CN201363890Y

CN201363890Y - Horizontal boiler

Info

Publication number: CN201363890Y
Application number: CNU200920145509XU
Authority: CN
Inventors: 王全红
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-03-10
Filing date: 2009-03-10
Publication date: 2009-12-16
Anticipated expiration: 2019-03-10

Abstract

The utility model relates to a horizontal boiler comprising a furnace body with a heat preservation layer, a boiler barrel arranged at the upper part inside the furnace body, and a fire grate arranged at the lower part inside the furnace body. The space between the bottom of the boiler barrel and the fire grate forms a combustion chamber. A fire tube group undergoing heat exchange with the water in the boiler barrel is arranged in the boiler barrel. The fire tube group is communicated with the atmosphere outside the furnace body. The boiler barrel is directly arranged above the fire grate. The vertical height from the boiler barrel to the fire grate is 600mm-1500mm. The horizontal boiler eliminates a furnace arch in the prior art, thereby not only shortening the furnace warming-up time but also causing the boiler barrel to be directly heated, reducing the waste of the thermal energy and improving the utilization rate of the energy. The bottom of the boiler barrel can gather wind and fire and guide the flow of the smoke generated from the combustion. The horizontal boiler overcomes such technical problems as long furnace warming-up time and heat energy waste which exist in the conventional boilers, and is particularly suitable for providing heat.

Description

A kind of horizontal boiler

Technical field

The utility model relates to a kind of boiler, specifically a kind of horizontal boiler.

Background technology

Common boiler generally is provided with chimney arch at present, as notification number is that one piece of Chinese patent literature of CN2692501Y discloses a kind of horizontal extreme misery pipe less boiler, comprise the body of heater that fire grate is housed, in the body of heater of fire grate top is the combustion chamber, the top of body of heater is provided with drum, form the smoke-box that advances of sealing between the front bulkhead of the front bulkhead of this boiler furnace, the face arch of combustion chamber and drum, the aft bulkhead of drum is being provided with smoke-box outward, uniform the fire tube that is connected with the turnover smoke-box in the drum; Be in the face arch of combustion chamber the lateral separation uniform be provided with before arch tube, preceding arch tube forms flue each other, before arch tube the lower end respectively with the horizontal cross current that is positioned at combustion chamber face arch bottom, its upper end is connected with the bottom barrel of boiler respectively, the uniform respectively water screen tube that is longitudinally-spaced that connecting on the two side of drum, its lower end respectively with the vertical cross current that is positioned at lower end, body of heater two side.The utility model fume emission resistance is little, need not servicing units such as deduster, air-introduced machine, can greatly reduce operating cost, cost of investment and the maintenance cost of boiler, improves the heat energy utilization rate.

Thereby the chimney arch of this boiler setting be used for the poly-fire of wind gathering, prevent that fire from directly burning drum and can carry out water conservancy diversion to the high-temperature flue gas that burning produces and make it enter water in the fire tube heating drum in the drum.According to prior art, the distance between chimney arch and the fire grate is generally 600mm-900mm, will cause fuel combustion insufficient less than 600mm, will weaken the effect of the poly-fire of chimney arch wind gathering greatly greater than 900mm.Because chimney arch directly is heated, and has absorbed a large amount of heat energy, has not only increased the time of warm stove, make that also the water in the drum only depends on the flue gas heating, can not make full use of the heat that burning produces, caused the waste of heat energy.In addition, to be the flue gas that contains a large amount of heat energy that produces of the disclosed boiler combustion of the patent of CN2692501Y enter in the smoke-box by the smoke outlet flue between the preceding arch tube notification number, enter out the smoke-box discharge by advancing smoke-box by the fire tube in the drum again, the flow process that is flue gas has only two backhauls, and the heat exchange between the water in flue gas and the drum is apart from weak point, so heat exchange area is little, cause heat exchange insufficient, temperature when flue gas is discharged is higher, still has higher heat energy, has also caused the waste of heat energy.

The utility model content

For this reason, technical problem to be solved in the utility model is that a large amount of heats that overcome existing boiler combustion generation are absorbed by chimney arch, causes the shortcoming of energy waste, and a kind of boiler of not establishing chimney arch is provided, and the heat exchange area of increase drum internal fire pipe and water, therefore can improve rate of energy.

