CN2888301Y

CN2888301Y - Coal-fired stove

Info

Publication number: CN2888301Y
Application number: CN 200620022856
Authority: CN
Inventors: 顾廷路
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-03-28
Filing date: 2006-03-28
Publication date: 2007-04-11
Anticipated expiration: 2016-03-28

Abstract

A coal oven belongs to the burning equipment field, is mainly to solve the insufficient combustion and low heating efficiency, having the common coal oven basic structure, contains an oven body(1), an oven chamber(2), an oven tray(3), an oven mouth(4), an oven cover(5), an oven grate(6), a water jacket heating exchange device(7), a smoke exhaust pipe(8) and the accessories, has the characteristics in that the water jacket heating exchange device(7) has three layers structure communicated with each other, an inner layer water jacket(9) suspended on the top of the oven chamber(2), a middle layer water jacket(12) leaned against the main wall(19) of the oven chamber(2) and an outer layer water jacket(17), between which and the middle layer water jacket is equipped with two times burning chamber(19), between the oven chamber(2) and the two times burning chamber(19) is equipped with a oven gas passage(20), on the two times burning chamber(19) is installed with a side flue pipe(8), on which is equipped with a smoke pipe heating exchanger(22), and the oven tray(3) is also to form the cone fuel house wall. The utility model has the advantages of high oven chamber temperature, thorough combustion, less solid char sediment, high outlet water temperature, high heating recycling and utilization efficiency, benefits to the environment protection and energy saving.

Description

A kind of coal furnace

Technical field

The utility model belongs to the combustion apparatus field, relates to a kind of combustion matchmaker stove.

Background technology

Existing common coal furnace is generally except that having directly fire door cooking is used, one deck water leg directly is housed on body of heater mostly, be used for heating after the heat exchange, but the heat exchange effect is undesirable, and for flue gas waste heat recovery, because fuel mostly is the upper-burning ordinary combustion, the chimney import all is located at the last side of fire door, no matter is jacket type or shell and tube heat exchange therefore, effect is all not good, the one, burner hearth fuel combustion furnace temperature in bad order is low, opens that the fire door temperature reduces behind the bell, is easy to smolder, contaminated environment, the 2nd, the heat in the burner hearth and the heat heat exchange of flue gas are derived and reclaim insufficient, so the residual height of fixed carbon, and smoke emissioning pollution is big.

Summary of the invention

The technical problem that solves:

Adopt downdraft gasification, and combustion principle, smoke evacuation of burner hearth side and heat exchange, and the structure of change water leg overcome the deficiencies in the prior art, make the burner hearth fuel combustion complete, the furnace temperature height is opened fire door cooking temperature height behind the bell, and is not smoldered, the heat heat exchange derivation and the organic efficiency height of heat and flue gas in the burner hearth, residual few because of deciding carbon, smoke emissioning pollution is little, helps energy-conservation and environmental protection.

The technical scheme that adopts:

A kind of coal furnace, basic structure with common coal furnace, body of heater 1, burner hearth 2, stone or metal plate for standing a stove on as a precaution against fire 3, fire door 4, bell 5, grate 6, water leg heat-exchanger rig 7, smoke exhaust pipe 8 and corresponding accessory, it is characterized in that: water leg heat-exchanger rig 7 has the three-decker that is interconnected, internal layer water leg 9 suspension types are positioned at the top of burner hearth 2, invagination wall 10 by burner hearth 2, the wall 11 of tubular fire door 4 and stone or metal plate for standing a stove on as a precaution against fire 3 are formed, mid-water chuck 12 is by the main wall 13 of burner hearth 2, invagination wall 10, outer wall 14, attached plate 15, stone or metal plate for standing a stove on as a precaution against fire 3 and chassis 16 are formed, surrounding water jacket 17 is positioned at outside the mid-water chuck 12, by inwall 18, body of heater 1, attached plate 15, stone or metal plate for standing a stove on as a precaution against fire 3 and chassis 16 are formed; Have secondary combustion chamber 19 between mid-water chuck 12 and the surrounding water jacket 17, have gas passage 20 between burner hearth 2 and the secondary combustion chamber 19, secondary combustion chamber 19 is equipped with lateral row smoke pipe 8.

