives airduct, feeding system, top is the radiant heat transfer parts, and the radiant heat transfer parts are vertical membrane wall tubular construction; Be provided with cyclone separator between radiation heating device, convection heat transfer' heat-transfer by convection parts, cyclone separator is a funnel-form, and the upper end is communicated with the convection heat transfer' heat-transfer by convection parts, and the lower end is communicated with the combustion chamber; The convection heat transfer' heat-transfer by convection parts are the convection bank of many groups, are provided with the air preheat parts below the convection heat transfer' heat-transfer by convection parts.
The utility model is taked technique scheme, have following beneficial effect: vertical membrane wall circumference of cannon bone of the present utility model becomes the radiant heat transfer space, the high-temperature flue gas that the combustion chamber produces is flow at high speed from bottom to top, conduction oil in the membrane wall pipe from bottom to top moving greater than the speed of 2 meter per seconds, and is finished heat exchange with high-temperature flue gas along tube wall.Upwards turn and enter the right side convection cell through cyclone separator in middle part, high-temperature flue gas, the coal ash that rotation is separated in separator flows downward, and gets back to the combustion chamber and further burns, and finishes a cyclic process.Many groups convection bank of convection heat transfer' heat-transfer by convection parts and smoke convection heat exchange, bottom are air preheater, recovery waste heat, and the thermal efficiency of raising boiler, the hot-air after being heated is delivered in the combustion chamber in left side, is beneficial to burning.The utility model coal combustion circulates, and the efficiency of combustion height can burning low grade coal, reduce the cost of boiler operatiopn, and energy-saving effect is remarkable.The radiation heating device adopts unique membrane wall tubular construction, vertically arranges along the direction of flow of flue gas, reduces the friction of pipe and flue gas, thereby reduces the wearing and tearing of pipe, the service life of prolonged boiler.The utility model air preheater and boiler design are integral, and can improve the thermal efficiency of boiler.
Description of drawings
Below in conjunction with drawings and Examples the utility model is elaborated:
Fig. 1 is the main TV structure sketch of the utility model embodiment.
Fig. 2 is a radiant heat transfer modular construction sketch of the present utility model.
Mark among the figure: 1-radiation heating device, 2-convection heat transfer' heat-transfer by convection parts, 3-combustion chamber, 4-ash hole, 5-give airduct, 6-feeding system, 7-radiant heat transfer parts, 8-cyclone separator, 9-air preheat parts, 10-collection case, 11-connecting plate.
The specific embodiment
By shown in Figure 1, the utility model includes: radiation heating device 1, convection heat transfer' heat-transfer by convection parts 2, the bottom of radiation heating device 1 are combustion chamber 3, and combustion chamber 3 is provided with ash hole 4, gives airduct 5, feeding system 6, top is radiant heat transfer parts 7, and radiant heat transfer parts 7 are vertical membrane wall tubular construction; Be provided with cyclone separator 8 between radiation heating device 1, convection heat transfer' heat-transfer by convection parts 2, cyclone separator 8 is a funnel-form, and the upper end is communicated with convection heat transfer' heat-transfer by convection parts 2, and the lower end is communicated with combustion chamber 3; Convection heat transfer' heat-transfer by convection parts 2 are the convection bank of many groups, are provided with air preheat parts 9 below convection heat transfer' heat-transfer by convection parts 2.
As shown in Figure 2, the upper and lower side of radiant heat transfer parts 7 of the present utility model is equipped with collection case 10, is equiped with connecting plate 11 between the tube and tube.Its characteristics are as follows: the one, connect (Welding Structure) with steel plate between the pipe, and increased heating surface area, improved the thermal efficiency of burner hearth; The 2nd, the pipe direction is consistent with flue gas flow direction, reduces the friction with flue gas, long service life; The 3rd, adopt this structure, reduced the consumption of boiler tube, improved the utilization rate of steel; The 4th, all be the membrane wall pipe around the burner hearth, help heat exchange.