For solving the problems of the technologies described above, horizontal boiler described in the utility model, comprise the body of heater that is provided with heat-insulation layer and be located at the body of heater internal upper part drum, be located at the fire grate of bottom in the body of heater, space between the bottom of described drum and the described fire grate forms the combustion chamber, be provided with in the described drum with drum in the water fire tube group of carrying out heat exchange, described fire tube group communicates with described combustion chamber and described body of heater atmosphere outward, and described drum directly is arranged at the top of fire grate.

Vertical height between described drum and described fire grate is 600mm-1500mm.

Vertical height between described drum and described fire grate is 700mm.

Be provided with the fire tubes that many groups are parallel to each other in the described drum, two groups of adjacent described fire tubes, wherein the gas outlet of one group of fire tube is connected by dedusting chamber with air inlet of another group fire tube, and last group fire tube communicates with atmosphere outside the body of heater

Described fire tube group is arranged above and below.

Be provided with the three groups of fire tubes in upper, middle and lower in the described drum.

Be connected by circulation pipe between described drum and the water jacket that is arranged on the body of heater lower inside.

The top of described body of heater is provided with the temperature signal chamber, and the water pump that is connected with return pipe can be controlled and to the air blast of described combustion chamber air feed in described temperature signal chamber, thereby controls the speed and the air feed wind speed of water circulation respectively.

Described fire grate has a plurality of air supplying chamber to described combustion chamber air feed, and the wind supply quantity of each described air supplying chamber is adjustable.

Technique scheme of the present utility model has the following advantages compared to existing technology, and (1) has removed chimney arch of the prior art, has not only shortened the warm stove time, and drum directly is heated, and has reduced the waste of heat energy, has improved rate of energy.(2) distance of boiler drum bottom and fire grate is 600mm-1500mm, and the bottom wind-collecting of drum, the poly-flue gas that burning is produced of fighting carry out water conservancy diversion, and flue gas flows to fire tube along boiler drum bottom, carries out heat exchange with water in the drum.(3) increased the group number of fire tube, therefore increase with drum in the heat exchange area of water, make heat exchange more abundant, further improved the utilization rate of heat energy, more energy-conservation.(4) the fire tube group is arranged above and below in drum, and floor space is little, but conserve space.

Description of drawings

For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below

Fig. 1 is the utility model first embodiment front view;

Fig. 2 is the utility model first embodiment side view.

Reference numeral is expressed as among the figure: 1-body of heater, 2-drum, 3-fire grate, 4-fire tube, 5-combustion chamber, the 6-deashing chamber, 7-observation door, the last fire tube group of 8-, fire tube group among the 9-, fire tube group under the 10-, 11-advances smoke-box, 12-air inlet, 13-gas outlet, 14-first removes smoke-box, and 15-second removes smoke-box, 16-outlet flue, 17-heat-insulation layer, 18-refractory cement layer, 19-feed pipe, 20-return pipe, 21-water jacket, the 22-circulation pipe, 23-blow vent, 24-coal-hatch, 25-temperature signal chamber.

The specific embodiment

Fig. 1, Figure 2 shows that first embodiment of the present utility model, comprise body of heater 1 and be located at the drum 2 of body of heater 1 internal upper part that be located at the fire grate 3 of bottom in the body of heater 1, the space between the bottom of described drum and the described fire grate forms the combustion chamber.Described body of heater 1 is by internal layer and outer the composition, and described internal layer is a flame retardant coating 18, and skin is a heat-insulation layer 17, and heat-insulation layer 17 is made by heat-insulating material, prevents that the heat of coal combustion generation is dispersed in the ambient air by body of heater 1.The bottom of body of heater 1 is provided with fire grate 3, and fire grate 3 belows are provided with deashing chamber 6 and remove cinder notch.Coal burns on fire grate 3, and the cinder of generation is removed by removing cinder notch, and the coal ash of generation leaks down from the space of fire grate 3, removes by the cleaning door that is located at body of heater 1 one sides.The below of described fire grate 3 also is provided with three air supplying chamber, is used for to the boiler air feed.Separate by dividing plate between two adjacent air supplying chamber, air blast passes through the air outlet of air supplying chamber to combustion chamber 5 air feeds, and described air outlet can be regulated the size of air feed air quantity.From reducing successively to air quantity away from the air outlet that advances smoke-box one side near the described air outlet that advances smoke-box 11 1 sides, make the air quantity maximum of gathering near a side of advancing smoke-box 11 in the combustion chamber 5, fire is the most prosperous, guarantees that therefore 5 interior temperature the highest flue gas in combustion chamber is near advancing smoke-box 11.Wind direction is shown in the arrow of Fig. 1.This boiler is delivered to coal on the fire grate 3 with fire grate 3 corresponding coal-hatches 24 from being located on the body of heater 1 by reciprocal coal conveyor.