Beneficial effect:

Basis is novel to belong to downdraft gasification coal furnace, so the inner of the boiler chamber temperature is high, and fuel combustion is complete, open bell fire door place and do not smolder, heat utilization and heat recovery efficiency height, water leg leaving water temperature height, fixed carbon is residual few, and smoke emissioning pollution is little, helps energy-conservation and environmental protection; Easy to use in addition, reinforced long at interval.

Description of drawings

Fig. 1, Overall Group's assembling structure schematic diagram;

The position state diagram of stone or metal plate for standing a stove on as a precaution against fire 3 when Fig. 2, heating special use;

The specific embodiment

Further explanation in detail in conjunction with the accompanying drawings;

Among the figure, 23 are shown the ash door, and 24 are shown the stove seat, and 25,26 are respectively the water import and export, and 27 is the clean-up port of

secondary combustion chamber

19, and 28 is the clean-up port of tubular heat exchanger 22; 29 is heat-insulation layer.

As shown in Figure 1, three layers of water leg are interconnected together as public top shutoff plate by stone or metal plate for standing a stove on as a precaution against fire 3, simultaneously, between the bottom of internal layer water leg 9 and the mid-water chuck 12 water-circulating pipe 34 is housed, also is equipped with communicating pipe 21 in the bottom between mid-water chuck 12 and the surrounding water jacket 17.

As shown in Figure 1, the side direction of secondary combustion chamber 19 is equipped with flue gas tubular heat exchanger 22, is communicated with surrounding water jacket 17 between its pipe, and flue gas is walked in the pipe, removes smoke exhaust pipe 8 after waste heat recovery.

As shown in Figure 2, when being exclusively used in the heat exchange heating, stone or metal plate for standing a stove on as a precaution against fire 3 is cone structure, and forms Bunker 31 by upper plugging plate 30, and feeding cover 32 and inspection socket 33 are arranged.

Burner hearth 2 is the primary zone.

Claims

1, a kind of coal furnace, basic structure with common coal furnace, body of heater (1), burner hearth (2), stone or metal plate for standing a stove on as a precaution against fire (3), fire door (4), bell (5), grate (6), water leg heat-exchanger rig (7), smoke exhaust pipe (8) and corresponding accessory, it is characterized in that: water leg heat-exchanger rig (7) has the three-decker that is interconnected, internal layer water leg (9) suspension type is positioned at the top of burner hearth (2), invagination wall (10) by burner hearth (2), the wall (11) of tubular fire door (4) and stone or metal plate for standing a stove on as a precaution against fire (3) are formed, mid-water chuck (12) is by the main wall (13) of burner hearth (2), invagination wall (10), outer wall (14), attached plate (15), stone or metal plate for standing a stove on as a precaution against fire (3) and chassis (16) are formed, surrounding water jacket (17) is positioned at outside the mid-water chuck (12), by inwall (18), body of heater (1), attached plate (15), stone or metal plate for standing a stove on as a precaution against fire (3) and chassis (16) are formed; Have secondary combustion chamber (19) between mid-water chuck (12) and the surrounding water jacket (17), have gas passage (20) between burner hearth (2) and the secondary combustion chamber (19), secondary combustion chamber (19) is equipped with lateral row smoke pipe (8).

2, a kind of coal furnace according to claim 1, it is characterized in that: three layers of water leg are interconnected together as public top shutoff plate by stone or metal plate for standing a stove on as a precaution against fire (3), simultaneously, between the bottom of internal layer water leg (9) and the mid-water chuck (12) water-circulating pipe (34) is housed, also is equipped with communicating pipe in the bottom between mid-water chuck (12) and the surrounding water jacket (17) (21).

3, a kind of coal furnace according to claim 1 and 2 is characterized in that: the side direction of secondary combustion chamber (19) is equipped with flue gas tubular heat exchanger (22), is communicated with surrounding water jacket (17) between its pipe, and flue gas is walked in the pipe, removes smoke exhaust pipe (8) after waste heat recovery.

4, a kind of coal furnace according to claim 1 and 2 is characterized in that: stone or metal plate for standing a stove on as a precaution against fire (3) is cone structure, and forms Bunker (31) by upper plugging plate (30), and feeding cover (32) and inspection socket (33) are arranged.

5, a kind of coal furnace according to claim 3 is characterized in that: stone or metal plate for standing a stove on as a precaution against fire (3) is cone structure, and forms Bunker (31) by upper plugging plate (30), and feeding cover (32) and inspection socket (33) are arranged.