Claims (2)

1. recirculating fluidized bed heat-conducting oil furnace, it includes: radiation heating device (1), convection heat transfer' heat-transfer by convection parts (2), it is characterized in that: the bottom of radiation heating device (1) is combustion chamber (3), combustion chamber (3) is provided with ash hole (4), gives airduct (5), feeding system (6), top is radiant heat transfer parts (7), and radiant heat transfer parts (7) are vertical membrane wall tubular construction; Be provided with cyclone separator (8) between radiation heating device (1), convection heat transfer' heat-transfer by convection parts (2), cyclone separator (8) is a funnel-form, and the upper end is communicated with convection heat transfer' heat-transfer by convection parts (2), and the lower end is communicated with combustion chamber (3); Convection heat transfer' heat-transfer by convection parts (2) are the convection bank of many groups, are provided with air preheat parts (9) in convection heat transfer' heat-transfer by convection parts (2) below.
2. according to the described a kind of recirculating fluidized bed heat-conducting oil furnace of claim l, it is characterized in that: the upper and lower side of radiant heat transfer parts (7) is equipped with collection case (10), is equiped with connecting plate (11) between the tube and tube.
CN2010205510686U 2010-09-29 2010-09-29 Heat-conduction oil boiler of recirculating fluidized bed Expired - Fee Related CN201811432U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010205510686U CN201811432U (en) 2010-09-29 2010-09-29 Heat-conduction oil boiler of recirculating fluidized bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010205510686U CN201811432U (en) 2010-09-29 2010-09-29 Heat-conduction oil boiler of recirculating fluidized bed

Publications (1)

Publication Number Publication Date
CN201811432U true CN201811432U (en) 2011-04-27

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2010205510686U Expired - Fee Related CN201811432U (en) 2010-09-29 2010-09-29 Heat-conduction oil boiler of recirculating fluidized bed

Country Status (1)

Country Link
CN (1) CN201811432U (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278743A (en) * 2011-08-16 2011-12-14 江苏太湖锅炉股份有限公司 Recirculating fluidized bed boiler
CN102721046A (en) * 2012-07-06 2012-10-10 无锡华光锅炉股份有限公司 Circulating fluidized bed boiler for combustion papermaking waste residue and sludge
CN103423869A (en) * 2013-08-13 2013-12-04 北京热华能源科技有限公司 Heat-conduction oil furnace of horizontal circulating fluidized bed
CN106196037A (en) * 2016-08-31 2016-12-07 自贡华西能源工业有限公司 A kind of external circulating system for CFB flue gas generation equipment
CN106196031A (en) * 2016-08-31 2016-12-07 自贡华西能源工业有限公司 A kind of flue gas generation equipment of CFB

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102278743A (en) * 2011-08-16 2011-12-14 江苏太湖锅炉股份有限公司 Recirculating fluidized bed boiler
CN102721046A (en) * 2012-07-06 2012-10-10 无锡华光锅炉股份有限公司 Circulating fluidized bed boiler for combustion papermaking waste residue and sludge
CN102721046B (en) * 2012-07-06 2015-01-14 无锡华光锅炉股份有限公司 Circulating fluidized bed boiler for combustion papermaking waste residue and sludge
CN103423869A (en) * 2013-08-13 2013-12-04 北京热华能源科技有限公司 Heat-conduction oil furnace of horizontal circulating fluidized bed
CN103423869B (en) * 2013-08-13 2016-04-13 北京热华能源科技有限公司 A kind of Horizontal type circulating fluid bed heat-conducting oil furnace
CN106196037A (en) * 2016-08-31 2016-12-07 自贡华西能源工业有限公司 A kind of external circulating system for CFB flue gas generation equipment
CN106196031A (en) * 2016-08-31 2016-12-07 自贡华西能源工业有限公司 A kind of flue gas generation equipment of CFB

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DD01 Delivery of document by public notice

Addressee: Shi Wenbin

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CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20110427

Termination date: 20120929

C17 Cessation of patent right