CN2534521Y

CN2534521Y - Small size back firing tertiary air warming boiler

Info

Publication number: CN2534521Y
Application number: CN 02200342
Authority: CN
Inventors: 刘幼林; 杨明珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-07
Filing date: 2002-01-07
Publication date: 2003-02-05
Anticipated expiration: 2012-01-07

Abstract

The utility model discloses a small counter-combustion triple-wind heating boiler that has a box-typed structure, which consists of a counter-combustion furnace hearth, a combustion chamber, a second combustion chamber and a flue. The utility model adopts the counter-combustion way cooperated with the secondary and the triple winds, thereby the combustion is more reasonable and sufficient so as to reach a favorable effect of energy saving and environment protection. The utility model can use the gas coal, the anthracite coal and the briquette coal. For the counter combustion way and the appropriate cooperation of the secondary wind and the triple wind, the utility model is convenient and simple to operate and the heating efficiency can reach more than 75 percent; the utility model has favorable effect on removing the smoke and the dust, which can meet the requirements of the smoke-dust exhaustion and the blackness in the first category stipulated in GB13271-2001 Emission Standard of Air Pollutants for Boilers.

Description

A kind of small-sized anti-burning tertiary air heating boiler

The utility model relates to small heater, bathing multipurpose boiler.

At present; the heating of domestic town-dweller-rural-family, small-sized enterprises and institutions, bath boiler mostly are raw coal directly burning in burner hearth; because of environmental protection limit smoke emission request increasingly stringent,, increase secondary wind for eliminating the black smoke and the raising thermal efficiency that direct burning produces more.The effect that has is better, but complex structure, and cost of manufacture is also high; What have is simple in structure, but result of use is relatively poor.For the energy resource structure of the vast town and country of China based on fire coal, adopt the structure of renewal and the energy that combustion method improves the thermal efficiency, saves valuable, and make great efforts to reduce Air Pollutant Emission, protection environment, be significant.

The purpose of this utility model is to propose a kind of small-sized anti-burning tertiary air heating boiler, and this kind boiler adopts anti-the burning, and is equipped with tertiary air, makes burning rationally, fully, reaches the good result of energy-saving and environmental protection.

The solution that the utility model provides is that the body of this boiler is a square structure, and up and down, all around is water jacket, the water jacket that the centre has three roads to be uneven in length separates zones of different, and this three roads water jacket communicates with left and right sides water jacket.The front portion is a burner hearth, and the burner hearth top is firing door and main air intake, and the below is the combining structure of drop grate and dead grate; The front lower place is fire door and secondary air register; The middle part is the combustion chamber, has the tertiary air wind adjusting hole by water jacket about the combustion chamber; Adorn one group of water-water-to-water heat exchanger in the water jacket of top, combustion chamber; Be " U " type passage that second combustion chamber and smoke-box are formed after the combustion chamber, passage below one side has shoot door, and the top is a Pipe saddle for chimney.The rear side water jacket is a backwater heating base in the middle of the below, and water jacket is provided with the water distribution dividing plate on the base; Body water jacket top cloth is provided with heating water supply base.

Accompanying drawing is a kind of embodiment body construction schematic diagram of small-sized anti-burning tertiary air heating boiler.

In the present embodiment, small-sized anti-burning tertiary air heating boiler body is a square structure, and one time plate air door 1 is installed on the firing door 2; After the front side water jacket 3 is boiler furnace 4, and the lower furnace portion inwall is done heat-insulation layer 19 with refractory concrete; The burner hearth below is a drop grate 7, and drop grate can stretch out the rocking bar of installing on the axle head by a side and shake; Lead to combustion chamber 9 one sides and install and fix fire grate 8; The front side is a fire door 5, and secondary plate air door 6 is set on it; A tertiary air air register 10 respectively is housed about top, combustion chamber; The bottom has shoot door 11 on a side water jacket; On counter steer flue 15, to top installing Pipe saddle for chimney 16.Backwater base 12 is arranged at rear side, and water distribution dividing plate 13 is equipped with in the appropriate location on the backwater base in the rear side water jacket; Heating water supply base 17 is located at upside water jacket centre position, can adorn bathing coiled water-water-to-water heat exchanger 18 under the water supply base in the water jacket.

Now in conjunction with the accompanying drawings the utility model is further elaborated:

Behind the coal of igniting on the fire grate, adjust first and second air door, fire coal is instead burnt from top to bottom, the flame that burning produces enters the combustion chamber under the stack draught effect, be equipped with an amount of secondary wind, can make flame on three air registers, reach maximum temperature, the also complete after-flame of the cracking fugitive constituent that in second combustion chamber, produces for the leading portion incomplete combustion; The low amounts of dust that flue gas is carried under one's arms sedimentation in subsequently dilatation, deceleration, steering procedure, cleaning flue gases upwards drains into atmosphere by chimney.Along with the carrying out of burning, dust stratification thickening on the fire grate, shake drop grate and ash can be drained into the bottom this moment, regularly goes out clearly.Fuel adds with combustion position as required from firing door.

The boiler water cycle system is that the heating backwater is imported by the backwater base, under the stopping of water distribution dividing plate, flow to bottom, left and right sides water jacket, owing to be subjected to heat effect to continue to rise on the top, the pipeline that is connected by the water supply base at top when water temperature is the highest is exported to heating system.Water-water-to-water heat exchanger inlet can connect running water, and outlet connects bath hot water case or shower.

Install insulation material, foreskin outside the body, have the good surface appearance moulding, in energy savings, protection environment, promote the quality of life of vast urban and rural residents.

The utility model burning bituminous coal, anthracite also can be adjusted method of operating and use honeycomb briquette, coal briquette.

The utility model makes burning fully, fully because the suitable adapted of anti-burning and tertiary air is easy and simple to handle, and the thermal efficiency can reach more than 75%; Smoke medicining dust-removing effect is better, can satisfy the class one zone soot emissions requirement of GB13271-2001 " emission standard of air pollutants for boilers " regulation.

Claims

1, a kind of small-sized anti-burning tertiary air heating boiler, box-structure comprises burner hearth 4, combustion chamber 9, second combustion chamber 14 and flue 15, it is characterized in that:

(1) burner hearth 4 belows are provided with drop grate 7, dead grate 8 communicates with combustion chamber 9;

(2) 9 front portions, combustion chamber are provided with fire door 5;

(3) 9 back upper places, combustion chamber are provided with tertiary air door 10 by the both sides water jacket;

(4) combustion chamber 9 and second combustion chamber 14 are for the top is communicated with, and second combustion chamber 14 is communicated with for the below with flue 15.

2, a kind of small-sized anti-burning tertiary air heating boiler as claimed in claim 1 is characterized in that main air intake 1 is loaded on the firing door 2 of burner hearth top.

3, a kind of small-sized anti-burning tertiary air heating boiler as claimed in claim 1 is characterized in that secondary air register 6 is loaded on the fire door 5 of 9 front portions, combustion chamber.