CN201074898Y

CN201074898Y - Environment protection energy-saving boiler type stalk gasification boiler

Info

Publication number: CN201074898Y
Application number: CNU2007200118371U
Authority: CN
Inventors: 修天润
Original assignee: Individual
Current assignee: Individual
Priority date: 2007-04-22
Filing date: 2007-04-22
Publication date: 2008-06-18
Anticipated expiration: 2017-04-22

Abstract

The utility model relates to an environment-friendly energy-conservation straw gasification boiler, belonging to the design and manufacturing technical field of straw gasification boilers. The utility model comprises a boiler body and an ignition furnace. An equal pore board is arranged on the lower part of the boiler body. An atmospheric pressure steam generator is arranged on the left side ear of the boiler body, and a spiral coil tube is arranged in the internal part of the generator. Three vertical faces of an outer casing of the ignition furnace are provided with a second-time air distribution header. The work of the utility model adopts straw granule pressed blocks as fuels, and burning straw granule pressed blocks generates coal gas through air supplying and oxidation for combustion of the boiler body. The utility model is characterized in that the arranged atmospheric pressure steam generator not only can provide enough steam to result in better gasification effect, but also can avoid coking in a gasification chamber. The second-time air distribution header can lead supplied air to be thoroughly mixed with the coal gas for complete combustion, thus avoiding black smoke. Moreover, a horizontal water pipe with a peach-shaped section can avoid ash accumulation so as to enhance a heat transmission effect. The utility model is characterized in that the structure is simple; the design is reasonable; the boiler is good for environment protection and the energy can be conserved.

Description

Environment-friendly and energy-efficient gasifying stalk boiler

Technical field

The utility model belongs to gasifying stalk boiler design and manufacturing technology field.

Background technology

The gasification coal-fired boiler of Xiao Shouing exists problems in the market, must constantly add fuel such as its ignition furnace, has not only increased stoker personnel's labour intensity, and the inleakage of boiler is increased, and has reduced boiler efficiency.Simultaneously this stove black smoke of constantly emerging when blowing out causes environmental pollution.Because secondary wind layout is inhomogeneous, cause and coal gas undercompounding in addition, occur the phenomenon of chimney over-emitting black exhaust through regular meeting.Condensed water on the chimney often is dropped on the stove, can produce corrosion to body of heater again.Horizontal water tube also can reduce boiler efficiency owing to reason in shape produces dust stratification.In addition, for existing heat of gasification kettle, do not have the steam source, it is far from being enough only depending on the micro-steam participation burning and the cooling fuel bed of the lime-ash generation that falls into the water.Certainly will cause a large amount of cokings in the gas generating chamber.The transformation efficiency that had both reduced coal gas causes boiler efficiency to descend.Removing coking has increased labour intensity for again the stoker personnel.Therefore say that present gasification boiler is not very desirable in design.

Summary of the invention

The purpose of this utility model provides and a kind ofly can improve boiler efficiency effectively, and environmental protection and energy saving alleviate the gasifying stalk boiler of stoker's personnel labor intensity, have solved the practical problem that existing product exists in the use.

The utility model is as shown in drawings: be made of boiler body and ignition furnace, the bottom of boiler body has one group of circular horizontal water tube.Boiler body is divided into two parts up and down.The bottom of boiler body is a gas generating chamber.One equal spiracular plate is arranged in the boiler body bottom.On the body of heater bearing, have wind air feed pipe one time.On the boiler body left side, an atmospheric steam generator is arranged, a spiral coil is arranged in the generator.The logical slotted eye circle of spiral coil inserts in the body of heater.On flue, have peach shape section horizontal water tube.One water collector is arranged on the impact tube of boiler body.In the ignition furnace bottom wind air feed of one ignition furnace pipe is arranged.Have secondary wind air feed pipe on the top of an air feed pipe of ignition furnace.On three facades of ignition furnace shell, have secondary air separating and join the collection case.On the allocation set case, have escape pipe.At ignition furnace cavity top band point firebrick.In ignition furnace shell left side one inspection door is arranged.Secondary wind air feed pipe when one blowing out is arranged on the inspection door.One steam outlet pipe is arranged on steam generator.

