CN101358769A - Heating apparatus for oil and water mixture fire coal circulating fluidized bed - Google Patents

Heating apparatus for oil and water mixture fire coal circulating fluidized bed Download PDF

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Publication number
CN101358769A
CN101358769A CNA2008101203065A CN200810120306A CN101358769A CN 101358769 A CN101358769 A CN 101358769A CN A2008101203065 A CNA2008101203065 A CN A2008101203065A CN 200810120306 A CN200810120306 A CN 200810120306A CN 101358769 A CN101358769 A CN 101358769A
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China
Prior art keywords
coal
oil
water mixture
heating
phase zone
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Pending
Application number
CNA2008101203065A
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Chinese (zh)
Inventor
金余其
严建华
池涌
李晓东
马增益
蒋旭光
杨家林
王飞
陆胜勇
黄群星
倪明江
岑可法
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Zhejiang University ZJU
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Zhejiang University ZJU
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Publication date
Application filed by Zhejiang University ZJU filed Critical Zhejiang University ZJU
Priority to CNA2008101203065A priority Critical patent/CN101358769A/en
Publication of CN101358769A publication Critical patent/CN101358769A/en
Pending legal-status Critical Current

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Abstract

The present invention discloses an oil-water mixture fuel-coal cycling fluidized bed heating device. The coal enters into the condensed phase zone at the lower part of the hearth of the fluidized bed through a coal feeding device from a coal funnel; the outlet of a ventilator is connected to the condensed phase zone at the lower part of the hearth through a ventilating chamber and an air-distributing plate; after the smoke that is combusted inside the hearth heats the heat exchanging pipe at the sparse phase zone of the hearth, the smoke is connected to a rotary-wind separator; the separated solid particles are sent to the hearth through a material back-sending device at the lower end of the rotary-wind separator to continue to be combusted, and the smoke is discharged from the chimney through a heat-receiving surface at the tail part, a cloth-bag dust collector and a suction ventilator; the oil-water mixture enters into a heat exchanging pipe that is arranged inside the sparse phase zone of the hearth; after being heated in the sparse phase zone at the upper part of the hearth of the fluidized bed, the oil-water mixture enters into a heat exchanging pipe that is arranged inside a tail heat-receiving surface to be heated, and is discharged from an outlet of the heating pipe. The cycling fluidized bed boiler is adopted, and the coal is used to substitute the expensive oil or gas, not only the heating cost is saved, but also the coal has wide adaptability, uniform temperature, wide load adjusting range and high combustion efficiency, and the discharging quantity of the pollutants is easy to be controlled, and the running operation is convenient and reliable.

Description

A kind of heating apparatus for oil and water mixture fire coal circulating fluidized bed
Technical field
The present invention relates to oil field oil water mixture heating technique, especially relate to a kind of heating apparatus for oil and water mixture fire coal circulating fluidized bed.
Background technology
The oil water mixture temperature that oilfield exploitation comes out is lower, generally has only 50~60 ℃, and general water-oil separating technological requirement oil water mixture temperature is more than 80 ℃, so need the oil water mixture that firm exploitation is come out be heated.Conventional heating means adopt the directly heating in heating furnace of oil or natural gas, at present domestic also once had the people to propose patent (F24H 1/00, F28F 1/06 heating furnace) on the type selecting of heating furnace, the characteristics of this utility model patent are, the tube wall of putting heat pipe heat and endothermic tube group is provided with big ripple, can be bellows tube.Such patent is to use oil or natural gas to act as a fuel equally.
Along with the continuous of in short supply and price of petroleum resources risen, it is imperative that searching replaces fuel and suitable heating furnace that oil water mixture is heated.Rich coal resources in China, with the coal heating oil water mixture that acts as a fuel, reducing heating cost, but domestic relevant so far patent.
Summary of the invention
The purpose of this invention is to provide a kind of heating apparatus for oil and water mixture fire coal circulating fluidized bed
The technical solution used in the present invention is:
Bunker coal inserts fluid bed furnace thorax bottom emulsion zone from coal bunker through coal feeder, the pressure fan outlet is through air compartment, air distribution plate inserts the lower furnace portion emulsion zone, in the burner hearth dilute-phase zone, heat heat exchanger tube in the burner hearth gas fume after burning, the flue gas that comes out from burner hearth connects cyclone separator, the loopback of material device of the solid particle that separates through connecing the cyclone separator lower end inserts burner hearth and burns away, flue gas is through back-end surfaces, bag-type dust collector, air-introduced machine, drain from chimney at last, oil water mixture inserts the heat exchanger tube that is arranged in the burner hearth dilute-phase zone from entrance point, after the heating of fluid bed burner hearth top dilute-phase zone, enter the heat exchanger tube heating in the back-end surfaces, flow out from the heating tube outlet.
Described fluid bed dilute-phase zone flue gas flow rate is 2.5~3.5m/s, and the tail flue gas flow velocity is 6~8m/s, and profit heating tube material adopts 20/GB3087, and the pipe wall thickness is 10mm.
The beneficial effect that the present invention has is:
By adopting CFBB, replace relatively costly oil or gas with coal, not only saved heating cost, and coal adaptability is wide, temperature is even, load regulation range is wide, efficiency of combustion is high, pollutant discharge amount is controlled easily, operation is convenient and reliable, for the heating of oil field oil water mixture provides a practicable device.
Description of drawings
Accompanying drawing is the heating apparatus for oil and water mixture fire coal circulating fluidized bed structural representation.
Among the figure: 1, coal bunker, 2, coal feeder, 3, pressure fan, 4, air compartment, 5, air distribution plate, 6, emulsion zone, 7, dilute-phase zone, 8, heat exchanger tube, 9, cyclone separator, 10, loopback of material device, 11, heat exchanger tube, 12, back-end surfaces, 13, bag-type dust collector, 14, air-introduced machine, 15, chimney, a, entrance point, b, heating tube outlet.
The specific embodiment
The present invention is further illustrated below in conjunction with drawings and Examples.
As shown in drawings, bunker coal inserts fluid bed furnace thorax bottom emulsion zone 6 from coal bunker 1 through coal feeder 2, pressure fan 3 outlets are through air compartment 4, air distribution plate 5 inserts lower furnace portion emulsion zone 6, in burner hearth dilute-phase zone 7, heat heat exchanger tube 8 in the burner hearth gas fume after burning, the flue gas that comes out from burner hearth connects cyclone separator 9, the loopback of material device 10 of the solid particle that separates through connecing cyclone separator 9 lower ends inserts burner hearth and burns away, flue gas is through back-end surfaces 12, bag-type dust collector 13, air-introduced machine 14, drain from chimney 15 at last, oil water mixture inserts the heat exchanger tube 8 that is arranged in the burner hearth dilute-phase zone 7 from entrance point a, enter heat exchanger tube 11 heating in the back-end surfaces 12 after the heating of fluid bed burner hearth top dilute-phase zone, b flows out from the heating tube outlet.
The present invention arranges a certain amount of radiation heating-surface at the upper furnace dilute-phase zone, arrange a certain amount of convection heating surface at boiler tail, the recirculating fluidized bed Control for Kiln Temperature is at 850 ℃-950 ℃, and the boiler export flue-gas temperature is controlled at below 150 ℃, and oil water mixture is heated to more than 80 ℃.Fluid bed dilute-phase zone flue gas flow rate scope of design is at 2.5~3.5m/s, tail flue gas flow velocity scope of design 6~8m/s, and profit heating tube material can adopt 20/GB3087, and the pipe wall thickness is 10mm.

