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Oil field gas injection boiler taking pulverized coal as fuel

A gas injection boiler and pulverized coal combustion technology, applied in steam boilers, steam generation, lighting and heating equipment, etc., can solve the problems of low efficiency and large emissions of air pollutants, and achieve the effect of solving low efficiency

Inactive Publication Date: 2012-04-18
SHANXI LANTIAN ENVIRONMENTAL PROTECTION EQUIPCO
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0003] In order to solve the problems of low efficiency of existing coal-fired oilfield gas injection boilers and large emissions of air pollutants, the present invention provides an oilfield gas injection boiler using pulverized coal as fuel

Method used

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  • Oil field gas injection boiler taking pulverized coal as fuel
  • Oil field gas injection boiler taking pulverized coal as fuel
  • Oil field gas injection boiler taking pulverized coal as fuel

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Embodiment Construction

[0011] Oilfield gas injection boilers fueled by pulverized coal, including pulverized coal combustion system, boiler body, and flue gas treatment equipment;

[0012] The pulverized coal combustion system includes an intermediate powder bin 1, a powder feeder 2, a mixer 3, a pulverized coal burner 4, a primary fan 5, a secondary fan 6, and a liquefied petroleum gas tank 7; the output port of the intermediate powder bin 1 It communicates with the input port of the powder feeder 2, the output port of the powder feeder 2 communicates with the input port of the mixer 3, the output port of the mixer 3 communicates with the input port of the pulverized coal burner 4, and the output port of the liquefied petroleum gas tank 7 The port is communicated with the ignition port of the pulverized coal burner 4;

[0013] The boiler body comprises a J-shaped furnace 8, a furnace roof 9, and a convection flue 10; The input port of the J-shaped furnace 8 and the furnace roof 9 are equipped with...

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Abstract

The invention relates to an oil field gas injection boiler, in particular to an oil field gas injection boiler taking pulverized coal as fuel, and solves the problems that the conventional coal-fired oil field gas injection boiler has low efficiency and the discharge quantity of atmospheric pollutants is large. The oil field gas injection boiler taking the pulverized coal as the fuel comprises a pulverized coal combustion system, a boiler body and flue gas treatment equipment, wherein the pulverized coal combustion system comprises an intermediate powder storehouse, a pulverized coal feeder, a mixer, a pulverized coal combustor, a primary air fan, a secondary air fan and a liquefied petroleum gas tank; the boiler body comprises a J-shaped hearth, a furnace top and a convection flue; and the flue gas treatment equipment comprises a bag-type dust collector, a draught fan, a devulcanizer and a chimney. Coal is cleanly combusted on the basis of a novel structure, saturated vapor is produced under subcritical pressure, and the oil field gas injection boiler is suitable for the thermal recovery process of crude oil in an oil field.

Description

technical field [0001] The invention relates to an oilfield gas injection boiler, in particular to an oilfield gas injection boiler using pulverized coal as fuel. Background technique [0002] Oilfield thermal recovery refers to the extraction of viscous crude oil that is difficult to extract underground after heating. The steam generating equipment used to inject steam into the underground oil layer to heat crude oil in the process of oil field thermal recovery is called thermal recovery boiler, also called oil field gas injection boiler. Oilfield gas injection boiler is a high-parameter and small-capacity once-through steam boiler, its working pressure is as high as 18Mpa, but its capacity is generally not large. Early oilfield gas injection boiler fuel generally used oil, gas or petroleum by-products of oilfields, such as waste oil and waste gas, etc., and then as the price of petroleum continued to rise, even oilfields hoped to use cheap coal fuel instead of expensive f...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F22B31/00F23J15/00
Inventor 王欢王民发郎凤娥郎鹏德郝泽杜铭华赵红卫贾德威任彦斌
Owner SHANXI LANTIAN ENVIRONMENTAL PROTECTION EQUIPCO
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