CN2480695Y

CN2480695Y - Environment protection energy saving boiler

Info

Publication number: CN2480695Y
Application number: CN 01241357
Authority: CN
Inventors: 张成基
Original assignee: Individual
Current assignee: Individual
Priority date: 2001-04-23
Filing date: 2001-04-23
Publication date: 2002-03-06
Anticipated expiration: 2011-04-23

Abstract

Disclosed is an environment-friendly and energy-saving type boiler, which comprises a fire grate and blast chambers arranged in the boiler body is characterized in that the boiler body is equipped with two or more than two independent blast chambers which are equipped with a dividing waterwall between adjacent ones, an air feed nozzle is arranged in a water storage chamber under the fire grate, the water in the water storage chamber can generate steam by pneumatic agitation and the steam can generate gas burning with high-temperature fixed carbon of fire coal. The boiler can burn in the condition of high temperature, Ringelman number can keep at 0 to 0.5 degree when igniting or blowing down and banking the fire midway, the boiler can save 35 to 40 percent of coal than normal boiler and improve 30 percent of heating efficiency, the utility model has a long fire banking time and is convenient in changing coal.

Description

Environment protection type energy saving boiler

The utility model relates to a kind of boiler, especially a kind of environment protection type energy saving boiler.

Coal-burning boiler mainly contains horizontal boiler and vertical boiler two big classes, and the fire grate that is adopted is divided into two kinds of fixed grate and moving grates.Existing boiler is equipped with a combustion chamber, coal-fired burner hearth internal combustion in same combustion chamber.With the fixed grate is example, and no matter existing horizontal boiler adopts is just being burnt still anti-burning mode, all exists fired coal combustion incomplete, phosphorus content height in the cinder, and fire-sealing time is short, and ignition of the boiler or coal or blowing out are midway banked up a fire and the phenomenon that Lin Geman exceeds standard all can be occurred discharging fume.Generally speaking, the air inducing cleaner need be set, could guarantee that boiler normally uses; Existing vertical boiler has the branch of individual layer fire grate and double-layer grate, its combustion system and horizontal boiler combustion system are basic identical, especially double-layer grate vertical boiler, although increased secondary even three, four air distribution devices in the prior art, but the coal of upper grate is not completing combustion in combustion process, banking up a fire in ignition of the boiler or coal or blowing out midway the Lin Geman phenomenon that exceeds standard still to occur discharging fume, and fire-sealing time is short.In order to overcome the above-mentioned shortcoming of existing in prior technology, the ZL99206892.4 utility model patent has proposed " a kind of New-type boiler fire grate ", this fire grate is made up of fire bars and one group of water cooling plant, although this fire grate has not yielding and damages advantage, but, still have above-mentioned technical disadvantages because the fired coal combustion mode does not change.

In addition, at present employed full gas boiler is comparatively stable under the normal combustion state, but it is missing of ignition to have existed igniting before use early, igniting evening dangerous and catch fire before the disadvantage of over-emitting black exhaust, it is insufficient to burn, thermal losses is big.

The utility model has overcome the deficiency of above-mentioned prior art, and its purpose is to provide a kind of environment protection type energy saving boiler.

The technical solution of the utility model is achieved in that

A kind of environment protection type energy saving boiler, what comprise the fire grate, combustion chamber, heat exchanger, air distribution device and the boiler that are arranged in the ordinary pan body of heater adds coal stove door and scarfing cinder fire door, it is characterized in that being provided with in the said boiler body two or more separate combustion chambers, be provided with intermediate bulkheads between per two adjacent independent combustion chambers.Do not go here and there fire between two adjacent combustion chambers mutually, can be respectively or ignite simultaneously and recycle.Above-mentioned next door can adopt the metal plate type hot switching path to make the water-cooled next door, and two combustion chambers are isolated mutually; Also can adopt and build refractory brickwork between the water cooling tube by laying bricks or stones and make the water-cooled next door, two combustion chambers are isolated mutually.Above-mentioned metal plate type hot switching path or water cooling tube are connected with boiler water, and its outer wall surface is provided with refractory material.

Because what the utility model was taked is the upper-burning combustion system, lights a fire, and sends into wind below fire grate one time, after igniting, the upper surface coal seam sends into secondary wind to the combustion chamber, the reverse from top to bottom burning of high-temp combustion layer of the very fast formation in surface, coal seam above the coal seam.Form gas-fired for carbon body when burning of making coal is can be in the combustion chamber inner, be provided with water storage room below the fire grate of this boiler, and in water storage room, be provided with air distribution device one time.Under a wind stirred, the high temperature fixed carbon in formed water vapour of the water in the water storage room and the fire coal produced chemical reaction, and part has formed gas-fired.

