CN2624057Y - Small-sized inverse combustion coal gasification boiler - Google Patents

Small-sized inverse combustion coal gasification boiler Download PDF

Info

Publication number
CN2624057Y
CN2624057Y CNU032188919U CN03218891U CN2624057Y CN 2624057 Y CN2624057 Y CN 2624057Y CN U032188919 U CNU032188919 U CN U032188919U CN 03218891 U CN03218891 U CN 03218891U CN 2624057 Y CN2624057 Y CN 2624057Y
Authority
CN
China
Prior art keywords
boiler
coal
chamber
water
small
Prior art date
Application number
CNU032188919U
Other languages
Chinese (zh)
Inventor
车得福
李强
刘银河
Original Assignee
西安交通大学
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 西安交通大学 filed Critical 西安交通大学
Priority to CNU032188919U priority Critical patent/CN2624057Y/en
Application granted granted Critical
Publication of CN2624057Y publication Critical patent/CN2624057Y/en

Links

Abstract

The utility model discloses a small scale and high efficiency coal gas boiler. The structural characteristic is as below: the utility model comprises a coal gasification chamber, a secondary combustion chamber, a hearth, a conversion heating surface and a boiler shell. By adopting the anti burning coal gasification chamber, the throughflow air coefficient alpha of the wind is less than 1, which generally is controlled about 0.8. In order to ensure the gasification temperature, the thermal insulation gasification chamber is provided. The coal inlet adopts a sealing furnace door, which ensures the natural positive pressure running in the gasification chamber. As adopting a dismountable cooling water grate, the grate can be replaced immediately. By utilizing the high temperature scorching coke flame from the coal gasification chamber, the coal gas in the second chamber can be ignited successfully. The conversion heating surface adopts such a structure as unilateral upright smoke pipe, which prevents the inner space of the pipe form blocking, and improves the working efficiency of the boiler. Compared with the general anti burning boiler, as adopting gasification before burning, the utility model reduces the pollution of smoke discharge, and improves the thermal efficiency of the boiler. The boiler is characterized by simple structure, easy manufacturing and low manufacturing cost.

Description

Small-sized reverse-burning gas boiler

One, affiliated technical field

The utility model belongs to field of boilers, and relating generally to all kinds of coals is the boiler of fuel, and particularly a kind of is fuel with all kinds of coals, is applicable to the small-sized reverse-burning gas boiler of producing the not high hot water of quality requirements.

Two, background technology

China is to be the country of main energy sources with coal, and coal accounts for 75% in primary energy, and wherein about 60% all be used for industry or civil boiler.Industry at present or civil boiler major part are obtained heat energy by direct burning raw coal.Coal directly burning exists two big shortcomings: the one, contain a large amount of uncombusted carbon granules and a large amount of dust in discharging fume, seriously polluted to environment.The 2nd, the utilization ratio of coal is low, wastes excessive.Along with improving constantly of people's living standard, people are also more and more higher to the requirement of the environmental quality of being lived.At present, large-scale Coal Gasification Technology has obtained good development and application, but small-sized coal gasification boiler technology is still far from perfect.

Three, summary of the invention

The purpose of this utility model is, provides a kind of production cost low, easy to manufacture, simple in structure, the convenient small-sized reverse-burning gas boiler that uses, and emphasis solves the over-emitting black exhaust problem of conventional miniature boiler.

In order to reach above-mentioned goal of the invention, the technical solution of the utility model realizes as follows:

This small-sized reverse-burning gas boiler comprises: coal-in port, adiabatic furnace wall, deslagging chamber, changeable type water-cooled grate, water-cooled grate collection case, overfiren air port, burner hearth, convection heating surface, smoke discharging pipe, the indispensable annex of boiler shell and boiler; Its design feature is, also include the secondary combustion chamber and the coal gasification chamber that are arranged on the deslagging chamber top, the coal gasification chamber is arranged in the top of secondary combustion chamber, there is the blower fan air outlet top of coal gasification chamber, one side secondary combustion chamber be provided with the air port, the another side of secondary combustion chamber is a burner hearth, arranged beneath has deslagging chamber, secondary coal gas is fully burned at burner hearth, and the top of burner hearth arranges that the convection heating surface and the working-medium water of one way carry out heat exchange, wherein are provided with exhaust opening and delivery port; Boiler shell is " U " type structure, and coal-in port is provided with sealing door, and an end of water-cooled grate is provided with water inlet, and water-cooled grate is connected with boiler shell by tube connector.

Some other characteristics of the present utility model are that in order to guarantee the gasification temperature of coal gasification chamber, adiabatic protecting wall structure is adopted in the coal gasification chamber.For the fire grate that guarantees the coal gasification chamber at high temperature works long hours, adopt detachable water-cooled grate.

