CN201218595Y - CLSG type coal gasification combustion environment protection energy-saving ordinary pressure water boiler - Google Patents

Abstract

The utility model discloses a CLSG type gas-fired environment-protection and energy-saving atmospheric pressure hot water boiler which is composed of an outer shell (1), an upper boiler door (4), a lower boiler door (4'), a soot door (5), a hot water delivery pipe (6), a circulation return pipe (7), a water expansion pipe (8) and a steam discharge pipe (9), and the internal lower part of the outer shell (1) is provided with a first firebox (12) and a second firebox (13). The atmospheric pressure hot water boiler is characterized in that a longitudinal heating fire wall (16), a front fire return transverse heating fire wall (17) and a water wall (19) are arranged inside the outer shell (1) to enable the smoke and fire blazed in the first firebox and the second firebox to pass through a front fire return radiating chamber (18), a flue gas lower return radiating chamber (20), a smoke passage (21) and a flue gas return radiating chamber (22) in sequence, so the heating area is enlarged and the heating efficiency is greatly enhanced, at the same time, the flue gas has dust removal three times by dint of self weight during the rising process through a fire box and the down returning process through the water wall, so the dust removal effect is good and the pollution of the flue gas to the environment is reduced.

Description

CLSG type coal gasification combustion environmental-friendly energy-saving normal-pressure hot-water boiler

Technical field

The utility model relates to a kind of improvement of normal-pressure hot-water boiler, specifically a kind of sharp draft of passing through, make raw coal gasification, full after-flame, multistage cleaning type CLSG type coal gasification combustion environmental-friendly energy-saving normal-pressure hot-water boiler, mainly be used in below 95 ℃ in the hot water engineerings such as heating power oven dry, heating, bathing.

Background technology

Normal-pressure hot-water boiler is owing to having security preferably and economy, so promote the use of for many years.No matter normal-pressure hot-water boiler is vertical round boiler, or square boiler, its structure is generally all by shell body, base, cleanout door, upper furnace door, lower furnace door, shoot door, the hot water delivery pipe, loop back water pipe, water pipe expands, gland steam exhauster constitutes, on, lower furnace door is located at the antetheca bottom of shell body, shoot door is located at the antetheca middle part of shell body, the hot water delivery pipe is located at the top of shell body rear wall, loop back water pipe and be located at the bottom of shell body rear wall, gland steam exhauster and bloated water pipe all are located at the top of shell body, the water pipe that expands during installation is connected with bloated water tank, the external circulating pump of hot water delivery pipe, in shell body, establish inner bag, the bottom is provided with first combustion chamber and second combustion chamber in shell body, is fire grate in the bottom of second combustion chamber, is the lime-ash case in the bottom of fire grate.Though these normal-pressure hot-water boilers extensive use, but still have the following disadvantages in application: heating surface area is less, the thermal efficiency is lower, energy consumption is higher, the boiler flue gas outlet temperature is more than 300 ℃, and boiler thermal output less than 70% does not meet the policy requirements of national energy-saving and emission-reduction.In order to improve the thermal efficiency, the way that passing through of having set up water jacket, increase increase heating surface areas such as heating pipe's bundle and water wall improves the utilization rate of boiler heat energy, but because of the flue gas trend is not returned, the pyrotechnics flow process is short, so the thermal efficiency still can not increase substantially, and flue gas still has heavier pollution, wastes energy.

Summary of the invention

It is a kind of by sharp draft, lengthening pyrotechnics flow process, the method that increases heating surface area, set up 3-stage dust-removal that the purpose of this utility model is to provide, so that the raw coal gasification, and combustion, improve the CLSG type coal gasification combustion environmental-friendly energy-saving normal-pressure hot-water boiler of the thermal efficiency, energy savings, reduction environmental pollution.

