CN202065985U

CN202065985U - Transversal chain grate boiler with double boiler barrels

Info

Publication number: CN202065985U
Application number: CN2011201542273U
Authority: CN
Inventors: 姜余科; 杨光; 张丽雪
Original assignee: CHANGCHUN SANDING BOILER Co Ltd
Current assignee: CHANGCHUN SANDING BOILER Co Ltd
Priority date: 2011-05-16
Filing date: 2011-05-16
Publication date: 2011-12-07
Anticipated expiration: 2021-05-16

Abstract

The utility model discloses a transversal chain grate boiler with double boiler barrels, which consists of a chain grate and a boiler body. A hearth is arranged inside the boiler body and is internally provided with a front arch and a rear arch; hearth water cooled walls are arranged on the inner wall of the hearth and the lower wall of the rear arch; the chain grate is arranged below the hearth; a convection tube bundle chamber is arranged at the rear of the hearth; a burnout chamber exists between the convection tube bundle chamber and the hearth; an upper boiler barrel is arranged at the top of the convection tube bundle chamber; a lower boiler barrel is arranged at the lower part of the convection tube bundle chamber; a convection tube bundle is arranged on the wall of the convection tube bundle chamber; a tail flue is arranged at the rear of the boiler body and is communicated with the convection tube bundle chamber; the tail flue is internally provided with a coal saver and an air preheater from top to bottom; a flue outlet is arranged below the tail flue; the upper boiler barrel, the lower boiler barrel, the hearth water cooled wall and the coal saver are communicated with each other and are internally filled with media; and a medium outlet and safety accessories are arranged on the upper boiler barrel. The transversal chain grate boiler with double boiler barrels has strong output, stable in operation and convenience for regulation; moreover, the boiler has high thermal efficiency and is environmentally-friendly and energy-saving.

Description

Double-barrel transverse formula chain grate boiler

Technical field

The utility model relates to a kind of boiler, particularly a kind of double-barrel transverse formula chain grate boiler.

Background technology

At present, existing chain grate boiler undercapacity, fluctuation of service is adjusted inconvenient; Traveling-grate stoker is to leak coal stove row, ashpit losses is arranged, moreover existing boiler structure makes boiler thermal output low; Each parts criteria of right and wrong structure of existing boiler, the generalization degree is low, does not have interchangeability with other boilers.

Summary of the invention

The purpose of this utility model is in order to overcome the shortcoming that above-mentioned existing chain grate boiler exists, and a kind of double-barrel transverse formula chain grate boiler is provided.

The utility model is by traveling-grate stoker, body of heater constitutes, body of heater inside has burner hearth, burner hearth inside has face arch and rear arch, the inwall of burner hearth and the lower wall of rear arch have furnace wall cooling, traveling-grate stoker is arranged on the below of burner hearth, the rear portion of burner hearth has the convection bank chamber, has secondary furnace between convection bank chamber and the burner hearth, the top of convection bank chamber is provided with upper drum, the bottom of convection bank chamber is provided with lower drum, and the locular wall of convection bank chamber is provided with convection bank, and the rear portion of body of heater has back-end ductwork, this back-end ductwork is communicated with the convection bank chamber, be provided with economizer and air preheater in the back-end ductwork from top to bottom, the below of back-end ductwork has flue outlet, upper drum, lower drum, be communicated with between furnace wall cooling and the economizer, its inside is full of medium, and the upper drum top has media outlet and safety attachment.

Described traveling-grate stoker is not for leaking coal stove row.

The beneficial effects of the utility model are:

1. the foot of exerting oneself, stable, easy to adjust.

2. this boiler is the waterpipe type structure, and burner hearth, secondary furnace and back-end surfaces all have enough spaces, can arrange a large amount of heating surfaces according to calculating, the boiler output foot.

3. adopted the advanced technology of dedusting in stove, under the situation that boiler overall volume and metal consumption all do not increase, this stove can reduce the boiler original discharge concentration significantly, makes environmental protection index reach higher level.

4. adopt the layering coal supply technology and do not leak coal stove row, strengthen burning of coal, reduce ashpit losses, further improved boiler thermal output.

5, each parts has all adopted normal structure in the boiler design, and generalization degree height has extremely strong interchangeability with other boilers.

Description of drawings

Fig. 1 looks schematic diagram for the master of the utility model embodiment.