The size control of wind supply quantity is the key factor of the normal operation of the utility model.In order to reach the purpose of stable gasification, adopt blower fan to force air feed, by valve control wind supply quantity.Generally excess air coefficient α is controlled at about 0.8, through preliminary laboratory gasification experiment, gasification is stablized feasible with this understanding.The coal gas that produces is in the effect down-firing burning of the red-hot cinder of high temperature.Combustion position in the burner hearth is near the burning of gaseous fuel at this moment.Uncompleted burned carbon that burning produces and the content of dust in flue gas seldom can solve the problem of chimney over-emitting black exhaust basically, to eliminating atmosphere pollution good result are arranged.

The utility model is compared with prior art, has simple in structurely, reasonable in design, easy to manufacture, and the characteristics that production cost is low have popularizing value widely.

Four, description of drawings

Fig. 1 is a structural front view of the present utility model;

Fig. 2 is a structure vertical view of the present utility model.

Five, the specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing and concrete embodiment:

With reference to figure 1 and Fig. 2 as can be known, small-sized reverse-burning gas boiler comprises: coal-in port 1, adiabatic furnace wall 13, deslagging chamber 7, changeable type water-cooled grate 3, water-cooled grate collection case 8, overfiren air port 4, burner hearth 9, convection heating surface 10, smoke discharging pipe 12, the indispensable annex of boiler shell 16 and boiler; Also include the secondary combustion chamber 6 and the coal gasification chamber 2 that are arranged on deslagging chamber 7 tops, coal gasification chamber 2 is arranged in the top of secondary combustion chamber 6, there is blower fan air outlet 14 top of coal gasification chamber 2, one side of secondary combustion chamber 6 is provided with air port 5, the another side of secondary combustion chamber is a burner hearth 9, and arranged beneath has deslagging chamber 7, and secondary coal gas is fully burned at burner hearth 9, the top of burner hearth 9 arranges that the convection heating surface 10 of one way carries out heat exchange with working-medium water, wherein is provided with exhaust opening 12 and delivery port 11; Boiler shell 16 is " U " type structure, and coal-in port 1 is provided with sealing door, and an end of water-cooled grate 3 is provided with water inlet 17, and water-cooled grate 3 is connected with boiler shell 16 by tube connector 15.

When manipulating the utility model, in boiler shell 16, add a certain amount of water in advance, add raw coal by coal-in port 1 coal supply vaporizer 2, coal seam thickness is controlled at 600-800mm, lights from the top coal supply heating in coal seam.By air outlet 14 air feeds, the control wind supply quantity makes α about 0.8, guarantees the smooth generation of coal gas with blower fan.Because vaporizer is to move under the operating mode of malleation, in order to guarantee the operate as normal of vaporizer, coal-in port adopts sealing door.When the coal gas that produces passes through secondary combustion chamber 6, be preset at the effect down-firing burning of the red-hot cinder of high temperature in the secondary combustion chamber 6; And fully burning in burner hearth 9.Secondary combustion chamber 6 and burner hearth 9 be by air port 5 gravity-flow ventilations, and how many sizes by the control air door of ventilation realize.The high-temperature flue gas that is come out by burner hearth 9 washes away convection heating surface 10, carries out heat exchange with working-medium water.Flue gas is discharged by back-end ductwork at last.Because from the indoor generation of coal gasification is oxidation and reduction reaction, almost there is not the generation of carbon granule and dust, burning in the burner hearth 9 is the burning of coal gas, therefore, the carbon granule in the boiler exhaust gas and the content of dust are very little, substantially solved the problem of boiler over-emitting black exhaust, greatly reduced the pollution of conventional boiler smoke evacuation air.Water-cooled grate 3 links to each other with shell 16 by tube connector 15, therefore when water-cooled grate can not use owing to in-tube fouling, just can be convenient for changing as long as unload the tube connector on both sides.

Claims (4)

1. a small-sized reverse-burning gas boiler comprises: coal-in port [1], adiabatic furnace wall [13], deslagging chamber [7], changeable type water-cooled grate [3], water-cooled grate collection case [8], overfiren air port [4], burner hearth [9], convection heating surface [10], smoke discharging pipe [12], the indispensable annex of boiler shell [16] and boiler; It is characterized in that, also include the secondary combustion chamber [6] and coal gasification chamber [2] that are arranged on deslagging chamber [7] top, coal gasification chamber [2] is arranged in the top of secondary combustion chamber [6], there is blower fan air outlet [14] top of coal gasification chamber [2], one side of secondary combustion chamber [6] is provided with air port [5], the another side of secondary combustion chamber is burner hearth [9], arranged beneath has deslagging chamber [7], secondary coal gas is fully burned at burner hearth [9], the top of burner hearth [9] arranges that the convection heating surface [10] of one way and working-medium water carry out heat exchange, wherein are provided with exhaust opening [12] and delivery port [11];
Boiler shell [16] is " U " type structure, and coal-in port [1] is provided with sealing door, and an end of water-cooled grate [3] is provided with water inlet [17], and water-cooled grate [3] is connected with boiler shell [16] by tube connector [15].
2. according to the described small-sized reverse-burning gas boiler of claim 1, it is characterized in that described vaporizer [2] adopts adiabatic protecting wall structure and forced ventilation.
3. according to the described small-sized reverse-burning gas boiler of claim 1, it is characterized in that the wind supply quantity α of described air outlet [14] is controlled to be 0.8.
4. according to claim 1 and 2 described small-sized reverse-burning gas boilers, it is characterized in that the water-cooled grate of described boiler [3] is detachable, link to each other with boiler shell [16] with tube connector.
CNU032188919U 2003-05-14 2003-05-14 Small-sized inverse combustion coal gasification boiler CN2624057Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU032188919U CN2624057Y (en) 2003-05-14 2003-05-14 Small-sized inverse combustion coal gasification boiler

