CN2555480Y - High efficiency thermal tube horizontal hot water boiler - Google Patents

Abstract

The utility model relates to a high efficiency heat pipe horizontal hot water boiler which comprises a boiler body, a coal bucket, a boiler grate, a front arch, a back arch and a boiler wall. A smoke isolating wall (14) is built on an inclined plane of the middle upper part of each of convection pipe bundles (13) of both sides of a boiler barrel (5). Smoke channels (16) are formed between the smoke isolating wall and the boiler wall 11. Hot pipe bundles (6) are connected to and distributed on the boiler barrel (5) in the smoke channel (16). Smoke upwards enters the smoke channels (16) of the left and the right sides through the back part of a hearth and goes forwards to wash the hot pipe bundles (6) for heat exchange. Then, the smoke backwards flows out of the boiler body through a smoke pipe (50) in the boiler barrel (5). The utility model has the advantages of simple and reasonable structure, convenient operation of poke and ash removal, small volume, easy manufacture, full exertion of hot pipe function, heat efficiency enhancement and convenient maintenance and has no increase of the width and the length of the boiler body.

Description

The horizontal hot-water boiler of high-efficiency heat pipe

Technical field

The utility model relates to a kind of coal-fired heating normal-pressure hot-water boiler, particularly a kind of by single drum longitudinal normal-pressure hot-water boiler that heat pipe is housed.

Background technology

Existing hot-water boiler has varied, single drum longitudinal normal-pressure hot-water boiler is wherein arranged, even but single its concrete structure of drum longitudinal normal-pressure hot-water boiler also is not quite similar, for reaching certain effect great majority on the furnace body structure foundation of single drum longitudinal boiler, carry out various convective heat exchange tube bundles and flue gas flow structure and be provided with, form characteristics separately.Be everlasting and increase the cloth convection bank in the body of heater for improving the thermal efficiency, increase heating surface, such result often causes the boiler structure complexity, and body of heater increases, and cost improves, maintenance and inconvenient operation.Also constantly there was the people that heat pipe is applied in the boiler in the last few years, because heat pipe has heating soon, the characteristics that efficient is high, boiler is improved the thermal efficiency can play a positive role, but structure of furnace body is different with the heat pipe setting, and the thermal efficiency and the characteristics of its boiler also have nothing in common with each other.Existing heat pipe boiler often changes former structure of furnace body greatly for setting up heat pipe, increase the flue gas flow of boiler, or strengthen exhaust gases passes and lay heat pipe, as formation exhaust gases passes from top to bottom is set in the boiler body both sides, in this, arrange special-shaped heat pipe, but the narrower heat extraction pipe that generally can only be provided with of this flue, can not pacify heat pipe fully requirement layout heat pipe is set, give full play to the effect of heat pipe, even now it still just cause the boiler setting outside width to increase, body of heater increases, and also makes poking fire when boiler normally uses, the difficulty that operation commonly used such as deashing becomes and inconvenient.

Summary of the invention

The purpose of this utility model is to utilize hot pipe technique, provides a kind of simple and reasonable, and volume is little, makes easyly, and production cost is low, thermal efficiency height, easy to operate single drum longitudinal normal-pressure hot-water boiler.

The utility model is embraced and has been drawn together boiler body, coal bunker 2, fire grate 1, face arch 3, rear arch 4, furnace wall 11, in drum 5, be provided with smoke pipe 50, be provided with smoke input chamber 10 at drum 5 front ends, the water-cooling wall tube bank 12 and the convection bank 13 of drum 5 both sides are intervally arranged, the upper end of water-cooling wall tube bank 12 is connected with the side, middle part of drum 5, convection bank 13 upper ends are connected with the lower side of drum 5, the middle and upper part of convection bank 13 is skewed, the middle and lower part of convection bank 13 is closed up to erect downwards with water-cooling wall tube bank 12 and is connected with collection case 9, on the inclined plane, middle and upper part of convection bank 13, build brick baffle 14 is arranged, the furnace wall 11 that itself and water-cooling wall are restrained 12 outsides forms exhaust gases passes 16, in this exhaust gases passes 16, be connected and be laid with heat pipe bundle 6 with drum 5, flue gas upwards enters the smoke chamber 10 that exhaust gases passes 16 arrives drum 5 front ends forward through the burner hearth rear portion, flow out body of heater backward at the smoke pipe in drum 5 50 then.