For reaching above purpose, the technical scheme that the utility model adopted is: this CLSG type coal gasification combustion environmental-friendly energy-saving normal-pressure hot-water boiler, by shell body, base, cleanout door, upper furnace door, lower furnace door, shoot door, the hot water delivery pipe, loop back water pipe, water pipe expands, gland steam exhauster constitutes, on, lower furnace door is located at the antetheca bottom of shell body, shoot door is located at the antetheca middle part of shell body, the hot water delivery pipe is located at the top of shell body rear wall, loop back water pipe and be located at the bottom of shell body rear wall, gland steam exhauster and bloated water pipe all are located at the top of shell body, the water pipe that expands during installation is connected with bloated water tank, to carry out moisturizing, the external circulating pump of hot water delivery pipe, promote the circulation of hot water by circulating pump, in shell body, be provided with by about the horizontal inner bag of heating pipe Shu Zucheng, the bottom is provided with first combustion chamber and second combustion chamber in shell body, in the bottom of second combustion chamber is fire grate, in the bottom of fire grate is the lime-ash case, shell body is the cuboid housing, upper furnace door is fixed on by turning cylinder on the frame of oral area of first combustion chamber, lower furnace door is fixed on by corresponding rotating shaft on the frame of oral area of second combustion chamber, it is characterized in that establishing vertical heating fire division wall at the rear side of first combustion chamber and second combustion chamber, go forward to return laterally heating fire division wall of fire in the upper end connection of vertically heating fire division wall, before return and return fiery heat dissipation chamber before fire laterally between heating fire division wall and first combustion chamber is, establish waterwall at the rear side that vertically heats fire division wall, between waterwall and vertical heating fire division wall, return heat dissipation chamber under the flue gas, the lower edge of waterwall is inserted to the furnace internal-lining bottom, be exhaust gases passes between the bottom of waterwall and the burner hearth diapire, deashing carries out 3-stage dust-removal by deadweight in crossing exhaust gases passes, between waterwall and furnace internal-lining rear wall, return out heat dissipation chamber for flue gas, connect flue gas in the upper end that flue gas returns out heat dissipation chamber and go out pipe, and go out pipe by flue gas and connect successively and go up desulfurizing dust-collector and air-introduced machine, under the effect of air-introduced machine, pyrotechnic gas is from first combustion chamber, before flowing through successively, second combustion chamber returns fiery heat dissipation chamber, return heat dissipation chamber under the flue gas, flue gas returns out heat dissipation chamber, the flow process of flue gas has extended, make raw coal reach vaporization combustion, thereby improved the utilization ratio of coal, smoke content is reduced, reduced environmental pollution, under preceding returning fiery heat dissipation chamber and flue gas, return be equipped with in the heat dissipation chamber about horizontal heating pipe's bundle, laterally the heating pipe restraints about being provided with in flue gas returns out heat dissipation chamber, tiltedly horizontal heating pipe's bundle before and after also being provided with; Described vertical heating fire division wall and before return fire laterally the heating fire division wall by the refractory material body of wall and about laterally the heating pipe restraint formation, horizontal heating pipe Shu Chengyi row shape is embedded in the refractory material body of wall about it, in waterwall, fill the water that is connected with the tiltedly horizontal heating pipe's bundle in front and back, horizontal heating pipe restrainted and waterwall about pyrotechnics was all walked around successively, thereby had increased the heating surface (area) (HS to water; Described waterwall is made by the vertical steel plate welding of bilayer, and the base is along sealing the upper edge opening.

The beneficial effects of the utility model are: compare with the normal-pressure hot-water boiler of present use, because by vertically heating fire division wall, before return fire laterally heating fire division wall and waterwall, under the graviational interaction of air-introduced machine, make before the pyrotechnics of first combustion chamber and the second combustion chamber internal combustion has passed through again successively and return fiery heat dissipation chamber, return heat dissipation chamber under the flue gas, flue gas returns out heat dissipation chamber, heating surface (area) (HS is increased, so improved the efficiency of heating surface greatly, simultaneously, flue gas is returning in the process through smoke box uphill process and the following of waterwall, because of flue gas has carried out third dedusting by deadweight, make dust removing effects better, so also reduced the pollution of flue gas to environment.

Description of drawings

Fig. 1 is the utility model structure front-view schematic diagram.

Fig. 2 is the utility model structure schematic rear view.

Fig. 3 is that the utility model is along Figure 1A-A cross-sectional schematic.

