CN2388547Y

CN2388547Y - High-efficient pollutionless boiler

Info

Publication number: CN2388547Y
Application number: CN 99216498
Authority: CN
Inventors: 乔俊哲
Original assignee: Individual
Current assignee: Individual
Priority date: 1999-07-13
Filing date: 1999-07-13
Publication date: 2000-07-19
Anticipated expiration: 2009-07-13

Abstract

The utility model relates to a high-efficient environmental protection boiler, which belongs to a small-sized vertical low-pressure steam boiler or a hot water stove. A secondary air pipe passing through a coal burning layer at the center of the bottom of the boiler reaches the middle part of a hearth, and secondary air is blown into the hearth from air outlets which are uniformly distributed on the pipe wall of the end part of the air pipe to burn out coal and side reaction products thereof CO, H2, etc.; an internal sleeve of the boiler is arranged at the upper part of the hearth to form a labyrinth type structure; moreover, a rotating water storage ash tray is adopted, and the utility model can automatically discharge slag. Therefore, compared with similar boilers, the high-efficient environmental protection boiler has the advantages of high thermal efficiency, clean smoke gas, no pollution, accordance with environmental protection requirements, good operation environment, and low labor intensity.

Description

High-efficiency environment-friendly boiler

The utility model belongs to field of boilers

Coal-burning boiler mainly contains several parts such as boiler body, last coal, deslagging, air-supply, last water and constitutes, and non-technical small low-voltage steam vertical boiler or water heater are not often established deduster, economizer equipment, therefore, not only the thermal efficiency is very low, and smoke harm is very big, serious environment pollution.

The purpose of this utility model is to provide a kind of new construction, and is little to produce heat loss, efficient height, the efficient boiler of the suitable environmental requirement of no smoke contamination.

This high-efficiency environment-friendly boiler, mainly comprise boiler furnace (6), at body of heater (6) interior cover (7) is set, interior cover (7) cavity bottom is burner hearth (5), top is chimney (8), fire door (11) is arranged in the middle of the body of heater (6), coal bunker (9), coal feeder (10) be equipped with and, body of heater (6) bottom is provided with plenum chamber and grate (3) and ash-pan (2), ash-pan (2) is gone up at main shaft (12) and is rotated, it is characterized in that burner hearth (5) central authorities are provided with secondary air channel (4), secondary air channel (4) passes coal-fired layer in boiler bottom central authorities, enters burner hearth (5) middle part.

The end of secondary air channel (4) also can seal, and is evenly distributed with exhaust vent on its tube wall; The interior cover (7) of boiler becomes the labyrinth-like structure on the top of burner hearth (5), has several layers to catch ash and heat transfer cavity, is communicated by pipe between cavity, and the nozzle position between cavity staggers up and down.

This high-efficiency environment-friendly boiler is compared with existing similar boiler, and naked eyes be can not see fume emission, and pollution-free, slag does not play ash, airborne dust not, because employing, the upper furnace of secondary wind have the labyrinth-like structure again, has so just improved the thermal efficiency widely.

The utility model is described in further detail below in conjunction with embodiment shown in the drawings.

Fig. 1 is high-efficiency environment-friendly boiler embodiment 1 structural representation.

Fig. 2 is the structural representation of this high-efficiency environment-friendly boiler embodiment 2.

Such as safety valve, maintenance hand hole, water level meter, Pressure gauge, furnace body support, Shang Shui, backwater, blowoff valve etc., do not represent in the drawings.

Embodiment 1, with reference to Fig. 1 fire coal by coal bunker (9), enter burner hearth (5) through coal feeder (10), pressure fan (1) blasts plenum chamber and grate (3) with air, wind is blown into burner hearth (5) from the finedraw of grate, secondary air channel (4) passes coal-fired layer in boiler bottom central authorities, after giving heat, enter burner hearth (5) middle part, secondary wind some exhaust vents that evenly distribute from the tube wall of this branch wind pipe (4) end are blown into burner hearth (5), coal and side reaction product CO thereof burnout, H2 etc., because the employing of this secondary wind, coal-fired layer can be thickeied, the blow rate required can reduce, then reduced the generation of dust widely, flue gas from bottom to top successively passes and enters chimney (8) through the pipe in the burner hearth internal cavity, further absorb heat at this, reduce the heat loss that fume emission caused, also stoped taking out of of cigarette ash, cavity dust stratification simultaneously, regularly clear away through hand hole, motor and transmission mechanism (13) rotate ash-pan (2), the interior water of ash-pan (2), and keep certain water level, slag slips out through scraper plate and ash bucket, do not play ash, airborne dust not, good operational environment, labour intensity is low.

Embodiment 2, with reference to Fig. 2, wherein piece number (14) is a fire grate, piece number (15) is wind air outlet and plenum chamber, for at the old-fashioned small scale vertical boiler that uses or form product, can transform with reference to this figure, secondary, airduct (4), come in from a wind plenum chamber, pass the middle part that fire grate (14) enters burner hearth (5) in the stove bottom center, secondary wind is blown into burner hearth (5) in equally distributed some exhaust vents from the tube wall of this branch wind pipe (4) end, coal and side reaction product CO, H burnout ₂Deng, because the employing of this secondary wind, coal-fired layer can be thickeied, the blow rate required can reduce, and has then reduced the generation of dust widely, reduces the heat loss that soot emissions caused, and improves the thermal efficiency, makes boiler for producing operation compliance with environmental protection requirements.

Claims

1, high-efficiency environment-friendly boiler, mainly comprise boiler furnace (6), interior cover (7) is arranged in body of heater (6), interior cover (7) cavity bottom is burner hearth (5), top is chimney (8), there is fire door (11) centre of body of heater (6), and is furnished with coal bunker (9), coal feeder (10), body of heater (6) bottom are provided with plenum chamber and grate (3) and ash-pan (2), the interior water of ash-pan (2), motor and transmission mechanism (13) drive ash-pan (2) and go up rotation at main shaft (12), it is characterized in that burner hearth (5) central authorities are provided with secondary air channel (4), secondary air channel (4) passes coal-fired layer in boiler bottom central authorities, enters burner hearth (5) middle part.

2, according to the described high-efficiency environment-friendly boiler of claim 1, it is characterized in that the end of secondary air channel (4) also can seal, on its tube wall, be evenly distributed with exhaust vent.