CN2692572Y

CN2692572Y - Improved horizontal boiler

Info

Publication number: CN2692572Y
Application number: CN 200420008002
Authority: CN
Inventors: 严胡平
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-03-04
Filing date: 2004-03-04
Publication date: 2005-04-13
Anticipated expiration: 2014-03-04

Abstract

Disclosed is an improved horizontal boiler, comprising a boiler body with a chain grate; a water jacket is formed between an inner and an outer boiler cylinder; a burning chamber is provided in the lower part of the inner boiler cylinder; the upper parts of the inner and the outer boiler cylinders of the boiler body are cylindrical, and the mutually parallel cylinder walls of the two lower parts are uprightly arranged; a smoke outlet chamber is provided at the outboard of the front end wall of the boiler body at the upper part of the inner boiler cylinder, and the top surface of the rear part of the inner boiler cylinder folded upward to form a smoke intake chamber saliently to enter in the water jacket; the front wall of the smoke intake chamber is communicated with the smoke outlet chamber by fire pipes which are horizontally and uniformly distributed in the water jacket; a boiler arch is provided in the burning chamber; the open end of the front part of the boiler arch is positioned at the middle of the burning chamber; the closing end of the rear part of the boiler arch is connected with the rear end wall of the boiler body; an air pipe supplied air by a blowing machine is provided in the top wall of the boiler of the open end, and air blowing nozzles blowing air to the burning chamber are provided on the air pipe. The utility model without auxiliary equipment such as dust removing devices implements dustless exhaust, has high heating efficiency, and reduces largely boiler operation cost and invention cost.

Description

Improved horizontal boiler

Technical field

The utility model belongs to the improvement of horizontal boiler structure, particularly improved horizontal boiler.

Background technology

The flue gas flow of existing horizontal boiler all is more than three backhauls, and the fume emission resistance is big, need be used the bigger air-introduced machine of power when work the flue gas in the combustion chamber is outwards taken out, so that make the flue gas recirculation smoothness, is beneficial to the burning of coal.Though can increase the flow velocity of flue gas in the body of heater like this, but a large amount of heat energy, fine dusts in the combustion chamber of furnace body and do not have the black wood charcoal grain of completing combustion also to be extracted into body of heater to enter in the air outward thereupon, not only cause atmosphere pollution, but also reduced the heat energy utilization rate of boiler.For dedusting, need huge deduster be set at boiler tail, and this has increased the resistance of flow of flue gas in the body of heater.The method of servicing units such as air-introduced machine, deduster is installed in this employing additional, not only can not effectively address the above problem, but also has increased operating cost, cost of investment and the maintenance cost of boiler greatly.

Summary of the invention

The purpose of this utility model is to provide a kind of improved horizontal boiler, not only the fume emission resistance is little, and need not to join in addition servicing units such as deduster, air-introduced machine and just can realize smokeless emission, can greatly reduce operating cost, cost of investment and the maintenance cost of boiler, improve the heat energy utilization rate.

The purpose of this utility model is achieved in that a kind of improved horizontal boiler, chain fire-gate body of heater is housed bottom comprising, form water jacket between its inside and outside stove tube, interior stove tube is the combustion chamber in the bottom, the top of the inside and outside stove tube of body of heater all is the semicircle tubular, the bottom barrel of the two all is upright layout and is parallel to each other, the body of heater front bulkhead arranged outside of interior stove tube top out smoke-box, the bending that makes progress of the rear portion end face of interior stove tube forms the smoke-box that advances protrude in the water jacket, the antetheca that advances smoke-box with go out the smoke pipe that is distributed in the water jacket by level between the smoke-box and be connected; Chimney arch is being set in the combustion chamber, the open front end of chimney arch is positioned at the middle part of combustion chamber, the rear closure end of chimney arch and the aft bulkhead of body of heater link together, and the airduct by air blast air-supply is being set in the chimney arch roof of open end, the uniform tuyere of drying in the combustion chamber that is being provided with on the airduct.