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU032188919U CN2624057Y (en) 2003-05-14 2003-05-14 Small-sized inverse combustion coal gasification boiler

Publications (1)

Publication Number Publication Date
CN2624057Y true CN2624057Y (en) 2004-07-07

Family

ID=34244078

Family Applications (1)

Application Number Title Priority Date Filing Date
CNU032188919U CN2624057Y (en) 2003-05-14 2003-05-14 Small-sized inverse combustion coal gasification boiler

Country Status (1)

Country Link
CN (1) CN2624057Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100445663C (en) * 2006-09-29 2008-12-24 贾树峰 Strong burning after burning automatic long boiling drinking water boiler
CN100462663C (en) * 2006-11-10 2009-02-18 中南大学 A high-temperature low-oxygen air burning boiler and method employed thereof
CN102003789A (en) * 2010-12-08 2011-04-06 李茂枝 Reburning type energy-saving and environment-protected heating boiler
CN103759296A (en) * 2014-01-11 2014-04-30 孙长杰 Dual-body environment-friendly biomass boiler
CN106402844A (en) * 2016-08-31 2017-02-15 吉林省日晟节能环保技术开发有限公司 Efficient and energy-saving biomass gasification combustion boiler and application thereof

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN100445663C (en) * 2006-09-29 2008-12-24 贾树峰 Strong burning after burning automatic long boiling drinking water boiler
CN100462663C (en) * 2006-11-10 2009-02-18 中南大学 A high-temperature low-oxygen air burning boiler and method employed thereof
CN102003789A (en) * 2010-12-08 2011-04-06 李茂枝 Reburning type energy-saving and environment-protected heating boiler
CN103759296A (en) * 2014-01-11 2014-04-30 孙长杰 Dual-body environment-friendly biomass boiler
CN106402844A (en) * 2016-08-31 2017-02-15 吉林省日晟节能环保技术开发有限公司 Efficient and energy-saving biomass gasification combustion boiler and application thereof

Similar Documents

Publication Publication Date Title
CN201507930U (en) Straight-line destructor
CN201203263Y (en) Tube arranging type hot-air stove
CN2835884Y (en) Hot blast heating boiler with biomass briquette fuel
CN102644911A (en) Vertical coal dust corner tube boiler
CN102759130A (en) Waste heat recovering efficient gas stove
CN101037193A (en) Technology and device for producing yellow Phosphorus by electric oven process
CN2879022Y (en) Biomass vaporization boiler
CN103206711A (en) Heat accumulating type double-volute flat flame burner nozzle
CN101793433B (en) Hot-air air conditioner using biomass fuel
CN202902245U (en) Upright-type coal powder corner-tube boiler
CN2864378Y (en) Multistage multi-room gas boiler for coal gasification
CN2906375Y (en) Coking and heating double-purpose furnace using biomass granular fuel
CN201569136U (en) Efficient coal-fired gasification energy-saving boiler by using far infrared heat pipes
CN202973184U (en) Multi-purpose full-automatic biomass particle fuel overflow furnace capable of cooking, heating and bathing
CN203382777U (en) Hot-blast furnace
CN204693800U (en) A kind of high-effect heat absorption boiler
CN205065700U (en) Novel high -efficiency biological matter combustor
CN204529765U (en) A kind of biomass gasification fired heating system for Industrial Stoves
CN102393070B (en) Energy-saving hot-air boiler
CN202757154U (en) Waste heat recovery high-efficiency gas stove
CN200949813Y (en) Oil field coal-burning gas-injection boiler
CN202281217U (en) Micro-emission energy-saving coal-to-gas boiler
CN201964462U (en) High-efficiency energy-saving furnace with ring-shaped flue
CN2847195Y (en) High temperature rotary kiln
CN103062747A (en) Vertical type coal dust corner tube boiler

Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
CF01 Termination of patent right due to non-payment of annual fee
C19 Lapse of patent right due to non-payment of the annual fee