Work of the present utility model is to be fuel with the stalk particle briquetting, and its using method is: at first each air feed pipe is linked to each other with air blast.Place coal in the ignition furnace, place the stalk particle briquetting in the gas generator.Close secondary air channel, ignition simultaneously.When gas generator has certain fire in a stove before fuel is added, close air blast, stalk is added expires, and has produced a small amount of coal gas this moment.When some firebrick in the stove is burnt when red, coal gas is ignited coal gas by a firebrick by smoke inlet point stove.The flue gas that produces enters in the flue peach shape section horizontal water tube is heated, thereby the water of flue outside is heated.This moment, the atmospheric steam generator produced water vapour, and directly import a wind air feed mouth and a wind and be mixed into gas generating chamber, for the stalk of burning provides oxygen and water vapour, producing more coal gas, and the cooling fuel bed.Make it the fuel bed noncoking.So just saved the trouble of coke cleaning.Because it is to arrange on three facades of ignition furnace that secondary air separating is joined the collection case, so air feed is even, wind is fully mixed with coal gas, makes gas-fired more abundant.Can not produce black smoke, when blowing out, close air blast, secondary wind air feed pipe relies on the draft of chimney when opening blowing out, sucks secondary wind, makes the boiler normal combustion, not over-emitting black exhaust.In addition, owing to have peach shape section horizontal water tube.Its setting is that the tip makes progress.Will avoid the horizontal water tube superficial dust like this, improve heat-transfer effect.The utility model is simple in structure, and is reasonable in design.Owing on three facades of ignition furnace shell, have secondary distribution collection case, make secondary wind air feed even, sufficient combustion is over-emitting black exhaust not, has peach shape section horizontal water tube and makes above the pipe not dust stratification, improves heat-transfer effect.Have the atmospheric steam generator and make the vaporizer noncoking, reduce labor intensity.Compare with existing product and to have certain advantage and good effect.

Description of drawings

Accompanying drawing is the utility model structural representation

The equal spiracular plate 19-of the secondary wind air feed pipe 8-point firebrick 9-ignition furnace shell 10-peach shape section horizontal water tube 11-boiler body 12-water collector 13-escape pipe 14-atmospheric steam generator 15-circular horizontal water tube 17-18-of gas generating chamber of spiral coil 16-ignition furnace when an air feed pipe of a wind air feed of 1-pipe 2-ignition furnace 3-secondary wind air feed pipe 4-secondary air separating is joined collection case 5-secondary wind discharge pipe 6-inspection door 7-blowing out

Fig. 2 is the utility model left view

13-escape pipe 14-atmospheric steam generator

Fig. 3 is a peach shape section horizontal water tube sectional drawing in the utility model

The specific embodiment

The utility model is as shown in drawings: be made of boiler body (11) and ignition furnace (19), the bottom of boiler body has one group of circular horizontal water tube of circular horizontal water tube (16) and is welded on the flue.Circular horizontal water tube outside cladding refractory concrete layer.Boiler body is divided into two parts up and down.The bottom of boiler body is gas generating chamber (17).One equal spiracular plate (18) is arranged in the boiler body bottom.On the body of heater bearing, have a wind air feed pipe (1).The air feed pipe connects air blast.The boiler body front has gas generating chamber's filler door and the door of scratching in the ashes.On the boiler body left side, an atmospheric steam generator (14) is arranged, a spiral coil (15) is arranged in the generator.The logical slotted eye circle of spiral coil inserts in the body of heater.On flue, have peach shape section horizontal water tube (10).One water collector (12) is arranged on the impact tube of boiler body.In the ignition furnace bottom one ignition furnace wind air feed pipe (2) is arranged.Igniting body of heater bottom has fire grate.Have secondary wind air feed pipe (3) on the top of an air feed pipe of ignition furnace.On three facades of ignition furnace shell (9), have secondary air separating and join collection case (4).On the allocation set case, have escape pipe (5).At ignition furnace cavity top band point firebrick (8).In ignition furnace shell left side one inspection door (6) is arranged.Secondary wind air feed pipe (7) when one blowing out is arranged on the inspection door.One steam outlet pipe (13) is arranged on steam generator.

Claims

Environment-friendly and energy-efficient gasifying stalk boiler, constitute by boiler body (11) and ignition furnace (19), it is characterized in that: an equal spiracular plate (18) is arranged in the boiler body bottom, on the boiler body left side, an atmospheric steam generator (14) is arranged, one spiral coil (15) is arranged in the generator, on flue, have peach shape section horizontal water tube (10), one water collector (12) is arranged on the impact tube of boiler body, have secondary wind air feed pipe (3) on the top of an air feed pipe of ignition furnace, on three facades of ignition furnace shell (9), have secondary air separating and join collection case (4), on the allocation set case, have escape pipe (5), at ignition furnace cavity top band point firebrick (8), in ignition furnace shell left side one inspection door (6) is arranged, secondary wind air feed pipe (a 7) when blowing out is arranged on the inspection door has a steam outlet pipe (13) on steam generator.