The utility model is owing to be to take the upper-burning combustion system; Whole combustion process is in high temperature very hot oven state all the time, owing to formed the combustion system of upper-burning at the very start, the Lin Geman phenomenon that exceeds standard can not occur discharging fume so bank up a fire from igniting or blowing out midway, and smoke evacuation Lin Geman is in about 0～0.5 grade of level always.Because combustion system is different with original combustion system, phosphorus content reduces significantly so this boiler is slagged tap, and heat loss is little, compares effect of coal saving with plain cylindrical furnace and can reach 35～40%, improves the thermal efficiency more than 30%.Boiler provided by the utility model dedusting voluntarily, ash and slag disposal is all very easy, fire-sealing time is long, it is convenient to change coal, two combustion chambers (small-sized) can successively light a fire, recycle, disposable throwing coal can burn about 5～7 hours, had alleviated fireman's labour intensity greatly, was present a kind of comparatively ideal environment-friendly and energy-efficient product.

Fig. 1 is the utility model embodiment one vertical boiler structural representation.

Fig. 2 is the utility model embodiment two horizontal boiler structural representations.

Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.

As shown in Figure 1, present embodiment one is the vertical type of furnace, by be arranged on the fire grate 5 in the boiler body 11, two separate combustion chambers 4, heat exchanger 1, air distribution device and boilers add coal stove door 10 and scarfing cinder fire door 9 is formed.Be provided with water-cooled next door 3 between two combustion chambers 4, above-mentioned next door can adopt two metallic plate welderings to make the hot switching path that is connected with boiler recirculated water, and two combustion chambers 4 are isolated mutually.Fire grate 5 can adopt cast iron and water pipe.One time air feed nozzle 6, secondary air feed nozzle 2 are all taked the air-supply of stove outer covering distribution plenum.Scarfing cinder fire door 9 can be used for removing cinder; Add coal stove door 10 and be used to throw coal and igniting.Be provided with water storage room 7 below the fire grate 5 of this boiler.Under a wind stirred, the high temperature fixed carbon in formed water vapour of the water in the water storage room 7 and the fire coal produced chemical reaction, and part has formed gas-fired.Shoot door 8 is arranged on below the boiler grate 5.

As shown in Figure 2, present embodiment two is the horizontal type of furnace, by be arranged on the fire grate 5 in the boiler body 11, two separate combustion chambers 4, heat exchanger 1, air distribution device and boilers add coal stove door 10 and scarfing cinder fire door 9 is formed.Build refractory brickwork by laying bricks or stones between the employing water cooling tube between two combustion chambers 4 and make water-cooled next door 3, two combustion chambers are isolated mutually.Above-mentioned water cooling tube is connected with boiler water, and its outer wall surface is provided with refractory material.Fire grate 5 can adopt cast iron and water pipe, and it is that distribution plenum, the secondary air feed nozzle 2 of air feed nozzle 6 air distributions takes the furnace wall refractory back to establish secondary wind make-up tank that fire grate 5 is arranged with.Scarfing cinder fire door 9, the setting that adds coal stove door 10, water storage room 7, shoot door 8 and effect are identical with embodiment one.

Claims

1, a kind of environment protection type energy saving boiler, comprise and add coal stove door [10] and scarfing cinder fire door [9] on fire grate [5], combustion chamber [4], heat exchanger [1], air distribution device and the boiler that is arranged in the ordinary pan body of heater [11], it is characterized in that: be provided with two or more separate combustion chambers [4] in the boiler body [11], be provided with intermediate bulkheads [3] between per two adjacent independent combustion chambers [4].

2, boiler according to claim 1 is characterized in that above-mentioned intermediate bulkheads [3] adopts the metal plate type hot switching path to make the water-cooled next door.

3, boiler according to claim 1 is characterized in that building refractory brickwork by laying bricks or stones between above-mentioned intermediate bulkheads [3] the employing water cooling tube makes the water-cooled next door.

4,, it is characterized in that being provided with water storage room [7] below the said fire grate [5], and in water storage room [7], be provided with an air feed nozzle [6] according to claim 1,2 or 3 described boilers.