CN2239432Y

CN2239432Y - Negative pressure convection current gas producer furnace

Info

Publication number: CN2239432Y
Application number: CN 95222224
Authority: CN
Inventors: 张承贤
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-12
Filing date: 1995-09-12
Publication date: 1996-11-06
Anticipated expiration: 2005-09-12

Abstract

The utility model relates to a negative pressure convection current gas producer furnace. The negative pressure convection current gas producer furnace is characterized in that double fire layers are arranged in a furnace body; the upper section is provided with an inverse fire combustion chamber, and the lower section is provided with a normalizing combustion chamber; the inlets of gasifying agent are arranged on a furnace roof and a grate; the outer ring of the grate is provided with the inlet of the gasifying agent of a furnace skirt; the middle part of the furnace body is provided with an annular gas chamber and a middle gas chamber, and the outlets are communicated; the outletsare connected with a high vacuum pump by a heat exchanger; negative pressure can be formed in the furnace; under the action of the negative pressure, the gasifying agent is heated by the heat exchanger and is divided into three ways to enter the furnace and form negative pressure convection current. The utility model has the advantages of even air flow distribution, no dead area, long service life, high temperature in the furnace, even reacting hierarchy, good gas quality, large gas production rate, and low ash carbon contents; the grate is not easy to burn out.

Description

Negative pressure convection type producer gas generator

This utility model relates to a kind of producer gas generator, is a kind of negative pressure convection type producer gas generator.

At present, the producer gas generator kind is a lot, and be broadly divided into two big classes: a class is traditional normalizing furnace, vaporized chemical is advanced down in the bottom-up burning of coal, on go out coal gas, this stove easy burn-out fire grate, gas quality is not high, nuisance content height, another kind of is anti-stove, coal from up to down burns, and vaporized chemical is from enterprising, coal gas under go out, this boiler ash sediment carbon content height, energy dissipation is serious.

The purpose of this utility model provides a kind of negative pressure convection type producer gas generator, and to solve normalizing fire grate easy burn-out, gas quality is poor, the high problem of anti-stove carbon content of cinder.

The purpose of this utility model is achieved in that this stove is made up of producer gas generator and interchanger two portions, and producer gas generator is by body of heater, furnace roof, hopper, electric block, stove leg, fire grate, ash-pan, ash disposal mechanical composition.Be divided into double fire layer in the body of heater, epimere is the reverse fire combustion chamber, and there is furnace roof its upper end, and the vaporized chemical chamber is arranged at the furnace roof bottom, one side has the vaporized chemical import, refractory materials, fire door and bell are arranged at top, and the bottom is provided with conically shaped, the intrinsic inner ring plate in conically shaped lower end, itself and inboard wall of furnace body are formed ring-shaped air chamber, gas exit is arranged on the air chamber, be provided with middle gas chamber below the ring-shaped air chamber, middle gas chamber communicates with the ring-shaped air chamber outlet; Hypomere is the normalizing combustion chamber, its bottom has has vaporized chemical chamber and vaporized chemical import below fire grate, the fire grate, there is stove skirt vaporized chemical chamber the fire grate outer ring, the vaporized chemical import is arranged above, and stove skirt vaporized chemical is provided with ash-pan and ash disposal machinery below the chamber, and coal gas joins through interchanger and vacuum pump, can make formation negative pressure in middle part in the body of heater, under suction function, vaporized chemical (air adds steam) is inhaled into from furnace bottom, stove skirt and furnace roof vaporized chemical chamber through the interchanger heating, forms the negative pressure convection system.

This utility model compared with prior art has the following advantages: 1) the many imports of vaporized chemical, can form stable and uniform zone of oxidation and reducing zone, and fire grate not easy burn-out, life-span is long; 2) be provided with ring-shaped air chamber and middle gas chamber, gas stream in the stove is evenly distributed, and does not have the dead band, the gas quality height, and calorific value can improve 5-10%; 3) be provided with interchanger, heat energy utilization rate height, gasification agent temperature can reach 300-400 ℃, can improve temperature in the stove, for coal gasification has been created favourable condition; 4) adopt double fire layer, can improve single stove gas production rate and mark gasification efficient effectively, reduce carbon content of cinder.