The top of described fire grate 3 directly is provided with the drum 2 of dress water, does not promptly have any shelter between drum 2 and the fire grate 3.Form combustion chamber 5 between described fire grate 3 and described drum 2 bottoms, an end of combustion chamber 5 is provided with into smoke-box 11.Traditional boiler is provided with the chimney arch that cement is done between drum 2 and fire grate 3, have the poly-fire action of wind gathering, and the fire tube 4 that the flue gas that produces of guiding burning enters in the drum 2 carries out heat exchange with water in the drum 2, can prevent directly barbecue drum 2 of fire simultaneously.The boiler that is provided with chimney arch need carry out long temperature stove, and owing to the barbecue that directly is subjected to the fire in the combustion chamber 5 has absorbed a large amount of heat energy, has caused the waste of heat energy.According to prior art, chimney arch is positioned at 600mm-1500mm place, fire grate 3 top, is lower than 600mm or is higher than the poly-fire action of its wind gathering of 1500mm to weaken greatly.Boiler described in the utility model has removed chimney arch, prevents that heat from being caused waste by the chimney arch absorption, and has shortened the warm stove time.Bottom with drum 2 moves to original chimney arch place simultaneously, present embodiment is the boiler of two tons of tonnages, distance between the bottom of drum 2 and the fire grate 3 is about 700mm, the bottom of drum 2 can be played the effect of wind gathering, poly-fire and a large amount of high-temperature flue gas that produce that burn are carried out water conservancy diversion, and the guiding flow of flue gas is to the air inlet 12 of fire tube 4.In addition, the practical experience according to a large amount of does not have chimney arch, and the bottom of the direct barbecue of fire drum 2 can not influence the service life of boiler.

Be evenly distributed with three groups of horizontally disposed fire tubes 4 in the described drum 2, in the present embodiment, the fire tube group is arranged above and below, and is respectively three groups of upper, middle and lower, and every group is 22.Fire tube 4 one ends of following fire tube group 10 are provided with the air inlet 12 that smoke-box 11 is communicated with that advances with combustion chamber 5, and the other end is provided with gas outlet 13.At a following end of the gas outlet 13 of fire tube group 10, be provided with first dedusting chamber that is used for ash disposal between the sidewall of following fire tube group 10 and body of heater 1, the air inlet 12 of the gas outlet 13 of first dedusting chamber and following fire tube group 10 and adjacent middle fire tube group 9 is connected.In the gas outlet 13 of the other end of fire tube group 9 be connected with the air inlet 12 of last fire tube group 8 with second dedusting chamber between body of heater 1 sidewall by fire tube group 9 gas outlets 13 in being located at, described gas outlet 13 of going up fire tube group 8 communicates with atmosphere outside the body of heater 1 by the mouth 16 of performing that is located on the body of heater 1.Coal combustion produces the flue gas that has a large amount of dusts, advance smoke-box 11 by what air blast entered combustion chamber 5 under the guide functions of drum 2 bottoms, and enter down fire tube group 10 and carry out heat exchange with water in the drum from advancing smoke-box 11, when flow of flue gas to the first is removed smoke-box 14, flue gas turns to and enters adjacent middle fire tube group 9, simultaneously dust is trapped in first except that in the smoke-box 14 and on the wall.Flue gas by middle fire tube group 9 enters second except that smoke-box 15, carries out smoke abatement once more.Flue gas behind the smoke abatement enters fire tube group 8 once more, and the gas outlet 13 by last fire tube group 8 is by being rejected to behind the deduster in the outer atmosphere of body of heater 1.Described first removes smoke-box 14 and second removes smoke-box 15 and is provided with the dust clean-up port that is interlinked to the outside with body of heater 1, and this dust clean-up port is closed during use, prevents that flue gas from overflowing.Soot build-up in dedusting chamber can be opened the flue dust clean-up port flue dust is removed more for a long time.