Fig. 2 looks schematic diagram for the left side of the utility model embodiment.

Fig. 3 is the schematic top plan view of the utility model embodiment.

The specific embodiment

See also Fig. 1, Fig. 2 and shown in Figure 3, be embodiment of the present utility model, it is by traveling-grate stoker 1, body of heater 5 constitutes, body of heater 5 inside have burner hearth 16, burner hearth 16 inside have face arch 2 and rear arch 4, the lower wall of the inwall of burner hearth 16 and rear arch 4 has furnace wall cooling 3, traveling-grate stoker 1 is arranged on the below of burner hearth 16, the rear portion of burner hearth 16 has convection bank chamber 17, has secondary furnace 6 between convection bank chamber 17 and the burner hearth 16, the top of convection bank chamber 17 is provided with upper drum 8, the bottom of convection bank chamber 17 is provided with lower drum 11, and the locular wall of convection bank chamber 17 is provided with convection bank 9, and the rear portion of body of heater 5 has back-end ductwork 15, this back-end ductwork 15 is communicated with convection bank chamber 17, be provided with economizer 10 and air preheater 12 in the back-end ductwork 15 from top to bottom, the below of back-end ductwork 15 has flue outlet 13, upper drum 8, lower drum 11, be communicated with between furnace wall cooling 3 and the economizer 10, its inside is full of medium, and upper drum 8 tops have media outlet 7 and safety attachment 14.

Described traveling-grate stoker 1 is not for leaking coal stove row.

The course of work and the principle of present embodiment are:

1, flue gas flow: fuel enters traveling-grate stoker 1 by coal bunker, air enters burner hearth 16 by the air channel, bottom by traveling-grate stoker 1, fuel burns on traveling-grate stoker 1, high-temperature flue gas upwards flows along face arch 2, rear arch 4 broken line directions in the burner hearth 16, the high-temperature flue gas that generates enters back-end ductwork 15 after burner hearth 16 and secondary furnace 6 radiation heat releases, after washing away economizer 10 and air preheater 12, discharge body of heater through flue outlet 13.The flue gas that boiler is discharged purifies through deduster, arranges to atmosphere through chimney again.

2, medium flow process: lower drum 11 and upper drum 8 are load mediums, are steam water interfaces in the upper drum 8 of steam oven, control liquid level automatically by the water level auto-controller, are hot water in the lower drum 11; Full water in the lower drum on the water heater.Steam (steam oven) or hot water (water heater) are delivered to the user by media outlet 7 by external pipe.

3, heat exchange principle: all be full of medium in water pipe, convection bank 9, economizer 10 and the lower drum 11 in furnace wall cooling 3, the secondary furnace 6, with the water in the heat transferred furnace wall cooling 3, other passes to convection heating surface by the heat convection mode to high-temperature flue gas in the burner hearth 16 by the radiation heat transfer mode.

Claims

1. A double-drum horizontal chain grate boiler is characterized in that: it is composed of a chain grate (1) and a body of furnace (5), and the body of furnace (5) has a hearth (16) inside, and a hearth (16) The interior has a front arch (2) and a rear arch (4), the inner wall of the furnace (16) and the lower wall of the rear arch (4) have a furnace water wall (3), and the chain grate (1) is arranged on the bottom of the furnace (16). Below, there is a convection tube bundle chamber (17) at the rear of the furnace (16), there is a burnout chamber (6) between the convection tube bundle chamber (17) and the furnace (16), and an upper drum is arranged on the top of the convection tube bundle chamber (17) (8), the bottom of the convection tube bundle chamber (17) is provided with a lower drum (11), the chamber wall of the convection tube bundle chamber (17) is provided with a convection tube bundle (9), and the rear portion of the body of heater (5) has a tail flue ( 15), the tail flue (15) communicates with the convection tube bundle chamber (17), and the tail flue (15) is provided with an economizer (10) and an air preheater (12) from top to bottom, and the tail flue ( 15) has a flue outlet (13) at the bottom, and the upper drum (8), the lower drum (11), the furnace water wall (3) and the economizer (10) are connected, and the inside is filled with medium. There is a medium outlet (7) and a safety accessory (14) above the cylinder (8).

2. A double-drum horizontal chain grate boiler according to claim 1, characterized in that: said chain grate (1) is a non-leaking coal grate.