Be described further below in conjunction with accompanying drawing:

Fig. 1 producer gas generator structural representation

Among the figure: electric block (1), hopper (2) is matched according to the stove model, body of heater (5) adopts steel plate to make, water jacket is arranged in it, water coolant (7) is arranged in the water jacket, under water-in (13) is arranged, on vapor outlet port (4) is arranged, support is arranged outside the bottom, be fixed on the ground by bolt and stove leg (12), epimere is the reverse fire combustion chamber in the body of heater, its upper end solid welding or flange are connected with furnace roof (3), vaporized chemical chamber (27) is arranged at the interior bottom of furnace roof (3), the base plate that equal qi-emitting hole is arranged below it, one side has vaporized chemical import (26), refractory materials (28) is arranged at top, fire door (29), be connected with bell (30) by axle on the fire door, salable, can open, bottom, reverse fire combustion chamber is provided with conically shaped (6), its lower end is welded with inner ring plate (8), and coated is gone up in outside in it refractory cements, and inner ring plate (8) is formed ring-shaped air chamber (9) with inboard wall of furnace body, be provided with gas exit (22) above, be provided with middle gas chamber (10) below the ring-shaped air chamber (9), middle gas chamber (10)) be to make by double-layer pipe, internal layer is gas pipe (11), be evenly equipped with gas inlet (21) below it, one end has gas exit (22), is provided with water jacket between outer tube and gas pipe, and it communicates with furnace water jacket, middle gas chamber is in-line, perhaps be triangle star, perhaps be cruciform, the middle gas chamber outlet communicates with the ring-shaped air chamber outlet.Hypomere is the normalizing combustion chamber, there is fire grate (17) at its center, bottom, vaporized chemical chamber (18) is arranged below the fire grate (17), vaporized chemical import (19) is arranged above, there is stove skirt vaporized chemical chamber (14) the fire grate outer ring, vaporized chemical import (20) is arranged above, be evenly equipped with pore on its inwall, be provided with ash-pan (15) and ash disposal machinery (16) below it.The coal-fired coal gas (25) that produces joins through interchanger (24) and vacuum pump, can make the body of heater middle part form negative pressure, under suction function, vaporized chemical (23) (air adds steam), being heated to 300-400 ℃ through interchanger enters in the body of heater, form the negative pressure convection system, be provided with electric block (1) and hopper (2), realize the coaling machine toolization in fire door (29) top.

Claims

1, a kind of negative pressure convection type producer gas generator is made up of producer gas generator and interchanger (24), producer gas generator is by body of heater (5), furnace roof (3), hopper (2), electric block (1), stove leg (12), fire grate (17), ash-pan (15), ash disposal machinery (16) is formed, it is characterized in that: body of heater (5) is divided into double fire layer, epimere is the reverse fire combustion chamber, there is furnace roof (3) its upper end, vaporized chemical chamber (27) is arranged at the furnace roof bottom, one side has vaporized chemical import (26), refractory materials (28) is arranged at top, fire door (29) and bell (30), the bottom is provided with conically shaped (6), annular plate (8) in conically shaped (6) lower end is intrinsic, itself and inboard wall of furnace body are formed ring-shaped air chamber (9), gas exit (22) is arranged on the air chamber (9), middle gas chamber (10) is arranged under the ring-shaped air chamber, middle gas chamber (10) communicates with the ring-shaped air chamber outlet; Hypomere is the normalizing combustion chamber, there is fire grate (17) its lower end, vaporized chemical chamber (18) is arranged below the fire grate (17), vaporized chemical import (19) is arranged above, the fire grate outer ring is provided with stove skirt vaporized chemical chamber (14), vaporized chemical import (20) is arranged above, be provided with ash-pan (15) and ash disposal machinery (16) below the stove skirt vaporized chemical chamber, the coal-fired coal gas (25) that produces joins through interchanger (24) and vacuum pump, and vaporized chemical (23) enters in the body of heater from vaporized chemical import (19), (20), (26) after interchanger (24) heating.

2, producer gas generator according to claim 1, it is characterized in that: middle gas chamber (10) is to be made by double-layer pipe, internal layer is gas pipe (11), be evenly equipped with gas inlet (21) below it, an end has gas exit (22), and outer tube and gas pipe are provided with water jacket between (11), it communicates with furnace water jacket, middle gas chamber is in-line, perhaps is triangle star, perhaps is cruciform.

3, producer gas generator according to claim 1 is characterized in that: be evenly equipped with pore on the inwall of stove skirt vaporized chemical chamber (14).