The top of described body of heater 1 is provided with the feed pipe 19 that is communicated with drum 2, and drum 2 is supplied water.The inboard of described body of heater 1 bottom is provided with water jacket 21, and described water jacket 21 is connected with drum 2 by circulation pipe 22.Water in the drum 2 after the high-temperature flue gas heating, flows to water jacket 21 and heats once more in being subjected to fire tube, flows into water pipe or the radiator that is connected with water jacket 21 subsequently, thereby realizes the function of boiler heating.Be provided with a wall pipe every 50mm on the described side wall of furnace, described wall pipe is connected with described drum 2 and return pipe 3.The water that returns from radiator flows into return pipe 20, flows back to drum 2 by the wall pipe.

The top of described body of heater 1 also is provided with the blow vent 23 that communicates with the outer atmosphere of drum 2 and body of heater 1, keeps the air pressure in the drum 2, prevents to heat to produce excessive air pressure and cause drum 2 blasts.The top of body of heater 1 also is provided with temperature signal chamber 25 in addition, can show the temperature of water in the drum 2.The water pump that is connected with return pipe 20 can be controlled and to the air blast of described combustion chamber 5 air feeds in described temperature signal chamber 25, thereby controls the speed and the air feed wind speed of water circulation respectively.Position corresponding with described combustion chamber 5 on the sidewall of body of heater 1 also is provided with observation door, and in the present embodiment, observation door 7 is made by material transparent, and the people of being convenient to burning boiler observes the fire of combustion chamber 5, can add coal in time.Can open observation door 7 when boiler goes wrong keeps in repair it.

Second embodiment of the present utility model is the boiler of 20 tons of tonnages, and the vertical range between the bottom of described drum and the described fire grate is 1500mm.Fire tube group in the drum is set up in parallel, and respectively is first, second, third fire tube group, and fire tube one end of the first fire tube group is provided with the air inlet that smoke-box is communicated with that advances with the combustion chamber, and the other end is provided with the gas outlet.End in the gas outlet of the first fire tube group is provided with first dedusting chamber that is used for ash disposal between the first fire tube group and the side wall of furnace, the air inlet of the gas outlet of first dedusting chamber and following fire tube group and the second adjacent fire tube group is connected.The gas outlet of the other end of the second fire tube group is connected with the air inlet of the 3rd pipe group with second dedusting chamber between the sidewall of the furnace body by being located at the second fire tube group gas outlet, and the gas outlet of described the 3rd fire tube group communicates by the outer atmosphere of outlet flue and body of heater that is located on the body of heater.Other are identical with first embodiment.In other embodiment, tonnage is that the bottom and the distance between the described fire grate of described drum of 1 ton boiler is 600mm.

Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the utility model creation.

Claims

1. horizontal boiler, comprise the body of heater that is provided with heat-insulation layer and be located at the body of heater internal upper part drum, be located at the fire grate of bottom in the body of heater, space between the bottom of described drum and the described fire grate forms the combustion chamber, be provided with in the described drum with drum in the water fire tube group of carrying out heat exchange, described fire tube group communicates with described combustion chamber and described body of heater atmosphere outward, and it is characterized in that: described drum directly is arranged at the top of fire grate.

2. horizontal boiler according to claim 1 is characterized in that: the vertical height between described drum and described fire grate is 600mm-1500mm.

3. horizontal boiler according to claim 2 is characterized in that: the vertical height between described drum and described fire grate is 700mm.

4. horizontal boiler according to claim 2, it is characterized in that: be provided with the fire tube that many groups are parallel to each other in the described drum, two groups of adjacent described fire tubes, wherein the gas outlet of one group of fire tube is connected by dedusting chamber with air inlet of another group fire tube, and last group fire tube communicates with body of heater atmosphere outward.

5. horizontal boiler according to claim 4 is characterized in that: described fire tube group is arranged above and below.

6. horizontal boiler according to claim 5 is characterized in that: be provided with the three groups of fire tubes in upper, middle and lower in the described drum.

7. according to each described horizontal boiler among the claim 1-6, it is characterized in that: be connected by circulation pipe between described drum and the water jacket that is arranged on the body of heater lower inside, described drum also is connected with return pipe by the wall pipe that is located on the sidewall of the furnace body.

8. according to each described horizontal boiler among the claim 1-6, it is characterized in that: the top of described body of heater is provided with the temperature signal chamber, the water pump that is connected with return pipe can be controlled and to the air blast of described combustion chamber air feed in described temperature signal chamber, thereby controls the speed and the air feed wind speed of water circulation respectively.

9. according to each described horizontal boiler among the claim 1-6, it is characterized in that: described fire grate has a plurality of air supplying chamber to described combustion chamber air feed, and the wind supply quantity of each described air supplying chamber is adjustable.