CN2727629Y

CN2727629Y - Gas boiler

Info

Publication number: CN2727629Y
Application number: CN 200420011482
Authority: CN
Inventors: 李富聪
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-01-14
Filing date: 2004-01-14
Publication date: 2005-09-21
Anticipated expiration: 2014-01-14

Abstract

The utility model relates to a gas boiler, mainly comprising a base, a coal feeding opening, a secondary air outlet and a once air outlet I. The utility model is characterized in that: a boiler wall is provided among the gasification chamber, the burning chamber and the heat transfer chamber in the gas boiler, the lower part is an air cavity for communicating each other, a gas port is arranged on the boiler wall between the gasification chamber and the burning chamber, the once air outlet II is arranged on the lower part of the burning chamber, a fire grate whose upper end is connected with the boiler wall on one side of the gasification chamber, the lower end is connected with the base, is arranged on the lower part of the air cavity, and a coal push plate is arranged on the fire grate. The inner top and the lower part of the heat transfer chamber are respectively provided with horizontal barrels, and the lower side of the upper barrel and the upper side of the lower barrel are respectively provided with open boiler walls staggered each other, implementing the simultaneous high temperature complete burn of the gas and the unburned coal ball in the burning chamber. The utility model has the characteristics of no corrosiveness, the residual carbon quantity in the ash is smaller than 10 percents, thecoal can be saved larger than 15 percents, and heat efficiency is larger than 78 percents. The index of the dust removing quantity, the SO2 removing quantity and the flue gas ringelman blackness etc. are all better than the prescription of first kind zone in the GB-13271-2001, << discharge standard of contamination of boiler >>.

Description

Gas boiler

Technical field

The utility model relates to a kind of gas boiler, and relating in particular to a kind of is the gas boiler of fuel with the coal that looses.

Background technology

Coal is the gas boiler of fuel to loose, can only burning brown coal, when ventilation ignition initial stage temperature is low, the main coal gas that produces based on carbon monoxide, pass in the heat exchange boiler through burner high temperature burning after heat flue gas, the heating of the water in it is produced hot water or/and steam.After the temperature that burns away in the gasification furnace raise, the steam with boiler produces fed in the stove through gasification furnace bottom and upper lateral part, to reduce furnace temperature etc.But, after the acid gas of generation becomes acid, in 0.5-1, can cause heavy corrosion, the normal operation that influence is produced to stove.Now, some place is fuel with the moulded coal, but the cost height.

The utility model content

The purpose of this utility model is to overcome the deficiency that prior art exists, and a kind of gas boiler is provided, and prevents the corrosion of gasification furnace (chamber), alleviates simultaneously and prevents pollution to environment.

The purpose of this utility model is to be achieved by following technical solution:

A kind of gas boiler mainly comprises base, coal filling hole, and overfiren air port and primary air nozzle I is characterized in that:

Be equipped with furnace wall between the vaporizer that is provided with in this gas boiler, combustion chamber and the Heat Room, its underpart is the air cavity that communicates with each other; Furnace wall upside between vaporizer and combustion chamber is provided with gas port; The bottom, combustion chamber is provided with primary air nozzle II;

Below described air cavity, be provided with inclined grate, its upper end links to each other with vaporizer one wing furnace wall, and the lower end links to each other with base; On fire grate, be provided with the coal-pushing plate that links to each other with body of heater outer liquid press.

Above-mentioned gas boiler in its Heat Room inner top and bottom, is respectively equipped with horizontal drum.

The utility model compared with prior art has following advantage:

(1) coal in the vaporizer cooperates the down-firing burning at a wind, when the initial stage temperature is low, produces the coal gas based on carbon monoxide, enters the combustion chamber through gas port, high-temp combustion under the effect of secondary wind; Volatile matter discharges the later stage in the vaporizer coal, along with temperature raises, with the unburnt coal cinder (nuclear) that has discharged volatile matter on the fire grate of coal-pushing plate with the vaporizer bottom, be pushed on the fire grate of bottom, combustion chamber, become flexible coking coal (can add fine coal), its interior volatile matter is fully discharged, reduced the vaporizer temperature simultaneously, and, prevent that acid gas from producing without coolings such as steam; High-temp combustion under a wind effect, thus realized coal gas and unburnt charcoal in the combustion chamber synchronous high-temp combustion.The acid that no acid gas produces prolongs its service life to the corrosion of vaporizer; Carbon residue in the ash＜10%, economize on coal＞15%, adding a dant after 3-4 hour, operating cost is low.

