CN2117568U

CN2117568U - Hot pipe boiler with seperating phase combustion

Info

Publication number: CN2117568U
Application number: CN 92201230
Authority: CN
Inventors: 朱友良
Original assignee: WUJIANG HOT TUBE BOILER PLANT
Current assignee: WUJIANG HOT TUBE BOILER PLANT
Priority date: 1992-01-18
Filing date: 1992-01-18
Publication date: 1992-09-30

Abstract

The utility model relates to a hot pipe boiler which can make separating phase combustion for the coal, improving the structure of the existing hot pipe boiler. The inner part of a combustion chamber is provided with a layer of positive burning fire grate, and a coal feeding chamber is arranged at the side of the combustion chamber. A partition wall with a passage is arranged between the combustion chamber and the coal feeding chamber, and the other side of the coal feeding chamber is provided with a trapezoidal fire grate. Before the coal is fed to the fire grate of the combustion chamber, the boiler makes the coal generate the coal gas by dry distillation in the coal feeding chamber in advance, and then, the coal gas enters in the combustion chamber to make combustion. Therefore, the coal combustion is more sufficient, the heat efficiency is improved, and the smoke exhaust is very little.

Description

Hot pipe boiler with seperating phase combustion

The utility model belongs to a kind of low-pressure boiler.

The general double-layer grate that adopts upper and lower setting in the combustion chamber of existing heat pipe boiler, " the anti-boiler for domestic that burns of heat pipe grate " (patent No.: 88202557.0) reach " the anti-boiler for domestic that burns of side putting type heat pipe grate " (patent No.: be exactly to adopt this double-layer grate in the combustion chamber 89029087.1) as our factory's invention, coal is the anti-mode of burning of naked light when burning, realize second-time burning though can make coal like this, but be solid-state burning, the thermal efficiency is still not very good, still has a certain amount of soot emissions during burning.

The purpose of this utility model provides a kind of new heat pipe boiler, coal can be realized burning phase-splitting, be to carry out destructive distillation generation coal gas before the coal combustion earlier to enter combustion chambers burn, coal after the destructive distillation is added to burning again on the fire grate of combustion chamber, gaseous state, solid-state burning phase-splitting like this, make coal combustion more abundant, thermal efficiency height, soot emissions greatly reduce.

The utility model comprises drum (1), combustion chamber (13) and fire grate (7) thereof, coal chamber (4), smoke exhaust pipe (12), be placed in the drum (1) and its bringing-up section is inserted the heat pipe (2) of combustion chamber (13), coal chamber (4) places the side of combustion chamber (13), be provided with the partition wall (3) of gas passage (5) between combustion chamber (13) and coal chamber (4), coal chamber (4) opposite side is provided with a trapezoidal fire grate (6).

In order to make full use of the waste heat of flue gas in the smoke exhaust pipe (12), at drum (1) sidewall several heat pipes (11) can be set, its bringing-up section is inserted smoke exhaust pipe (12).

The utility model is when work, the coal that adds is gone up burning at combustion chamber fire grate (7) earlier, coal coal to adding coal chamber, back (4) when burning carries out destructive distillation, because coal chamber (4) opposite side is provided with trapezoidal fire grate (6), so the coal gas that the dry distillation of coal produces is sent into combustion chamber (13) burning by the air intake of trapezoidal fire grate (6) through gas passage (5), coal after the destructive distillation, shift burning again on the combustion chamber fire grate (7) onto by upper furnace door (8), coal improves through the thermal efficiency behind the burning phase-splitting like this, and the discharging of flue dust seldom.

Fig. 1 is a structural representation of the present utility model.

1 is drum among the figure, and 2 is the combustion chamber heat pipe, and 3 is the partition wall between combustion chamber and the coal chamber, 4 is the coal chamber, and 5 is the gas passage of partition wall (3), and 6 is trapezoidal fire grate, 7 is the combustion chamber fire grate, and 8 is upper furnace door, can will shift onto on the combustion chamber fire grate (7) through the coal after the destructive distillation by this fire door, 9 is framework, 10 is lower furnace door, and 11 is the smoke exhaust pipe heat pipe, and 12 is smoke exhaust pipe, 13 is the combustion chamber, and 14 is the smoke exhaust pipe shoot door.

Drum of the present utility model (1) adopts the 20g boiler plate to make, the carbon steel gravity assisted heat pipe is adopted in heat pipe (2) and (11), combustion chamber fire grate (7) and trapezoidal fire grate (6) adopt casting furnace grate, framework (9) is made of steel plate, and the burner hearth of partition wall (3) and combustion chamber (13) adopts refractory material to make.

Safety valve is equipped with at drum of the present utility model top, Pressure gauge, and device and cover supply and drain water system and other control pieces such as water level meter, thermometer are equipped with in the drum side.

Claims

1, a kind of heat pipe boiler, comprise drum, combustion chamber and fire grate thereof, coal chamber, smoke exhaust pipe, be placed in the drum and its bringing-up section is inserted the heat pipe of combustion chamber, it is characterized in that the coal chamber places the combustion chamber side, be provided with the partition wall of gas passage between combustion chamber and the coal chamber, coal chamber opposite side is provided with a trapezoidal fire grate.