During the utility model work, by traveling-grate stoker coal is transported to the combustion chamber internal combustion, the airduct by the air blast air-supply that is provided with in the chimney arch open end roof is blown into sufficient oxygen in the combustion chamber, make coal be able to abundant burning, thereby can greatly reduce molecule contained in the flue gas, reach smokeless, the purpose of low dirt discharging, gas fume after burning climbs over chimney arch and arrives the smoke-box that advances that is positioned at stove tube rear portion, discharge through going out smoke-box by advancing in the smoke-box by smoke pipe, smoke pipe is positioned at water jacket, help water in the water jacket and fully absorb waste heat in the flue gas, improve the heat energy utilization rate.In addition, flue gas full of twists and turns advancing in body of heater that coal burning produces also can make suspended particulates wherein be able to continuous sedimentation, helps to reduce the discharging of contaminant particle.Flue gas flow of the present utility model has only two backhauls, thereby the flow of flue gas resistance is little, thereby does not need to install auxiliary equipment such as deduster and air-introduced machine, reduces the operating cost and the cost of investment of boiler.

Description of drawings

Below in conjunction with accompanying drawing the utility model is described in further detail.

Fig. 1 looks cross-sectional view for master of the present utility model;

Fig. 2 is a side-looking semi-section structural representation of the present utility model.

The specific embodiment

A kind of improved horizontal boiler, as shown in Figure 1 and Figure 2, the body of heater of traveling-grate stoker 1 is housed bottom comprising, form water jacket between its inside and outside stove tube 8,9, interior stove tube is the combustion chamber in 8 bottoms, as shown in Figure 2, the top of the inside and outside stove tube 8,9 of body of heater all is the semicircle tubular, and the bottom barrel of the two all is upright layout and is parallel to each other.As shown in Figure 1, the body of heater front bulkhead arranged outside of interior stove tube 8 tops out smoke-box 4, the bending that makes progress of the rear portion end face of interior stove tube 8 forms to protrude into and advances smoke-box 6 in the water jacket, the antetheca that advances smoke-box 6 with go out the smoke pipe 5 that is distributed in the water jacket by level between the smoke-box 4 and be connected, water in the water jacket can fully absorb from the smoke pipe 5 interior heats that flue gas contained that pass through, and improves the heat energy utilization rate.The rear wall that advances smoke-box 6 links together by the aft bulkhead of lacing wire 7 with body of heater; Chimney arch 11 is being set in the combustion chamber, the open front end of chimney arch 11 is positioned at the middle part of combustion chamber, the aft bulkhead of its rear portion blind end and body of heater links together, airduct 13 by air blast air-supply is being set, the uniform tuyere of drying in the combustion chamber that is being provided with on the airduct 13 in chimney arch 11 roofs of open end; On the outer furnace wall end face of body of heater outlet pipe 14 is being set.Be in the chamber front end wall lateral separation uniform be provided with before arch tube 3, the upper end of preceding arch tube 3 is communicated with water jacket, its lower end is communicated with the horizontal water pipe 10 that is positioned at chamber front end wall bottom.

As shown in Figure 1 and Figure 2, in order more effectively to utilize the heat energy that flue gas contained in the combustion chamber, be below interior stove tube 8 end faces that longitudinal separation is uniform to be provided with cross one another water pipe 12, the upper wall and the lower wall of stove tube 8 in the two ends of water pipe 12 are being communicated with respectively, help to improve the circulation rate of water in the water jacket like this, quicken the heat exchange and the thermal convection current of water in the water jacket, improve the thermal efficiency of boiler.

Claims

1, a kind of improved horizontal boiler, the body of heater of traveling-grate stoker (1) is housed bottom comprising, in it, outer furnace tube (8,9) form water jacket between, interior stove tube (8) is the combustion chamber in the bottom, it is characterized in that: in the body of heater, outer furnace tube (8,9) top all is the semicircle tubular, the bottom barrel of the two all is upright layout and is parallel to each other, the body of heater front bulkhead arranged outside of interior stove tube (8) top out smoke-box (4), the bending that makes progress of the rear portion end face of interior stove tube (8) forms to protrude into and advances smoke-box (6) in the water jacket, the antetheca that advances smoke-box (6) with go out the smoke pipe (5) that is distributed in the water jacket by level between the smoke-box (4) and be connected; Chimney arch (11) is being set in the combustion chamber, the open front end of chimney arch (11) is positioned at the middle part of combustion chamber, the rear closure end of chimney arch (11) and the aft bulkhead of body of heater link together, airduct (13) by air blast air-supply is being set in the chimney arch of open end (11) roof, and airduct (13) is gone up the uniform tuyere of drying in the combustion chamber that is being provided with.

2, improved horizontal boiler according to claim 1 is characterized in that: be the uniform cross one another water pipe (12) that is being provided with of longitudinal separation in interior stove tube (8) end face below, the upper wall and the lower wall of stove tube (8) in the two ends of water pipe (12) are being communicated with respectively.