(2) the hot flue gas of Chan Shenging directly enters the Heat Room heat exchange.Because Heat Room top, bottom are respectively equipped with horizontal drum, the thermal efficiency reaches more than 78%.

(3) strong to fuel tolerance, mud coal has bituminous coal, and anthracite, brown coal all can be used as fuel.

(4) environmental index all is better than the regulation in 1 class district in GB13271-2001, " the boiler pollutant atmospheric emission standard ".Test through provincial environmental monitoring central station:

Dust-exhausting quantity (mg/Nm ³) 71.8～＜80

SO ²Discharge capacity (mg/Nm ³) 260～＜900

Flue gas lingemann blackness＜1 grade

Description of drawings

Figure be the utility model structural representation wherein,

1-coal filling hole 2-vaporizer 3-gas port 4-overfiren air port

5-combustion chamber 6-delivery port 7-drum 8-Heat Room

9-exhanst gas outlet 10-water inlet 11-base 12-basis

13-primary air nozzle II 14-primary air nozzle I 15-fire grate 16-coal-pushing plate

The specific embodiment

Now in conjunction with the accompanying drawings and embodiments, the utility model is further specified as follows:

Embodiment:

From accompanying drawing as seen, the utility model is on the basis 12 base 11, is provided with coal filling hole 1 at vaporizer 2 upsides, and the bottom is provided with primary air nozzle I14, and 5 upsides are provided with overfiren air port 4 in the combustion chamber.Between the vaporizer 2 that is provided with in body of heater, combustion chamber 5 and the Heat Room 8, be equipped with furnace wall, its underpart is the air cavity that communicates with each other; Air cavity bottom between vaporizer 2 and combustion chamber 5 is provided with inclined grate 15, and its upper end is connected with vaporizer 2 one wing furnace walls, and the lower end is connected with base 11; On fire grate 15, be provided with the coal-pushing plate 16 that links to each other with the hydraulic press of body of heater outside.In Heat Room 8 tops and bottom, be respectively equipped with horizontal drum 7, can improve its heat exchange efficiency.

As seen from the figure, coal is added on the vaporizer 2 bottom fire grates 15, leads to wind to its vaporizer 2 through primary air nozzle I14 from coal filling hole 1, the ignition initial stage, production enters in the combustion chamber 5 through gas port 3 based on the coal gas of carbon monoxide, with the secondary wind mixing high-temp combustion from overfiren air port 4; The coal volatile matter of later stage vaporizer 2 discharges latter stage, temperature is up to more than 1000 ℃, with coal-pushing plate 16 with the unburnt coal cinder (charcoal) on the fire grate 15 of vaporizer 2 bottoms, shift onto on the fire grate 15 of 5 bottoms, combustion chamber, a wind effect with from primary air nozzle II13 burns away to burnouting under the high temperature.Thereby 5 burnings of coal gas and the synchronous high temperature of unburnt charcoal have been realized in the combustion chamber.Add coal (3-4 hour add a dant) from coal filling hole 1 simultaneously, and continue step combustion process down.Ash and slag fall in the ashpit of its underpart.The hot flue gas that produces through gasification and burning, in air cavity directly enters Heat Room 8, with in the convection bank from the water heat exchange of water inlet 10, the hot water of production is delivered to the user by delivery port 6.Flue gas after the heat exchange discharges out of the furnace through Heat Room 8 upside exhanst gas outlets 9.

Claims

1, a kind of gas boiler mainly comprises base (11), coal filling hole (1), and overfiren air port (3) and primary air nozzle I (14) is characterized in that:

Be equipped with furnace wall between the vaporizer (2) that is provided with in A, this gas boiler, combustion chamber (5) and the Heat Room (8), its underpart is the air cavity that communicates with each other; Furnace wall upside between vaporizer (2) and combustion chamber (5) is provided with gas port (3); The bottom, combustion chamber is provided with primary air nozzle II (13);

Below B, the air cavity between described vaporizer (2) and combustion chamber (5), be provided with inclined grate (5), its upper end links to each other with vaporizer one wing furnace wall, and the lower end links to each other with base (11), is provided with coal-pushing plate (16) on fire grate (15).

2, gas boiler according to claim 1 is characterized in that: in Heat Room (8) top and bottom, be respectively equipped with horizontal drum (7).