CN2296973Y

CN2296973Y - Small atmospheric efficient energy-saving boiler

Info

Publication number: CN2296973Y
Application number: CN 97223800
Authority: CN
Inventors: 张喜文
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-06-09
Filing date: 1997-06-09
Publication date: 1998-11-11
Anticipated expiration: 2007-06-09

Abstract

The utility model discloses a small atmospheric high-efficiency energy-saving boiler. The utility model is composed of a base seat, a boiler shell, a boiler container, a water outlet pipe, a water return pipe and a contamination drainage pipe. The interior of the boiler container is divided into a boiler hearth, a combustion gas chamber and a smoke gas passage. The interior of the combustion gas chamber is provided with a group of longitudinal fire pipes and a row of transverse convection heating pipes. The combustion gas flushes the utility model in staggered, and the heat efficiency of the boiler is improved. The interior of the smoke gas passage is provided with a dust blocking baffling heater and a vertical convection heating pipe. The high-temperature combustion gas has secondary flushing on the dust blocking baffling heater, and the fast heat conduction and dust reduction functions are performed. The utility model is suitable for the building area of 200m< 2 >-3, 000m< 2 > to get heat and supply hot water.

Description

Small-sized normal pressure energy-saving efficient boiler

The utility model relates to a kind of civilian normal-pressure boiler.

General civilian common miniature boiler, all adopt vertical cylinder type single flow structure, mainly by shell, flue, end socket, gas outlet, add the hot water layer and form, simple, less economical, the general thermal efficiency of boiler structure causes energy waste and air environmental pollution about 28-35%; And domestic advanced minitype vertical type bent tube boiler, it mainly is that the little cold wall pipe of a circle is arranged in higher burner hearth, be connected within furnace roof and the flue sidewall, two misarrangement row combs are set again outside shell, prolonged flue gas flow, to improving boiler thermal output and reducing atmosphere pollution and played positive role, the thermal efficiency is generally 55-60%.

The purpose of this utility model is to provide a kind of small-sized normal pressure energy-saving efficient boiler, characteristics such as have body of heater internal structure compactness, sufficient combustion, the soot emissions rate is low, the thermal efficiency is high, energy-saving effect is remarkable.

For achieving the above object, the utility model boiler is by base, shell, last lower furnace, outlet pipe, composition such as return pipe and blow-off pipe, boiler is fixed on the base, is last lower furnace in the shell, and the shell end socket is provided with outlet pipe, the shell bottom is provided with return pipe and blow-off pipe, being divided into burner hearth, fuel chamber and exhaust gases passes three parts in the flue from bottom to top, is fire grate below the burner hearth, and the burner hearth side is provided with rectangle breast hole and ellipse fire door; Fixing upper and lower fire tube tube sheet is provided with one group of vertical fire tube in the fuel chamber between the tube sheet, logical combustion gas in the pipe, and pipe is outer to be water jacket, the upper perforated plate top is provided with a horizontal row to the Convective Heating pipe; Be provided with resistance dirt baffling heater in the exhaust gases passes, one group of upright Convective Heating pipe is set between this heater and the furnace gall head, walk cigarette outside the pipe, leak water in the pipe.Be provided with cleaning door at flue and shell middle and upper part, can clean the body of heater crock at any time.

Advantage of the present utility model is:

(1) owing to adopt water, fire tube and use principle, combustion gas effectively improves boiler thermal output to crisscross the washing away of extreme misery pipe.

(2) set up resistance dirt baffling heater, high-temperature fuel gas is to resistance dirt baffler large tracts of land transversal flow and secondary parallel baffled, and the burner hearth of turning back of the dust thing in the combustion gas carries out second-time burning effectively, makes water Fast Heating in the water jacket, play fast conduction of heat, and reduce air environmental pollution.

(3) the reasonable arrangement of body of heater inner structure, increased fuel gas flow path, changed gas-flow to, improved gas flow rate, boiler thermal output reaches 74%.

The utility model is described in further detail below in conjunction with accompanying drawing;

Fig. 1 is the utility model front view;

Fig. 2 is the utility model left view;

Fig. 3 is the utility model vertical view;

Fig. 4 is that Fig. 1 is along A-A direction cutaway view;

Fig. 5 is that Fig. 1 is along B-B direction cutaway view;

Fig. 6 is that Fig. 1 is along C-C direction cutaway view.

Normal-pressure boiler as shown in the figure, by base 1, shell 5, last lower furnace 15,6, outlet pipe 18, return pipe 23 and blow-off pipe 24 are formed, be divided into burner hearth 29 in the flue from bottom to top, fuel chamber 28 and exhaust gases passes 22 3 parts, it below the burner hearth fixed grate 2, the side is provided with rectangle breast hole 4 and ellipse fire door 7, fixing fire tube tube sheet 8 up and down in the fuel chamber, 10, be provided with one group of vertical fire tube 9 between the two fire tube tube sheets, last fire tube tube sheet 10 tops are provided with a horizontal row to Convective Heating pipe 11, be provided with resistance dirt baffling heater 12 in the exhaust gases passes, one group of upright Convective Heating pipe 14 is set between this heater and the furnace gall head 16, exhaust gases passes one side is provided with cleaning door 13,3 are U type leftover bits and pieces circle, and 17 is the shell end socket, and 25 is that the base supporting plate supports angle bar, 26 is base rectangle cleaning door, and 27 is blower mouth.

For guaranteeing that boiler safety normally moves, this boiler is provided with boiler safety valve seat 21, Pressure gauge valve seat 20 and water temperature and shows meter valve seat 19 on the shell end socket, safety valve, Pressure gauge and water temperature are installed respectively at each valve seat place show meter.The utility model is a fixed grate, is applicable to all kinds of bituminous coal combustions, and draft type is gravity-flow ventilation, three kinds of draft types of forced ventilation or induced draught.The utility model has 12 kinds to be applicable to 200m such as residential building, enterprise ²-3,000m ²The heating of construction area and heat supply water use.

Claims

1, a kind of small-sized normal pressure energy-saving efficient boiler, form by base (1), shell (5), last lower furnace (15,6), outlet pipe (18), return pipe (23) and blow-off pipe (24), boiler is fixed on the base (1), in the shell is flue, shell end socket (17) is provided with outlet pipe, the boiler bottom is provided with return pipe and blow-off pipe, it is characterized in that: flue is divided into burner hearth (29), fuel chamber (28) and exhaust gases passes (22) three parts from bottom to top, fixed grate (2) below the burner hearth; Fixing upper and lower fire tube tube sheet (10,8) is provided with one group of vertical fire tube (9) in the fuel chamber between the tube sheet, logical combustion gas in the pipe, and last fire tube tube sheet (10) top is provided with a horizontal row to Convective Heating pipe (11); Be provided with resistance dirt baffling heater (12) in the exhaust gases passes (22), one group of upright Convective Heating pipe (14) is set between this heater and the furnace gall head (16).