The utility model is simple and reasonable, does not increase body of heater width and length, and it is easy to operate with deashing to poke fire, and its volume is little, make easyly, production cost is low, and it is reasonable that heat pipe is provided with the position, can give full play to the effect of hot heat pipe, improve thermal efficiency height, also be convenient to maintenance, the service life of guaranteeing heat pipe.

Description of drawings

Fig. 1, the 2nd, the utility model structural representation, wherein Fig. 2 is the A-A cutaway view of Fig. 1.

The specific embodiment

The utility model is by drum 5, the outer water-cooling wall tube bank 12 of drum both sides, internal layer convection bank 13, the furnace body that collection case 9 constitutes, coal bunker 2, fire grate 1, face arch 3, rear arch 4, furnace wall 11 constitutes, in drum 5, be provided with smoke pipe 50, be provided with smoke input chamber 10 at drum 5 front ends, the water-cooling wall tube bank 12 and the convection bank 13 of drum 5 both sides are intervally arranged, the upper end of water-cooling wall tube bank 12 is connected with the side, middle part of drum 5, convection bank 13 upper ends are connected with the lower side of drum 5, the middle and upper part of convection bank 13 is skewed, the middle and lower part of convection bank 13 is closed up to erect downwards with water-cooling wall tube bank 12 and is connected with collection case 9, on the inclined plane, middle and upper part of convection bank 13, build refractory concrete brick baffle 14 is arranged, partition wall 14 surrounds symmetrical two exhaust gases passes 16 with the furnace wall 11 that water-cooling wall is restrained 12 outsides, the rear portion of exhaust gases passes 16 communicates with the burner hearth rear portion, about be connected with drum 5 in two exhaust gases passes 16 and be laid with heat pipe bundle 6, insert in the drum 5 upper end of heat pipe bundle 6, the lower end places in the exhaust gases passes 16, when fire coal when burner hearth burns, high-temperature flue gas upwards enters left and right sides exhaust gases passes 16 and moves forward and wash away heat pipe bundle 6 and carry out heat exchange through the burner hearth rear portion, the smoke pipe 50 that enters the drum 5 from the smoke input chamber 10 of drum 5 front ends flows out body of heater backward again.Its exhaust gases passes 16 is to expand to boiler intracavity, exhaust gases passes 16 spaciousnesses, can arrange heat pipe according to the specification requirement of heat pipe fully, give full play to the effect of heat pipe, the setting of exhaust gases passes 16 and heat pipe bundle 6 does not increase the body of heater width, keeps former body of heater width, do not influence other structure of boiler, do not influence the fireman yet and poke fire and the deashing operation, simple in structure, easy to maintenance.

Claims (1)

1, the horizontal hot-water boiler of high-efficiency heat pipe, embrace and draw together drum (5), the outer water-cooling wall tube bank (12) of drum (5) both sides, internal layer convection bank (13), the furnace body that collection case (9) constitutes, coal bunker (2), fire grate (1), face arch (3), rear arch (4), furnace wall (11) constitutes, it is characterized in that in drum (5), being provided with smoke pipe (50), be provided with smoke input chamber (10) at drum (5) front end, the water-cooling wall tube bank (12) and the convection bank (13) of drum (5) both sides are intervally arranged, the upper end of water-cooling wall tube bank (12) is connected with the side, middle part of drum (5), convection bank (13) upper end is connected with the lower side of drum (5), the middle and upper part of convection bank (13) is skewed, the middle and lower part of convection bank (13) is closed up to erect downwards with water-cooling wall tube bank (12) and is connected with collection case (9), on the inclined plane, middle and upper part of convection bank (13), build refractory concrete brick baffle (14) is arranged, partition wall (14) surrounds symmetrical two exhaust gases passes (16) with the furnace wall (11) in water-cooling wall tube bank (12) outside, the rear portion of exhaust gases passes (16) communicates with the burner hearth rear portion, about be connected with drum (5) in two exhaust gases passes (16) and be laid with heat pipe bundle (6), high-temperature flue gas upwards enters left and right sides exhaust gases passes (16) through the burner hearth rear portion, arrive the smoke input chamber (10) of drum (5) front end forward, flow out body of heater backward at the smoke pipe (50) in drum (5) then.