Claims (2)

1, a kind of heating apparatus for oil and water mixture fire coal circulating fluidized bed, it is characterized in that: bunker coal inserts fluid bed furnace thorax bottom emulsion zone (6) from coal bunker (1) through coal feeder (2), pressure fan (3) outlet is through air compartment (4), air distribution plate (5) inserts lower furnace portion emulsion zone (6), in burner hearth dilute-phase zone (7), heat heat exchanger tube (8) in the burner hearth gas fume after burning, the flue gas that comes out from burner hearth connects cyclone separator (9), the loopback of material device (10) of the solid particle that separates through connecing cyclone separator (9) lower end inserts burner hearth and burns away, flue gas is through back-end surfaces (12), bag-type dust collector (13), air-introduced machine (14), drain from chimney (15) at last, oil water mixture inserts the heat exchanger tube (8) that is arranged in the burner hearth dilute-phase zone (7) from entrance point (a), after the heating of fluid bed burner hearth top dilute-phase zone, enter heat exchanger tube (11) heating in the back-end surfaces (12), flow out from heating tube outlet (b).
2, a kind of heating apparatus for oil and water mixture fire coal circulating fluidized bed according to claim 1, it is characterized in that: described fluid bed dilute-phase zone flue gas flow rate is 2.5~3.5m/s, the tail flue gas flow velocity is 6~8m/s, and profit heating tube material adopts 20/GB3087, and the pipe wall thickness is 10mm.
CNA2008101203065A 2008-08-25 2008-08-25 Heating apparatus for oil and water mixture fire coal circulating fluidized bed Pending CN101358769A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNA2008101203065A CN101358769A (en) 2008-08-25 2008-08-25 Heating apparatus for oil and water mixture fire coal circulating fluidized bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNA2008101203065A CN101358769A (en) 2008-08-25 2008-08-25 Heating apparatus for oil and water mixture fire coal circulating fluidized bed

Publications (1)

Publication Number Publication Date
CN101358769A true CN101358769A (en) 2009-02-04

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Application Number Title Priority Date Filing Date
CNA2008101203065A Pending CN101358769A (en) 2008-08-25 2008-08-25 Heating apparatus for oil and water mixture fire coal circulating fluidized bed

Country Status (1)

Country Link
CN (1) CN101358769A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110260346A (en) * 2019-06-18 2019-09-20 玉林市新滔环保科技有限公司 A kind of boiler ash removal slag device
CN112390504A (en) * 2020-12-06 2021-02-23 哈尔滨华崴重工有限公司 Fluidized bed reactor and system and method for drying and incinerating sludge by using same
CN113167473A (en) * 2018-11-20 2021-07-23 Aix制程有限公司 Method and device for controlling a process in a system, in particular a combustion process in a power station

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113167473A (en) * 2018-11-20 2021-07-23 Aix制程有限公司 Method and device for controlling a process in a system, in particular a combustion process in a power station
CN113167473B (en) * 2018-11-20 2024-05-28 Aix制程有限公司 Method and device for regulating and controlling combustion process in system
CN110260346A (en) * 2019-06-18 2019-09-20 玉林市新滔环保科技有限公司 A kind of boiler ash removal slag device
CN112390504A (en) * 2020-12-06 2021-02-23 哈尔滨华崴重工有限公司 Fluidized bed reactor and system and method for drying and incinerating sludge by using same

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Open date: 20090204