The specific embodiment

Make the utility model with reference to accompanying drawing 1,2,3.This CLSG type coal gasification combustion environmental-friendly energy-saving normal-pressure hot-water boiler, by shell body 1, base 2, cleanout door 3, upper furnace door 4, lower furnace door 4 ', shoot door 5, the hot water delivery pipe 6, loop back water pipe 7, water pipe 8 expands, gland steam exhauster 9 constitutes, on, lower furnace door 4,4 ' be located at the antetheca bottom of shell body 1, shoot door 5 is located at the antetheca middle part of shell body 1, hot water delivery pipe 6 is located at the top of shell body 1 rear wall, loop back water pipe 7 and be located at the bottom of shell body 1 rear wall, gland steam exhauster 9 and bloated water pipe 8 all are located at the top of shell body 1, the water pipe 8 that expands during installation is connected with bloated water tank, hot water delivery pipe's 6 external circulating pumps, in shell body 1, be provided with by about laterally the heating pipe restraint 10 inner bags of forming, the bottom is provided with first combustion chamber 12 and second combustion chamber 13 in shell body 1, in the bottom of second combustion chamber 13 is fire grate 14, in the bottom of fire grate 14 is lime-ash case 15, shell body 1 is the cuboid housing, upper furnace door 4 is fixed on by turning cylinder on the frame of oral area of first combustion chamber 12, on the frame of the oral area of lower furnace door 4 ' be fixed on second combustion chamber 13 by corresponding rotating shaft, it is characterized in that establishing vertical heating fire division wall 16 at the rear side of first combustion chamber 12 and second combustion chamber 13, go forward to return laterally heating fire division wall 17 of fire in the upper end connection of vertically heating fire division wall 16, before return and return fiery heat dissipation chamber 18 before fire laterally between heating fire division wall 17 and first combustion chamber 12 is, establish waterwall 19 at the rear side that vertically heats fire division wall 16, between waterwall 19 and vertical heating fire division wall 16, return heat dissipation chamber 20 under the flue gas, the lower edge of waterwall 19 is inserted to the furnace internal-lining bottom, be exhaust gases passes 21 between the bottom of waterwall 19 and the burner hearth diapire, deashing carries out 3-stage dust-removal by deadweight in crossing exhaust gases passes 21, between waterwall 19 and furnace internal-lining rear wall, return out heat dissipation chamber 22 for flue gas, connect flue gas in the upper end that flue gas returns out heat dissipation chamber 22 and go out pipe 23, and go out pipe 23 by flue gas and connect successively and go up desulfurizing dust-collector and air-introduced machine, under preceding returning fiery heat dissipation chamber 18 and flue gas, return be equipped with in the heat dissipation chamber 20 about laterally the heating pipe restraint 10, in flue gas returns out heat dissipation chamber 22 about being provided with laterally the heating pipe restraint 10 ', tiltedly horizontal heating pipe restraints 11 before and after also being provided with; Described vertical heating fire division wall 16 and before return fire laterally heating fire division wall 17 by the refractory material body of wall and about horizontal festoon 10 " constitute, about it laterally the heating pipe restraint 10 and " become row's shape to be embedded in the refractory material body of wall; In waterwall 19, fill with front and back tiltedly laterally the heating pipe restraint 11 water that are connected, about pyrotechnics is all walked around successively laterally the heating pipe restraint 10 and waterwall 19, thereby increased heating surface (area) (HS to water; Described waterwall 19 is made by the vertical steel plate welding of bilayer, and the base is along sealing the upper edge opening.

Claims (2)

1, a kind of CLSG type coal gasification combustion environmental-friendly energy-saving normal-pressure hot-water boiler, by shell body (1), base (2), cleanout door (3), upper furnace door (4), lower furnace door (4 '), shoot door (5), hot water delivery pipe (6), loop back water pipe (7), water pipe (8) expands, gland steam exhauster (9) constitutes, on, lower furnace door (4,4 ') be located at the antetheca bottom of shell body (1), shoot door (5) is located at the antetheca middle part of shell body (1), hot water delivery pipe (6) is located at the top of shell body (1) rear wall, loop back water pipe (7) and be located at the bottom of shell body (1) rear wall, gland steam exhauster (9) and bloated water pipe (8) all are located at the top of shell body (1), in shell body (1), be provided with by about the horizontal inner bag formed of heating pipe's bundle (10), the bottom is provided with first combustion chamber (12) and second combustion chamber (13) in shell body (1), in the bottom of second combustion chamber (13) is fire grate (14), in the bottom of fire grate (14) is lime-ash case (15), upper furnace door (4) is fixed on by turning cylinder on the frame of oral area of first combustion chamber (12), lower furnace door (4 ') is fixed on by corresponding rotating shaft on the frame of oral area of second combustion chamber (13), it is characterized in that establishing vertical heating fire division wall (16) at the rear side of first combustion chamber (12) and second combustion chamber (13), go forward to return laterally heating fire division wall (17) of fire in the upper end connection of vertically heating fire division wall (16), before return and return fiery heat dissipation chamber (18) before fire laterally between heating fire division wall (17) and first combustion chamber (12) is, establish waterwall (19) at the rear side that vertically heats fire division wall (16), between waterwall (19) and vertical heating fire division wall (16), return heat dissipation chamber (20) under the flue gas, between the bottom of waterwall (19) and the burner hearth diapire exhaust gases passes (21), between waterwall (19) and furnace internal-lining rear wall, return out heat dissipation chamber (22) for flue gas, the last flue gas of upper end connection that returns out heat dissipation chamber (22) at flue gas goes out pipe (23), under preceding returning fiery heat dissipation chamber (18) and flue gas, return be equipped with in the heat dissipation chamber (20) about horizontal heating pipe's bundle (10), laterally the heating pipe restraints (10 ') about being provided with in flue gas returns out heat dissipation chamber (22), tiltedly horizontal heating pipe's bundle (11) before and after also being provided with.

2, CLSG type coal gasification combustion environmental-friendly energy-saving normal-pressure hot-water boiler according to claim 1, it is characterized in that described vertical heating fire division wall (16) and before return fire laterally heating fire division wall (17) by the refractory material body of wall and about laterally festoon (10 ") constitute, about it laterally heating pipe's bundle (10 ") become row's shape to be embedded in the refractory material body of wall; Described waterwall (19) is made by the vertical steel plate welding of bilayer, and the base is along sealing the upper edge opening.

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